US20200060286A1 - Compositions and related methods for controlling vector-borne diseases - Google Patents

Compositions and related methods for controlling vector-borne diseases Download PDF

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US20200060286A1
US20200060286A1 US16/480,117 US201816480117A US2020060286A1 US 20200060286 A1 US20200060286 A1 US 20200060286A1 US 201816480117 A US201816480117 A US 201816480117A US 2020060286 A1 US2020060286 A1 US 2020060286A1
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Ignacio Martinez
Zachary Garo Armen
Barry Andrew Martin
Maier Steve Avendano Amado
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Flagship Pioneering Innovations V Inc
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/04Antibacterial agents
    • A01N63/02
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N63/00Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
    • A01N63/50Isolated enzymes; Isolated proteins
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • A61K38/16Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • A61K38/16Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • A61K38/17Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • A61K38/1703Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
    • A61K38/1709Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
    • A61K38/1729Cationic antimicrobial peptides, e.g. defensins
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    • C07K14/43504Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates
    • C07K14/43513Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from arachnidae
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    • C07K14/43563Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from insects
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    • C07K14/435Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • C07K14/43504Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates
    • C07K14/43563Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from insects
    • C07K14/43577Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from insects from flies
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    • C07K14/43504Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates
    • C07K14/43563Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from insects
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    • C07K14/46Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
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    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/435Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • C07K14/46Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
    • C07K14/47Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
    • C07K14/4701Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals not used
    • C07K14/4723Cationic antimicrobial peptides, e.g. defensins
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
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    • C07K2319/00Fusion polypeptide
    • C07K2319/01Fusion polypeptide containing a localisation/targetting motif
    • CCHEMISTRY; METALLURGY
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    • C07KPEPTIDES
    • C07K2319/00Fusion polypeptide
    • C07K2319/01Fusion polypeptide containing a localisation/targetting motif
    • C07K2319/10Fusion polypeptide containing a localisation/targetting motif containing a tag for extracellular membrane crossing, e.g. TAT or VP22
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Definitions

  • Insects function as vectors for pathogens causing severe disease in humans and animals such as dengue, trypanosomiases, and malaria.
  • Vector-borne diseases that infect animals, such as livestock, represent a major global public health burden.
  • compositions and methods for modulating the fitness of insects for controlling the spread of vector-borne diseases in animals includes an agent that alters a level, activity, or metabolism of one or more microorganisms resident in a host, the alteration resulting in a modulation in the host's fitness.
  • a method of decreasing fitness of a vector for an animal pathogen, the method including delivering an antimicrobial peptide having at least 90% sequence identity (e.g., at least 90%, 92%, 94%, 96%, 98%, or 100% sequence identity) with one or more of the following: cecropin (SEQ ID NO: 82), melittin, copsin, drosomycin (SEQ ID NO: 93), dermcidin (SEQ ID NO: 81), andropin (SEQ ID NO: 83), moricin (SEQ ID NO: 84), ceratotoxin (SEQ ID NO: 85), abaecin (SEQ ID NO: 86), apidaecin (SEQ ID NO: 87), prophenin (SEQ ID NO: 88), indolicidin (SEQ ID NO: 89), protegrin (SEQ ID NO: 90), tachyplesin (SEQ ID NO: 91), or defen
  • the delivery includes delivering the antimicrobial peptide to at least one habitat where the vector grows, lives, reproduces, feeds, or infests.
  • the antimicrobial peptide may be delivered in an insect comestible composition for ingestion by the vector.
  • the antimicrobial peptide may be formulated as a liquid, a solid, an aerosol, a paste, a gel, or a gas composition.
  • the insect may be at least one of a mosquito, midge, louse, sandfly, tick, triatomine bug, tsetse fly, or flea.
  • compositions including an antimicrobial peptide having at least 90% sequence identity (e.g., at least 90%, 92%, 94%, 96%, 98%, or 100% sequence identity) with one or more of the following: cecropin (SEQ ID NO: 82), melittin, copsin, drosomycin (SEQ ID NO: 93), dermcidin (SEQ ID NO: 81), andropin (SEQ ID NO: 83), moricin (SEQ ID NO: 84), ceratotoxin (SEQ ID NO: 85), abaecin (SEQ ID NO: 86), apidaecin (SEQ ID NO: 87), prophenin (SEQ ID NO: 88), indolicidin (SEQ ID NO: 89), protegrin (SEQ ID NO: 90), tachyplesin (SEQ ID NO: 91), or defensin (SEQ ID NO: 92) formulated for targeting a microorganism in a vector (
  • the antimicrobial peptide may be at a concentration of about 0.1 ng/g to about 100 mg/g (about 0.1 ng/g to about 1 ng/g, about 1 ng/g to about 10 ng/g, about 10 ng/g to about 100 ng/g, about 100 ng/g to about 1000 ng/g, about 1 mg/g to about 10 mg/g, about 10 mg/g to about 100 mg/g) or about 0.1 ng/mL to about 100 mg/mL (about 0.1 ng/mL to about 1 ng/mL, about 1 ng/mL to about 10 ng/mL, about 10 ng/mL to about 100 ng/mL, about 100 ng/mL to about 1000 ng/mL, about 1 mg/mL to about 10 mg/mL, about 10 mg/mL to about 100 mg/mL) in the composition.
  • the antimicrobial peptide may further include a targeting domain.
  • the antimicrobial peptide may further include a cell penetrating peptide.
  • the composition includes an agent that alters a level, activity, or metabolism of one or more microorganisms resident in an insect host, the alteration resulting in a decrease in the insect host's fitness.
  • the one or more microorganisms may be a bacterium or fungus resident in the host.
  • the bacterium resident in the host is at least one selected from the group consisting of Candidatus spp, Buchenera spp, Blattabacterium spp, Baumania spp, Wigglesworthia spp, Wolbachia spp, Rickettsia spp, Orientia spp, Sodalis spp, Burkholderia spp, Cupriavidus spp, Frankia spp, Snirhizobium spp, Streptococcus spp, Wolinella spp, Xylella spp, Erwinia spp, Agrobacterium spp, Bacillus spp, Paenibacillus spp, Streptomyces spp, Micrococcus spp, Corynebacterium s
  • the fungus resident in the host is at least one selected from the group consisting of Candida, Metschnikowia, Debaromyces, Starmerella, Pichia, Cryptococcus, Pseudozyma, Symbiotaphrina bucneri, Symbiotaphrina Scheffersomyces shehatae, Scheffersomyces stipites, Cryptococcus, Trichosporon, Amylostereum areolatum, Epichloe spp, Pichia pinus, Hansenula capsulate, Daldinia decipien, Ceratocytis spp, Ophiostoma spp, and Attamyces bromatificus .
  • the bacteria is a Wolbachia spp. (e.g., in a mosquito host). In certain embodiments, the bacteria is a Rickettsia spp. (e.g., in a tick host).
  • the agent which hereinafter may also be referred to as a modulating agent, may alter the growth, division, viability, metabolism, and/or longevity of the microorganism resident in the host.
  • the modulating agent may decrease the viability of the one or more microorganisms resident in the host.
  • the modulating agent increases growth or viability of the one or more microorganisms resident in the host.
  • the modulating agent is a phage, a polypeptide, a small molecule, an antibiotic, a bacterium, or any combination thereof.
  • the phage binds a cell surface protein on a bacterium resident in the host. In some embodiments, the phage is virulent to a bacterium resident in the host. In some embodiments, the phage is at least one selected from the group consisting of Myoviridae, Siphoviridae, Podoviridae, Lipothrixviridae, Rudiviridae, Ampullaviridae, Bicaudaviridae, Clavaviridae, Corticoviridae, Cystoviridae, Fuselloviridae, Gluboloviridae, Guttaviridae, Inoviridae, Leviviridae, Microviridae, Plasmaviridae, and Tectiviridae.
  • the polypeptide is at least one of a bacteriocin, R-type bacteriocin, nodule C-rich peptide, antimicrobial peptide, lysin, or bacteriocyte regulatory peptide.
  • the small molecule is a metabolite.
  • the antibiotic is a broad-spectrum antibiotic.
  • the modulating agent is a naturally occurring bacteria.
  • the bacteria is at least one selected from the group consisting of Bartonella apis, Parasaccharibacter apium, Frischella perrara, Snodgrassella alvi, Gilliamela apicola, Bifidobacterium spp, and Lactobacillus spp.
  • the bacterium is at least one selected from the group consisting of Candidatus spp, Buchenera spp, Blattabacterium spp, Baumania spp, Wigglesworthia spp, Wolbachia spp, Rickettsia spp, Orientia spp, Sodalis spp, Burkholderia spp, Cupriavidus spp, Frankia spp, Snirhizobium spp, Streptococcus spp, Wolinella spp, Xylella spp, Erwinia spp, Agrobacterium spp, Bacillus spp, Paenibacillus spp, Streptomyces spp, Micrococcus spp, Corynebacterium spp, Corynebacterium spp, Corynebacterium spp, Corynebacterium spp, Corynebacterium spp, Coryn
  • host fitness may be measured by survival, reproduction, or metabolism of the host.
  • the modulating agent may modulate the host's fitness by increasing pesticidal susceptibility of the host (e.g., susceptibility to a pesticide listed in Table 12).
  • the modulating agent modulates the host's fitness by increasing pesticidal susceptibility of the host.
  • the pesticidal susceptibility is bactericidal or fungicidal susceptibility.
  • the pesticidal susceptibility is insecticidal susceptibility.
  • the composition may include a plurality of different modulating agents.
  • the composition includes a modulating agent and a pesticidal agent (e.g., a pesticide listed in Table 12).
  • the pesticidal agent is a bactericidal or fungicidal agent.
  • the pesticidal agent is an insecticidal agent.
  • modulating agent may be linked to a second moiety.
  • the second moiety is a modulating agent.
  • the modulating agent may be linked to a targeting domain.
  • the targeting domain targets the modulating agent to a target site in the host.
  • the targeting domain targets the modulating agent to the one or more microorganisms resident in the host.
  • the modulating agent may include an inactivating pre- or pro-sequence, thereby forming a precursor modulating agent.
  • the precursor modulating agent is converted to an active form in the host.
  • the modulating agent may include a linker.
  • the linker is a cleavable linker.
  • the composition may further include a carrier.
  • the carrier may be an agriculturally acceptable carrier.
  • the composition may further include a host bait, a sticky agent, or a combination thereof.
  • the host bait is a comestible agent and/or a chemoattractant.
  • the composition may be at a dose effective to modulate host fitness.
  • the composition may be formulated for delivery to a microorganism inhabiting the gut of the host. In any of the above compositions, the composition may be formulated for delivery to a microorganism inhabiting a bacteriocyte of the host and/or the gut of the host.
  • the composition may be formulated for delivery to a plant. In some embodiments, the composition may be formulated for use in a host feeding station.
  • the composition may be formulated as a liquid, a powder, granules, or nanoparticles.
  • the composition is formulated as one selected from the group consisting of a liposome, polymer, bacteria secreting peptide, and synthetic nanocapsule.
  • the synthetic nanocapsule delivers the composition to a target site in the host.
  • the target site is the gut of the host.
  • the target site is a bacteriocyte in the host.
  • hosts that include any of the above compositions.
  • the host is an insect.
  • the insect is a mosquito, midge, louse, sandfly, tick, triatomine bug, tsetse fly, or flea.
  • the insect is a mosquito.
  • the insect is a tick.
  • the insect is a mite.
  • the insect is a louse.
  • a system for modulating a host's fitness comprising a modulating agent that targets a microorganism that is required for a host's fitness, wherein the system is effective to modulate the host's fitness, and wherein the host is an insect.
  • the modulating agent may include any of the compositions described herein.
  • the modulating agent is formulated as a powder.
  • the modulating agent is formulated as a solvent.
  • the modulating agent is formulated as a concentrate.
  • the modulating agent is formulated as a diluent.
  • the modulating agent is prepared for delivery by combining any of the previous compositions with a carrier.
  • the method of modulating the fitness of an insect host includes delivering the composition of any one of the previous claims to the host, wherein the modulating agent targets the one or more microorganisms resident in the host, and thereby modulates the host's fitness.
  • the method of modulating microbial diversity in an insect host includes delivering the composition of any one of the previous claims to the host, wherein the modulating agent targets the one or more microorganisms resident in the host, and thereby modulates microbial diversity in the host.
  • the modulating agent may alter the levels of the one or more microorganisms resident in the host. In some embodiments of any of the above methods, the modulating agent may alter the function of the one or more microorganisms resident in the host. In some embodiments, the one or more microorganisms may be a bacterium and/or fungus. In some embodiments, the one or more microorganisms are required for host fitness. In some embodiments, the one or more microorganisms are required for host survival.
  • the delivering step may include providing the modulating agent at a dose and time sufficient to effect the one or more microorganisms, thereby modulating microbial diversity in the host.
  • the delivering step includes topical application of any of the previous compositions to a plant.
  • the delivering step includes providing the modulating agent through a genetically engineered plant.
  • the delivering step includes providing the modulating agent to the host as a comestible.
  • the delivering step includes providing a host carrying the modulating agent.
  • the host carrying the modulating agent can transmit the modulating agent to one or more additional hosts.
  • the composition may be effective to increase the host's sensitivity to a pesticidal agent (e.g., a pesticide listed in Table 12).
  • the host is resistant to the pesticidal agent prior to delivery of the modulating agent.
  • the pesticidal agent is an allelochemical agent.
  • the allelochemical agent is caffeine, soyacystatin N, monoterpenes, diterpene acids, or phenolic compounds.
  • the composition is effective to selectively kill the host.
  • the composition is effective to decrease host fitness.
  • the composition is effective to decrease the production of essential amino acids and/or vitamins in the host.
  • the host is an insect.
  • the host is a vector for an animal pathogen.
  • the vector is a mosquito, midge, louse, sandfly, tick, triatomine bug, tsetse fly, or flea.
  • the vector is a mosquito.
  • the vector is a tick.
  • the vector is a mite.
  • the vector is a louse.
  • the animal pathogen is a virus, a protozoan, a bacterium, a protist, or a nematoda.
  • the virus is one belonging to the group Togaviridae, Flaviviridae, Bunyaviridae, Rhabdoviridae, or Orbiviridae.
  • the bacterium is one belonging to the genus Yersinia, Francisella, Rickettsia, Orientia , or Borrelia .
  • the protozoan is one belonging to the genus Plasmodium, Trypanosoma, Leishmania , or Babesia .
  • the nematode is one belonging to the genus Brugia .
  • the composition is effective to prevent or decrease transmission of the pathogen to animals.
  • the composition is effective to prevent or decrease horizontal or vertical transmission of the pathogen between hosts.
  • the composition is effective to decrease host fitness, host development, or vectorial competence.
  • screening assays to identify modulating agent that modulate the fitness of a host includes the steps of (a) exposing a microorganism that can be resident in the host to one or more candidate modulating agents and (b) identifying a modulating agent that decreases the fitness of the host.
  • the modulating agent is a microorganism resident in the host.
  • the microorganism is a bacterium.
  • the bacterium when resident in the host, decreases host fitness.
  • the modulating agent affects an allelochemical-degrading microorganism.
  • the modulating agent is a phage, an antibiotic, or a test compound.
  • the antibiotic is timentin or azithromycin.
  • the host may be an invertebrate.
  • the invertebrate is an insect.
  • the insect is a mosquito.
  • the insect is a tick.
  • the insect is a mite.
  • the insect is a louse.
  • host fitness may be modulated by modulating the host microbiota.
  • mammals refers to livestock or farm animals and other mammalian veterinary animals.
  • bacteriocin refers to a peptide or polypeptide that possesses anti-microbial properties. Naturally occurring bacteriocins are produced by certain prokaryotes and act against organisms related to the producer strain, but not against the producer strain itself. Bacteriocins contemplated herein include, but are not limited to, naturally occurring bacteriocins, such as bacteriocins produced by bacteria, and derivatives thereof, such as engineered bacteriocins, recombinantly expressed bacteriocins, and chemically synthesized bacteriocins. In some instances, the bacteriocin is a functionally active variant of the bacteriocins described herein.
  • the variant of the bacteriocin has at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a bacteriocin described herein or a naturally occurring bacteriocin.
  • bacteriocyte refers to a specialized cell found in certain insects where intracellular bacteria reside with symbiotic bacterial properties.
  • the term “effective amount” refers to an amount of a modulating agent (e.g., a phage, lysin, bacteriocin, small molecule, or antibiotic) or composition including said agent sufficient to effect the recited result, e.g., to decrease or reduce the fitness of a host organism (e.g., insect, e.g., mosquito, tick, mite, louse); to reach a target level (e.g., a predetermined or threshold level) of a modulating agent concentration inside a target host; to reach a target level (e.g., a predetermined or threshold level) of a modulating agent concentration inside a target host gut; to reach a target level (e.g., a predetermined or threshold level) of a modulating agent concentration inside a target host bacteriocyte; to modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host.
  • a modulating agent e.g
  • fitness refers to the ability of a host organism to survive, and/or to produce surviving offspring.
  • Fitness of an organism may be measured by one or more parameters, including, but not limited to, life span, reproductive rate, mobility, body weight, and metabolic rate. Fitness may additionally be measured based on measures of activity (e.g., biting animals) or disease transmission (e.g., vector-vector transmission or vector-animal transmission).
  • gut refers to any portion of a host's gut, including, the foregut, midgut, or hindgut of the host.
  • the term “host” refers to an organism (e.g., insect, e.g., mosquito, louse, mite, or tick) carrying resident microorganisms (e.g., endogenous microorganisms, endosymbiotic microorganisms (e.g., primary or secondary endosymbionts), commensal organisms, and/or pathogenic microorganisms).
  • an organism e.g., insect, e.g., mosquito, louse, mite, or tick
  • resident microorganisms e.g., endogenous microorganisms, endosymbiotic microorganisms (e.g., primary or secondary endosymbionts), commensal organisms, and/or pathogenic microorganisms.
  • decreasing host fitness or “decreasing host fitness” refers to any disruption to host physiology, or any activity carried out by said host, as a consequence of administration of a modulating agent, including, but not limited to, any one or more of the following desired effects: (1) decreasing a population of a host by about 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 100% or more; (2) decreasing the reproductive rate of a host (e.g., insect, e.g., mosquito, tick, mite, louse) by about 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 100% or more; (3) decreasing the mobility of a host (e.g., insect, e.g., mosquito, tick, mite, louse) by about 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 100% or more; (4) decreasing the body weight of a host (e.
  • insects includes any organism belonging to the phylum Arthropoda and to the class Insecta or the class Arachnida, in any stage of development, i.e., immature and adult insects.
  • lysin also known as endolysin, autolysin, murein hydrolase, peptidoglycan hydrolase, or cell wall hydrolase refers to a hydrolytic enzyme that can lyse a bacterium by cleaving peptidoglycan in the cell wall of the bacterium.
  • Lysins contemplated herein include, but are not limited to, naturally occurring lysins, such as lysins produced by phages, lysins produced by bacteria, and derivatives thereof, such as engineered lysins, recombinantly expressed lysins, and chemically synthesized lysins.
  • a functionally active variant of the bacteriocin may have at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a synthetic, recombinant, or naturally derived bacteriocin, including any described herein.
  • microorganism refers to bacteria or fungi. Microorganisms may refer to microorganisms resident in a host organism (e.g., endogenous microorganisms, endosymbiotic microorganisms (e.g., primary or secondary endosymbionts)) or microorganisms exogenous to the host, including those that may act as modulating agents.
  • target microorganism refers to a microorganism that is resident in the host and impacted by a modulating agent, either directly or indirectly.
  • agent refers to an agent that is capable of altering the levels and/or functioning of microorganisms resident in a host organism (e.g., insect, e.g., mosquito, tick, mite, louse), and thereby modulate (e.g., decrease) the fitness of the host organism (e.g., insect, e.g., mosquito, tick, mite, louse).
  • a host organism e.g., insect, e.g., mosquito, tick, mite, louse
  • pesticide or “pesticidal agent” refers to a substance that can be used in the control of agricultural, environmental, or domestic/household pests, such as insects, fungi, bacteria, or viruses.
  • pesticide is understood to encompass naturally occurring or synthetic insecticides (larvicides or adulticides), insect growth regulators, acaricides (miticides), nematicides, ectoparasiticides, bactericides, fungicides, or herbicides (substance which can be used in agriculture to control or modify plant growth). Further examples of pesticides or pesticidal agents are listed in Table 12. In some instances, the pesticide is an allelochemical.
  • allelochemical or “allelochemical agent” is a substance produced by an organism that can effect a physiological function (e.g., the germination, growth, survival, or reproduction) of another organism (e.g., a host insect).
  • peptide encompasses any chain of naturally or non-naturally occurring amino acids (either D- or L-amino acids), regardless of length (e.g., at least, 2, 3, 4, 5, 6, 7, 10, 12, 14, 16, 18, 20, 25, 30, 40, 50, 100, or more amino acids), the presence or absence of post-translational modifications (e.g., glycosylation or phosphorylation), or the presence of, e.g., one or more non-amino acyl groups (for example, sugar, lipid, etc.) covalently linked to the peptide, and includes, for example, natural proteins, synthetic, or recombinant polypeptides and peptides, hybrid molecules, peptoids, and peptidomimetics.
  • amino acids either D- or L-amino acids
  • length e.g., at least, 2, 3, 4, 5, 6, 7, 10, 12, 14, 16, 18, 20, 25, 30, 40, 50, 100, or more amino acids
  • post-translational modifications e.g., glycosylation or phospho
  • percent identity between two sequences is determined by the BLAST 2.0 algorithm, which is described in Altschul et al., (1990) J. Mol. Biol. 215:403-410. Software for performing BLAST analyses is publicly available through the National Center for Biotechnology Information.
  • bacteriophage or “phage” refers to a virus that infects and replicates in bacteria. Bacteriophages replicate within bacteria following the injection of their genome into the cytoplasm and do so using either a lytic cycle, which results in bacterial cell lysis, or a lysogenic (non-lytic) cycle, which leaves the bacterial cell intact.
  • the phage may be a naturally occurring phage isolate, or an engineered phage, including vectors, or nucleic acids that encode either a partial phage genome (e.g., including at least all essential genes necessary to carry out the life cycle of the phage inside a host bacterium) or the full phage genome.
  • plant refers to whole plants, plant organs, plant tissues, seeds, plant cells, seeds, and progeny of the same.
  • Plant cells include, without limitation, cells from seeds, suspension cultures, embryos, meristematic regions, callus tissue, leaves, roots, shoots, gametophytes, sporophytes, pollen, and microspores.
  • Plant parts include differentiated and undifferentiated tissues including, but not limited to the following: roots, stems, shoots, leaves, pollen, seeds, tumor tissue, and various forms of cells and culture (e.g., single cells, protoplasts, embryos, and callus tissue).
  • the plant tissue may be in a plant or in a plant organ, tissue, or cell culture.
  • a plant may be genetically engineered to produce a heterologous protein or RNA, for example, of any of the modulating agents in the methods or compositions described herein.
  • vector refers to an insect that can carry or transmit an animal pathogen from a reservoir to an animal.
  • exemplary vectors include insects, such as those with piercing-sucking mouthparts, as found in Hemiptera and some Hymenoptera and Diptera such as mosquitoes, bees, wasps, midges, lice, tsetse fly, fleas and ants, as well as members of the Arachnidae such as ticks and mites.
  • FIG. 1A-1G show shows images of different antibiotic delivery systems.
  • First instar LSR-1 aphids were treated with different therapeutic solutions by delivery through plants ( FIG. 1A ), leaf coating ( FIG. 1B ), microinjection ( FIG. 1C ), and topical delivery ( FIG. 1D ).
  • FIG. 2A-2C show the delay in aphid development during rifampicin treatment in first instar LSR-1 aphids treated by delivery through plants with three different conditions: artificial diet without essential amino acids (AD only), artificial diet without essential amino acids with 100 ⁇ g/ml rifampicin (AD+Rif), and artificial diet with 100 ⁇ g/ml rifampicin and essential amino acids (AD+Rif+EAA).
  • FIG. 2B shows representative images from each treatment taken at 12 days. Scale bars 2.5 mm.
  • FIG. 2C shows area measurements from aphid bodies showing the drastic effect of rifampicin treatment. Adding back essential amino acids partially rescues development defects.
  • FIG. 4 is a graph showing that rifampicin treatment resulted in loss of reproduction in aphids.
  • First instar LSR-1 aphids were treated by delivery through plants with artificial diet without essential amino acids (AD only), artificial diet without essential amino acids with 100 ug/ml rifampicin (AD+Rif), and artificial diet with 100 ug/ml rifampicin and (AD+Rif+EAA) and the number of offspring produced each day after aphid reached adulthood was measured. Shown is the mean number of offspring produced per day after aphid reached adulthood ⁇ S.D.
  • FIG. 5 is a graph showing that rifampicin treatment eliminated endosymbiotic Buchnera .
  • Symbiont titer was determined for the different conditions at 7 days post-treatment.
  • DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA ⁇ SD of 3 aphids per group.
  • Statistically significant differences were determined using a one-way-ANOVA followed by Tukey's Post-Test; *, p ⁇ 0.05.
  • FIGS. 6A and 6B show that rifampicin treatment delivered through leaf coating delayed aphid development.
  • First instar eNASCO aphids were treated by coating leaves with 100 ⁇ l of two different solutions: solvent control (0.025% Silwet L-77), and 50 ⁇ g/ml rifampicin.
  • FIG. 6B is a graph showing area measurements from aphid bodies showing the drastic effect of rifampicin coated leaves on aphid size. Statistically significant differences were determined using a one-way-ANOVA followed by Tukey's Post-Test; *, p ⁇ 0.05.
  • FIG. 7 shows that rifampicin treatment delivered through leaf coating resulted in aphid death. Survival was monitored daily for eNASCO aphids treated by coating leaves with 100 ⁇ l of two different solutions: solvent control (Silwet L-77), and 50 ⁇ g/ml rifampicin. Treatment affects survival rate of aphids.
  • FIG. 8 shows that rifampicin treatment delivered through leaf coating eliminated endosymbiotic Buchnera .
  • Symbiont titer was determined for the two conditions at 6 days post-treatment.
  • DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA ⁇ SD.
  • Statistically significant differences were determined using a one-way-ANOVA followed by Tukey's Post-Test; *, p ⁇ 0.05.
  • FIG. 9 is a graph showing rifampicin treatment by microinjection eliminated endosymbiotic Buchnera .
  • Symbiont titer was determined 4 days post-injection with the indicated conditions.
  • Control sample is the solvent, 0.025% Silwet L-77 described before.
  • DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA ⁇ SD.
  • Statistically significant differences were determined using a one-way-ANOVA followed by Tukey's Post-Test; *, p ⁇ 0.05.
  • FIG. 10 is a graph showing that rifampicin treatment delivered through topical treatment eliminated endosymbiotic Buchnera .
  • Symbiont titer was determined 3 days post-spraying with: solvent (silwet L-77) or the rifampicin solution diluted in solvent.
  • DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA ⁇ SD.
  • Statistically significant differences were determined using a one-way-ANOVA followed by Tukey's Post-Test; *, p ⁇ 0.05.
  • FIG. 12 shows a graph demonstrating survival of 1 st and 2 nd instar LSR-1 aphids placed on leaves perfused with water plus food coloring or 50 ⁇ g/ml rifampicin in water plus food coloring. Number in parentheses represents the number of aphids in each group. Statistical significance was determined by Log-Rank Test.
  • FIG. 13 shows a graph demonstrating symbiont titer determined 8 days post-treatment with leaves perfused with water and food coloring or rifampicin plus water and food coloring.
  • DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA ⁇ SD. Number in box indicates the median of the experimental group.
  • FIG. 15 is a graph demonstrating survival of 1 st and 2 nd instar LSR-1 aphids placed on leaves perfused and treated with water plus food coloring or 100 ⁇ g/ml rifampicin in water plus food coloring. Number in parentheses represents the number of aphids in each group. A Log-Rank Test was performed and determined that there were no statistically significant differences between groups.
  • FIGS. 16A and 16B are graphs showing symbiont titer determined 6 ( 16 A) and 8 ( 16 B) days post-treatment in aphids feeding on leaves perfused and treated with water and food coloring or rifampicin plus water and food coloring.
  • DNA was extracted from aphids and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA ⁇ SD. Number in box indicates the median of the experimental group.
  • FIG. 18 is a graph showing 1st and 2nd instar LSR-1 aphids were treated with control solutions of a combination of treatments containing rifampicin. Number in parentheses represents the number of aphids in each group. A Log-Rank Test was performed and determined that there were no statistically significant differences between groups.
  • FIG. 19 is a graph showing symbiont titer determined at 7 days post-treatment with control or rifampicin solutions.
  • DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA ⁇ SD. Number in box indicates the median of the experimental group. Statistically significant differences were determined by t-test.
  • FIG. 20 is an image showing the chitosan delivery system. A. pisum aphids were treated with a therapeutic solution by delivery through leaf perfusion and through the plants as shown.
  • FIG. 21 is a panel of graphs showing that chitosan treatment resulted in delayed aphid development.
  • First and second instar A pisum aphids were treated by delivery through plants and leaf perfusion with the control solution (Water), and 300 ug/ml chitosan in water. Developmental stage was monitored throughout the experiment. Shown are the percent of aphids at each developmental stage (1st instar, 2nd instar, 3rd instar, 4th instar, 5th instar, or 5R which represents a reproducing 5th instar) per treatment group.
  • FIG. 22 is a graph showing there was a decrease in insect survival upon treatment with chitosan.
  • First and second instar A pisum aphids were treated by delivery through plants and leaf perfusion with just water or chitosan solution and survival was monitored daily over the course of the experiment.
  • Number in parentheses represents the total number of aphids in the treatment group.
  • FIG. 23 is a graph showing treatment with chitosan reduced endosymbiotic Buchnera .
  • First and second instar A pisum aphids were treated by delivery through plants and leaf perfusion with water or 300 ug/ml chitosan in water.
  • DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA ⁇ SD of 6 aphids/group. The median value for each group is shown in box.
  • FIG. 24 is a panel of graphs showing treatment with nisin resulted in delayed aphid development.
  • FIG. 25 is a graph showing there was a dose dependent decrease in insect survival upon treatment with nisin.
  • First and second instar LSR-1 A pisum aphids were treated with water (control) or 1.6 or 7 mg/ml nisin via delivery by leaf injection and through the plant and survival was monitored over time. Number in parentheses indicates the number of aphids/group. Statistically significant differences were determined by Log Rank (Mantel-Cox) test.
  • FIG. 26 is a graph showing treatment with nisin reduced endosymbiotic Buchnera .
  • First and second instar LSR-1 A pisum aphids were treated with water (control) or 1.6 mg/ml nisin via delivery by leaf injection and through the plant and DNA was extracted from select aphids at eight days post-treatment and used for qPCR to determine Buchnera copy numbers. Shown are the mean Buchnera /aphid ratios for each treatment+/ ⁇ SEM. Number in the box above each experimental group indicates the median value for that group. Each data point represents a single aphid.
  • FIG. 27 is a panel of graphs showing treatment with levulinic acid resulted in delayed aphid development.
  • FIG. 28 is a graph showing there was a decrease in insect survival upon treatment with levulinic acid.
  • FIG. 29 is a panel of graphs showing treatment with levulinic acid reduced endosymbiotic Buchnera .
  • First and second instar eNASCO A pisum aphids were treated with water (control) or 0.03 or 0.3% levulinic acid via delivery by leaf injection and through the plant and DNA was extracted from select aphids at seven and eleven days post-treatment and used for qPCR to determine Buchnear copy numbers. Shown are the mean Buchnera /aphid ratios for each treatment+/ ⁇ SEM. Statistically significant differences were determined by One-way ANOVA and Dunnett's Multiple Comparison Test; *, p ⁇ 0.05. Each data point represents a single aphid.
  • FIGS. 30A and 30B show graphs demonstrating that gossypol treatment resulted in delayed aphid development.
  • First and second instar A pisum aphids were treated by delivery through plants with artificial diet without essential amino acids (AD only), and artificial diet without essential amino acids with different concentrations of gossypol (0.05%, 0.25% and 0.5%). Developmental stage was monitored throughout the experiment.
  • FIG. 30A is a series of graphs showing the mean number of aphids at each developmental stage (1st instar, 2nd instar, 3rd instar, 4th instar, 5th instar, or 5R which represents a reproducing 5th instar) per treatment group. At the indicated time, aphids were imaged and their size was determined using Image J.
  • FIG. 30B is a graph showing the mean aphid area ⁇ SD of artificial diet treated (Control) or gossypol treated aphids. Statistical significance was determined using a One-Way ANOVA followed by Tukey's post-test. *, p ⁇ 0.05. **, p ⁇ 0.01.
  • FIG. 31 is a graph showing a dose-dependent decrease in survival of aphids upon treatment with the allelochemical gossypol.
  • FIGS. 32A and 32B are two graphs showing that treatment with 0.25% gossypol resulted in decreased fecundity.
  • First and second instar A pisum aphids were treated by delivery through plants with artificial diet without essential amino acids (AD5-2 no EAA), or artificial diet without essential amino acids with 0.25% gossypol acetic acid (AD5-2 no EAA+0.25% gossypol), and fecundity was determined throughout the time course of the experiment.
  • FIG. 32A shows the mean day ⁇ SD at which aphids began producing offspring was measured and gossypol treatment delayed production of offspring.
  • FIG. 32B shows the mean number of offspring produced after the aphid began a reproducing adult ⁇ SD was measured and gossypol treatment results in decreased number of offspring produced. Each data point represents one aphid.
  • FIG. 33 is a graph showing that treatment with different concentrations of gossypol reduced endosymbiotic Buchnera .
  • Control artificial diet without essential amino acids
  • 0.05% gossypol 0.5%, 0.25%, or 0.05% gossypol.
  • DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA ⁇ SD of 2-6 aphids/group. Statistically significant differences were determined by Unpaired T-test; *, p ⁇ 0.05.
  • FIG. 34 is a graph showing that microinjection of gossypol resulted in decreased Buchnera levels in aphids.
  • AD essential amino acids
  • gossypol 0.05%)
  • Three days after injection DNA was extracted from aphids and Buchnera levels were assessed by qPCR. Shown are the mean ratios of Buchnera /aphid DNA ⁇ SD. Each data point represents one aphid.
  • FIG. 35 is a panel of graphs showing Trans-cinnemaldehyde treatment resulted in delayed aphid development.
  • FIG. 36 is a graph showing there was a dose-dependent decrease in survival upon treatment the natural antimicrobial trans-cinnemaldehyde.
  • FIG. 37 is a graph showing treatment with different concentrations of trans-cinnemaldehyde reduced endosymbiotic Buchnera .
  • First and second instar A pisum aphids were treated by delivery through plants with water and water with different concentrations of trans-cinnemaldehyde (0.05%, 0.5%, and 5%).
  • DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA ⁇ SD of 2-11 aphids/group. The median of each treatment group is shown in the box above the data points. Statistically significant differences were determined by Unpaired T-test; *, p ⁇ 0.05. There was a statistically significant difference between the water control and the 0.5% trans-cinnemaldehyde group.
  • FIG. 38 is a panel of graphs showing treatment with scorpion peptide Uy192 resulted in delayed aphid development.
  • First and second instar A pisum aphids were treated by delivery through plants and leaf perfusion with the control solution (water), and 100 ug/ml Uy192 in water. a) developmental stage was monitored throughout the experiment. Shown are the percent of aphids at each developmental stage (1st instar, 2nd instar, 3rd instar, 4th instar, 5th instar, or 5R which represents a reproducing 5th instar) per treatment group.
  • FIG. 39 is a graph showing there was a decrease in insect survival upon treatment with the scorpion AMP Uy192.
  • First and second instar A pisum aphids were treated by delivery through plants and leaf perfusion with just water or Uy192 solution and survival was monitored daily over the course of the experiment. Number in parentheses represents the total number of aphids in the treatment group.
  • FIG. 40 is a graph showing treatment with Uy192 reduced endosymbiotic Buchnera .
  • First and second instar A pisum aphids were treated by delivery through plants and leaf perfusion with water or 100 ug/ml Uy192 in water, at 8 days post-treatment, DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA ⁇ SD of 2-6 aphids/group. The median value for each group is shown in box.
  • FIG. 41 is a graph showing a decrease in survival in aphids microinjected with scorpion peptides D10 and D3.
  • LSR-1 A pisum aphids were microinjected with water (control) or with 100 ng of either scorpion peptide D3 or D10. After injection, aphids were released to fava bean leaves and survival was monitored throughout the course of the experiment. The number in parentheses indicates the number of aphids in each experimental treatment group.
  • FIG. 42 is a graph showing a decrease in endosymbiont titers upon injection with scorpion peptides D3 and D10.
  • FIG. 43 is a graph showing a decrease in insect survival upon treatment with a cocktail of scorpion AMPs.
  • First and second instar eNASCO aphids were treated by delivery through leaf perfusion and through plants with a cocktail of scorpion peptides (40 ⁇ g/ml of each of Uy17, D3, UyCt3, and D10) and survival was monitored over the course of the experiment.
  • the number in parentheses represents the number of aphids in each treatment group.
  • FIG. 44 is a panel of graphs showing treatment with scorpion peptide fused to a cell penetrating peptide resulted in delayed aphid development.
  • FIG. 45 is a graph showing treatment of aphids with a scorpion peptide fused to a cell penetrating peptide increased mortality.
  • FIG. 46 is a graph showing treatment with Uy192+CPP+FAM reduced endosymbiotic Buchnera .
  • First instar LSR-1 A pisum aphids were treated with water or 100 ⁇ g/ml Uy192+CPP+FAM (peptide) in water delivered by leaf injection and through the plant. DNA was extracted from select aphids at five days post-treatment and used for qPCR to determine Buchnera copy numbers. Shown are the mean Buchnera /aphid ratios for each treatment+/ ⁇ SEM. Number in the box above each experimental group indicates the median value for that group. Each data point represents a single aphid. Statistically significant differences were determined by Student's T-test; ****, p ⁇ 0.0001.
  • FIG. 47 is a panel of images showing Uy192+CPP+FAM penetrated bacteriocyte membranes. Bacteriocytes were dissected from the aphids and incubated with 250 ug/ml of the Uy192+CPP+FAM peptide for 30 min. Upon washing and imaging, the Uy192+CPP+FAM can be seen at high quantities inside the bacteriocytes.
  • FIG. 48A and FIG. 48B are a panel of graphs showing Pantothenol treatment delayed aphid development.
  • First instar and second eNASCO aphids were treated by delivery through plants with three different conditions: artificial diet without essential amino acids (AD no EAA), artificial diet without essential amino acids with 10 uM pantothenol (10 uM pantothenol), and artificial diet without essential amino acids with 100 uM pantothenol (100 uM pantothenol), artificial diet without essential amino acids with 100 uM pantothenol, and artificial diet without essential amino acids with 10 uM pantothenol.
  • FIG. 48A shows developmental stage monitored over time for each condition.
  • FIG. 48B shows relative area measurements from aphid bodies showing the drastic effect of pantothenol treatment.
  • FIG. 49 is a graph showing that treatment with pantothenol increased aphid mortality. Survival was monitored daily for eNASCO aphids treated by delivery through plants with artificial diet without essential amino acids, or artificial diet without essential amino acids containing 10 or 100 uM pantothenol. Number in parentheses represents number of aphids in each group.
  • FIGS. 50A, 50B, and 50C are a panel of graphs showing Pantothenol treatment resulted in loss of reproduction.
  • First and second instar eNASCO aphids were treated by delivery through plants with artificial diet without essential amino acids or with artificial diet without essential amino acids with 10 or 100 uM pantothenol.
  • FIG. 50A shows the fraction of aphids surviving to maturity and reproducing.
  • FIG. 50B shows the mean day aphids in each group began reproducing. Shown is the mean day an aphid began reproducing ⁇ SD.
  • FIG. 50C shows the mean number of offspring produced per day after an aphid began reproducing. Shown are the mean number of offspring/day ⁇ SD.
  • FIG. 51 is a graph showing Pantothenol treatment did not affect endosymbiotic Buchnera .
  • Symbiont titer was determined for the different conditions at 8 days post-treatment.
  • DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA ⁇ SD of 6 aphids per group.
  • FIG. 52 is a panel of graphs showing Pantothenol treatment delivered through plants did not affect aphid development.
  • FIGS. 54A and 54B are a panel of graphs showing treatment with a cocktail of amino acid analogs delayed aphid development.
  • First instar LSR-1 aphids were treated by delivery through leaf perfusion and through plants with water or a cocktail of amino acid analogs in water (AA cocktail).
  • FIG. 54A shows the developmental stage measured over time for each condition. Shown are the percentage of living aphids at each developmental stage.
  • FIG. 54B shows the area measurements from aphid bodies showing the drastic effect of treatment with an amino acid analog cocktail (AA cocktail). Statistically significant differences were determined using a Student's T-test; ****, p ⁇ 0.0001.
  • FIG. 55 is a graph showing treatment with a cocktail of amino acid analogs eliminated endosymbiotic Buchnera .
  • Symbiont titer was determined for the different conditions at 6 days post-treatment.
  • DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown are the mean ratios of Buchnera DNA to aphid DNA ⁇ SD of 19-20 aphids per group. Each data point represents an individual aphid. Statistically significant differences were determined using a Student's T-test; *, p ⁇ 0.05.
  • FIGS. 56A and 56B is a panel of graphs showing treatment with a combination of three agents delayed aphid development.
  • First instar LSR-1 aphids were treated by delivery through leaf perfusion and through plants with water or a combination of three agents in water (Pep-Rif-Chitosan).
  • FIG. 56A shows the developmental stage measured over time for each condition. Shown are the percentage of living aphids at each developmental stage.
  • FIG. 56B shows the area measurements from aphid bodies showing the drastic effect of treatment with a combination of three treatments (Pep-Rif-Chitosan).
  • Statistically significant differences were determined using a Student's T-test; ****, p ⁇ 0.0001.
  • FIG. 57 is a graph showing treatment with a combination of a peptide, antibiotic, and natural antimicrobial agent increased aphid mortality.
  • LSR-1 aphids were treated with water or a combination of three treatments (Pep-Rif-Chitosan) and survival was monitored daily after treatment.
  • FIG. 58 is a graph showing treatment with a combination of a peptide, antibiotic, and natural antimicrobial agent eliminated endosymbiotic Buchnera .
  • Symbiont titer was determined for the different conditions at 6 days post-treatment.
  • DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown are the mean ratios of Buchnera DNA to aphid DNA ⁇ SD of 20-21 aphids per group. Each data point represents an individual aphid.
  • FIGS. 59A and 59B are a panel of images showing ciprofloxacin coated and penetrated corn kernels. Corn kernels were soaked in water (no antibiotic) or the indicated concentration of ciprofloxacin in water and whole kernels or kernel were tested to see whether they can inhibit the growth of E. coli DH5 ⁇ .
  • FIG. 59A shows bacterial growth in the presence of a corn kernel soaked in water without antibiotics and
  • FIG. 59B shows the inhibition of bacterial growth when whole or half corn kernels that have been soaked in antibiotics are placed on a plate spread with E. coli.
  • FIG. 60 is a graph showing that adult S. zeamais weevils were treated with ciprofloxacin (250 ug/ml or 2.5 mg/ml) or mock treated with water. After 18 days of treatment, genomic DNA was isolated from weevils and the amount of Sitophilus primary endosymbiont was determined by qPCR. Shown is the mean ⁇ SEM of each group. Each data point represents one weevil. The median of each group is listed above the dataset.
  • FIGS. 61A and 61B are graphs showing weevil development after treatment with ciprofloxacin.
  • FIG. 61A shows individual corn kernels cut open 25 days after adults were removed from one replicate each of the initial corn kernels soaked/coated with water (control) or ciprofloxacin (250 ug/ml or 2.5 mg/ml) and examined for the presence of larvae, pupae, or almost fully developed (adult) weevils. Shown is the percent of each life stage found in kernels from each treatment group. The total number of offspring found in the kernels from each treatment group is indicated above each dataset.
  • FIG. 61A shows individual corn kernels cut open 25 days after adults were removed from one replicate each of the initial corn kernels soaked/coated with water (control) or ciprofloxacin (250 ug/ml or 2.5 mg/ml) and examined for the presence of larvae, pupae, or almost fully developed (adult) weevils. Shown is the percent of each life stage found
  • 61B shows genomic DNA isolated from offspring dissected from corn kernels from the control (water) and 2.5 mg/ml ciprofloxacin treatment groups and qPCR was done to measure the amount of Sitophilus primary endosymbiont present. Shown are the mean ⁇ SD for each group. Statistically significant differences were determined by unpaired t-test; ***, p ⁇ 0.001.
  • FIGS. 62A and 62B are graphs showing the two remaining replicates of corn kernels mock treated (water) or treated with 250 ug/ml or 2.5 mg/ml ciprofloxacin monitored for the emergence of offspring after mating pairs were removed (at 7 days post-treatment).
  • FIG. 62A shows the mean number of newly emerged weevils over time ⁇ SD for each treatment group.
  • FIG. 62B shows the mean number ⁇ SEM of emerged weevils for each treatment group at 43 days after mating pairs were removed.
  • FIG. 63 is a panel of graphs showing rifampicin and doxycycline treatment resulted in mite mortality. Survival was monitored daily for untreated two-spotted spider mites and mites treated with 250 ⁇ g/ml rifampicin and 500 ⁇ g/ml doxycycline in 0.025% Silwet L-77.
  • FIG. 64 is a panel of graphs showing the results of a Seahorse flux assay for bacterial respiration.
  • Bacteria were grown to logarithmic phase and loaded into Seahorse XFe96 plates for temporal measurements of oxygen consumption rate (OCR) and extracellular acidification rate (ECAR) as described in methods. Treatments were injected into the wells after approximately 20 minutes and bacteria were monitored to detect changes in growth.
  • OCR oxygen consumption rate
  • ECAR extracellular acidification rate
  • Treatments were injected into the wells after approximately 20 minutes and bacteria were monitored to detect changes in growth.
  • Rifampicin 100 ⁇ g/mL
  • Chloramphenicol 25 ⁇ g/mL
  • Phages (T7 for E. coli and ⁇ SmVL-C1 for S. marcescens ) were lysates diluted either 1:2 or 1:100 in SM Buffer.
  • the markers on each line are solely provided as indicators of the condition to which each line corresponds, and are not indicative
  • FIG. 65 is a graph showing phage against S. marcescens reduced fly mortality. Flies that were pricked with S. marcescens were all dead within a day, whereas a sizeable portion of the flies that were pricked with both S. marcescens and the phage survived for five days after the treatment. Almost all of the control flies which were not treated in anyway survived till the end of the experiment. Log-rank test was used to compare the curves for statistical significance, asterisk denotes p ⁇ 0.0001.
  • compositions useful for animal health e.g., for altering a level, activity, or metabolism of one or more microorganisms resident in a host insect (e.g., arthropod, e.g., insect, e.g., an animal pathogen vector, e.g., mosquito, mite, louse, or tick), the alteration resulting in a decrease in the fitness of the host.
  • a host insect e.g., arthropod, e.g., insect, e.g., an animal pathogen vector, e.g., mosquito, mite, louse, or tick
  • the invention features a composition that includes a modulating agent (e.g., phage, peptide, small molecule, antibiotic, or combinations thereof) that can alter the host's microbiota in a manner that is detrimental to the host.
  • a modulating agent e.g., phage, peptide, small molecule, antibiotic, or combinations thereof
  • compositions described herein are based in part on the examples provided herein, which illustrate how modulating agents, for example antibiotics (e.g., oxytetracycline, doxycycline, or a combination thereof) can be used to target symbiotic microorganisms in a host (e.g., endosymbionts in insect vectors of animal pathogens, e.g., endosymbiotic Wolbachia in mosquitos or Rickettsia in ticks) to decrease the fitness of the host by altering the level, activity, or metabolism of the microorganisms within the hosts.
  • antibiotics e.g., oxytetracycline, doxycycline, or a combination thereof
  • target symbiotic microorganisms in a host e.g., endosymbionts in insect vectors of animal pathogens, e.g., endosymbiotic Wolbachia in mosquitos or Rickettsia in
  • the present disclosure describes a variety of different approaches for the use of agents that alter a level, activity, or metabolism of one or more microorganisms resident in a host (e.g., a vector of an animal pathogen, e.g., a mosquito, mite, louse or a tick) the alteration resulting in a decrease in the host's fitness.
  • a host e.g., a vector of an animal pathogen, e.g., a mosquito, mite, louse or a tick
  • compositions provided herein may be used with any insect host that is considered a vector for a pathogen that is capable of causing disease in animals.
  • the insect host may include, but is not limited to those with piercing-sucking mouthparts, as found in Hemiptera and some Hymenoptera and Diptera such as mosquitoes, bees, wasps, midges, lice, tsetse fly, fleas and ants, as well as members of the Arachnidae such as ticks and mites; order, class or family of Acarina (ticks and mites) e.g.
  • the insect is a blood-sucking insect from the order Diptera (e.g., suborder Nematocera, e.g., family Colicidae).
  • the insect is from the subfamilies Culicinae, Corethrinae, Ceratopogonidae, or Simuliidae.
  • the insect is of a Culex spp., Theobaldia spp., Aedes spp., Anopheles spp., Aedes spp., Forciponiyia spp., Culicoides spp., or Helea spp.
  • the insect is a mosquito. In certain instances, the insect is a tick. In certain instances, the insect is a mite. In certain instances, the insect is a biting louse.
  • the methods and compositions provided herein may be used to decrease the fitness of any of the hosts described herein.
  • the decrease in fitness may arise from any alterations in microorganisms resident in the host, wherein the alterations are a consequence of administration of a modulating agent and have detrimental effects on the host.
  • the decrease in host fitness may manifest as a deterioration or decline in the physiology of the host (e.g., reduced health or survival) as a consequence of administration of a modulating agent.
  • the fitness of an organism may be measured by one or more parameters, including, but not limited to, reproductive rate, lifespan, mobility, fecundity, body weight, metabolic rate or activity, or survival in comparison to a host organism to which the modulating agent has not been administered.
  • the methods or compositions provided herein may be effective to decrease the overall health of the host or to decrease the overall survival of the host.
  • the decreased survival of the host is about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or greater than 100% greater relative to a reference level (e.g., a level found in a host that does not receive a modulating agent).
  • a reference level e.g., a level found in a host that does not receive a modulating agent.
  • the methods and compositions are effective to decrease host reproduction (e.g., reproductive rate) in comparison to a host organism to which the modulating agent has not been administered.
  • the methods and compositions are effective to decrease other physiological parameters, such as mobility, body weight, life span, fecundity, or metabolic rate, by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or greater than 100% relative to a reference level (e.g., a level found in a host that does not receive a modulating agent).
  • a reference level e.g., a level found in a host that does not receive a modulating agent.
  • the decrease in host fitness may manifest as a decrease in the production of one or more nutrients in the host (e.g., vitamins, carbohydrates, amino acids, or polypeptides).
  • the methods or compositions provided herein may be effective to decrease the production of nutrients in the host (e.g., vitamins, carbohydrates, amino acids, or polypeptides) by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or greater than 100% relative to a reference level (e.g., a level found in a host that does not receive a modulating agent).
  • the methods or compositions provided herein may decrease nutrients in the host by decreasing the production of nutrients by one or more microorganisms (e.g., endosymbiont) in the host in comparison to a host organism to which the modulating agent has not been administered.
  • microorganisms e.g., endosymbiont
  • the decrease in host fitness may manifest as an increase in the host's sensitivity to a pesticidal agent (e.g., a pesticide listed in Table 12) and/or a decrease in the host's resistance to a pesticidal agent (e.g., a pesticide listed in Table 12) in comparison to a host organism to which the modulating agent has not been administered.
  • a pesticidal agent e.g., a pesticide listed in Table 12
  • a decrease in the host's resistance to a pesticidal agent e.g., a pesticide listed in Table 12
  • the methods or compositions provided herein may be effective to increase the host's sensitivity to a pesticidal agent (e.g., a pesticide listed in Table 12) by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or greater than 100% relative to a reference level (e.g., a level found in a host that does not receive a modulating agent).
  • a pesticidal agent e.g., a pesticide listed in Table 12
  • the pesticidal agent may be any pesticidal agent known in the art, including insecticidal agents.
  • the methods or compositions provided herein may increase the host's sensitivity to a pesticidal agent (e.g., a pesticide listed in Table 12) by decreasing the host's ability to metabolize or degrade the pesticidal agent into usable substrates in comparison to a host organism to which the modulating agent has not been administered.
  • a pesticidal agent e.g., a pesticide listed in Table 12
  • the decrease in host fitness may manifest as an increase in the host's sensitivity to an allelochemical agent and/or a decrease in the host's resistance to an allelochemical agent in comparison to a host organism to which the modulating agent has not been administered.
  • the methods or compositions provided herein may be effective to decrease the host's resistance to an allelochemical agent by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or greater than 100% relative to a reference level (e.g., a level found in a host that does not receive a modulating agent).
  • the allelochemical agent is caffeine, soyacystatin N, monoterpenes, diterpene acids, or phenolic compounds.
  • the methods or compositions provided herein may increase the host's sensitivity to an allelochemical agent by decreasing the host's ability to metabolize or degrade the allelochemical agent into usable substrates in comparison to a host organism to which the modulating agent has not been administered.
  • the methods or compositions provided herein may be effective to decease the host's resistance to parasites or pathogens (e.g., fungal, bacterial, or viral pathogens or parasites) in comparison to a host organism to which the modulating agent has not been administered.
  • the methods or compositions provided herein may be effective to decrease the host's resistance to a pathogen or parasite (e.g., fungal, bacterial, or viral pathogens; or parasitic mites) by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or greater than 100% relative to a reference level (e.g., a level found in a host that does not receive a modulating agent).
  • a reference level e.g., a level found in a host that does not receive a modulating agent.
  • the decrease in host fitness may manifest as other fitness disadvantages, such as decreased tolerance to certain environmental factors (e.g., a high or low temperature tolerance), decreased ability to survive in certain habitats, or a decreased ability to sustain a certain diet in comparison to a host organism to which the modulating agent has not been administered.
  • the methods or compositions provided herein may be effective to decrease host fitness in any plurality of ways described herein.
  • the modulating agent may decrease host fitness in any number of host classes, orders, families, genera, or species (e.g., 1 host species, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 150, 200, 200, 250, 500, or more host species).
  • the modulating agent acts on a single host class, order, family, genus, or species.
  • Host fitness may be evaluated using any standard methods in the art. In some instances, host fitness may be evaluated by assessing an individual host. Alternatively, host fitness may be evaluated by assessing a host population. For example, a decrease in host fitness may manifest as a decrease in successful competition against other insects, thereby leading to a decrease in the size of the host population.
  • the modulating agents provided herein are effective to reduce the spread of vector-borne diseases.
  • the modulating agent may be delivered to the insects using any of the formulations and delivery methods described herein, in an amount and for a duration effective to reduce transmission of the disease, e.g., reduce vertical or horizontal transmission between vectors and/or reduce transmission to animals.
  • the modulating agent described herein may reduce vertical or horizontal transmission of a vector-borne pathogen by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or more in comparison to a host organism to which the modulating agent has not been administered.
  • the modulating agent described herein may reduce vectorial competence of an insect vector by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or more in comparison to a host organism to which the modulating agent has not been administered.
  • Non-limiting examples of diseases that may be controlled by the compositions and methods provided herein include diseases caused by Togaviridae viruses (e.g., Chikungunya, Ross River fever, Mayaro, Onyon-nyong fever, Sindbis fever, Eastern equine enchephalomyeltis, Wesetern equine encephalomyelitis, deciualan equine encephalomyelitis, or Barmah forest); diseases caused by Flavivirdae viruses (e.g., Dengue fever, Yellow fever, Kyasanur Forest disease, Omsk haemorrhagic fever, Japaenese encephalitis, Murray Valley encephalitis, Rocio, St.
  • Togaviridae viruses e.g., Chikungunya, Ross River fever, Mayaro, Onyon-nyong fever, Sindbis fever, Eastern equine enchephalomyeltis, Wesetern equine ence
  • microorganisms targeted by the modulating agent described herein may include any microorganism resident in or on the host, including, but not limited to, any bacteria and/or fungi described herein.
  • Microorganisms resident in the host may include, for example, symbiotic (e.g., endosymbiotic microorganisms that provide beneficial nutrients or enzymes to the host), commensal, pathogenic, or parasitic microorganisms.
  • An endosymbiotic microorganism may be a primary endosymbiont or a secondary endosymbiont.
  • a symbiotic microorganism e.g., bacteria or fungi
  • Microorganisms resident in the host may be acquired by any mode of transmission, including vertical, horizontal, or multiple origins of transmission.
  • Exemplary bacteria that may be targeted in accordance with the methods and compositions provided herein, include, but are not limited to, Xenorhabdus spp, Photorhabdus spp, Candidatus spp, Buchnera spp, Blattabacterium spp, Baumania spp, Wigglesworthia spp, Wolbachia spp, Rickettsia spp, Orientia spp, Sodalis spp, Burkholderia spp, Cupriavidus spp, Frankia spp, Snirhizobium spp, Streptococcus spp, Wolinella spp, Xylella spp, Erwinia spp, Agrobacterium spp, Bacillus spp, Paenibacillus spp, Streptomyces spp, Micrococcus spp, Corynebacterium spp, Acetobacter spp, Cyanobacteri
  • Non-limiting examples of bacteria that may be targeted by the methods and compositions provided herein are shown in Table 1.
  • the 16S rRNA sequence of the bacteria targeted by the modulating agent has at least 50%, 60%, 70%, 80%, 85%, 90%, 95%, 97%, 99%, 99.9%, or 100% identity with a sequence listed in
  • CAGGCTTAACACATGCAAGTCG AACGGTAACATGAGTGCTTGCA CTTGATGACGAGTGGCGGACG GGTGAGTAAAGTATGGGGATCT GCCGAATGGAGGGACAACA GTTGGAAACGACTGCTAATACC GCATAAAGTTGAGAGACCAAAG CATGGGACCTTCGGGCCATGC GCCATTTGATGAACCCATATGG GATTAGCTAGTTGGTAGGGTAA TGGCTTACCAAGGCGACGATCT CTAGCTGGTCTGAGAGGATGA CCAGCCACACTGGAACTGAGA CACGGTCCAGACTCCTACGGG AGGCAGCAGTGGGGAATATTG CACAATGGGGGAAACCCTGAT GCAGCCATGCCGCGTGTATGA AGAAGGCCTTCGGGTTGTAAAG TACTTTCGGTGATGAGGAAGGT GGTGTATCTAATAGGTGCATCA ATTGACGTTAATTACAGAAGAA GCACCGGCTAACTCCGTGCCA GCAGCCGCGGTAATACGGAGG GTGCGAGCGTTA
  • a mosquito e.g., Aedes spp. or Anopheles spp. harbors symbiotic bacteria that modulate the mosquito's immune response and influence vectorial competence to pathogens.
  • the modulating agent described herein may be useful in targeting bacteria resident in the mosquito, including, but not limited to, EspZ, Serratia spp (e.g., Serratia marcescens ), Enterbacterioaceae spp., Enterobacter spp. (e.g., Enterobacter cloacae, Enterobacter amnigenus, Enterobacter ludwigii ), Proteus spp., Acinetobacter spp., Wigglesworthia spp.
  • EspZ EspZ
  • Serratia spp e.g., Serratia marcescens
  • Enterbacterioaceae spp. Enterobacter spp.
  • Enterobacter spp. e.g., Enterobacter clo
  • Xanthomonas spp. e.g., Xanthomonas maltophilia
  • Pseudomonas spp. e.g., Pseudomonas aeruginosa, Pseudomonas stutzeri, Pseudomonas rhodesiae
  • Escherichia spp. e.g., Escherchia coli
  • Cedecea spp. e.g., Cedecea lapagei
  • Ewingella spp. e.g., Ewingella americana
  • Wolbachia spp. e.g., Wolbachia —wMel, Wolbachial —wAlbB, Wolbachia —wMelPop, Wolbachia —wMelPop-CLA.
  • the modulating agent may target a single bacterial species.
  • the modulating agent may target at least about any of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 150, 200, 250, 500, or more distinct bacterial species.
  • the modulating agent may target any one of about 1 to about 5, about 5 to about 10, about 10 to about 20, about 20 to about 50, about 50 to about 100, about 100 to about 200, about 200 to about 500, about 10 to about 50, about 5 to about 20, or about 10 to about 100 distinct bacterial species.
  • the modulating agent may target at least about any of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, or more phyla, classes, orders, families, or genera of bacteria.
  • the modulating agent may increase a population of one or more bacteria (e.g., pathogenic bacteria, toxin-producing bacteria) by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% or more in the host in comparison to a host organism to which the modulating agent has not been administered.
  • bacteria e.g., pathogenic bacteria, toxin-producing bacteria
  • the modulating agent may reduce the population of one or more bacteria (e.g., symbiotic bacteria, pesticide-degrading bacteria, e.g., a bacterium that degrades any one of the pesticides listed in Table 12) by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or more in the host in comparison to a host organism to which the modulating agent has not been administered.
  • the modulating agent may eradicate the population of a bacterium (e.g., symbiotic bacteria, pesticide-degrading bacteria, e.g., a bacterium that degrades any one of the pesticides listed in Table 12) in the host.
  • the modulating agent may increase the level of one or more pathogenic bacteria by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% or more in the host and/or decreases the level of one or more symbiotic bacteria by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or more in the host in comparison to a host organism to which the modulating agent has not been administered.
  • the modulating agent may alter the bacterial diversity and/or bacterial composition of the host. In some instances, the modulating agent may increase the bacterial diversity in the host relative to a starting diversity by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or more in comparison to a host organism to which the modulating agent has not been administered. In some instances, the modulating agent may decrease the bacterial diversity in the host relative to a starting diversity by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or more in comparison to a host organism to which the modulating agent has not been administered.
  • the modulating agent may alter the function, activity, growth, and/or division of one or more bacterial cells.
  • the modulating agent may alter the expression of one or genes in the bacteria.
  • the modulating agent may alter the function of one or more proteins in the bacteria.
  • the modulating agent may alter the function of one or more cellular structures (e.g., the cell wall, the outer or inner membrane) in the bacteria.
  • the modulating agent may kill (e.g., lyse) the bacteria.
  • the target bacterium may reside in one or more parts of the insect. Further, the target bacteria may be intracellular or extracellular. In some instances, the bacteria reside in or on one or more parts of the host gut, including, e.g., the foregut, midgut, and/or hindgut. In some instances, the bacteria reside as an intracellular bacteria within a cell of the host insect. In some instances, the bacteria reside in a bacteriocyte of the host insect.
  • Changes to the populations of bacteria in the host may be determined by any methods known in the art, such as microarray, polymerase chain reaction (PCR), real-time PCR, flow cytometry, fluorescence microscopy, transmission electron microscopy, fluorescence in situ hybridization (e.g., FISH), spectrophotometry, matrix-assisted laser desorption ionization-mass spectrometry (MALDI-MS), and DNA sequencing.
  • a sample of the host treated with a modulating agent is sequenced (e.g., by metagenomics sequencing of 16S rRNA or rDNA) to determine the microbiome of the host after delivery or administration of the modulating agent.
  • a sample of a host that did not receive the modulating agent is also sequenced to provide a reference.
  • Exemplary fungi that may be targeted in accordance with the methods and compositions provided herein, include, but are not limited to Amylostereum areolatum, Epichloe spp, Pichia pinus, Hansenula capsulate, Daldinia decipien, Ceratocytis spp, Ophiostoma spp, and Attamyces bromatificus .
  • Non-limiting examples of yeast and yeast-like symbionts found in insects include Candida, Metschnikowia, Debaromyces, Scheffersomyces shehatae and Scheffersomyces stipites, Starmerella, Pichia, Trichosporon, Cryptococcus, Pseudozyma , and yeast-like symbionts from the subphylum Pezizomycotina (e.g., Symbiotaphrina bucneri and Symbiotaphrina kochii ).
  • yeast that may be targeted by the methods and compositions herein are listed in Table 2.
  • Harpium inquisitor Coleoptera Cerambycidae Mycetomes ( Candida rhagii ) Harpium mordax Coleoptera: Cerambycidae Cecae around midgut ( Candida tenuis ) H.
  • cerambyciformis Leptura sanguinolenta Coleoptera Cerambycidae Cecae around midgut ( Candida sp.)
  • Rhagium bifasciatum Coleoptera Cerambycidae Cecae around midgut ( Candida tenuis )
  • Rhagium inquisitor Coleoptera Cerambycidae Cecae around midgut ( Candida guilliermondii )
  • Rhagium mordax Coleoptera Cerambycidae Cecae around midgut ( Candida )
  • Carpophilus Coleoptera Nitidulidae Intestinal tract (10 yeast species) hemipterus
  • Odontotaenius Coleoptera Passalidae Hindgut ( Enteroramus dimorphus ) disjunctus
  • Odontotaenius Coleoptera Passalidae Gut ( Pichia stipitis , P.
  • Dendroctonus frontalis Coleoptera Scolytidae Midgut ( Candida sp.) lps sexdentatus Coleoptera: Scolytidae Digestive tract ( Pichia bovis , P. rhodanensis ) Hansenula holstii ( Candida rhagii ) Digestive tract ( Candida pulcherina ) lps typographus Coleoptera: Scolytidae Alimentary canal Alimentary tracts ( Hansenula capsulata , Candida parapsilosis ) Guts and beetle homogenates ( Hansenula holstii , H. capsulata , Candida diddensii , C.
  • Homoptera Aphididae Tissue sections Hamiltonaphis styraci Glyphinaphis bambusae Cerataphis sp. Hamiltonaphis styraci Homoptera: Aphididae Abdominal hemocoel Cofana unimaculata Homoptera: Cicadellidae Fat body Leofa unicolor Homoptera: Cicadellidae Fat body Lecaniines , etc. Homoptera: Coccoidea d Hemolymph, fatty tissue, etc. Lecanium sp.
  • Homoptera Coccidae Hemolymph, adipose tissue Ceroplastes (4 sp.) Homoptera: Coccidae Blood smears Laodelphax striatellus Homoptera: Delphacidae Fat body Eggs Eggs ( Candida ) Nilaparvata lugens Homoptera: Delphacidae Fat body Eggs (2 unidentified yeast species) Eggs, nymphs ( Candida ) Eggs (7 unidentified yeast species) Eggs ( Candida ) Nisia nervosa Homoptera: Delphacidae Fat body Nisia grandiceps Perkinsiella spp.
  • Homoptera Delphacidae Fat body Amrasca devastans
  • Homoptera Jassidae Eggs, mycetomes, hemolymph Tachardina lobata
  • Homoptera Kerriidae Blood smears ( Torula variabilis ) sp.
  • Comperia merceti Hymenoptera Encyrtidae Hemolymph, gut, poison gland
  • Solenopsis invicta Hymenoptera Formicidae Hemolymph ( Myrmecomyces annellisae )
  • S. quinquecuspis Solenopsis invicta Hymenoptera: Formicidae Fourth instar larvae ( Candida parapsilosis , Yarrowia lipolytica ) Gut and hemolymph ( Candida parapsilosis , C. lipolytica , C. guillermondii , C.
  • the modulating agent may target a single fungal species.
  • the modulating agent may target at least about any of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 150, 200, 250, 500, or more distinct fungal species.
  • the modulating agent may target any one of about 1 to about 5, about 5 to about 10, about 10 to about 20, about 20 to about 50, about 50 to about 100, about 100 to about 200, about 200 to about 500, about 10 to about 50, about 5 to about 20, or about 10 to about 100 distinct fungal species.
  • the modulating agent may target at least about any of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, or more phyla, classes, orders, families, or genera of fungi.
  • the modulating agent may increase a population of one or more fungi (e.g., pathogenic or parasitic fungi) by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% or more in the host in comparison to a host organism to which the modulating agent has not been administered.
  • the modulating agent may reduce the population of one or more fungi (e.g., symbiotic fungi) by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% or more in the host in comparison to a host organism to which the modulating agent has not been administered.
  • the modulating agent may eradicate the population of a fungi (e.g., symbiotic fungi) in the host.
  • the modulating agent may increase the level of one or more symbiotic fungi by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% or more in the host and/or may decrease the level of one or more symbiotic fungi by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% or more in the host in comparison to a host organism to which the modulating agent has not been administered.
  • the modulating agent may alter the fungal diversity and/or fungal composition of the host.
  • the modulating agent may increase the fungal diversity in the host relative to a starting diversity by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or more in comparison to a host organism to which the modulating agent has not been administered.
  • the modulating agent may decrease the fungal diversity in the host relative to a starting diversity by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or more in comparison to a host organism to which the modulating agent has not been administered.
  • the modulating agent may alter the function, activity, growth, and/or division of one or more fungi.
  • the modulating agent may alter the expression of one or more genes in the fungus.
  • the modulating agent may alter the function of one or more proteins in the fungus.
  • the modulating agent may alter the function of one or more cellular components in the fungus.
  • the modulating agent may kill the fungus.
  • the target fungus may reside in one or more parts of the insect.
  • the fungus resides in or on one or more parts of the insect gut, including, e.g., the foregut, midgut, and/or hindgut.
  • the fungus lives extracellularly in the hemolymph, fat bodies or in specialized structures in the host.
  • Changes to the population of fungi in the host may be determined by any methods known in the art, such as microarray, polymerase chain reaction (PCR), real-time PCR, flow cytometry, fluorescence microscopy, transmission electron microscopy, fluorescence in situ hybridization (e.g., FISH), spectrophotometry, matrix-assisted laser desorption ionization-mass spectrometry (MALDI-MS), and DNA sequencing.
  • PCR polymerase chain reaction
  • FISH fluorescence in situ hybridization
  • MALDI-MS matrix-assisted laser desorption ionization-mass spectrometry
  • DNA sequencing DNA sequencing.
  • a sample of the host treated with a modulating agent is sequenced (e.g., by metagenomics sequencing) to determine the microbiome of the host after delivery or administration of the modulating agent.
  • a sample of a host that did not receive the modulating agent is also sequenced to provide a reference.
  • the modulating agent of the methods and compositions provided herein may include a phage, a polypeptide, a small molecule, an antibiotic, a secondary metabolite, a bacterium, a fungus, or any combination thereof.
  • the modulating agent described herein may include a phage (e.g., a lytic phage or a non-lytic phage).
  • a phage e.g., a lytic phage or a non-lytic phage.
  • an effective concentration of any phage described herein may alter a level, activity, or metabolism of one or more microorganisms (as described herein) resident in a host described herein (e.g., a vector of an animal pathogen, e.g., a mosquito, a mite, a biting louse, or a tick), the modulation resulting in a decrease in the host's fitness (e.g., as outlined herein).
  • a host described herein e.g., a vector of an animal pathogen, e.g., a mosquito, a mite, a biting louse, or a tick
  • the modulating agent includes at least one phage selected from the order Tectiviridae, Myoviridae, Siphoviridae, Podoviridae, Caudovirales, Lipothrixviridae, Rudiviridae, or Ligamenvirales.
  • the composition includes at least one phage selected from the family Myoviridae, Siphoviridae, Podoviridae, Lipothrixviridae, Rudiviridae, Ampullaviridae, Bicaudaviridae, Clavaviridae, Corticoviridae, Cystoviridae, Fuselloviridae, Gluboloviridae, Guttaviridae, Inoviridae, Leviviridae, Microviridae, Plasmaviridae, and Tectiviridae. Further non-limiting examples of phages useful in the methods and compositions are listed in Table 3.
  • NC_009382 carotovorum ⁇ RSA1 (NC_009382), Ralstonia Bombyx mori ⁇ RSB1 (NC_011201), ⁇ RSL1 solanacearum (NC_010811), RSM1 (NC_008574) SF1(NC_028807) Streptomyces Philantus sp.; Trachypus scabies sp ECML-4 (NC_025446), ECML-117 Escherichia coli Apidae family; (NC_025441), ECML-134 (NC_025449) Varroa destructor SSP5(JX274646.1), SSP6 Salmonella sp.
  • Drosphilidae family (NC_004831), SFP10 (NC_016073), F18SE (NC_028698) ⁇ (NC_001416), Bcp1 (NC_024137) Bacillus sp. Gypsy moth; Lymantria dispar ; Varroa destructor Phi1 (NC_009821) Enterococcus Schistocerca gragaria sp. ⁇ KMV (NC_005045), Pseudomonas Lymantria dispar ; Apidae ⁇ EL(AJ697969.1), ⁇ KZ (NC_004629) sp.
  • NC_004112 phig1e
  • NC_0043005 Lactobacilli sp. Apidae family
  • Drosophila family Drosophila family
  • Varroa destructor KLPN1 NC_028760
  • Klebsiella sp C. capitata vB_AbaM_Acibel004 NC_025462
  • Acinetobacter Schistocerca gragaria vB_AbaP_Acibel007 NC_025457
  • a modulating agent includes a lytic phage.
  • the phage causes lysis in the target bacterial cell.
  • the lytic phage targets and kills a bacterium resident in a host insect to decrease the fitness of the host.
  • the phage of the modulating agent may be a non-lytic phage (also referred to as lysogenic or temperate phage).
  • the bacterial cell may remain viable and able to stably maintain expression of genes encoded in the phage genome.
  • a non-lytic phage is used to alter gene expression in a bacterium resident in a host insect to decrease the fitness of the host.
  • the modulating agent includes a mixture of lytic and non-lytic phage.
  • the phage is a naturally occurring phage.
  • a naturally occurring phage may be isolated from an environmental sample containing a mixture of different phages.
  • the naturally occurring phage may be isolated using methods known in the art to isolate, purify, and identify phage that target a particular microorganism (e.g., a bacterial endosymbiont in an insect host).
  • the phage may be engineered based on a naturally occurring phage.
  • the modulating agent described herein may include phage with either a narrow or broad bacterial target range.
  • the phage has a narrow bacterial target range.
  • the phage is a promiscuous phage with a large bacterial target range.
  • the promiscuous phage may target at least about any of 5, 10, 20, 30, 40, 50, or more bacterium resident in the host.
  • a phage with a narrow bacterial target range may target a specific bacterial strain in the host without affecting another, e.g., non-targeted, bacterium in the host.
  • the phage may target no more than about any of 50, 40, 30, 20, 10, 8, 6, 4, 2, or 1 bacterium resident in the host.
  • the phage described herein may be useful in targeting one or more bacteria resident in the mosquito, including, but not limited to, EspZ, Serratia spp (e.g., Serratia marcescens ), Enterbacterioaceae spp., Enterobacter spp. (e.g., Enterobacter cloacae, Enterobacter amnigenus, Enterobacter ludwigii ), Proteus spp., Acinetobacter spp., Wigglesworthia spp. ( Wigglesworthia gloosinidia ), Xanthomonas spp.
  • EspZ Serratia spp
  • Serratia marcescens e.g., Serratia marcescens
  • Enterbacterioaceae spp. Enterobacter spp.
  • Enterobacter spp. e.g., Enterobacter cloacae, Enterobacter amnigenus, Enterobacter ludwigii
  • Pseudomonas spp. e.g., Pseudomonas aeruginosa, Pseudomonas stutzeri, Pseudomonas rhodesiae
  • Escherichia spp. e.g., Escherchia coli
  • Cedecea spp. e.g., Cedecea lapagel
  • Ewingella spp. e.g., Ewingella americana
  • Bacillus spp. e.g., Bacillus pumilus
  • Comamonas spp. Comamonas spp., or Vagococcus spp.
  • Wolbachia spp. e.g., Wolbachia —wMel, Wolbachia —wAlbB, Wolbachia —wMelPop, Wolbachia —wMelPop-CLA.
  • compositions described herein may include any number of phage, such as at least about any one of 1, 2, 3, 4, 5, 10, 15, 20, 30, 40, 50, 100, or more phage.
  • the composition includes phage from one or more (e.g., 2, 3, 4, 5, 6, 7, 8, 9, 10, or more phage) families, one or more orders (e.g., 2, 3, 4, 5, 6, 7, 8, 9, 10, or more phage), or one or more species (e.g., 1, 2, 3, 4, 5, 10, 15, 20, 30, 40, 50, 100, or more phage).
  • Compositions including one or more phage are also referred herein as “phage cocktails.” Phage cocktails are useful because they allow for targeting of a wider host range of bacteria.
  • a cocktail includes multiple phages targeting one bacterial species.
  • a cocktail includes multiple phages targeting multiple bacterial species.
  • a one-phage “cocktail” includes a single promiscuous phage (i.e. a phage with a large host range) targeting many strains within a species.
  • Suitable concentrations of the phage in the modulating agent described herein depends on factors such as efficacy, survival rate, transmissibility of the phage, number of distinct phage, and/or lysin types in the compositions, formulation, and methods of application of the composition.
  • the phage is in a liquid or a solid formulation.
  • the concentration of each phage in any of the compositions described herein is at least about any of 10 2 , 10 3 , 10 4 , 10 5 , 10 6 , 10 7 , 10 8 , 10 9 , 10 10 or more pfu/ml.
  • the concentration of each phage in any of the compositions described herein is no more than about any of 10 2 , 10 3 , 10 4 , 10 5 , 10 6 , 10 7 , 10 8 , 10 9 pfu/ml. In some instances, the concentration of each phage in the composition is any of about 10 2 to about 10 3 , about 10 3 to about 10 4 , about 10 4 to about 10 5 , about 10 5 to about 10 6 , about 10 7 to about 10 8 , about 10 8 to about 10 9 , about 10 2 to about 10 4 , about 10 4 to about 10 6 , about 10 6 to about 10 9 , or about 10 3 to about 10 8 pfu/ml.
  • the concentration of each type of the phages may be the same or different.
  • the concentration of one phage in the cocktail is about 10 8 pfu/ml and the concentration of a second phage in the cocktail is about 10 6 pfu/ml.
  • a modulating agent including a phage as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of phage concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of phage concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of phage concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • a target host gut
  • phages e.g., one or more naturally occurring phage
  • polypeptides e.g., a bacteriocin, R-type bacteriocin, nodule C-rich peptide, antimicrobial peptide, lysin, or bacteriocyte regulatory peptide
  • an effective concentration of any peptide or polypeptide described herein may alter a level, activity, or metabolism of one or more microorganisms (as described herein, e.g., a Wolbachia spp.
  • a host e.g., a vector of an animal pathogen, e.g., a mosquito, mite, biting louse, or tick
  • the modulation resulting in a decrease in the host's fitness e.g., as outlined herein.
  • Polypeptides included herein may include naturally occurring polypeptides or recombinantly produced variants.
  • the polypeptide may be a functionally active variant of any of the polypeptides described herein with at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a polypeptide described herein or a naturally occurring polypeptide.
  • a modulating agent comprising a polypeptide as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • concentration inside a target host gut e.g.,
  • polypeptide modulating agents discussed hereinafter namely bacteriocins, lysins, antimicrobial peptides, nodule C-rich peptides, and bacteriocyte regulatory peptides, can be used to alter the level, activity, or metabolism of target microorganisms (e.g., Rickettsia or Wolbochia ) as indicated in the section for decreasing the fitness of host insects (e.g., a vector of an animal pathogen, e.g., a mosquito, a mite, a biting louse, or a tick).
  • target microorganisms e.g., Rickettsia or Wolbochia
  • host insects e.g., a vector of an animal pathogen, e.g., a mosquito, a mite, a biting louse, or a tick.
  • the modulating agent described herein may include a bacteriocin.
  • the bacteriocin is naturally produced by Gram-positive bacteria, such as Pseudomonas, Streptomyces, Bacillus, Staphylococcus , or lactic acid bacteria (LAB, such as Lactococcus lactis ).
  • the bacteriocin is naturally produced by Gram-negative bacteria, such as Hafnia alvei, Citrobacter freundii, Klebsiella oxytoca, Klebsiella pneumonia, Enterobacter cloacae, Serratia plymithicum, Xanthomonas campestris, Erwinia carotovora, Ralstonia solanacearum , or Escherichia coli .
  • Exemplary bacteriocins include, but are not limited to, Class I-IV LAB antibiotics (such as lantibiotics), colicins, microcins, and pyocins. Non-limiting examples of bacteriocins are listed in Table 4.
  • WVTTIVSILTAV GSGGLSLLAAA GRESIKAYLKKE IKKKGKRAVIAW SEQ ID NO: 48
  • Class III b aureocin A70 Staphylococcus Broad spectrum Gram MSWLNFLKYIAK aureus positive and Gram YGKKAVSAAWK negative bacteria.
  • YKGKVLEWLNV GPTLEWVWQKL KKIAGL SEQ ID NO: 49
  • Class IV Garvicin A Lactococcus Broad spectrum Gram IGGALGNALNGL garvieae positive and Gram GTWANMMNGG negative bacteria.
  • GFVNQWQVYA NKGKINQYRPY (SEQ ID NO: 50) Unclassified Colicin V Escherichia coli Active against MRTLTLNELDS Escherichia coli (also VSGGASGRDIA closely related MAIGTLSGQFV bacteria), AGGIGAAAGGV Enterobacteriaceae AGGAIYDYAST HKPNPAMSPSG LGGTIKQKPEGI PSEAWNYAAGR LCNWSPNNLSD VCL (SEQ ID NO: 51)
  • the bacteriocin is a colicin, a pyocin, or a microcin produced by Gram-negative bacteria. In some instances, the bacteriocin is a colicin.
  • the colicin may be a group A colicin (e.g., uses the Tol system to penetrate the outer membrane of a target bacterium) or a group B colicin (e.g., uses the Ton system to penetrate the outer membrane of a target bacterium). In some instances, the bacteriocin is a microcin.
  • the microcin may be a class I microcin (e.g., ⁇ 5 kDa, has post-translational modifications) or a class II microcin (e.g., 5-10 kDa, with or without post-translational modifications).
  • the class II microcin is a class IIa microcin (e.g., requires more than one genes to synthesize and assemble functional peptides) or a class IIb microcin (e.g., linear peptides with or without post-translational modifications at C-terminus).
  • the bacteriocin is a pyocin.
  • the pyocin is an R-pyocin, F-pyocin, or S-pyocin.
  • the bacteriocin is a class I, class II, class III, or class IV bacteriocin produced by Gram-positive bacteria.
  • the modulating agent includes a Class I bacteriocin (e.g., lanthionine-containing antibiotics (lantibiotics) produced by a Gram-positive bacteria).
  • the class I bacteriocins or lantibiotic may be a low molecular weight peptide (e.g., less than about 5 kDa) and may possess post-translationally modified amino acid residues (e.g., lanthionine, ⁇ -methyllanthionine, or dehydrated amino acids).
  • the bacteriocin is a Class II bacteriocin (e.g., non-lantibiotics produced by Gram-positive bacteria). Many are positively charged, non-lanthionine-containing peptides, which unlike lantibiotics, do not undergo extensive post-translational modification.
  • the Class II bacteriocin may belong to one of the following subclasses: “pediocin-like” bacteriocins (e.g., pediocin PA-1 and carnobacteriocin X (Class IIa)); two-peptide bacteriocins (e.g., lactacin F and ABP-118 (Class IIb)); circular bacteriocins (e.g., carnocyclin A and enterocin AS-48 (Class 11c)); or unmodified, linear, non-pediocin-like bacteriocins (e.g., epidermicin N101 and lactococcin A (Class IId)).
  • pediocin-like bacteriocins e.g., pediocin PA-1 and carnobacteriocin X (Class IIa)
  • two-peptide bacteriocins e.g., lactacin F and ABP-118
  • the bacteriocin is a Class III bacteriocin (e.g., produced by Gram-positive bacteria).
  • Class III bacteriocins may have a molecular weight greater than 10 kDa and may be heat unstable proteins.
  • the Class III bacteriocins can be further subdivided into Group IIIA and Group IIIB bacteriocins.
  • the Group IIIA bacteriocins include bacteriolytic enzymes which kill sensitive strains by lysis of the cell well, such as Enterolisin A.
  • Group IIIB bacteriocins include non-lytic proteins, such as Caseicin 80, Helveticin J, and lactacin B.
  • the bacteriocin is a Class IV bacteriocin (e.g., produced by Gram-positive bacteria).
  • Class IV bacteriocins are a group of complex proteins, associated with other lipid or carbohydrate moieties, which appear to be required for activity. They are relatively hydrophobic and heat stable. Examples of Class IV bacteriocins leuconocin S, lactocin 27, and lactocin S.
  • the bacteriocin is an R-type bacteriocin.
  • R-type bacteriocins are contractile bacteriocidal protein complexes. Some R-type bacteriocins have a contractile phage-tail-like structure. The C-terminal region of the phage tail fiber protein determines target-binding specificity. They may attach to target cells through a receptor-binding protein, e.g., a tail fiber. Attachment is followed by sheath contraction and insertion of the core through the envelope of the target bacterium. The core penetration results in a rapid depolarization of the cell membrane potential and prompt cell death. Contact with a single R-type bacteriocin particle can result in cell death.
  • R-type bacteriocin may be thermolabile, mild acid resistant, trypsin resistant, sedimentable by centrifugation, resolvable by electron microscopy, or a combination thereof.
  • Other R-type bacteriocins may be complex molecules including multiple proteins, polypeptides, or subunits, and may resemble a tail structure of bacteriophages of the myoviridae family.
  • the subunit structures may be encoded by a bacterial genome, such as that of C. difficile or P. aeruginosa and form R-type bacteriocins to serve as natural defenses against other bacteria.
  • the R-type bacteriocin is a pyocin.
  • the pyocin is an R-pyocin, F-pyocin, or S-pyocin.
  • the bacteriocin is a functionally active variant of the bacteriocins described herein.
  • the variant of the bacteriocin has at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a bacteriocin described herein or a naturally occurring bacteriocin.
  • the bacteriocin may be bioengineered, according to standard methods, to modulate their bioactivity, e.g., increase or decrease or regulate, or to specify their target microorganisms.
  • the bacteriocin is produced by the translational machinery (e.g. a ribosome, etc.) of a microbial cell.
  • the bacteriocin is chemically synthesized.
  • Some bacteriocins can be derived from a polypeptide precursor.
  • the polypeptide precursor can undergo cleavage (e.g., processing by a protease) to yield the polypeptide of the bacteriocin itself.
  • the bacteriocin is produced from a precursor polypeptide.
  • the bacteriocin includes a polypeptide that has undergone post-translational modifications, for example, cleavage, or the addition of one or more functional groups.
  • the bacteriocins described herein may be formulated in a composition for any of the uses described herein.
  • the compositions disclosed herein may include any number or type (e.g., classes) of bacteriocins, such as at least about any one of 1 bacteriocin, 2, 3, 4, 5, 10, 15, 20, 30, 40, 50, 100, or more bacteriocins. Suitable concentrations of each bacteriocin in the compositions described herein depends on factors such as efficacy, stability of the bacteriocin, number of distinct bacteriocin types in the compositions, formulation, and methods of application of the composition. In some instances, each bacteriocin in a liquid composition is from about 0.01 ng/ml to about 100 mg/mL.
  • each bacteriocin in a solid composition is from about 0.01 ng/g to about 100 mg/g. In some instances, wherein the composition includes at least two types of bacteriocins, the concentration of each type of the bacteriocins may be the same or different. In some instances, the bacteriocin is provided in a composition including a bacterial cell that secretes the bacteriocin. In some instances, the bacteriocin is provided in a composition including a polypeptide (e.g., a polypeptide isolated from a bacterial cell).
  • Bacteriocins may neutralize (e.g., kill) at least one microorganism other than the individual bacterial cell in which the polypeptide is made, including cells clonally related to the bacterial cell and other microbial cells.
  • a bacterial cell may exert cytotoxic or growth-inhibiting effects on a plurality of microbial organisms by secreting bacteriocins.
  • the bacteriocin targets and kills one or more species of bacteria resident in the host via cytoplasmic membrane pore formation, cell wall interference (e.g., peptidoglycanase activity), or nuclease activity (e.g., DNase activity, 16S rRNase activity, or tRNase activity).
  • the bacteriocin has a neutralizing activity.
  • Neutralizing activity of bacteriocins may include, but is not limited to, arrest of microbial reproduction, or cytotoxicity.
  • Some bacteriocins have cytotoxic activity, and thus can kill microbial organisms, for example bacteria, yeast, algae, and the like.
  • Some bacteriocins can inhibit the reproduction of microbial organisms, for example bacteria, yeast, algae, and the like, for example by arresting the cell cycle.
  • the bacteriocin has killing activity.
  • the killing mechanism of bacteriocins is specific to each group of bacteriocins.
  • the bacteriocin has narrow-spectrum bioactivity.
  • Bacteriocins are known for their very high potency against their target strains. Some bacteriocin activity is limited to strains that are closely related to the bacteriocin producer strain (narrow-spectrum bioactivity). In some instances, the bacteriocin has broad-spectrum bioactivity against a wide range of genera.
  • bacteriocins interact with a receptor molecule or a docking molecule on the target bacterial cell membrane.
  • nisin is extremely potent against its target bacterial strains, showing antimicrobial activity even at a single-digit nanomolar concentration.
  • the nisin molecule has been shown to bind to lipid II, which is the main transporter of peptidoglycan subunits from the cytoplasm to the cell wall
  • the bacteriocin has anti-fungal activity.
  • a number of bacteriocins with anti-yeast or anti-fungal activity have been identified.
  • bacteriocins from Bacillus have been shown to have neutralizing activity against some yeast strains (see, for example, Adetunji and Olaoye, Malaysian Journal of Microbiology 9:130-13, 2013).
  • an Enterococcus faecalis peptide has been shown to have neutralizing activity against Candida species (see, for example, Shekh and Roy, BMC Microbiology 12:132, 2012).
  • bacteriocins from Pseudomonas have been shown to have neutralizing activity against fungi, such as Curvularia lunata, Fusarium species, Helminthosporium species, and Biopolaris species (see, for example, Shalani and Srivastava, The Internet Journal of Microbiology Volume 5 Number 2, 2008).
  • botrycidin AJ1316 and alirin B1 from B. subtilis have been shown to have antifungal activities.
  • a modulating agent including a bacteriocin as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of bacteriocin concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of bacteriocin concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of bacteriocin concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • bacteriocin concentration inside a target host gut e.g.
  • bacteriocins e.g., colA or nisin
  • the modulating agent described herein may include a lysin (e.g., also known as a murein hydrolase or peptidoglycan autolysin). Any lysin suitable for inhibiting a bacterium resident in the host may be used. In some instances, the lysin is one that can be naturally produced by a bacterial cell. In some instances, the lysin is one that can be naturally produced by a bacteriophage. In some instances, the lysin is obtained from a phage that inhibits a bacterium resident in the host. In some instances, the lysin is engineered based on a naturally occurring lysin.
  • a lysin e.g., also known as a murein hydrolase or peptidoglycan autolysin.
  • the lysin is engineered to be secreted by a host bacterium, for example, by introducing a signal peptide to the lysin. In some instances, the lysin is used in combination with a phage holin. In some instances, a lysin is expressed by a recombinant bacterium host that is not sensitive to the lysin. In some instances, the lysin is used to inhibit a Gram-positive or Gram-negative bacterium resident in the host.
  • the lysin may be any class of lysin and may have one or more substrate specificities.
  • the lysin may be a glycosidase, an endopeptidase, a carboxypeptidase, or a combination thereof.
  • the lysin cleaves the ⁇ -1-4 glycosidic bond in the sugar moiety of the cell wall, the amide bond connecting the sugar and peptide moieties of the bacterial cell wall, and/or the peptide bonds between the peptide moieties of the cell wall.
  • the lysin may belong to one or more specific lysin groups, depending on the cleavage site within the peptidoglycan.
  • the lysin is a N-acetyl- ⁇ -D-muramidase (e.g., lysozyme), lytic transglycosylase, N-acetyl- ⁇ -D-glucosaminidase, N-acetylmuramyl-L-alanine amidase, L,D-endopeptidase, D,D-endopeptidase, D,D-carboxypeptidase, L,D-carboxypeptidase, or L,D-transpeptidase.
  • lysins and their activities are listed in Table 5.
  • Lysins Target Bacteria Producer Lysins Activity Sequence S. pneumoniae Cp1 Cpl-1 Muramidase MVKKNDLFVDVSSH NGYDITGILEQMGTT NTIIKISESTTYLNPCL SAQVEQSNPIGFYHF ARFGGDVAEAEREA QFFLDNVPMQVKYLV LDYEDDPSGDAQAN TNACLRFMQMIADAG YKPIYYSYKPFTHDN VDYQQILAQFPNSLW IAGYGLNDGTANFEY FPSMDGIRWWQYSS NPFDKNIVLLDDEED DKPKTAGTWKQDSK GWWFRRNNGSFPY NKWEKIGGVWYYFD SKGYCLTSEWLKDN EKWYYLKDNGAMAT GWVLVGSEWYYMD DSGAMVTGWVKYKN NWYYMTNERGNMV SNEFIKSGKGWYFM NTNGELADNPSFTKE PDGLITVA (
  • aureus P68 Lys16 Endopeptidase N/A S. aureus K LysK Amidase and MAKTQAEINKRLDAY endopeptidase AKGTVDSPYRVKKAT SYDPSFGVMEAGAID ADGYYHAQCQDLITD YVLWLTDNKVRTWG NAKDQIKQSYGTGFK IHENKPSTVPKKGWI AVFTSGSYEQWGHI GIVYDGGNTSTFTILE QNWNGYANKKPTKR VDNYYGLTHFIEIPVK AGTTVKKETAKKSAS VKTPAPKKKATLKVSK NHINYTMDKRGKKPE GMVIHNDAGRSSGQ QYENSLANAGYARY ANGIAHYYGSEGYV WEAIDAKNQIAWHTG DGTGANSGNFRFAGI EVCQSMSASDAQFL KNEQAVFQFTAEKFK EWGLTPNRKTVRLH MEFVPTACPHRSMV LHTGFNPVTQGRPS
  • uberis (ATCC700407) Ply700 Amidase MTDSIQEMRKLQSIP prophage VRYDMGDRYGNDAD RDGRIEMDCSSAVSK ALGISMTNNTETLQQ ALPAIGYGKIHDAVD GTFDMQAYDVIIWAP RDGSSSLGAFGHVLI ATSPTTAIHCNYGSD GITENDYNYIWEING RPREIVFRKGVTQTQ ATVTSQFERELDVNA RLTVSDKPYYEATLS EDYYVEAGPRIDSQD KELIKAGTRVRVYEK LNGWSRINHPESAQ WVEDSYLVDATEM (SEQ ID NO: 63) S.
  • the lysin is a functionally active variant of the lysins described herein.
  • the variant of the lysin has at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a lysin described herein or a naturally occurring lysin.
  • the lysin may be bioengineered to modulate its bioactivity, e.g., increase or decrease or regulate, or to specify a target microorganism.
  • the lysin is produced by the translational machinery (e.g. a ribosome, etc.) of a microbial cell.
  • the lysin is chemically synthesized.
  • the lysin is derived from a polypeptide precursor.
  • the polypeptide precursor can undergo cleavage (for example, processing by a protease) to yield the polypeptide of the lysin itself.
  • the lysin is produced from a precursor polypeptide.
  • the lysin includes a polypeptide that has undergone post-translational modifications, for example, cleavage, or the addition of one or more functional groups.
  • the lysins described herein may be formulated in a composition for any of the uses described herein.
  • the compositions disclosed herein may include any number or type (e.g., classes) of lysins, such as at least about any one of 1 lysin, 2, 3, 4, 5, 10, 15, 20, or more lysins.
  • a suitable concentration of each lysin in the composition depends on factors such as efficacy, stability of the lysin, number of distinct lysin, the formulation, and methods of application of the composition.
  • each lysin in a liquid composition is from about 0.1 ng/mL to about 100 mg/mL.
  • each lysin in a solid composition is from about 0.1 ng/g to about 100 mg/g.
  • the concentration of each type of lysin may be the same or different.
  • a modulating agent including a lysin as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of lysin concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of lysin concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of lysin concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • the modulating agent described herein may include an antimicrobial peptide (AMP). Any AMP suitable for inhibiting a microorganism resident in the host may be used. AMPs are a diverse group of molecules, which are divided into subgroups on the basis of their amino acid composition and structure.
  • the AMP may be derived or produced from any organism that naturally produces AMPs, including AMPs derived from plants (e.g., copsin), insects (e.g., drosocin, scorpion peptide (e.g., Uy192, UyCT3, D3, D10, Uy17, Uy192), mastoparan, poneratoxin, cecropin, moricin, melittin), frogs (e.g., magainin, dermaseptin, aurein), and mammals (e.g., cathelicidins, defensins and protegrins).
  • plants e.g., copsin
  • insects e.g., drosocin, scorpion peptide (e.g., Uy192, UyCT3, D3, D10, Uy17, Uy192), mastoparan, poneratoxin, cecropin, moricin, melittin), frogs (e.g., magainin, der
  • the AMP may be a scorpion peptide, such as Uy192 (5′-FLSTIWNGIKGLL-3′; SEQ ID NO: 227), UyCT3 (5′-LSAIWSGIKSLF-3; SEQ ID NO: 228), D3 (5′-LWGKLWEGVKSLI-3′; SEQ ID NO: 229), and D10 (5′-FPFLKLSLKIPKSAIKSAIKRL-3′; SEQ ID NO: 230), Uy17 (5′-ILSAIWSGIKGLL-3′; SEQ ID NO: 231), or a combination thereof.
  • Uy192 5′-FLSTIWNGIKGLL-3′; SEQ ID NO: 227)
  • UyCT3 5′-LSAIWSGIKSLF-3; SEQ ID NO: 228)
  • D3 5′-LWGKLWEGVKSLI-3′; SEQ ID NO: 229)
  • D10 5′-FPFLKLSLKIPKSAIKSAIKRL-3′; SEQ ID NO: 230
  • Uy17 5′-
  • the antimicrobial peptide may be one having at least 90% sequence identity (e.g., at least 90%, 92%, 94%, 96%, 98%, or 100% sequence identity) with one or more of the following: cecropin (SEQ ID NO: 82), melittin, copsin, drosomycin (SEQ ID NO: 93), dermcidin (SEQ ID NO: 81), andropin (SEQ ID NO: 83), moricin (SEQ ID NO: 84), ceratotoxin (SEQ ID NO: 85), abaecin (SEQ ID NO: 86), apidaecin (SEQ ID NO: 87), prophenin (SEQ ID NO: 88), indolicidin (SEQ ID NO: 89), protegrin (SEQ ID NO: 90), tachyplesin (SEQ ID NO: 91), or defensin (SEQ ID NO: 92) to a vector of an animal pathogen.
  • cecropin SEQ ID NO: 82
  • the AMP may be active against any number of target microorganisms.
  • the AMP may have antibacterial and/or antifungal activities.
  • the AMP may have a narrow-spectrum bioactivity or a broad-spectrum bioactivity. For example, some AMPs target and kill only a few species of bacteria or fungi, while others are active against both gram-negative and gram-positive bacteria as well as fungi.
  • the AMP may function through a number of known mechanisms of action.
  • the cytoplasmic membrane is a frequent target of AMPs, but AMPs may also interfere with DNA and protein synthesis, protein folding, and cell wall synthesis.
  • AMPs with net cationic charge and amphipathic nature disrupt bacterial membranes leading to cell lysis.
  • AMPs may enter cells and interact with intracellular target to interfere with DNA, RNA, protein, or cell wall synthesis.
  • AMPs In addition to killing microorganisms, AMPs have demonstrated a number of immunomodulatory functions that are involved in the clearance of infection, including the ability to alter host gene expression, act as chemokines and/or induce chemokine production, inhibit lipopolysaccharide induced pro-inflammatory cytokine production, promote wound healing, and modulating the responses of dendritic cells and cells of the adaptive immune response.
  • the AMP is a functionally active variant of the AMPs described herein.
  • the variant of the AMP has at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of an AMP described herein or a naturally derived AMP.
  • the AMP may be bioengineered to modulate its bioactivity, e.g., increase or decrease or regulate, or to specify a target microorganism.
  • the AMP is produced by the translational machinery (e.g. a ribosome, etc.) of a cell.
  • the AMP is chemically synthesized.
  • the AMP is derived from a polypeptide precursor.
  • the polypeptide precursor can undergo cleavage (for example, processing by a protease) to yield the polypeptide of the AMP itself.
  • the AMP is produced from a precursor polypeptide.
  • the AMP includes a polypeptide that has undergone post-translational modifications, for example, cleavage, or the addition of one or more functional groups.
  • the AMPs described herein may be formulated in a composition for any of the uses described herein.
  • the compositions disclosed herein may include any number or type (e.g., classes) of AMPs, such as at least about any one of 1 AMP, 2, 3, 4, 5, 10, 15, 20, or more AMPs.
  • the compositions may include a cocktail of AMPs (e.g., a cocktail of scorpion peptides, e.g., UyCT3, D3, D10, and Uy17).
  • a suitable concentration of each AMP in the composition depends on factors such as efficacy, stability of the AMP, number of distinct AMP in the composition, the formulation, and methods of application of the composition.
  • each AMP in a liquid composition is from about 0.1 ng/mL to about 100 mg/mL (about 0.1 ng/mL to about 1 ng/mL, about 1 ng/mL to about 10 ng/mL, about 10 ng/mL to about 100 ng/mL, about 100 ng/mL to about 1000 ng/mL, about 1 mg/mL to about 10 mg/mL, about 10 mg/mL to about 100 mg/mL).
  • each AMP in a solid composition is from about 0.1 ng/g to about 100 mg/g (about 0.1 ng/g to about 1 ng/g, about 1 ng/g to about 10 ng/g, about 10 ng/g to about 100 ng/g, about 100 ng/g to about 1000 ng/g, about 1 mg/g to about 10 mg/g, about 10 mg/g to about 100 mg/g).
  • the concentration of each type of AMP may be the same or different.
  • a modulating agent including an AMP as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of AMP concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of AMP concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of AMP concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • a target level e.g., a predetermined or threshold level
  • AMP concentration inside a target host gut e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • AMPs such as scorpion peptides
  • the modulating agent described herein may include a nodule C-rich peptide (NCR peptide).
  • NCR peptides are produced in certain leguminous plants and play an important role in the mutualistic, nitrogen-fixing symbiosis of the plants with bacteria from the Rhizobiaceae family ( rhizobia ), resulting in the formation of root nodules where plant cells contain thousands of intracellular endosymbionts.
  • NCR peptides possess anti-microbial properties that direct an irreversible, terminal differentiation process of bacteria, e.g., to permeabilize the bacterial membrane, disrupt cell division, or inhibit protein synthesis.
  • NCR peptides are produced which direct irreversible differentiation of the bacteria into large polyploid nitrogen-fixing bacteroids.
  • Non-limiting examples of NCR peptides are listed in Table 7.
  • NCR Peptides NAME Peptide sequence Producer >gi
  • NCR peptide-producing plants include but are not limited to Pisum sativum (pea), Astragalus sinicus (IRLC legumes), Phaseolus vulgaris (bean), Vigna unguiculata (cowpea), Medicago truncatula (barrelclover), and Lotus japonicus .
  • pea Pisum sativum
  • IRLC Astragalus sinicus
  • Bean Phaseolus vulgaris
  • Vigna unguiculata cowpea
  • Medicago truncatula barrelclover
  • Lotus japonicus .
  • over 600 potential NCR peptides are predicted from the M. truncatula genome sequence and almost 150 different NCR peptides have been detected in cells isolated from root nodules by mass spectrometry.
  • the NCR peptides described herein may be mature or immature NCR peptides.
  • Immature NCR peptides have a C-terminal signal peptide that is required for translocation into the endoplasmic reticulum and cleaved after translocation.
  • the N-terminus of a NCR peptide includes a signal peptide, which may be cleavable, for targeting to a secretory pathway.
  • NCR peptides are generally small peptides with disulfide bridges that stabilize their structure.
  • Mature NCR peptides have a length in the range of about 20 to about 60 amino acids, about 25 to about 55 amino acids, about 30 to about 50 amino acids, about 35 to about 45 amino acids, or any range therebetween.
  • NCR peptides may include a conserved sequence of cysteine residues with the rest of the peptide sequence highly variable.
  • NCR peptides generally have about four or eight cysteines.
  • NCR peptides may be anionic, neutral, or cationic.
  • MAQFLLFVYSLIIFLSLFFGEAAFERTETRMLTIPCTSDDNCPKVISPCHTKCFDGFCGWYIEGSYEGP SEQ ID NO: 199
  • neutral and/or anionic NCR peptides such as NCR001, do not possess antimicrobial activities at a pl greater than about 8.
  • the NCR peptide is effective to kill bacteria. In some instances, the NCR peptide is effective to kill S. meliloti, Xenorhabdus spp, Photorhabdus spp, Candidatus spp, Buchnera spp, Blattabacterium spp, Baumania spp, Wigglesworthia spp, Wolbachia spp, Rickettsia spp, Orientia spp, Sodalis spp, Burkholderia spp, Cupriavidus spp, Frankia spp, Snirhizobium spp, Streptococcus spp, Wolinella spp, Xylella spp, Erwinia spp, Agrobacterium spp, Bacillus spp, Paenibacillus spp, Streptomyces spp, Micrococcus spp, Corynebacterium spp, Acetobacter
  • the NCR peptide is a functionally active variant of a NCR peptide described herein.
  • the variant of the NCR peptide has at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a NCR peptide described herein or naturally derived NCR peptide.
  • the NCR peptide may be bioengineered to modulate its bioactivity, e.g., increase or decrease or regulate, or to specify a target microorganism.
  • the NCR peptide is produced by the translational machinery (e.g. a ribosome, etc.) of a cell.
  • the NCR peptide is chemically synthesized.
  • the NCR peptide is derived from a polypeptide precursor. The polypeptide precursor can undergo cleavage (for example, processing by a protease) to yield the NCR peptide itself. As such, in some instances, the NCR peptide is produced from a precursor polypeptide.
  • the NCR peptide includes a polypeptide that has undergone post-translational modifications, for example, cleavage, or the addition of one or more functional groups.
  • the NCR peptide described herein may be formulated in a composition for any of the uses described herein.
  • the compositions disclosed herein may include any number or type of NCR peptides, such as at least about any one of 1 NCR peptide, 2, 3, 4, 5, 10, 15, 20, 30, 40, 50, 100, or more NCR peptides.
  • a suitable concentration of each NCR peptide in the composition depends on factors such as efficacy, stability of the NCR peptide, number of distinct NCR peptide, the formulation, and methods of application of the composition.
  • each NCR peptide in a liquid composition is from about 0.1 ng/mL to about 100 mg/mL. In some instances, each NCR peptide in a solid composition is from about 0.1 ng/g to about 100 mg/g. In some instances, wherein the composition includes at least two types of NCR peptides, the concentration of each type of NCR peptide may be the same or different.
  • a modulating agent including a NCR peptide as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of NCR peptide concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of NCR peptide concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of NCR peptide concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • the modulating agent described herein may include a bacteriocyte regulatory peptide (BRP).
  • BRPs are peptides expressed in the bacteriocytes of insects. These genes are expressed first at a developmental time point coincident with the incorporation of symbionts and their bacteriocyte-specific expression is maintained throughout the insect's life.
  • the BRP has a hydrophobic amino terminal domain, which is predicted to be a signal peptide.
  • some BRPs have a cysteine-rich domain.
  • the bacteriocyte regulatory peptide is a bacteriocyte-specific cysteine rich (BCR) protein.
  • Bacteriocyte regulatory peptides have a length between about 40 and 150 amino acids.
  • the bacteriocyte regulatory peptide has a length in the range of about 45 to about 145, about 50 to about 140, about 55 to about 135, about 60 to about 130, about 65 to about 125, about 70 to about 120, about 75 to about 115, about 80 to about 110, about 85 to about 105, or any range therebetween.
  • BRPs and their activities are listed in Table 8.
  • the BRP alters the growth and/or activity of one or more bacteria resident in the bacteriocyte of the host.
  • the BRP may be bioengineered to modulate its bioactivity (e.g., increase, decrease, or regulate) or to specify a target microorganism.
  • the BRP is produced by the translational machinery (e.g. a ribosome, etc.) of a cell.
  • the BRP is chemically synthesized.
  • the BRP is derived from a polypeptide precursor.
  • the polypeptide precursor can undergo cleavage (for example, processing by a protease) to yield the polypeptide of the BRP itself.
  • the BRP is produced from a precursor polypeptide.
  • the BRP includes a polypeptide that has undergone post-translational modifications, for example, cleavage, or the addition of one or more functional groups.
  • the variant of the BRP has at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a BRP described herein or naturally derived BRP.
  • the BRP described herein may be formulated in a composition for any of the uses described herein.
  • the compositions disclosed herein may include any number or type (e.g., classes) of BRPs, such as at least about any one of 1 BRP, 2, 3, 4, 5, 10, 15, 20, or more BRPs.
  • a suitable concentration of each BRP in the composition depends on factors such as efficacy, stability of the BRP, number of distinct BRP, the formulation, and methods of application of the composition.
  • each BRP in a liquid composition is from about 0.1 ng/mL to about 100 mg/mL.
  • each BRP in a solid composition is from about 0.1 ng/g to about 100 mg/g.
  • the concentration of each type of BRP may be the same or different.
  • a modulating agent including a BRP as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of BRP concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of BRP concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of BRP concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • a target host gut e.g.
  • an effective concentration of any small molecule described herein may alter the level, activity, or metabolism of one or more microorganisms (as described herein) resident in a host, the alteration resulting in a decrease in the host's fitness.
  • a modulating agent comprising a small molecule as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of a small molecule concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of small molecule concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of a small molecule concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • the small molecules discussed hereinafter can be used to alter the level, activity, or metabolism of target microorganisms as indicated in the sections for decreasing the fitness of a host insect (e.g., vector of an animal pathogen), such as a mosquito, a mite, a louse, or a tick.
  • a host insect e.g., vector of an animal pathogen
  • a host insect e.g., vector of an animal pathogen
  • a host insect e.g., vector of an animal pathogen
  • the modulating agent described herein may include an antibiotic. Any antibiotic known in the art may be used. Antibiotics are commonly classified based on their mechanism of action, chemical structure, or spectrum of activity.
  • the antibiotic described herein may target any bacterial function or growth processes and may be either bacteriostatic (e.g., slow or prevent bacterial growth) or bactericidal (e.g., kill bacteria).
  • the antibiotic is a bactericidal antibiotic.
  • the bactericidal antibiotic is one that targets the bacterial cell wall (e.g., penicillins and cephalosporins); one that targets the cell membrane (e.g., polymyxins); or one that inhibits essential bacterial enzymes (e.g., rifamycins, lipiarmycins, quinolones, and sulfonamides).
  • the bactericidal antibiotic is an aminoglycoside.
  • the antibiotic is a bacteriostatic antibiotic.
  • the bacteriostatic antibiotic targets protein synthesis (e.g., macrolides, lincosamides and tetracyclines).
  • Additional classes of antibiotics that may be used herein include cyclic lipopeptides (such as daptomycin), glycylcyclines (such as tigecycline), oxazolidinones (such as linezolid), or lipiarmycins (such as fidaxomicin).
  • examples of antibiotics include oxytetracycline, doxycycline, rifampicin, ciprofloxacin, ampicillin, and polymyxin B.
  • Other non-limiting examples of antibiotics are found in Table 9.
  • Antibiotics Antibiotics Action Penicillins, cephalosporins, Cell wall synthesis vancomycin Polymixin, gramicidin Membrane active agent, disrupt cell membrane Tetracyclines, macrolides, Inhibit protein synthesis chloramphenicol, clindamycin, spectinomycin Sulfonamides Inhibit folate-dependent pathways Ciprofloxacin Inhibit DNA-gyrase Isoniazid, rifampicin, Antimycobacterial agents pyrazinamide, ethambutol, (myambutol)l, streptomycin
  • the antibiotic described herein may have any level of target specificity (e.g., narrow- or broad-spectrum).
  • the antibiotic is a narrow-spectrum antibiotic, and thus targets specific types of bacteria, such as gram-negative or gram-positive bacteria.
  • the antibiotic may be a broad-spectrum antibiotic that targets a wide range of bacteria.
  • the antibiotics described herein may be formulated in a composition for any of the uses described herein.
  • the compositions disclosed herein may include any number or type (e.g., classes) of antibiotics, such as at least about any one of 1 antibiotic, 2, 3, 4, 5, 10, 15, 20, or more antibiotics (e.g., a combination of rifampicin and doxycycline, or a combination of ampicillin and rifampicin).
  • a suitable concentration of each antibiotic in the composition depends on factors such as efficacy, stability of the antibiotic, number of distinct antibiotics, the formulation, and methods of application of the composition. In some instances, wherein the composition includes at least two types of antibiotics, the concentration of each type of antibiotic may be the same or different.
  • a modulating agent including an antibiotic as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of antibiotic concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of antibiotic concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of antibiotic concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • a target host gut e.g., a predetermined
  • antibiotics e.g., doxycycline, oxytetracycline, azithromycin, ciprofloxacin, or rifampicin
  • an endosymbiotic bacterium such as a Wolbachia spp.
  • an insect host e.g., an insect vector of an animal pathogen
  • a mosquito or mite or tick or biting louse e.g., an insect vector of an animal pathogen
  • antibiotics such as oxytetracycline can be used as modulating agents that target an endosymbiotic bacterium, such as a Rickettsia spp., in an insect host, such as ticks, to decrease the fitness of the host (e.g., as outlined herein).
  • the modulating agent of the compositions and methods described herein includes a secondary metabolite.
  • Secondary metabolites are derived from organic molecules produced by an organism. Secondary metabolites may act (i) as competitive agents used against bacteria, fungi, amoebae, plants, insects, and large animals; (ii) as metal transporting agents; (iii) as agents of symbiosis between microbes and plants, insects, and higher animals; (iv) as sexual hormones; and (v) as differentiation effectors.
  • Non-limiting examples of secondary metabolites are found in Table 10.
  • the secondary metabolite used herein may include a metabolite from any known group of secondary metabolites.
  • secondary metabolites can be categorized into the following groups: alkaloids, terpenoids, flavonoids, glycosides, natural phenols (e.g., gossypol acetic acid), enals (e.g., trans-cinnamaldehyde), phenazines, biphenols and dibenzofurans, polyketides, fatty acid synthase peptides, nonribosomal peptides, ribosomally synthesized and post-translationally modified peptides, polyphenols, polysaccharides (e.g., chitosan), and biopolymers.
  • alkaloids e.g., gossypol acetic acid
  • enals e.g., trans-cinnamaldehyde
  • phenazines e.g., biphenols and dibenzofurans
  • Secondary metabolites useful for compositions and methods described herein include those that alter a natural function of an endosymbiont (e.g., primary or secondary endosymbiont), bacteriocyte, or extracellular symbiont.
  • one or more secondary metabolites described herein is isolated from a high throughput screening (HTS) for antimicrobial compounds.
  • HTS high throughput screening
  • a HTS screen identified 49 antibacterial extracts that have specificity against gram positive and gram negative bacteria from over 39,000 crude extracts from organisms growing in diverse ecosystems of one specific region.
  • the secondary metabolite is transported inside a bacteriocyte.
  • the small molecule is an inhibitor of vitamin synthesis.
  • the vitamin synthesis inhibitor is a vitamin precursor analog.
  • the vitamin precursor analog is pantothenol.
  • the small molecule is an amino acid analog.
  • the amino acid analog is L-canvanine, D-arginine, D-valine, D-methionine, D-phenylalanine, D-histidine, D-tryptophan, D-threonine, D-leucine, L-NG-nitroarginine, or a combination thereof.
  • the small molecule is a natural antimicrobial compound, such as propionic acid, levulinic acid, trans-cinnemaldehdye, nisin, or low molecular weight chitosan.
  • the secondary metabolite described herein may be formulated in a composition for any of the uses described herein.
  • the compositions disclosed herein may include any number or type (e.g., classes) of secondary metabolites, such as at least about any one of 1 secondary metabolite, 2, 3, 4, 5, 10, 15, 20, or more secondary metabolites.
  • a suitable concentration of each secondary metabolite in the composition depends on factors such as efficacy, stability of the secondary metabolite, number of distinct secondary metabolites, the formulation, and methods of application of the composition.
  • the concentration of each type of secondary metabolite may be the same or different.
  • a modulating agent including a secondary metabolite as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of secondary metabolite concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of secondary metabolite concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of secondary metabolite concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • a target level e.g., a predetermined or threshold level
  • secondary metabolites e.g., gossypol
  • secondary metabolites can be used as modulating agents that target an endosymbiotic bacterium in an insect host to decrease the fitness of the host (e.g., as outlined herein).
  • small molecules such as trans-cinnemaldehyde, levulinic acid, chitosan, vitamin analogs, or amino acid transport inhibitors, can be used as modulating agents that target an endosymbiotic bacterium in an insect host to decrease the fitness of the host (e.g., as outlined herein).
  • the modulating agent described herein includes one or more bacteria. Numerous bacteria are useful in the compositions and methods described herein. In some instances, the agent is a bacterial species endogenously found in the host. In some instances, the bacterial modulating agent is an endosymbiotic bacterial species. Non-limiting examples of bacteria that may be used as modulating agents include all bacterial species described herein in Section II of the detailed description and those listed in Table 1.
  • the modulating agent may be a bacterial species from any bacterial phyla present in insect guts, including Gammaproteobacteria, Alphaproteobacteria, Betaproteobacteria, Bacteroidetes, Firmicutes (e.g., Lactobacillus and Bacillus spp.), Clostridia, Actinomycetes, Spirochetes, Verrucomicrobia, and Actinobacteria.
  • the modulating agent is a bacterium that disrupts microbial diversity or otherwise alters the microbiota of the host in a manner detrimental to the host.
  • bacteria may be provided to disrupt the microbiota of mosquitos.
  • the bacterial modulating agent may compete with, displace, and/or reduce a population of symbiotic bacteria in a mosquito.
  • bacteria may be provided to disrupt the microbiota of mites.
  • the bacterial modulating agent may compete with, displace, and/or reduce a population of symbiotic bacteria in a mite.
  • bacteria may be provided to disrupt the microbiota of biting lice.
  • the bacterial modulating agent may compete with, displace, and/or reduce a population of symbiotic bacteria in a biting louse.
  • bacteria may be provided to disrupt the microbiota of ticks.
  • the bacterial modulating agent may compete with, displace, and/or reduce a population of symbiotic bacteria in a tick.
  • the bacterial modulating agents discussed herein can be used to alter the level, activity, or metabolism of target microorganisms as indicated in the sections for decreasing the fitness of a host insect (e.g., a vector of an animal pathogen), such as a mosquito a mite, a biting louse, or a tick.
  • a host insect e.g., a vector of an animal pathogen
  • a mosquito a mite e.g., a mosquito a mite, a biting louse, or a tick.
  • any of the modulating agents described herein may be fused or linked to an additional moiety.
  • the modulating agent includes a fusion of one or more additional moieties (e.g., 1 additional moiety, 2, 3, 4, 5, 6, 7, 8, 9, 10, or more additional moieties).
  • the additional moiety is any one of the modulating agents described herein (e.g., a peptide, polypeptide, small molecule, or antibiotic).
  • the additional moiety may not act as modulating agent itself but may instead serve a secondary function.
  • the additional moiety may to help the modulating agent access, bind, or become activated at a target site in the host (e.g., at a host gut or a host bacteriocyte) or at a target microorganism resident in the host (e.g., a vector of an animal pathogen, e.g., a mosquito, a mite, a biting louse, or a tick).
  • a target site in the host e.g., at a host gut or a host bacteriocyte
  • a target microorganism resident in the host e.g., a vector of an animal pathogen, e.g., a mosquito, a mite, a biting louse, or a tick.
  • the additional moiety may help the modulating agent penetrate a target host cell or target microorganism resident in the host.
  • the additional moiety may include a cell penetrating peptide.
  • Cell penetrating peptides may be natural sequences derived from proteins; chimeric peptides that are formed by the fusion of two natural sequences; or synthetic CPPs, which are synthetically designed sequences based on structure-activity studies.
  • CPPs have the capacity to ubiquitously cross cellular membranes (e.g., prokaryotic and eukaryotic cellular membranes) with limited toxicity.
  • CPPs may have the capacity to cross cellular membranes via energy-dependent and/or independent mechanisms, without the necessity of a chiral recognition by specific receptors.
  • CPPs can be bound to any of the modulating agents described herein.
  • a CPP can be bound to an antimicrobial peptide (AMP), e.g., a scorpion peptide, e.g., UY192 fused to a cell penetrating peptide (e.g., YGRKKRRQRRRFLSTIWNGIKGLLFAM; SEQ ID NO: 232).
  • AMP antimicrobial peptide
  • a scorpion peptide e.g., UY192 fused to a cell penetrating peptide (e.g., YGRKKRRQRRRFLSTIWNGIKGLLFAM; SEQ ID NO: 232).
  • Non-limiting examples of CPPs are listed in Table 11.
  • CPPs Cell Penetrating Peptides
  • the additional moiety helps the modulating agent bind a target microorganism (e.g., a fungi or bacterium) resident in the host.
  • the additional moiety may include one or more targeting domains.
  • the targeting domain may target the modulating agent to one or more microorganisms (e.g., bacterium or fungus) resident in the gut of the host.
  • the targeting domain may target the modulating agent to a specific region of the host (e.g., host gut or bacteriocyte) to access microorganisms that are generally present in said region of the host.
  • the targeting domain may target the modulating agent to the foregut, midgut, or hindgut of the host.
  • the targeting domain may target the modulating agent to a bacteriocyte in the host and/or one or more specific bacteria resident in a host bacteriocyte.
  • the targeting domain may be Galanthus nivalis lectin or agglutinin (GNA) bound to a modulating agent described herein, e.g., an AMP, e.g., a scorpion peptide, e.g., Uy192.
  • the modulating agent may include a pre- or pro-amino acid sequence.
  • the modulating agent may be an inactive protein or peptide that can be activated by cleavage or post-translational modification of a pre- or pro-sequence.
  • the modulating agent is engineered with an inactivating pre- or pro-sequence.
  • the pre- or pro-sequence may obscure an activation site on the modulating agent, e.g., a receptor binding site, or may induce a conformational change in the modulating agent.
  • the modulating agent upon cleavage of the pre- or pro-sequence, the modulating agent is activated upon cleavage of the pre- or pro-sequence.
  • the modulating agent may include a pre- or pro-small molecule, e.g., an antibiotic.
  • the modulating agent may be an inactive small molecule described herein that can be activated in a target environment inside the host.
  • the small molecule may be activated upon reaching a certain pH in the host gut.
  • the modulating agent may further include a linker.
  • the linker may be a chemical bond, e.g., one or more covalent bonds or non-covalent bonds.
  • the linker may be a peptide linker (e.g., 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 20, 25, 30, 35, 40, or more amino acids longer).
  • the linker maybe include any flexible, rigid, or cleavable linkers described herein.
  • a flexible peptide linker may include any of those commonly used in the art, including linkers having sequences having primarily Gly and Ser residues (“GS” linker). Flexible linkers may be useful for joining domains that require a certain degree of movement or interaction and may include small, non-polar (e.g. Gly) or polar (e.g. Ser or Thr) amino acids.
  • a peptide linker may be a rigid linker.
  • Rigid linkers are useful to keep a fixed distance between moieties and to maintain their independent functions.
  • Rigid linkers may also be useful when a spatial separation of the domains is critical to preserve the stability or bioactivity of one or more components in the fusion.
  • Rigid linkers may, for example, have an alpha helix-structure or Pro-rich sequence, (XP) n , with X designating any amino acid, preferably Ala, Lys, or Glu.
  • a peptide linker may be a cleavable linker.
  • linkers may be cleaved under specific conditions, such as the presence of reducing reagents or proteases.
  • In vivo cleavable linkers may utilize the reversible nature of a disulfide bond.
  • One example includes a thrombin-sensitive sequence (e.g., PRS) between two Cys residues.
  • PRS thrombin-sensitive sequence
  • In vitro thrombin treatment of CPRSC results in the cleavage of the thrombin-sensitive sequence, while the reversible disulfide linkage remains intact.
  • Such linkers are known and described, e.g., in Chen et al., Adv. Drug Deliv. Rev.
  • Cleavage of linkers in fusions may also be carried out by proteases that are expressed in vivo under conditions in specific cells or tissues of the host or microorganisms resident in the host. In some instances, cleavage of the linker may release a free functional, modulating agent upon reaching a target site or cell.
  • Fusions described herein may alternatively be linked by a linking molecule, including a hydrophobic linker, such as a negatively charged sulfonate group; lipids, such as a poly (—CH2-) hydrocarbon chains, such as polyethylene glycol (PEG) group, unsaturated variants thereof, hydroxylated variants thereof, amidated or otherwise N-containing variants thereof, non-carbon linkers; carbohydrate linkers; phosphodiester linkers, or other molecule capable of covalently linking two or more molecules, e.g., two modulating agents.
  • a hydrophobic linker such as a negatively charged sulfonate group
  • lipids such as a poly (—CH2-) hydrocarbon chains, such as polyethylene glycol (PEG) group, unsaturated variants thereof, hydroxylated variants thereof, amidated or otherwise N-containing variants thereof, non-carbon linkers
  • carbohydrate linkers such as polyethylene glycol (PEG) group
  • PEG polyethylene glycol
  • Non-covalent linkers may be used, such as hydrophobic lipid globules to which the modulating agent is linked, for example, through a hydrophobic region of the modulating agent or a hydrophobic extension of the modulating agent, such as a series of residues rich in leucine, isoleucine, valine, or perhaps also alanine, phenylalanine, or even tyrosine, methionine, glycine, or other hydrophobic residue.
  • the modulating agent may be linked using charge-based chemistry, such that a positively charged moiety of the modulating agent is linked to a negative charge of another modulating agent or an additional moiety.
  • compositions described herein may be formulated either in pure form (e.g., the composition contains only the modulating agent) or together with one or more additional agents (such as excipient, delivery vehicle, carrier, diluent, stabilizer, etc.) to facilitate application or delivery of the compositions.
  • additional agents such as excipient, delivery vehicle, carrier, diluent, stabilizer, etc.
  • excipients and diluents include, but are not limited to, lactose, dextrose, sucrose, sorbitol, mannitol, starches, gum acacia, calcium phosphate, alginates, tragacanth, gelatin, calcium silicate, microcrystalline cellulose, polyvinylpyrrolidone, cellulose, water, saline solution, syrup, methylcellulose, methyl- and propylhydroxybenzoates, talc, magnesium stearate, and mineral oil.
  • the composition includes a delivery vehicle or carrier.
  • the delivery vehicle includes an excipient.
  • excipients include, but are not limited to, solid or liquid carrier materials, solvents, stabilizers, slow-release excipients, colorings, and surface-active substances (surfactants).
  • the delivery vehicle is a stabilizing vehicle.
  • the stabilizing vehicle includes a stabilizing excipient.
  • Exemplary stabilizing excipients include, but are not limited to, epoxidized vegetable oils, antifoaming agents, e.g. silicone oil, preservatives, viscosity regulators, binding agents and tackifiers.
  • the stabilizing vehicle is a buffer suitable for the modulating agent.
  • the composition is microencapsulated in a polymer bead delivery vehicle.
  • the stabilizing vehicle protects the modulating agent against UV and/or acidic conditions.
  • the delivery vehicle contains a pH buffer.
  • the composition is formulated to have a pH in the range of about 4.5 to about 9.0, including for example pH ranges of about any one of 5.0 to about 8.0, about 6.5 to about 7.5, or about 6.5 to about 7.0.
  • the composition may be formulated into emulsifiable concentrates, suspension concentrates, directly sprayable or dilutable solutions, coatable pastes, diluted emulsions, spray powders, soluble powders, dispersible powders, wettable powders, dusts, granules, encapsulations in polymeric substances, microcapsules, foams, aerosols, carbon dioxide gas preparations, tablets, resin preparations, paper preparations, nonwoven fabric preparations, or knitted or woven fabric preparations.
  • the composition is a liquid.
  • the composition is a solid.
  • the composition is an aerosol, such as in a pressurized aerosol can.
  • the composition is present in the waste (such as feces) of the pest.
  • the composition is present in or on a live pest.
  • the delivery vehicle is the food or water of the host. In other instances, the delivery vehicle is a food source for the host. In some instances, the delivery vehicle is a food bait for the host. In some instances, the composition is a comestible agent consumed by the host. In some instances, the composition is delivered by the host to a second host, and consumed by the second host. In some instances, the composition is consumed by the host or a second host, and the composition is released to the surrounding of the host or the second host via the waste (such as feces) of the host or the second host. In some instances, the modulating agent is included in food bait intended to be consumed by a host or carried back to its colony.
  • the delivery vehicle is a bacterial vector.
  • the modulating agent can be incorporated in a bacterial vector using any suitable cloning methods and reagents known in the art, such as described in Sambrook et al., Molecular Cloning: A Laboratory Manual, Cold Spring Harbor Laboratory Press, Cold Spring Harbor, N.Y., 1989.
  • Bacterial vector refers to any genetic element, such as plasmids, bacteriophage vectors, transposons, cosmids, and chromosomes, which is capable of replication inside bacterial cells and which is capable of transferring genes between cells.
  • Exemplary bacterial vectors include, but are not limited to, lambda vector system gtl 1, gt WES.tB, Charon 4, and plasmid vectors such as pBR322, pBR325, pACYC177, pACYC184, pUC8, pUC9, pUC18, pUC19, pLG339, pR290, pKC37, pKCIOI, SV 40, pBluescript II SK +/ ⁇ or KS +/ ⁇ (see “Stratagene Cloning Systems” Catalog, Stratagene, La Jolla, Calif., 1993), pQE, pIH821, pGEX, pET series (see Studier et al., “Use of T7 RNA Polymerase to Direct Expression of Cloned Genes,” Gene Expression Technology Vol. 185, 1990), and any derivatives thereof.
  • plasmid vectors such as pBR322, pBR325, pACYC177,
  • Each bacterial vector may encode one or more modulating agents.
  • the bacterial vector includes a phage genome to be expressed and packaged in the target symbiotic bacterium.
  • the bacterial vector includes a nucleic acid molecule encoding a lysin to be expressed in the target symbiotic bacterium or a host bacterium.
  • the lysin is co-expressed with a holin, or the lysin is engineered to have a signal peptide for secretion from the host bacterium.
  • the bacterial vector includes a nucleic acid molecule encoding a bacteriocin to be expressed in the target symbiotic bacterium.
  • the bacterial vector further includes one or more regulatory elements, such as promoters, termination signals, and transcription and translation elements.
  • the regulatory sequence is operably linked to a nucleic acid encoding a gene (such as a bacteriocin, lysin, or other polypeptides) to be expressed in the target symbiotic bacterium.
  • the bacterial vector is introduced into a bacterium to be consumed by the host or a member in the colony of the host.
  • the bacterium is the target symbiotic bacterium.
  • the bacterium is a naturally occurring bacterium of the gut of the host, or a genetically modified derivative thereof, which can be easily introduced to the host through ingestion.
  • Exemplary bacteria for use in carrying the bacterial vector include, but are not limited to, Proteobacter , including the genus Pseudomonas; Actinobacter , including Priopionibacterium and Corynebacterium; Firmicutes , including the any species of the genera Mycoplasma, Bacillus, Streptococcus, Staphylococcus; Fibrobacteres; Spirochaetes , including Treponema and Borrelia; Bacteroides , including the genera Bacteroides and Flavobacterium . Also suitable are any bacteria of the Enterobacteriaceae, including the genus Serratia , including, but not limited to S. marcescens, S. entomophila, S.
  • proteamaculans S. marcensces ; any species of Enterobacter , including, but not limited to, E. cloacae, E. amnigenus, E. aerogenes, E. dissolvens, E. agglomerans, E. hafiiiae ; and any species belonging to the following genera: Citrobacter, Escherichia, Klebsiella, Kluyvera, Panotea, Proteus, Salmonella, Xenorhabdus , and Yokenella.
  • the modulating agent may make up about 0.1% to about 100% of the composition, such as any one of about 0.01% to about 100%, about 1% to about 99.9%, about 0.1% to about 10%, about 1% to about 25%, about 10% to about 50%, about 50% to about 99%, or about 0.1% to about 90% of active ingredients (such as phage, lysin or bacteriocin).
  • the composition includes at least any of 0.1%, 0.5%, 1%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, or more active ingredients (such as phage, lysin or bacteriocin).
  • the concentrated agents are preferred as commercial products, the final user normally uses diluted agents, which have a substantially lower concentration of active ingredient.
  • any of the formulations described herein may be used in the form of a bait, a coil, an electric mat, a smoking preparation, a fumigant, or a sheet.
  • compositions provided herein may be in a liquid formulation.
  • Liquid formulations are generally mixed with water, but in some instances may be used with crop oil, diesel fuel, kerosene or other light oil as a carrier.
  • the amount of active ingredient often ranges from about 0.5 to about 80 percent by weight.
  • An emulsifiable concentrate formulation may contain a liquid active ingredient, one or more petroleum-based solvents, and an agent that allows the formulation to be mixed with water to form an emulsion.
  • Such concentrates may be used in agricultural, ornamental and turf, forestry, structural, food processing, livestock, and public health pest formulations. These may be adaptable to application equipment from small portable sprayers to hydraulic sprayers, low-volume ground sprayers, mist blowers, and low-volume aircraft sprayers.
  • Some active ingredients are readily dissolve in a liquid carrier. When mixed with a carrier, they form a solution that does not settle out or separate, e.g., a homogenous solution.
  • Formulations of these types may include an active ingredient, a carrier, and one or more other ingredients. Solutions may be used in any type of sprayer, indoors and outdoors.
  • the composition may be formulated as an invert emulsion.
  • An invert emulsion is a water-soluble active ingredient dispersed in an oil carrier. Invert emulsions require an emulsifier that allows the active ingredient to be mixed with a large volume of petroleum-based carrier, usually fuel oil. Invert emulsions aid in reducing drift. With other formulations, some spray drift results when water droplets begin to evaporate before reaching target surfaces; as a result the droplets become very small and lightweight. Because oil evaporates more slowly than water, invert emulsion droplets shrink less and more active ingredient reaches the target. Oil further helps to reduce runoff and improve rain resistance. It further serves as a sticker-spreader by improving surface coverage and absorption. Because droplets are relatively large and heavy, it is difficult to get thorough coverage on the undersides of foliage. Invert emulsions are most commonly used along rights-of-way where drift to susceptible non-target areas can be a problem.
  • a flowable or liquid formulation combines many of the characteristics of emulsifiable concentrates and wettable powders. Manufacturers use these formulations when the active ingredient is a solid that does not dissolve in either water or oil. The active ingredient, impregnated on a substance such as clay, is ground to a very fine powder. The powder is then suspended in a small amount of liquid. The resulting liquid product is quite thick. Flowables and liquids share many of the features of emulsifiable concentrates, and they have similar disadvantages. They require moderate agitation to keep them in suspension and leave visible residues, similar to those of wettable powders.
  • Flowables/liquids are easy to handle and apply. Because they are liquids, they are subject to spilling and splashing. They contain solid particles, so they contribute to abrasive wear of nozzles and pumps. Flowable and liquid suspensions settle out in their containers. Because flowable and liquid formulations tend to settle, packaging in containers of five gallons or less makes remixing easier.
  • Aerosol formulations contain one or more active ingredients and a solvent. Most aerosols contain a low percentage of active ingredients. There are two types of aerosol formulations—the ready-to-use type commonly available in pressurized sealed containers and those products used in electrical or gasoline-powered aerosol generators that release the formulation as a smoke or fog.
  • Ready to use aerosol formulations are usually small, self-contained units that release the formulation when the nozzle valve is triggered.
  • the formulation is driven through a fine opening by an inert gas under pressure, creating fine droplets.
  • These products are used in greenhouses, in small areas inside buildings, or in localized outdoor areas.
  • Commercial models, which hold five to 5 pounds of active ingredient, are usually refillable.
  • Smoke or fog aerosol formulations are not under pressure. They are used in machines that break the liquid formulation into a fine mist or fog (aerosol) using a rapidly whirling disk or heated surface.
  • Dry formulations can be divided into two types: ready-to-use and concentrates that must be mixed with water to be applied as a spray. Most dust formulations are ready to use and contain a low percentage of active ingredients (less than about 10 percent by weight), plus a very fine, dry inert carrier made from talc, chalk, clay, nut hulls, or volcanic ash. The size of individual dust particles varies. A few dust formulations are concentrates and contain a high percentage of active ingredients. Mix these with dry inert carriers before applying. Dusts are always used dry and can easily drift to non-target sites.
  • the composition is formulated as granules.
  • Granular formulations are similar to dust formulations, except granular particles are larger and heavier.
  • the coarse particles may be made from materials such as clay, corncobs, or walnut shells.
  • the active ingredient either coats the outside of the granules or is absorbed into them.
  • the amount of active ingredient may be relatively low, usually ranging from about 0.5 to about 15 percent by weight.
  • Granular formulations are most often used to apply to the soil, insects living in the soil, or absorption into plants through the roots.
  • Granular formulations are sometimes applied by airplane or helicopter to minimize drift or to penetrate dense vegetation. Once applied, granules may release the active ingredient slowly. Some granules require soil moisture to release the active ingredient.
  • Granular formulations also are used to control larval mosquitoes and other aquatic pests. Granules are used in agricultural, structural, ornamental, turf, aquatic, right-of-way, and public health (biting insect) pest-control operations.
  • the composition is formulated as pellets. Most pellet formulations are very similar to granular formulations; the terms are used interchangeably. In a pellet formulation, however, all the particles are the same weight and shape. The uniformity of the particles allows use with precision application equipment.
  • the composition is formulated as a powder. In some instances, the composition is formulated as a wettable powder.
  • Wettable powders are dry, finely ground formulations that look like dusts. They usually must be mixed with water for application as a spray. A few products, however, may be applied either as a dust or as a wettable powder—the choice is left to the applicator. Wettable powders have about 1 to about 95 percent active ingredient by weight; in some cases more than about 50 percent. The particles do not dissolve in water. They settle out quickly unless constantly agitated to keep them suspended. They can be used for most pest problems and in most types of spray equipment where agitation is possible. Wettable powders have excellent residual activity. Because of their physical properties, most of the formulation remains on the surface of treated porous materials such as concrete, plaster, and untreated wood. In such cases, only the water penetrates the material.
  • the composition is formulated as a soluble powder.
  • Soluble powder formulations look like wettable powders. However, when mixed with water, soluble powders dissolve readily and form a true solution. After they are mixed thoroughly, no additional agitation is necessary.
  • the amount of active ingredient in soluble powders ranges from about 15 to about 95 percent by weight; in some cases more than about 50 percent. Soluble powders have all the advantages of wettable powders and none of the disadvantages, except the inhalation hazard during mixing.
  • the composition is formulated as a water-dispersible granule.
  • Water-dispersible granules also known as dry flowables, are like wettable powders, except instead of being dust-like, they are formulated as small, easily measured granules.
  • Water-dispersible granules must be mixed with water to be applied. Once in water, the granules break apart into fine particles similar to wettable powders. The formulation requires constant agitation to keep it suspended in water. The percentage of active ingredient is high, often as much as 90 percent by weight. Water-dispersible granules share many of the same advantages and disadvantages of wettable powders, except they are more easily measured and mixed. Because of low dust, they cause less inhalation hazard to the applicator during handling
  • the composition includes a bait.
  • the bait can be in any suitable form, such as a solid, paste, pellet or powdered form.
  • the bait can also be carried away by the host back to a population of said host (e.g., a colony or hive).
  • the bait can then act as a food source for other members of the colony, thus providing an effective modulating agent for a large number of hosts and potentially an entire host colony.
  • the baits can be provided in a suitable “housing” or “trap.”
  • housings and traps are commercially available and existing traps can be adapted to include the compositions described herein.
  • the housing or trap can be box-shaped for example, and can be provided in pre-formed condition or can be formed of foldable cardboard for example. Suitable materials for a housing or trap include plastics and cardboard, particularly corrugated cardboard.
  • the inside surfaces of the traps can be lined with a sticky substance in order to restrict movement of the host once inside the trap.
  • the housing or trap can contain a suitable trough inside which can hold the bait in place.
  • a trap is distinguished from a housing because the host cannot readily leave a trap following entry, whereas a housing acts as a “feeding station” which provides the host with a preferred environment in which they can feed and feel safe from predators.
  • the composition includes an attractant (e.g., a chemoattractant).
  • the attractant may attract an adult host or immature host (e.g., larva) to the vicinity of the composition.
  • Attractants include pheromones, a chemical that is secreted by an animal, especially an insect, which influences the behavior or development of others of the same species.
  • Other attractants include sugar and protein hydrolysate syrups, yeasts, and rotting meat. Attractants also can be combined with an active ingredient and sprayed onto foliage or other items in the treatment area.
  • Attractants useful in the methods and compositions described herein include, for example, eugenol, phenethyl propionate, ethyl dimethylisobutyl-cyclopropane carboxylate, propyl benszodioxancarboxylate, cis-7,8-epoxy-2-methyloctadecane, trans-8,trans-0-dodecadienol, cis-9-tetradecenal (with cis-11-hexadecenal), trans-11-tetradecenal, cis-11-hexadecenal, (Z)-11,12-hexadecadienal, cis-7-dodecenyl acetate, cis-8-dodecenyul acetate, cis-9-dodecenyl a
  • Means other than chemoattractants may also be used to attract insects, including lights in various wavelengths or colors.
  • the composition is provided in a microencapsulated formulation.
  • Microencapsulated formulations are mixed with water and sprayed in the same manner as other sprayable formulations. After spraying, the plastic coating breaks down and slowly releases the active ingredient.
  • compositions described herein may be formulated to include the modulating agent described herein and an inert carrier.
  • carrier can be a solid carrier, a liquid carrier, a gel carrier, and/or a gaseous carrier.
  • the carrier can be a seed coating.
  • the seed coating is any non-naturally occurring formulation that adheres, in whole or part, to the surface of the seed.
  • the formulation may further include an adjuvant or surfactant.
  • the formulation can also include one or more modulating agents to enlarge the action spectrum.
  • a solid carrier used for formulation includes finely-divided powder or granules of clay (e.g. kaolin clay, diatomaceous earth, bentonite, Fubasami clay, acid clay, etc.), synthetic hydrated silicon oxide, talc, ceramics, other inorganic minerals (e.g., sericite, quartz, sulfur, activated carbon, calcium carbonate, hydrated silica, etc.), a substance which can be sublimated and is in the solid form at room temperature (e.g., 2,4,6-triisopropyl-1,3,5-trioxane, naphthalene, p-dichlorobenzene, camphor, adamantan, etc.); wool; silk; cotton; hemp; pulp; synthetic resins (e.g., polyethylene resins such as low-density polyethylene, straight low-density polyethylene and high-density polyethylene; ethylene-vinyl ester copolymers such as ethylene-vinyl acetate copoly
  • a liquid carrier may include, for example, aromatic or aliphatic hydrocarbons (e.g., xylene, toluene, alkylnaphthalene, phenylxylylethane, kerosine, gas oil, hexane, cyclohexane, etc.), halogenated hydrocarbons (e.g., chlorobenzene, dichloromethane, dichloroethane, trichloroethane, etc.), alcohols (e.g., methanol, ethanol, isopropyl alcohol, butanol, hexanol, benzyl alcohol, ethylene glycol, etc.), ethers (e.g., diethyl ether, ethylene glycol dimethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, propylene glycol monomethyl ether, tetrahydrofuran, dioxane, etc.), esters (e.g.,
  • N-methylpyrrolidone alkylidene carbonates e.g., propylene carbonate, etc.
  • vegetable oil e.g., soybean oil, cottonseed oil, etc.
  • vegetable essential oils e.g., orange oil, hyssop oil, lemon oil, etc.
  • a gaseous carrier may include, for example, butane gas, flon gas, liquefied petroleum gas (LPG), dimethyl ether, and carbon dioxide gas.
  • LPG liquefied petroleum gas
  • the composition provided herein may include an adjuvant.
  • Adjuvants are chemicals that do not possess activity. Adjuvants are either pre-mixed in the formulation or added to the spray tank to improve mixing or application or to enhance performance. They are used extensively in products designed for foliar applications. Adjuvants can be used to customize the formulation to specific needs and compensate for local conditions. Adjuvants may be designed to perform specific functions, including wetting, spreading, sticking, reducing evaporation, reducing volatilization, buffering, emulsifying, dispersing, reducing spray drift, and reducing foaming. No single adjuvant can perform all these functions, but compatible adjuvants often can be combined to perform multiple functions simultaneously.
  • adjuvants included in the formulation are binders, dispersants and stabilizers, specifically, for example, casein, gelatin, polysaccharides (e.g., starch, gum arabic, cellulose derivatives, alginic acid, etc.), lignin derivatives, bentonite, sugars, synthetic water-soluble polymers (e.g., polyvinyl alcohol, polyvinylpyrrolidone, polyacrylic acid, etc.), PAP (acidic isopropyl phosphate), BHT (2,6-di-t-butyl-4-methylphenol), BHA (a mixture of 2-t-butyl-4-methoxyphenol and 3-t-butyl-4-methoxyphenol), vegetable oils, mineral oils, fatty acids and fatty acid esters.
  • binders specifically, for example, casein, gelatin, polysaccharides (e.g., starch, gum arabic, cellulose derivatives, alginic acid, etc.), lignin derivatives, bentonit
  • the composition provided herein includes a surfactant.
  • Surfactants also called wetting agents and spreaders, physically alter the surface tension of a spray droplet.
  • a spray droplet must be able to wet the foliage and spread out evenly over a leaf.
  • Surfactants enlarge the area of formulation coverage, thereby increasing the pest's exposure to the chemical.
  • Surfactants are particularly important when applying a formulation to waxy or hairy leaves. Without proper wetting and spreading, spray droplets often run off or fail to cover leaf surfaces adequately. Too much surfactant, however, can cause excessive runoff and reduce efficacy.
  • Surfactants are classified by the way they ionize or split apart into electrically charged atoms or molecules called ions.
  • a surfactant with a negative charge is anionic.
  • One with a positive charge is cationic, and one with no electrical charge is nonionic.
  • Formulation activity in the presence of a nonionic surfactant can be quite different from activity in the presence of a cationic or anionic surfactant. Selecting the wrong surfactant can reduce the efficacy of a pesticide product and injure the target plant.
  • Anionic surfactants are most effective when used with contact pesticides (pesticides that control the pest by direct contact rather than being absorbed systemically). Cationic surfactants should never be used as stand-alone surfactants because they usually are phytotoxic.
  • Nonionic surfactants often used with systemic pesticides, help pesticide sprays penetrate plant cuticles.
  • Nonionic surfactants are compatible with most pesticides, and most EPA-registered pesticides that require a surfactant recommend a nonionic type.
  • Adjuvants include, but are not limited to, stickers, extenders, plant penetrants, compatibility agents, buffers or pH modifiers, drift control additives, defoaming agents, and thickeners.
  • surfactants included in the compositions described herein are alkyl sulfate ester salts, alkyl sulfonates, alkyl aryl sulfonates, alkyl aryl ethers and polyoxyethylenated products thereof, polyethylene glycol ethers, polyvalent alcohol esters and sugar alcohol derivatives.
  • the modulating agent may be in a mixture with other active compounds, such as pesticidal agents (e.g., insecticides, sterilants, acaricides, nematicides, molluscicides, or fungicides; see, e.g., pesticides listed in table 12), attractants, growth-regulating substances, or herbicides.
  • pesticidal agents e.g., insecticides, sterilants, acaricides, nematicides, molluscicides, or fungicides; see, e.g., pesticides listed in table 12
  • attractants e.g., growth-regulating substances, or herbicides.
  • the term “pesticidal agent” refers to any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest.
  • a pesticide can be a chemical substance or biological agent used against pests including insects, pathogens, weeds, and microbes that compete with humans for food, destroy property, spread disease, or are a nuisance.
  • the term “pesticidal agent” may further encompass other bioactive molecules such as antibiotics, antivirals pesticides, antifungals, antihelminthics, nutrients, pollen, sucrose, and/or agents that stun or slow insect movement.
  • the modulating agent is applied to plants, a mixture with other known compounds, such as herbicides, fertilizers, growth regulators, safeners, semiochemicals, or else with agents for improving plant properties is also possible.
  • other known compounds such as herbicides, fertilizers, growth regulators, safeners, semiochemicals, or else with agents for improving plant properties is also possible.
  • a host described herein can be exposed to any of the compositions described herein in any suitable manner that permits delivering or administering the composition to the insect.
  • the modulating agent may be delivered either alone or in combination with other active or inactive substances and may be applied by, for example, spraying, microinjection, through plants, pouring, dipping, in the form of concentrated liquids, gels, solutions, suspensions, sprays, powders, pellets, briquettes, bricks and the like, formulated to deliver an effective concentration of the modulating agent.
  • Amounts and locations for application of the compositions described herein are generally determined by the habits of the host, the lifecycle stage at which the microorganisms of the host can be targeted by the modulating agent, the site where the application is to be made, and the physical and functional characteristics of the modulating agent.
  • the modulating agents described herein may be administered to the insect by oral ingestion, but may also be administered by means which permit penetration through the cuticle or penetration of the insect respiratory system.
  • the insect can be simply “soaked” or “sprayed” with a solution including the modulating agent.
  • the modulating agent can be linked to a food component (e.g., comestible) of the insect for ease of delivery and/or in order to increase uptake of the modulating agent by the insect.
  • Methods for oral introduction include, for example, directly mixing a modulating agent with the insects food, spraying the modulating agent in the insect's habitat or field, as well as engineered approaches in which a species that is used as food is engineered to express a modulating agent, then fed to the insect to be affected.
  • the modulating agent composition can be incorporated into, or overlaid on the top of, the insect's diet.
  • the modulating agent composition can be sprayed onto a field of crops which an insect inhabits.
  • the composition is sprayed directly onto a plant e.g., crops, by e.g., backpack spraying, aerial spraying, crop spraying/dusting etc.
  • the plant receiving the modulating agent may be at any stage of plant growth.
  • formulated modulating agents can be applied as a seed-coating or root treatment in early stages of plant growth or as a total plant treatment at later stages of the crop cycle.
  • the modulating agent may be applied as a topical agent to a plant, such that the host insect ingests or otherwise comes in contact with the plant upon interacting with the plant.
  • the modulating agent may be applied (e.g., in the soil in which a plant grows, or in the water that is used to water the plant) as a systemic agent that is absorbed and distributed through the tissues (e.g., stems or leafs) of a plant or animal host, such that an insect feeding thereon will obtain an effective dose of the modulating agent.
  • plants or food organisms may be genetically transformed to express the modulating agent such that a host feeding upon the plant or food organism will ingest the modulating agent.
  • Delayed or continuous release can also be accomplished by coating the modulating agent or a composition containing the modulating agent(s) with a dissolvable or bioerodable coating layer, such as gelatin, which coating dissolves or erodes in the environment of use, to then make the modulating agent available, or by dispersing the agent in a dissolvable or erodable matrix.
  • a dissolvable or bioerodable coating layer such as gelatin, which coating dissolves or erodes in the environment of use, to then make the modulating agent available, or by dispersing the agent in a dissolvable or erodable matrix.
  • Such continuous release and/or dispensing means devices may be advantageously employed to consistently maintain an effective concentration of one or more of the modulating agents described herein in a specific host habitat.
  • the modulating agent can also be incorporated into the medium in which the insect grows, lives, reproduces, feeds, or infests.
  • a modulating agent can be incorporated into a food container, feeding station, protective wrapping, or a hive.
  • the modulating agent may be bound to a solid support for application in powder form or in a “trap” or “feeding station.”
  • the compositions may also be bound to a solid support or encapsulated in a time-release material.
  • compositions described herein can be administered by delivering the composition to at least one habitat where a vector (e.g., a vector of an animal pathogen, e.g., a mosquito, mite, biting louse, or tick) grows, lives, reproduces, feeds, or infests.
  • a vector e.g., a vector of an animal pathogen, e.g., a mosquito, mite, biting louse, or tick
  • a vector of an animal pathogen e.g., a mosquito, mite, biting louse, or tick
  • the screening assays provided herein may be effective to identify one or more modulating agents (e.g., phage) that target symbiotic microorganisms resident in the host and thereby decrease the fitness of the host.
  • modulating agents e.g., phage
  • the identified modulating agent e.g., phage
  • the identified modulating agent may be effective to decrease the viability of pesticide- or allelochemical-degrading microorganisms (e.g., bacteria, e.g., a bacterium that degrade a pesticide listed in Table 12), thereby increasing the hosts sensitivity to a pesticide (e.g., sensitivity to a pesticide listed in Table 12) or allelochemical agent.
  • pesticide- or allelochemical-degrading microorganisms e.g., bacteria, e.g., a bacterium that degrade a pesticide listed in Table 12
  • a phage library may be screened to identify a phage that targets a specific endosymbiotic microorganism resident in a host.
  • the phage library may be provided in the form of one or more environmental samples (e.g., soil, pond sediments, or sewage water).
  • the phage library may be generated from laboratory isolates.
  • the phage library may be co-cultured with a target bacterial strain. After incubation with the bacterial strain, phage that successfully infect and lyse the target bacteria are enriched in the culture media.
  • the phage-enriched culture may be sub-cultured with additional bacteria any number of times to further enrich for phage of interest.
  • the phage may be isolated for use as a modulating agent in any of the methods or compositions described herein, wherein the phage alters the microbiota of the host in a manner that decreases host fitness.
  • Example 1 Treatment of the Aedes vexans Mosquito with an Antibiotic Solution
  • This Example demonstrates the ability to kill or decrease the fitness of the Aedes vexans mosquitoes by treatment with doxycycline, a broad spectrum antibiotic that inhibits protein production.
  • the effect of doxycycline on mosquitoes is mediated through the modulation of bacterial populations endogenous to the mosquito that are sensitive to doxycycline.
  • One targeted bacterial strain is Wolbachia.
  • PRRSV porcine reproductive and respiratory syndrome virus
  • Aedes vexans is a cosmopolitan and common pest mosquito.
  • Dirofilaria immitis dog heartworm
  • Myxomatosis deadly rabbit virus disease
  • Eastern equine encephalitis deadly horse virus disease in the USA.
  • Aedes vexans is the most common mosquito in Europe, often composing more than 80% the European mosquito community. Its abundance depends upon availability of floodwater pools. In summer, mosquito traps can collect up to 8,000 mosquitoes per trap per night.
  • Blood meals mixed with doxycycline solutions are formulated with final antibiotic concentrations of 0 (negative control), 1, 10, or 50 ⁇ g/ml in 1 mL of blood
  • Doxycycline solutions are made by dissolving doxycycline (SIGMA-ALDRICH, D9891) in sterile water. Different volumes of a doxycycline solution are added to fresh blood to total 1 mL in preparation for blood meals. The final doxycycline concentrations in the blood are approximately 0 (control solution), 1, 10 or 50 ⁇ g/ml.
  • mosquitoes For each replicate, age-matched, 2- to 3-day-old mosquitoes are offered a control or experimental blood meal from a membrane-feeding device (2 ml Eppendorf tube) covered with parafilm and kept at 37° C. Nonengorged mosquitoes are discarded. Meals are given every four days for a total of three blood meals. Between the blood meals, mosquitoes are provided with a cotton pad moistened with distilled water for oviposition. Unfed mosquitoes are not removed after the second and later blood meals. Deaths are counted daily and carcasses are removed and stored for Wolbachia analysis as described herein. At least 50 mosquitoes per concentration of doxycycline are used for each replicate. At the end of the last blood meal, mosquitoes are kept for 12 hours before dissection.
  • mosquitoes are immersed in 70% ethanol for 5 minutes then rinsed 3 times in sterile phosphate-buffered saline (PBS) to kill and remove surface bacteria, thus minimizing sample contamination with cuticle bacteria during dissection.
  • PBS sterile phosphate-buffered saline
  • the midgut of each mosquito (control and doxycycline treatment) is removed and frozen immediately on dry ice and stored at 20° C. until processing. Midguts are only excluded from analysis if they burst and a substantial amount of the gut content is lost.
  • Samples are homogenized in phenol-chloroform in a Precellys 24 homogenizer (Bertin) using 0.5 mm wide glass beads (Bertin) for 30 seconds at 6800 rpm and deoxy-ribonucleic acid (DNA) is extracted with phenol-chloroform.
  • the 16S ribosomal DNA (rDNA) is used for Wolbachia quantification and is shown as a ratio of the Aedes housekeeping gene 40S ribosomal protein S7 (Vector-Base gene ID AAEL009496).
  • Primer sequences for Wolbachia are: forward primer 5′-TCAGCCACACTGGAACTGAG-3′ (SEQ ID NO: 221) and reverse primer 5′-TAACGCTAGCCCTCTCCGTA-3′ (SEQ ID NO: 222), and for S7: forward 5′-AAGGTCGACACCTTCACGTC-3′ (SEQ ID NO: 223) and reverse 5′-CCGTTTGGTGAGGGTCTTTA-3′ (SEQ ID NO: 224).
  • Quantitative polymerase chain reaction qPCR is performed on a 7500 Fast Real-Time thermocycler (Applied Biosystems) using the SYBR Premix Ex Taq kit (Takara), following the manufacturer's instructions. Doxycycline treated mosquitoes show a reduction of Wolbachia specific genes.
  • the survival rates of mosquitoes treated with doxycycline solution are compared to the mosquitoes treated with the negative control.
  • the survival rate of mosquitoes treated with doxycycline solution is decreased compared to the control.
  • This Example demonstrates the ability to kill or decrease the fitness of the Anopheles coluzzii mosquitoes and decrease the transmission rate of parasites by treatment with azithromycin, relatively broad but shallow antibacterial activity. It inhibits some Gram-positive bacteria, some Gram-negative bacteria, and many atypical bacteria.
  • the effect of azithromycin on mosquitoes is mediated through the modulation of bacterial populations endogenous to the mosquito that are sensitive to azithromycin.
  • One targeted bacterial strain is Asaia.
  • the mosquito has been described as the most dangerous animal in the world and malaria is one mosquito-borne disease that detrimentally impacts humans. There are about 3,500 mosquito species and those that transmit malaria all belong to a sub-set called the Anopheles . Approximately 40 Anopheles species are able to transmit malaria that significantly impacts human health.
  • Blood meals mixed with azithromycin solutions are formulated with final antibiotic concentrations of 0 (negative control), 0.1, 1, or 5 ⁇ g/ml in 1 mL of blood.
  • mosquitoes are grown in a lab environment and medium. Experiments are performed with female mosquitoes from an Anopheles coluzzii Ngousso colony, originally established from field mosquitoes collected in Cameroon, maintained on human blood and fed as adults with, 5% fructose. Larvae are fed tetramin fish food. Temperature is maintained at 28° C. ( ⁇ 1° C.), 70-80% humidity on a 12 hr light/dark cycle.
  • Plasmodium falciparum NF54 gametocytes are cultured in RPMI medium (GIBCO) including 300 mg. L-1 L-glutamine supplemented with, 50 mg/L hypoxanthine, 25 mM HEPES plus 10% heat-inactivated human serum without antibiotics. Two 25-mL cultures are started 17 and 14 days before the infection at 0.5% parasitemia in 6% v/v washed 0+red blood cells (RBCs). Media is changed daily. Before mosquito infection, centrifuged RBCs are pooled and supplemented with 20% fresh washed RBCs and human serum (2:3 v/v ratio between RBCs and serum). Mosquitoes are offered a blood meal from a membrane-feeding device (2 ml Eppendorf tube) covered with Parafilm and kept at 37° C.
  • a membrane-feeding device (2 ml Eppendorf tube) covered with Parafilm and kept at 37° C.
  • Azithromycin solutions are made by dissolving azithromycin (SIGMA-ALDRICH, PZ0007) in DMSO. Different volumes of azithromycin solution are added to fresh blood to total 1 mL in preparation for blood meals. The final azithromycin concentrations in the blood are 0 (just solvent as control solution), 0.1, 1, or 5 ⁇ g/ml.
  • mosquitoes per condition For each Plasmodium infection, at least 100 age-matched, 2- to 3-day-old, mosquitoes per condition are offered a control or experimental blood meal from a membrane-feeding device (2 ml Eppendorf tube) covered with parafilm and kept at 37° C. and nonengorged mosquitoes are removed. Meals are given every four days for a total of three blood meals. Between the blood meals, mosquitoes are provided with a cotton pad moistened with distilled water for oviposition. Unfed mosquitoes are not removed after the second and later blood meals. Deaths are counted daily and carcasses are removed and stored for Asaia analysis as described herein. At least 50 mosquitoes per concentration of azithromycin are used for each replicate. At the end of the last blood meal, mosquitoes are kept for 12 hours before dissection.
  • mosquitoes are immersed in 70% ethanol for 5 minutes then rinsed 3 times in sterile phosphate-buffered saline (PBS) to kill and remove surface bacteria, thus minimizing sample contamination with cuticle bacteria during dissection.
  • PBS sterile phosphate-buffered saline
  • the midgut of each mosquitoe (control and azithromycin treatment) is removed and frozen immediately on dry ice and stored at 20° C. until processing. Midguts are only excluded from analysis if they burst and a substantial amount of the gut content is lost.
  • Samples are homogenized in phenol-chloroform in a Precellys 24 homogenizer (Bertin) using 0.5 mm-wide glass beads (Bertin) for 30 seconds at 6800 rpm and deoxy-ribonucleic acid (DNA) is extracted with phenol-chloroform.
  • the 16S ribosomal DNA (rDNA) is used for Asaia quantification and is shown as a ratio of the Anopheles housekeeping gene 40S ribosomal protein S7 (Vector-Base gene ID AGAP010592).
  • Primer sequences for Asaia are: forward 5′-GTGCCGATCTCTAAAAGCCGTCTCA-3′ (SEQ ID NO:248) and reverse 5′-TTCGCTCACCGGCTTCGGGT-3′ (SEQ ID NO: 249), and for S7: forward 5′-GTGCGCGAGTTGGAGAAGA-3′ (SEQ ID NO: 250) and reverse 5′-ATCGGTTTGGGCAGAATGC-3′ (SEQ ID NO: 251).
  • Quantitative polymerase chain reaction qPCR is performed on a 7500 Fast Real-Time thermocycler (Applied Biosystems) using the SYBR Premix Ex Taq kit (Takara), following the manufacturer's instructions. Azithromycin treated mosquitoes show a reduction of Asaia specific genes.
  • the survival rates of mosquitoes treated with azithromycin are compared to the mosquitoes treated with the negative control.
  • the survival rate of mosquitoes treated with azithromycin solution is decreased compared to the control.
  • Example 3 Treatment of the Dermacentor andersoni , with an Antibiotic Solution
  • This Example demonstrates the ability to kill or decrease the fitness of the tick, Dermacentor andersoni , by treatment with Liquamycin LA-200 oxytetracycline, a broad spectrum antibiotic commonly used to treat a broad range of bacterial infections in cattle.
  • Liquamycin LA-200 oxytetracycline a broad spectrum antibiotic commonly used to treat a broad range of bacterial infections in cattle.
  • the effect of Liquamycin LA-200 oxytetracycline on ticks is mediated through the modulation of bacterial populations endogenous to the tick that are sensitive to Liquamycin LA-200 oxytetracycline.
  • One targeted bacterial strain is Rickettsia.
  • Ticks are obligate hematophagous arthropods that feed on vertebrates and cause great economic losses to livestock due to their ability to transmit diseases to humans and animals.
  • ticks transmit pathogens throughout all continents and are labeled as principle vectors of zoonotic pathogens.
  • 415 new tick-borne bacterial pathogens have been discovered since Lyme disease was characterized in 1982.
  • Dermacentor andersoni the Rocky Mountain wood tick, has been labeled a ‘veritable Pandora's box of disease-producing agents’ and transmits several pathogens, including Rickettsia rickettsii and Francisella tularensis .
  • Therapeutic design A therapeutic dose (11 mg/kg of body weight) of Liquamycin LA-200 oxytetracycline injection on ⁇ 4, ⁇ 1, +3 and +5 days post application of ticks.
  • a cohort of F1 ticks are fed on either antibiotic-treated calves or untreated calves (control).
  • the antibiotic-treated calves received a therapeutic dose (11 mg/kg of body weight) of Liquamycin LA-200 oxytetracycline injections on ⁇ 4, ⁇ 1, +3 and +5 days post application of ticks, whereas untreated calves did not receive any injections (untreated control).
  • Females ticks are allowed to oviposit to continue a second generation of the untreated and treated ticks (F2 generation).
  • the F2 treated generation arose from F1 adults that are exposed to antibiotics.
  • the F2 ticks are not subjected to antibiotics.
  • F1 and F2 generation adult male ticks are fed for 7 days and then dissected within 24 h. Deaths are counted daily and ticks are removed and stored for Rickettsia analysis as described herein. Before dissection, the ticks are surface sterilized and all dissection tools are sterilized between each dissection. Tick MG and SG are dissected and pooled in groups of 30 with three biological replicates. Tissues are stored in Cell Lysis Solution (Qiagen, Valencia, Calif., USA) and Proteinase K (1.25 mg/ml). Genomic DNA is isolated using the PureGene Extraction kit (Qiagen) according to the manufacturer's specifications.
  • rickA gene copy numbers are measured using SYBR Green quantitative PCR of non-treated and antibiotic treated in F1 and F2 ticks.
  • the quantity of Rickettsia is determined using Forward (5′-TACGCCACTCCCTGTGT CA-3′; SEQ ID NO: 225) and Reverse (5′-GATGTAACGGTATTAC ACCAACAG-3′; SEQ ID NO: 226) primers.
  • the bacterial quantity is measured in F1 and F2 MG and SG of the pooled samples.
  • Quantitative polymerase chain reaction qPCR is performed on a 7500 Fast Real-Time thermocycler (Applied Biosystems) using the SYBR Premix Ex Taq kit (Takara), following the manufacturer's instructions. Liquamycin LA-200 oxytetracycline treated ticks show a reduction of Rickettsia specific genes.
  • the survival rates of ticks treated with antibiotic solution are compared to the ticks untreated.
  • the survival rate of ticks treated with Liquamycin LA-200 oxytetracycline solution is decreased compared to the untreated.
  • This Example demonstrates the ability to kill or decrease the fitness of mites by treating them with an antibiotic solution.
  • This Example demonstrates that the effect of oxytetracycline on mites is mediated through the modulation of bacterial populations endogenous, such as Bacillus , to the mites that are sensitive to oxytetracycline.
  • Sarcoptic mange is caused by mites that infest animals by burrowing deeply into the skin and laying eggs inside the burrows. The eggs hatch into the larval stage. The larval mites then leave the burrows, move up to the skin surface, and begin forming new burrows in healthy skin tissue. Development from egg to adult is completed in about 2 weeks. The lesions resulting from infestations by these mites are a consequence of the reaction of the animals' immune system to the mites' presence. Because of the intensity of the animals' immunological response, it takes only a small number of mites to produce widespread lesions and generalized dermatitis.
  • mites can be killed with chemically synthesized miticides
  • these types of chemicals must sprayed on every animal in the herd with high-pressure hydraulic spray equipment to ensure penetration by the spray into the skin.
  • these types of chemical pesticides may have detrimental ecological and/or agricultural effects.
  • Oxytetracycline solution is formulated with 0 (negative control), 1, 10, or 50 ⁇ g/ml in 10 mL of sterile water with 0.5% sucrose and essential amino acids.
  • the brood mites are collected from mite-infested pigs. Skin samples are collected by gently scraping and lifting off encrusted areas from the inner ear area of the pig with a sharpened teaspoon and subsequently examined for mites.
  • Mites are grouped per age and assayed separately. The age is determined based on the morphology and pigmentation of the larva or the pupa as follows: mites collected from spinning larvae that are small enough to move around are grouped into Group 1; mites collected from stretched larvae, which are too big to lay in the cell and start to stretch upright with their mouth in the direction of the cell opening, are grouped into Group 2; and mites collected from pupae are grouped into Group 3. Mites are stored on their host larva or pupa in glass Petri dishes until 50 units are collected. This ensures their feeding routine and physiological status remains unchanged. To prevent mites from straying from their host larva or pupa or climbing onto one another, only hosts at the same development stage are kept in the same dish.
  • the equipment a stainless steel ring (56 mm inner diameter, 2-3 mm height) and 2 glass circles (62 mm diameter)—is cleaned with acetone and hexane or pentane to form the testing arena.
  • the oxytetracycline solutions and control solution are applied on the equipment by spraying the glass disks and ring of the arena homogeneously.
  • a reservoir is loaded with 1 ml of the solutions; the distance of the sprayed surface from the bottom end of the tube is set at 11 mm and a 0.0275 inch nozzle is used.
  • the pressure is adjusted (usually in the range 350-500 hPa) until the amount of solution deposited is 1 ⁇ 0.05 mg/cm2.
  • the antibiotic solutions are poured in their respective dishes, covering the whole bottom of the dishes, and residual liquid is evaporated under a fume hood.
  • the ring is placed between the glass circles to build a cage.
  • the cages are used within 60 hr of preparation, for not more than three assays, in order to control the exposure of mites to antibiotic solutions. 10 to 15 mites are introduced in this cage and the equipment pieces are bound together with droplets of melted wax. Mites collected from spinning larvae, stretched larvae, white eyed pupae and dark eyed with white and pale body are used.
  • mites are transferred into a clean glass Petri dish (60 mm diameter) with two or three white eye pupae (4-5 days after capping) to feed on.
  • the mites are observed under a dissecting microscope at 4 hr, 24 hr, and 48 hr after being treated with the antibiotic or the control solutions, and classified according to the following categories:
  • a sterile toothpick or needle is used to stimulate the mites by touching their legs. New tooth picks or sterile needles are used for stimulating each group to avoid contamination between mite groups.
  • the assays are carried out at 32.5° C. and 60-70% relative humidity. If the mortality in the controls exceeds 30%, the replicate is excluded. Each experiment is replicated with four series of cages.
  • the status of Bacillus in mite groups is assessed by PCR.
  • Total DNA is isolated from control (non-oxytetracycline treated) and oxytetracyline treated individuals (whole body) using a DNA Kit (OMEGA, Bio-tek) according to the manufacturer's protocol.
  • the primers for Bacillus forward primer 5′-GAGGTAGACGAAGCGACCTG-3′ (SEQ ID NO: 233) and reverse primer 5′-TTCCCTCACGGTACTGGTTC-3′ (SEQ ID NO: 234), are designed based on 23S-5S rRNA sequences obtained from the Bacillus genome (Accession Number: AP007209.1) (Takeno et al., J. Bacteriol.
  • PCR amplification cycles included an initial denaturation step at 95° C. for 5 min, 35 cycles of 95° C. for 1 min, 59° C. for 1 min, and 72° C. for 2 min, and a final extension step of 5 min at 72° C.
  • Amplification products from oxytetracyline treated and control samples are analyzed on 1% agarose gels, stained with SYBR safe, and visualized using an imaging System.
  • the survival rates of mites treated with an oxytetracyline solution are compared to the Varroa mites treated with the negative control.
  • the survival rate and the mobility of mites treated with oxytetracyline solution are expected to be decreased compared to the control.
  • This Example demonstrates the acquisition of a phage collection from environmental samples.
  • Phage library collection having the following phage families: Myoviridae, Siphoviridae, Podoviridae, Lipothrixviridae, Rudiviridae, Ampullaviridae, Bicaudaviridae, Clavaviridae, Corticoviridae, Cystoviridae, Fuselloviridae, Gluboloviridae, Guttaviridae, Inoviridae, Leviviridae, Microviridae, Plasmaviridae, Tectiviridae
  • This Example demonstrates the isolation, purification, and identification of single target specific phages from a heterogeneous phage library.
  • 20-30 ml of the phage library described in Example 5 is diluted to a volume of 30-40 ml with LB-broth.
  • the target bacterial strain e.g., Buchnera
  • the target bacterial strain is added (50-200 ⁇ l overnight culture grown in LB-broth) to enrich phages that target this specific bacterial strain in the culture.
  • This culture is incubated overnight at +37° C., shaken at 230 rpm.
  • Bacteria from this enrichment culture are removed by centrifugation (3000-6000 g in Megafuge 1.0R, Heraeus, or in Eppendorf centrifuge 5702 R, 15-20 min, +4° C.) and filtered (0.2 or 0.45 ⁇ m filter).
  • 2.5 ml of the bacteria free culture is added to 2.5 ml of LB-broth and 50-100 ⁇ l of the target bacteria to enrich the phages.
  • the enrichment culture is grown overnight as above.
  • a sample from this enrichment culture is centrifuged at 13,000 g for 15 min at room temperature and 10 ⁇ l of the supernatant is plated on a LB-agar containing petri dish along with 100-300 ⁇ l of the target bacteria and 3 ml of melted 0.7% soft-agar. The plates are incubated overnight at +37° C.
  • Each of the plaques observed on the bacterial lawn are picked and transferred into 500 ⁇ l of LB-broth.
  • a sample from this plaque-stock is further plated on the target bacteria. Plaque-purification is performed three times for all discovered phages in order to isolate a single homogenous phage from the heterogeneous phage mix.
  • Lysates from plates with high-titer phages are prepared by harvesting overlay plates of a host bacterium strain exhibiting confluent lysis. After being flooded with, 5 ml of buffer, the soft agar overlay is macerated, clarified by centrifugation, and filter sterilized. The resulting lysates are stored at 4° C. High-titer phage lysates are further purified by isopycnic CsCl centrifugation, as described in (Summer et al., J. Bacteriol. 192:179-190, 2010).
  • DNA is isolated from CsCl-purified phage suspensions as described in (Summer, Methods Mol. Biol. 502:27-46, 2009). An individual isolated phage is sequenced as part of two pools of phage genomes by using a 454 pyrosequencing method. Phage genomic DNA is mixed in equimolar amounts to a final concentration of about 100 ng/L. The pooled DNA is sheared, ligated with a multiplex identifier (MID) tag specific for each of the pools, and sequenced by pyrosequencing using a full-plate reaction on a Roche FLX Titanium sequencer according to the manufacturer's protocols. The pooled phage DNA is present in two sequencing reactions.
  • MID multiplex identifier
  • the trimmed FLX Titanium flow-gram output corresponding to each of the pools is assembled individually by using Newbler Assembler version 2.5.3 (454 Life Sciences), by adjusting the settings to include only reads containing a single MID per assembly.
  • the identity of individual contigs is determined by PCR using primers generated against contig sequences and individual phage genomic DNA preparations as the template.
  • Sequencher 4.8 (Gene Codes Corporation) is used for sequence assembly and editing. Phage chromosomal end structures are determined experimentally.
  • Cohesive (cos) ends for phages are determined by sequencing off the ends of the phage genome and sequencing the PCR products derived by amplification through the ligated junction of circularized genomic DNA, as described in (Summer, Methods Mol. Biol.
  • Protein-coding regions are initially predicted using GeneMark.hmm (Lukashin et al. Nucleic Acids Res. 26:1107-1115, 1998), refined through manual analysis in Artemis (Rutherford et al., Bioinformatics 16:944-945, 2000.), and analyzed through the use of BLAST (E value cutoff of 0.005) (Camacho et al., BMC Bioinformatics 10:421, 2009). Proteins of particular interest are additionally analyzed by InterProScan (Hunter et al., Nucleic Acids Res. 40:D306-D312, 2012).
  • Electron microscopy of CsCl-purified phage (>1 ⁇ 10 ⁇ circumflex over ( ) ⁇ 11 PFU/ml) that lysed the endosymbiotic bacteria, Buchnera , is performed by diluting stock with the tryptic soy broth buffer. Phages are applied onto thin 400-mesh carbon-coated Formvar grids, stained with 2% (wt/vol) uranyl acetate, and air dried. Specimens are observed on a JEOL 1200EX transmission electron microscope operating at an acceleration voltage of 100 kV. Five virions of each phage are measured to calculate mean values and standard deviations for dimensions of capsid and tail, where appropriate.
  • This Example demonstrates the ability to kill or decrease the fitness of aphids by treating them with a phage solution.
  • This Example demonstrates that the effect of phage on aphids is mediated through the modulation of bacterial populations endogenous to the aphid that are sensitive to phages.
  • One targeted bacterial strain is Buchnera with the phage identified in Example 6.
  • Aphids are representative species for testing microbiota modulating agents and effects on fitness of the aphids.
  • Phage solutions are formulated with 0 (negative control), 10 2 , 10 5 , or 10 8 plaque-forming units (pfu)/ml phage from Example 6 in 10 mL of sterile water with 0.5% sucrose and essential amino acids.
  • aphids are grown in a lab environment and medium.
  • fava bean plants are grown in a mixture of vermiculite and perlite at 24° C. with 16 h of light and 8 h of darkness.
  • 5-10 adults from different plants are distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • second and third instar aphids are collected from healthy plants and divided into treatments so that each treatment receives approximately the same number of individuals from each of the collection plants.
  • Phage solutions are prepared as described herein. Wells of a 96-well plate are filled with 200 ⁇ l of artificial aphid diet (Febvay et al., Canadian Journal of Zoology 66(11):2449-2453, 1988) and the plate is covered with parafilm to make a feeding sachet. Artificial diet is either mixed with sterile water and with 0.5% sucrose and essential amino acids as a negative control or phage solutions with varying concentrations of phages. Phage solutions are mixed with artificial diet to get final concentrations of phages between 10 2 to 10 8 (pfu)/ml.
  • aphids For each replicate treatment, 30-50 second and third instar aphids are placed individually in wells of a 96-well plate and a feeding sachet plate is inverted above them, allowing the insects to feed through the parafilm and keeping them restricted to individual wells. Experimental aphids are kept under the same environmental conditions as aphid colonies. After the aphids are fed for 24 hr, the feeding sachet is replaced with a new one containing sterile artificial diet and a new sterile sachet is provided every 24 h for 4 days. At the time that the sachet is replaced, aphids are also checked for mortality.
  • An aphid is counted as dead if it had turned brown or is at the bottom of the well and does not move during the observation. If an aphid is on the parafilm of the feeding sachet but not moving, it is assumed to be feeding and alive.
  • the primers for Buchnera forward primer 5′-GTCGGCTCATCACATCC-3′ (SEQ ID NO: 235) and reverse primer 5′-TTCCGTCTGTATTATCTCCT-3′ (SEQ ID NO: 236), are designed based on 23S-5S rRNA sequences obtained from the Buchnera genome (Accession Number: GCA_000009605.1) (Shigenobu et al., Nature 407:81-86, 2000) using Primer 5.0 software (Primer-E Ltd., Madison, UK).
  • the PCR amplification cycles included an initial denaturation step at 95° C. for 5 min, 35 cycles of 95° C. for 30 s, 55° C. for 30 s, and 72° C.
  • Amplification products from rifampicin treated and control samples are analyzed on 1% agarose gels, stained with SYBR safe, and visualized using an imaging System. Phage treated aphids show a reduction of Buchnera specific genes.
  • the survival rates of aphids treated with Buchnera specific phages are compared to the aphids treated with the negative control.
  • the survival rate of aphids treated with Buchnera specific phages is decreased as compared to the control treated aphids.
  • This Example demonstrates the production and purification of colA bacteriocin.
  • DNA is generated by PCR with specific primers with upstream (NdeI) and downstream (XhoI) restriction sites.
  • Forward primer GTATCTATTCCCGTCTACGAACATATGGAATTCC SEQ ID NO: 238) and reverse primer CCGCTCGAGCCATCTGACACTTCCTCCAA (SEQ ID NO: 239).
  • Purified PCR fragments (Nucleospin Extract II-Macherey Nagel) are digested with NdeI or XhoI and then the fragments are ligated.
  • the ligated DNA fragment is cloned into per2.1 (GenBank database accession number EY122872) vector (Anselme et al., BMC Biol. 6:43, 2008). The nucleotide sequence is systematically checked (Cogenics).
  • the plasmid with colA sequence is expressed in BL21 (DE3)/pLys.
  • Bacteria are grown in LB broth at 30° C. At an OD600 of 0.9, isopropyl ⁇ -D-1-thiogalactopyranoside (IPTG) is added to a final concentration of 1 mM and cells were grown for 6 h.
  • IPTG isopropyl ⁇ -D-1-thiogalactopyranoside
  • Bacteria are lysed by sonication in 100 mM NaCL, 1% Triton X-100, 100 mM Tris-base pH 9.5, and proteins are loaded onto a HisTrap HP column (GE Healthcare). The column is washed successively with 100 mM NaCl, 100 mM Tris-HCl pH 6.8, and PBS. Elution is performed with 0.3M imidazol in PBS.
  • Desalting PD-10 columns (GE Healthcare) are used to eliminate imidazol and PBS solubilized
  • Example 9 Treatment of Aphids with a Solution of colA Bacteriocin
  • This Example demonstrates the ability to kill or decrease the fitness of aphids by treating them with a bacteriocin solution.
  • This Example demonstrates that the effect of bacteriocins on aphids is mediated through the modulation of bacterial populations endogenous to the aphid that are sensitive to ColA bacteriocin.
  • One targeted bacterial strain is Buchnera with the bacteriocin produced in Example 8.
  • ColA solutions are formulated with 0 (negative control), 0.6, 1, 50 or 100 mg/ml of ColA from Example 8 in 10 mL of sterile water with 0.5% sucrose and essential amino acids.
  • aphids are grown in a lab environment and medium.
  • plants are grown in a mixture of vermiculite and perlite and are infested with aphids.
  • E. balteatus larvae are obtained from a mass production; the hoverflies are reared with sugar, pollen and water; and the oviposition is induced by the introduction of infested host plants in the rearing cage during 3 h.
  • the complete life cycle takes place on the host plants that are daily re-infested with aphids.
  • Wells of a 96-well plate are filled with 200 ⁇ l of artificial aphid diet (Febvay et al., Canadian Journal of Zoology 66(11):2449-2453, 1988) and the plate is covered with parafilm to make a feeding sachet.
  • Artificial diet is either mixed with the solution of sterile water with 0.5% sucrose and essential amino acids as a negative control or ColA solutions with varying concentrations of ColA.
  • ColA solutions are mixed with artificial diet to obtain final concentrations between 0.6 to 100 mg/ml.
  • aphids For each replicate treatment, 30-50 second and third instar aphids are placed individually in wells of a 96-well plate and a feeding sachet plate is inverted above them, allowing the insects to feed through the parafilm and keeping them restricted to individual wells. Experimental aphids are kept under the same environmental conditions as aphid colonies. After the aphids are fed for 24 hr, the feeding sachet is replaced with a new one containing sterile artificial diet and a new sterile sachet is provided every 24 h for 4 days. At the time that the sachet is replaced, aphids are also checked for mortality.
  • An aphid is counted as dead if it had turned brown or is at the bottom of the well and does not move during the observation. If an aphid is on the parafilm of the feeding sachet but not moving, it is assumed to be feeding and alive.
  • the status of Buchnera in aphid samples is assessed by PCR. Aphids adults from the negative control and phage treated are first surface-sterilized with 70% ethanol for 1 min, 10% bleach for 1 min and three washes of ultrapure water for 1 min. Total DNA is extracted from each individual (whole body) using an Insect DNA Kit (OMEGA, Bio-tek) according to the manufacturer's protocol.
  • OEGA Insect DNA Kit
  • the primers for Buchnera forward primer 5′-GTCGGCTCATCACATCC-3′ (SEQ ID NO: 235) and reverse primer 5′-TTCCGTCTGTATTATCTCCT-3′ (SEQ ID NO: 236), are designed based on 23S-5S rRNA sequences obtained from the Buchnera genome (Accession Number: GCA_000009605.1) (Shigenobu, et al., Nature 200.407, 81-86) using Primer 5.0 software (Primer-E Ltd., Madison, UK).
  • the PCR amplification cycles included an initial denaturation step at 95° C. for 5 min, 35 cycles of 95° C. for 30 s, 55° C. for 30 s, and 72° C.
  • Amplification products from rifampicin treated and control samples are analyzed on 1% agarose gels, stained with SYBR safe, and visualized using an imaging System. ColA treated aphids show a reduction of Buchnera specific genes.
  • the survival rates of aphids treated with Buchnera specific ColA bacteriocin are compared to the aphids treated with the negative control.
  • the survival rate of aphids treated with Buchnera specific ColA bacteriocin is decreased as compared to the control treated aphids.
  • This Example demonstrates the ability to kill or decrease the fitness of aphids by treating them with rifampicin, a narrow spectrum antibiotic that inhibits DNA-dependent RNA synthesis by inhibiting a bacterial RNA polymerase.
  • This Example demonstrates that the effect of rifampicin on aphids is mediated through the modulation of bacterial populations endogenous to the aphid that are sensitive to rifampicin.
  • One targeted bacterial strain is Buchnera.
  • the antibiotic solutions are formulated with 0 (negative control), 1, 10, or 50 ⁇ g/ml of rifampicin in 10 mL of sterile water with 0.5% sucrose and essential amino acids.
  • aphids are grown in a lab environment and medium.
  • fava bean plants are grown in a mixture of vermiculite and perlite at 24° C. with 16 h of light and 8 h of darkness.
  • 5-10 adults from different plants are distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • second and third instar aphids are collected from healthy plants and divided into treatments so that each treatment receives approximately the same number of individuals from each of the collection plants.
  • Rifampicin solutions are made by dissolving rifampicin (SIGMA-ALDRICH, 557303) in sterile water with 0.5% sucrose and essential aminoacids.
  • Wells of a 96-well plate are filled with 200 ⁇ l of artificial aphid diet (Febvay et al., Canadian Journal of Zoology 66(11):2449-2453, 1988) and the plate is covered with parafilm to make a feeding sachet.
  • Artificial diet is either mixed with sterile water and with 0.5% sucrose and essential aminoacids as a negative control or a rifampicin solution with one of the concentrations of rifampicin.
  • Rifampicin solutions are mixed with artificial diet to get final concentrations of the antibiotic between 1 and 50 ⁇ g/mL.
  • aphids For each replicate treatment, 30-50 second and third instar aphids are placed individually in wells of a 96-well plate and a feeding sachet plate is inverted above them, allowing the insects to feed through the parafilm and keeping them restricted to individual wells. Experimental aphids are kept under the same environmental conditions as aphid colonies. After the aphids are fed for 24 hr, the feeding sachet is replaced with a new one containing sterile artificial diet and a new sterile sachet is provided every 24 h for four days. At the time that the sachet is replaced, aphids are also checked for mortality.
  • An aphid is counted as dead if it had turned brown or is at the bottom of the well and does not move during the observation. If an aphid is on the parafilm of the feeding sachet but not moving, it is assumed to be feeding and alive.
  • the primers for Buchnera forward primer 5′-GTCGGCTCATCACATCC-3′ (SEQ ID NO: 235) and reverse primer 5′-TTCCGTCTGTATTATCTCCT-3′ (SEQ ID NO: 236), are designed based on 23S-5S rRNA sequences obtained from the Buchnera genome (Accession Number: GCA_000009605.1) (Shigenobu et al., Nature 407:81-86, 2000) using Primer 5.0 software (Primer-E Ltd., Madison, UK).
  • the PCR amplification cycles included an initial denaturation step at 95° C. for 5 min, 35 cycles of 95° C. for 30 s, 55° C. for 30 s, and 72° C.
  • the survival rates of aphids treated with rifampicin solution are compared to the aphids treated with the negative control.
  • the survival rate of aphids treated with rifampicin solution is decreased compared to the control.
  • a HTS to identify inhibitors of targeted bacterial strains uses sucrose fermentation in pH-MMSuc medium (Ymele-Leki et al., PLoS ONE 7(2):e31307, 2012) to decrease the pH of the medium. pH indicators in the medium monitor medium acidification spectrophotometrically through a change in absorbance at 615 nm (A615).
  • a target bacterial strain, Buchnera derived from a glycerol stock, is plated on an LB-agar plate and incubated overnight at 37° C. A loopful of cells is harvested, washed three times with PBS, and then resuspended in PBS at an optical density of 0.015.
  • This step is automated and validated in the 384-well plate format using an EnVisionTM multi-well spectrophotometer to test all fractions from the library. Fractions that demonstrate delayed medium acidification by sucrose fermentation and inhibited cell growth are selected for further purification and identification.
  • Example 11 demonstrates the isolation and identification of an isolate from the fraction described in Example 11 that blocks sucrose fermentation and inhibits cell growth of Buchnera.
  • Fraction II is separated on an Agilent 1100 series HPLC with a preparative Phenyl-hexyl column (Phenomenex, Luna, 25 cm610 mm, 5 mm particle size) using an elution buffer with 20% acetonitrile/water with 0.1% formic acid at a flow rate of 2 mL/min for 50 minutes. This yields multiple compounds at different elution times.
  • Spectra for each compound is obtained on an Alpha FT-IR mass spectrometer (Bruker), an UltrospecTM 5300 pro UV/Visible Spectrophotometer (Amersham Biosciences), and an INOVA 600 MHz nuclear magnetic resonance spectrometer (Varian).
  • Example 13 Treatment of Aphids with a Solution of a Buchnera Specific Molecule
  • This Example demonstrates the ability to kill or decrease the fitness of aphids by treating them with one of the compounds identified in Example 12 through the modulation of bacterial populations endogenous to the aphid that are sensitive to this compound.
  • One targeted bacterial strain is Buchnera.
  • Each compound from Example 12 is formulated at 0 (negative control), 0.6, 1, 20 or 80 ⁇ g/ml in 10 mL of sterile water with 0.5% sucrose and essential amino acids.
  • aphids are grown in a lab environment and medium.
  • fava bean plants are grown in a mixture of vermiculite and perlite at 24° C. with 16 h of light and 8 h of darkness.
  • 5-10 adults from different plants are distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • second and third instar aphids are collected from healthy plants and divided into treatments so that each treatment receives approximately the same number of individuals from each of the collection plants.
  • Wells of a 96-well plate are filled with 200 ⁇ l of artificial aphid diet (Febvay et al., Canadian Journal of Zoology 66(11):2449-2453, 1988) and the plate is covered with parafilm to make a feeding sachet.
  • Artificial diet is either mixed with sterile water with 0.5% sucrose and essential amino acids as a negative control or solutions with varying concentrations of the compound.
  • aphids For each replicate treatment, 30-50 second and third instar aphids are placed individually in wells of a 96-well plate and a feeding sachet plate is inverted above them, allowing the insects to feed through the parafilm and keeping them restricted to individual wells. Experimental aphids are kept under the same environmental conditions as aphid colonies. After the aphids are fed for 24 hr, the feeding sachet is replaced with a new one containing sterile artificial diet and a new sterile sachet is provided every 24 h for 4 days. At the time that the sachet is replaced, aphids are also checked for mortality.
  • An aphid is counted as dead if it had turned brown or is at the bottom of the well and does not move during the observation. If an aphid is on the parafilm of the feeding sachet but not moving, it is assumed to be feeding and alive.
  • the primers for Buchnera forward primer 5′-GTCGGCTCATCACATCC-3′ (SEQ ID NO: 235) and reverse primer 5′-TTCCGTCTGTATTATCTCCT-3′ (SEQ ID NO: 236), are designed based on 23S-5S rRNA sequences obtained from the Buchnera genome (Accession Number: GCA_000009605.1) (Shigenobu et al., Nature 407:81-86, 2000) using Primer 5.0 software (Primer-E Ltd., Madison, UK).
  • the PCR amplification cycles included an initial denaturation step at 95° C. for 5 min, 35 cycles of 95° C. for 30 s, 55° C. for 30 s, and 72° C.
  • Amplification products from compound 1 treated and control samples are analyzed on 1% agarose gels, stained with SYBR safe, and visualized using an imaging System. Reduction of Buchnera specific genes indicates antimicrobial activity of compound 1.
  • the survival rate of aphids treated with the compound is compared to the aphids treated with the negative control. A decrease in the survival rate of aphids treated with the compound is expected to indicate antimicrobial activity of the compound.
  • This Example demonstrates the treatment of aphids with rifampicin, a narrow spectrum antibiotic that inhibits DNA-dependent RNA synthesis by inhibiting a bacterial RNA polymerase.
  • This Example demonstrates that the effect of rifampicin on a model insect species, aphids, was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to rifampicin.
  • One targeted bacterial strain is Buchnera.
  • the antibiotic solution was formulated according to the means of delivery, as follows ( FIG. 1A-1G ):
  • Leaf coating 100 ⁇ l of 0.025% nonionic organosilicone surfactant solvent Silwet L-77 in water (negative control), or 100 ⁇ l of 50 ⁇ g/ml of rifampicin formulated in solvent solution was applied directly to the leaf surface and allowed to dry.
  • injection solutions were either 0.025% nonionic organosilicone surfactant solvent Silwet L-77 in water (negative control), or 50 ⁇ g/ml of rifampicin formulated in solvent solution.
  • Topical delivery 100 ⁇ l of 0.025% nonionic organosilicone surfactant solvent Silwet L-77 (negative control), or 50 ⁇ g/ml of rifampicin formulated in solvent solution were sprayed using a 30 mL spray bottle.
  • Leaf injection method A Leaf perfusion and cutting: leaves were injected with approximately 1 ml of 50 ⁇ g/ml of rifampicin in water with food coloring or approximately 1 ml of negative control with water and food coloring. Leaves were cut into 2 ⁇ 2 cm squared pieces and aphids were placed on the leaf pieces.
  • Leaf perfusion and delivery through plant Leaves were injected with approximately 1 ml of 100 ⁇ g/ml of rifampicin in water plus food coloring or approximately 1 ml of negative control with water and food coloring. The stem of injected leaf was then placed into an Eppendorf tube with 1 ml of 100 ⁇ g/ml of rifampicin plus water and food coloring or 1 ml of negative control with only water and food coloring.
  • Combination delivery method a) Topical delivery to aphid and plant: via spraying both aphids and plants with 0.025% nonionic organosilicone surfactant solvent Silwet L-77 in water (negative control) or 100 ⁇ g/ml of rifampicin formulated in solvent solution using a 30 mL, b) Delivery through plant: water only (negative control) or 100 ⁇ g/ml of rifampicin formulated in water.
  • Aphids (LSR-1 strain, Acyrthosiphon pisum ) were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 25 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • first instar aphids were collected from healthy plants and divided into 3 different treatment groups: 1) artificial diet alone without essential amino acids, 2) artificial diet alone without essential amino acids and 100 ⁇ g/ml rifampicin, and 3) artificial diet with essential amino acids and 100 ⁇ g/ml rifampicin).
  • Each treatment group received approximately the same number of individuals from each of the collection plants.
  • the artificial diet used was made as previously published (Akey and Beck, 1971 Continuous Rearing of the Pea Aphid, Acyrthosiphon pisum , on a Holidic Diet), with and without the essential amino acids (2 mg/ml histidine, 2 mg/ml isoleucine, 2 mg/ml leucine, 2 mg/ml lysine, 1 mg/ml methionine, 1.62 mg/ml phenylalanine, 2 mg/ml threonine, 1 mg/ml tryptophan, and 2 mg/ml valine), except neither diet included homoserine or beta-alanyltyrosine.
  • the pH of the diets was adjusted to 7.5 with KOH and diets were filter sterilized through a 0.22 ⁇ m filter and stored at 4° C. for short term ( ⁇ 7 days) or at ⁇ 80° C. for long term.
  • Rifampicin (Tokyo Chemical Industry, LTD) stock solutions were made at 25 mg/ml in methanol, sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at ⁇ 20° C.
  • the appropriate amount of stock solution was added to the artificial diet with or without essential amino acids to obtain a final concentration of 100 ⁇ g/ml rifampicin.
  • the diet was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf and the opening of the tube was closed using parafilm. This artificial diet feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • the developmental stage (1 st , 2 nd , 3 rd , 4 th , 5 th instar) was determined daily throughout the experiment. Once an aphid reached the 4 th instar stage, they were given their own artificial feeding system in a deep petri dish so that fecundity could be monitored once they reached adulthood.
  • a DNA extraction kit Qiagen, DNeasy kit
  • the primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS).
  • the primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS).
  • qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C.
  • LSR-1 1 st instar aphids were divided into three separate treatment groups as defined in Experimental Design (above). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with artificial diet alone without essential amino acids began reaching maturity (5 th instar stage) at approximately 6 days ( FIG. 2A ). Development was delayed in aphids treated with rifampicin, and by 6 days of treatment, most aphids did not mature further than the 3 rd instar stage, even after 12 days and their size is drastically affected ( FIGS. 2A-2C ).
  • aphids treated with artificial diet with rifampicin supplemented with essential amino acids developed faster and to higher instar stages as compared to aphids treated with rifampicin alone, but not as quickly as aphids treated with artificial diet without essential amino acids ( FIGS. 2A-2C ).
  • FIGS. 2A-2C These data indicate that treatment with rifampicin impaired aphid development. Adding back essential amino acids partially rescued this defect in development.
  • aphids treated with rifampicin without essential amino acids had lower survival rates than aphids treated with artificial diet alone (p ⁇ 0.00001).
  • Rifampicin stock solution was added to 0.025% of a nonionic organosilicone surfactant solvent, Silwet L-77, to obtain a final concentration of 50 ⁇ g/ml rifampicin.
  • Aphids eNASCO strain, Acyrthosiphon pisum
  • first instar aphids were collected from healthy plants and divided into 2 different treatment groups: leaves were sprayed with 1) negative control (solvent solution only), 2) 50 ⁇ g/ml rifampicin in solvent. Solutions were absorbed onto a 2 ⁇ 2 cm piece of fava bean leaf.
  • Each treatment group received approximately the same number of individuals from each of the collection plant. For each treatment, 20 aphids were placed onto each leaf. Aphids were monitored daily for survival and dead aphids were removed when they were discovered. In addition, the developmental stage (1 st , 2 nd , 3 rd , 4 th , 5 th instar, and 5R, representing a reproducing 5 th instar) was determined daily throughout the experiment. Pictures of aphids were taken throughout the experiment to evaluate size differences between treatment groups.
  • LSR-1 1 st instar aphids were divided into two separate treatment groups as defined in the Experimental Design described herein. Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids placed on coated leaves treated with control began reaching maturity (5 th instar reproducing stage; 5R) at approximately 6 days ( FIG. 6A ). Development was delayed in aphids placed on coated leaves with rifampicin, and by 6 days of treatment, most aphids did not mature further than the 3 rd instar stage, even after 12 days, and their size is drastically affected ( FIGS. 6A and 6B ).
  • Microinjection was performed using NanoJet III Auto-Nanoliter Injector with the in-house pulled borosilicate needle (Drummond Scientific; Cat #3-000-203-G/XL).
  • Aphids eNASCO strain, Acyrthosiphon pisum ) were grown on fava bean plants as described in a previous Example. Aphids are transferred using a paint brush to a tubing system connected to vacuum ( FIG. 10 ). The injection site was at the ventral thorax of the aphid.
  • the injection solutions were either the organosilicone surfactant solvent 0.025% Silwet L-77 (Lehle Seeds, Cat No VIS-01) in water (negative control), or 50 ⁇ g/ml of rifampicin formulated in solvent solution.
  • the injection volume was 10 nl for nymph and 20 nl for adult (both at a rate of 2 nl/sec).
  • Each treatment group had approximately the same number of individuals injected from each of the collection plants. After injection, aphids were released into a petri dish with fava bean leaves, whose stems are in 2% agar.
  • Leaf Injection Method A Leaf Perfusion and Cutting
  • Aphids LSR-1 (which harbor only Buchnera ), Acyrthosiphon pisum were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 25 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (leaf injected with water plus blue food coloring) and 2) leaf injected with, 50 ⁇ g/ml rifampicin in water plus blue food coloring.
  • Each treatment group received approximately the same number of individuals from each of the collection plants.
  • rifampicin stock solution 25 mg/ml in 100% methanol
  • the solution was then placed into a 1.5 ml Eppendorf tube with a fava bean stem perfused with the solutions and the opening of the tube was closed using parafilm.
  • This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant. For each treatment, 74-81 aphids were placed onto each leaf. The feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered. In addition, the developmental stage (1 st , 2 nd , 3 rd , 4 th , 5 th , and 5R (5 th that has reproduced) instar) was determined daily throughout the experiment.
  • LSR-1 1st and 2nd instar aphids were divided into two separate treatment groups as defined in Leaf injection method A—Leaf perfusion and cutting Experimental Design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with water plus food coloring began reaching maturity (5th instar stage) at approximately 6 days ( FIG. 11 ). Development was delayed in aphids feeding on rifampicin injected leaves, and by 6 days of treatment, most aphids did not mature further than the 4th instar stage. Even after 8 days, the development of aphids feeding on rifampicin injected leaves was drastically delayed ( FIG. 11 ). These data indicate that rifampicin treatment via leaf perfusion impaired aphid development.
  • Aphids LSR-1 (which harbor only Buchnera ), Acyrthosiphon pisum were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 25 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness.
  • first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) aphids placed on leaves injected with the negative control solution (water and food coloring) and placed into an Eppendorf tube with the negative control solution, or 2) aphids placed on leaves that were injected with 100 ug/ml rifampicin in water plus food coloring and put into an Eppendorf tube with 100 ug/ml rifampicin in water.
  • Each treatment group received approximately the same number of individuals from each of the collection plants.
  • rifampicin stock solution 25 mg/ml in 100% methanol
  • rifampicin stock solution 25 mg/ml in 100% methanol
  • the solution was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf also perfused with the solutions and the opening of the tube was closed using parafilm.
  • This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • LSR-1 1 st and 2 nd instar aphids were divided into two separate treatment groups as defined in Leaf perfusion and delivery through plant Experimental Design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with the control solution (water plus food coloring only) began reaching maturity (5 th instar stage) at approximately 6 days ( FIG. 14 ).
  • Aphids LSR-1 (which harbor only Buchnera ), Acyrthosiphon pisum were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 20 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) treatment with Silwet-L77 or water control solutions or 2) treatment with rifampicin diluted in silwet L-77 or water.
  • Each treatment group received approximately the same number of individuals from each of the collection plants.
  • the combination of delivery methods was as follows: a) Topical delivery to aphid and plant by spraying 0.025% nonionic organosilicone surfactant solvent Silwet L-77 (negative control) or 100 ⁇ g/ml of rifampicin formulated in solvent solution using a 30 mL spray bottle and b) Delivery through plant with either water (negative control) or 100 ⁇ g/ml of rifampicin formulated in water.
  • rifampicin stock solution 25 mg/ml in 100% methanol
  • Silwet L-77 for topical treatment to aphid and coating the leaf
  • water for delivery through plant.
  • the solution was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf also perfused with the solutions and the opening of the tube was closed using parafilm.
  • This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • aphids were placed onto each leaf.
  • the feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • LSR-1 1 st and 2 nd instar aphids were divided into two separate treatment groups as defined in Combination delivery method Experimental Design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Control treated aphids began reaching maturity (5 th instar stage) at approximately 6 days ( FIG. 17 ). Development was delayed in aphids treated with rifampicin, and by 6 days of treatment, most aphids did not mature further than the 3 rd instar stage, even after 7 days their development was drastically delayed ( FIG. 17 ). These data indicate that a combination of rifampicin treatments impaired aphid development.
  • Example 15 Insects Treated with a Natural Antimicrobial Polysacharide
  • This Example demonstrates the treatment of aphids with Chitosan, a natural cationic linear polysaccharide of deacetylated beta-1,4-D-glucosamine derived from chitin.
  • Chitin is the structural element in the exoskeleton of insects, crustaceans (mainly shrimp and crabs) and cell walls of fungi, and the second most abundant natural polysaccharide after cellulose.
  • This Example demonstrates that the effect of chitosan on insects was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to chitosan.
  • One targeted bacterial strain is Buchnera aphidicola.
  • the chitosan solution was formulated using a combination of leaf perfusion and delivery through plants ( FIG. 20 ).
  • the control solution was leaf injected with water+blue food coloring and water in tube.
  • the treatment solution with 300 ug/ml chitosan in water (low molecular weight) via leaf injection (with blue food coloring) and through plant (in Eppendorf tube).
  • Aphids LSR-1 (which harbor only Buchnera ), Acyrthosiphon pisum were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 25 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treated), 2) The treatment solution included 300 ug/ml chitosan in water (low molecular weight). Each treatment group received approximately the same number of individuals from each of the collection plants.
  • Chitosan (Sigma, catalog number 448869-50G) stock solution was made at 1% in acetic acid, sterilized autoclaving, and stored at 4° C.
  • the appropriate amount of stock solution was diluted with water to obtain the final treatment concentration of chitosan.
  • the solution was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf also perfused with the solutions and the opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • aphids were placed onto each leaf.
  • the feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • a DNA extraction kit Qiagen, DNeasy kit
  • the primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS).
  • the primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS).
  • qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C.
  • LSR-1 A pisum 1 st and 2 nd instar aphids were divided into two separate treatment groups as defined in Experimental Design (above). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with the negative control alone began reaching maturity (5 th instar stage) at approximately 6 days ( FIG. 21 ). Development was delayed in aphids treated with chitosan solution, and by 6 days of treatment with chitosan, most aphids did not mature further than the 4 rd instar stage. These data indicate that treatment with chitosan delayed and stopped progression of aphid development.
  • Example 16 Insects Treated with Nisin, a Natural Antimicrobial Peptide
  • This Example demonstrates the treatment of aphids with the natural, “broad spectrum”, polycyclic antibacterial peptide produced by the bacterium Lactococcus lactis that is commonly used as a food preservative.
  • the antibacterial activity of nisin is mediated through its ability to generate pores in the bacterial cell membrane and interrupt bacterial cell-wall biosynthesis through a specific lipid II interaction.
  • This Example demonstrates that the negative effect of nisin on insect fitness is mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to nisin.
  • One targeted bacterial strain is Buchnera aphidicola.
  • Nisin was formulated using a combination of leaf perfusion and delivery through plants.
  • the control solution (water) or treatment solution (nisin) was injected into the leaf and placed in the Eppendorf tube.
  • the treatment solutions consisted of 1.6 or 7 mg/ml nisin in water.
  • LSR-1 aphids Acyrthosiphon pisum were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 25 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treated), 2) nisin treated with either 1.6 or 7 mg/ml nisin in water. Each treatment group received approximately the same number of individuals from each of the collection plants.
  • nisin (Sigma, product number: N5764) solution was made at 1.6 or 7 mg/ml (w/v) in water and filter sterilized using a 0.22 um syringe filter. The solution was then injected into the leaf of the plant and the stem of the plant was placed into a 1.5 ml Eppendorf tube. The opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • aphids were placed onto each leaf.
  • the feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • a DNA extraction kit Qiagen, DNeasy kit
  • the primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS).
  • the primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS).
  • qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C.
  • LSR-1 A pisum 1st and 2nd instar aphids were divided into three separate treatment groups as defined in Experimental Design (above). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with the negative control solution (water) began reaching maturity (5th instar stage) at approximately 6 days, and reproducing (5R stage) by 7 days ( FIG. 24 ). Development was severely delayed in aphids treated with 7 mg/ml nisin. Aphids treated with 7 mg/ml nisin only developed to the 2nd instar stage by day 3, and by day 6, all aphids in the group were dead ( FIG. 24 ).
  • Example 17 Insects Treated with Levulinic Acid Decreases Insect Fitness
  • This Example demonstrates the treatment of aphids with levulinic acid, a keto acid produced by heating a carbohydrate with hexose (e.g., wood, starch, wheat, straw, or cane sugar) with the addition of a dilute mineral acid reduces insect fitness.
  • Levulinic acid has previously been tested as an antimicrobial agent against Escherichia coli and Salmonella in meat production (Carpenter et al., 2010 , Meat Science ; Savannah G. Hawkins, 2014, University of Tennessee Honors Thesis).
  • This Example demonstrates that the effect of levulinic acid on insects was mediated through the modulation of bacterial populations endogenous to the insects that were sensitive to levulinic acid.
  • One targeted bacterial strain is Buchnera aphidicola.
  • the levulinic acid was formulated using a combination of leaf perfusion and delivery through plants.
  • the control solution was leaf injected with water and water was placed in the Eppendorf tube.
  • the treatment solutions included 0.03 or 0.3% levulinic acid in water via leaf injection and through plant (in Eppendorf tube).
  • eNASCO aphids Acyrthosiphon pisum were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 25 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treated), 2) The treatment solution included 0.03 or 0.3% levulinic acid in water. Each treatment group received approximately the same number of individuals from each of the collection plants.
  • levulinic acid (Sigma, product number: W262706) was diluted to either 0.03 or 0.3% in water. The solution was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf also perfused with the solutions and the opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • 57-59 aphids were placed onto each leaf.
  • the feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • a DNA extraction kit Qiagen, DNeasy kit
  • the primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS).
  • the primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS).
  • qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C.
  • eNASCO A pisum 1 st and 2 nd instar aphids were divided into three separate treatment groups as defined in Experimental Design (above). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with the negative control alone began reaching maturity (5 th instar stage) at approximately 7 days ( FIG. 27 ). Development was delayed in aphids treated with levulinic acid and by 11 days post-treatment, nearly all control treated aphids reached maturity while ⁇ 23 and 63% aphids treated with 0.03 and 0.3% levulinic acid, respectively, did not mature further than the 4 rd instar stage. These data indicate that treatment with levulinic acid delayed and stopped progression of aphid development and this delay in development is dependent on the dose of levulinic acid administered.
  • Example 18 Insects Treated with a Plant Derived Secondary Metabolite Solution
  • This Example demonstrates the treatment of aphids with gossypol acetic acid, a natural phenol derived from the cotton plant (genus Gossypium ) that permeates cells and acts as an inhibitor for several dehydrogenase enzymes.
  • gossypol acetic acid a natural phenol derived from the cotton plant (genus Gossypium ) that permeates cells and acts as an inhibitor for several dehydrogenase enzymes.
  • This Example demonstrates that the effect of gossypol on insects was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to gossypol.
  • One targeted bacterial strain is Buchnera aphidicola.
  • the gossypol solution was formulated depending on the delivery method:
  • injection solutions were either 0.5% of gossypol or artificial diet only (negative control).
  • Aphids either eNASCO (which harbor both Buchnera and Serratia primary and secondary symbionts, respectively) or LSR-1 (which harbor only Buchnera ) strains, Acyrthosiphon pisum ) were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 25 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness.
  • first and second instar aphids were collected from healthy plants and divided into 4 different treatment groups: 1) artificial diet alone without essential amino acids, 2) artificial diet alone without essential amino acids and 0.05% of gossypol, 3) artificial diet alone without essential amino acids and 0.25% of gossypol, and 4) artificial diet alone without essential amino acids and 0.5% of gossypol.
  • Each treatment group received approximately the same number of individuals from each of the collection plants.
  • the artificial diet used was made as previously published (Akey and Beck, 1971 Continuous Rearing of the Pea Aphid, Acyrthosiphon pisum , on a Holidic Diet), with and without the essential amino acids (2 mg/ml histidine, 2 mg/ml isoleucine, 2 mg/ml leucine, 2 mg/ml lysine, 1 mg/ml methionine, 1.62 mg/ml phenylalanine, 2 mg/ml threonine, 1 mg/ml tryptophan, and 2 mg/ml valine), except neither diet included homoserine or beta-alanyltyrosine.
  • the pH of the diets was adjusted to 7.5 with KOH and diets were filter sterilized through a 0.22 ⁇ m filter and stored at 4° C. for short term ( ⁇ 7 days) or at ⁇ 80° C. for long term.
  • Gossypol acetic acid (Sigma, Cat # G4382-250MG) stock solution was made at 5% in methanol and sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at 4° C.
  • the appropriate amount of stock solution was added to the artificial diet to obtain the different final concentrations of gossypol.
  • the diet was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf and the opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • the developmental stage (1 st , 2 nd , 3 rd , 4 th , 5 th , and 5R (5 th that has reproduced) instar) was determined daily throughout the experiment. Once an aphid reached the 4 th instar stage, they were given their own artificial feeding system in a deep petri dish so that fecundity could be monitored once they reached adulthood.
  • a DNA extraction kit Qiagen, DNeasy kit
  • the primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS).
  • the primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS).
  • qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C.
  • eNASCO and LSR-1 A pisum 1 st and 2 nd instar aphids were divided into four separate treatment groups as defined in Experimental Design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with artificial diet alone began reaching maturity (5 th instar stage) at approximately 3 days ( FIG. 30A ). Development was delayed in aphids treated with gossypol, and by 5 days of treatment with 0.5% of gossypol, most aphids did not mature further than the 3 rd instar stage, and their size is also affected ( FIGS. 30A and 30B ). These data indicate that treatment with gossypol delayed and stopped progression of aphid development, and that this response was dose dependent.
  • 0.5% gossypol-treated aphids began dying after 2 days of treatment and all aphids succumbed to treatment by 4 days. Aphids treated with 0.25% survived a bit longer than those treated with 0.5% but were also drastically affected.
  • Microinjection was performed using NanoJet III Auto-Nanoliter Injector with the in-house pulled borosilicate needle (Drummond Scientific; Cat #3-000-203-G/XL).
  • Aphids LSR-1 strain, A. pisum
  • Each treatment group had approximately the same number of individuals injected from each of the collection plants.
  • Nymph aphids ( ⁇ 3 rd instar stage) were transferred using a paint brush to a tubing system connected to vacuum and microinjected into the ventral thorax with 20 nl of either artificial diet without essential amino acids (negative control) or 0.05% of gossypol solution in artificial diet without essential amino acids.
  • aphids were placed in a deep petri dish with a fava bean leaf with stem in 2% agar.
  • trans-cinnemaldehyde a natural aromatic aldehyde that is the major component of bark extract of cinnamon ( Cinnamomum zeylandicum ) results in decreased fitness.
  • Trans-cinnemaldehyde has been shown to have antimicrobial activity against both gram-negative and gram-positive organisms, although the exact mechanism of action of its antimicrobial activity remains unclear.
  • Trans-cinnemaldehyde may damage bacterial cell membranes and inhibit of specific cellular processes or enzymes (Gill and Holley, 2004 Applied Environmental Microbiology).
  • This Example demonstrates that the effect of trans-cinnemaldehyde on insects was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to trans-cinnemaldehyde.
  • One targeted bacterial strain is Buchnera aphidicola.
  • Trans-cinnemaldehyde was diluted to 0.05%, 0.5%, or 5% in water and was delivered through leaf perfusion ( ⁇ 1 ml was injected into leaves) and through plants.
  • Aphids (LSR-1 (which harbor only Buchnera ) strains, Acyrthosiphon pisum ) were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 25 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • first and second instar aphids were collected from healthy plants and divided into four different treatment groups: 1) water treated controls, 2) 0.05% trans-cinnemaldehyde in water, 3) 0.5% trans-cinnemaldehyde in water, and 4) 5% trans-cinnemaldehyde in water.
  • Each treatment group received approximately the same number of individuals from each of the collection plants.
  • Trans-cinnemaldehyde (Sigma, Cat # C80687) was diluted to the appropriate concentration in water (see Therapeutic design), sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at 4° C. Fava bean leaves were injected with approximately 1 ml of the treatment and then the leaf was placed in a 1.5 ml Eppendorf tube containing the same treatment solution. The opening of the tube where the fava bean stem was placed was closed using parafilm. This treatment feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • a DNA extraction kit Qiagen, DNeasy kit
  • the primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS).
  • the primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS).
  • qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C.
  • LSR-1 A pisum 1 st and 2 nd instar aphids were divided into four separate treatment groups as defined in Experimental Design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with water alone began reaching the 3 rd instar stage at 3 days post-treatment ( FIG. 35 ). Development was delayed in aphids treated with trans-cinnemaldehyde, and by 3 days of treatment with each the three of the trans-cinnemaldehyde concentrations, none of the aphids matured past the second instar stage ( FIG. 35 ).
  • trans-cinnemaldehyde treatment decreased Buchnera levels, and that this decrease was concentration dependent.
  • This Example demonstrates the treatment of aphids with multiple scorpion antimicrobial peptides (AMP), of which several are identified AMPs in the venom gland transcriptome of the scorpion Urodacus yaschenkoi (Luna-Ramirez et al., 2017, Toxins).
  • AMPs typically have a net positive charge and hence, a high affinity for bacterial membranes.
  • This Example demonstrates that the effect of the AMP on insects was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to AMP peptides.
  • One targeted bacterial strain is Buchnera aphidicola , an obligate symbiont of aphids.
  • the Uy192 solution was formulated using a combination of leaf perfusion and delivery through plants.
  • the control solution was leaf injected with water+blue food coloring and water in tube.
  • the treatment solution consisted of 100 ug/ml Uy192 in water via leaf injection (with blue food coloring) and through plant (in Eppendorf tube).
  • Aphids LSR-1 (which harbor only Buchnera ), Acyrthosiphon pisum were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 20 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treated), 2) The treatment solution of 100 ug/ml AMP in water. Each treatment group received approximately the same number of individuals from each of the collection plants.
  • Uy192 was synthesized by Bio-Synthesis at >75% purity. 1 mg of lyophilized peptide was reconstituted in 500 ul of 80% acetonitrile, 20% water, and 0.1% TFA, 100 ul (100 ug) was aliquoted into 10 individual Eppendorf tubes, and allowed to dry. For treatment (see Therapeutic design), 1 ml of water was added to a 100 ug aliquot of peptide to obtain the final concentration of Uy192 (100 ug/ml). The solution was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf also perfused with the solutions and the opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • aphids were placed onto each leaf.
  • the feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • a DNA extraction kit Qiagen, DNeasy kit
  • the primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS).
  • the primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS).
  • qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C.
  • LSR-1 A pisum 1 st and 2 nd instar aphids were divided into two separate treatment groups as defined in Experimental Design (above). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with the negative control alone began reaching maturity (5 th instar stage) at approximately 6 days ( FIG. 38 ). Development was delayed in aphids treated with Uy192, and after 8 days of treatment, aphids did not mature further than the 4 rd instar stage. These data indicate that treatment with Uy192 delayed and stopped progression of aphid development.
  • This Example demonstrates the treatment of aphids with several scorpion antimicrobial peptides (AMPs) D10, D3, Uyct3, and Uy17, which have been recently identified AMPs in the venom gland transcriptome of the scorpion Urodacus yaschenkoi (Luna-Ramirez et al., 2017, Toxins).
  • AMPs typically have a net positive charge and hence, a high affinity for bacterial membranes.
  • This Example demonstrates that the effect of the AMPs on insects was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to AMP peptides.
  • One targeted bacterial strain is Buchnera aphidicola , an obligate symbiont of aphids.
  • Aphids are agricultural insect pests causing direct feeding damage to the plant and serving as vectors of plant viruses.
  • aphid honeydew promotes the growth of sooty mold and attracts nuisance ants.
  • the indicated peptide or peptide cocktail was directly microinjected into aphids or delivered using a combination of leaf perfusion and delivery through plants.
  • aphids were microinjected with water (for microinjection experiments) or placed on leaves injected with water and water in tube (for leaf perfusion and plant delivery experiments).
  • the treatment solutions consisted of 20 nl of 5 ⁇ g/ ⁇ l of D3 or D10 dissolved in water (for aphid microinjections) or 40 ⁇ g/ml of a cocktail of D10, Uy17, D3, and UyCt3 in water via leaf injection and through plant (in Eppendorf tube).
  • Microinjection was performed using NanoJet III Auto-Nanoliter Injector with the in-house pulled borosilicate needle (Drummond Scientific; Cat #3-000-203-G/XL).
  • Aphids LSR-1 strain, Acyrthosiphon pisum
  • fava bean plants Vroma vicia faba from Johnny's Selected Seeds
  • a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 25 ⁇ 2° C.).
  • fava bean plants Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness.
  • aphids were microinjected into the ventral thorax with 20 nl of either water or 100 ng (20 ul of a 5 ug/ml solution of peptide D3 or D10. The microinjection rate as 5 nl/sec. After injection, aphids were placed in a deep petri dish containing a fava bean leaf with stem in 2% agar.
  • Peptides were synthesized by Bio-Synthesis at >75% purity. 1 mg of lyophilized peptide was reconstituted in 500 ⁇ l of 80% acetonitrile, 20% water, and 0.1% TFA, 100 ⁇ l (100 ⁇ g) was aliquoted into 10 individual Eppendorf tubes, and allowed to dry.
  • a DNA extraction kit Qiagen, DNeasy kit
  • the primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS).
  • the primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS).
  • qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C.
  • LSR-1 A pisum 1 st and 2 nd instar aphids were divided into three separate treatment groups as defined in Experimental Design (described herein). Aphids were monitored daily and survival rate was determined. After 5 days of treatment, the aphids injected with the scorpion peptides had lower survival rates compared to water injected controls (9, 35, and 45% survival for injection with D3, D10, and water, respectively) ( FIG. 41 ). These data indicate that there was a decrease in survival upon treatment with the scorpion AMPs D3 and D10.
  • eNASCO Aphids which harbor Buchnera and Serratia
  • Acyrthosiphon pisum were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) as described above.
  • first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treated), 2) The treatment solution consisted of 40 ⁇ g/ml of each D10, Uy17, D3, and UyCt3 in water. Each treatment group received approximately the same number of individuals from each of the collection plants.
  • Peptides were synthesized, dissolved, and aliquoted, as described above.
  • water was added to a 100 ⁇ g aliquot of peptide to obtain the desired final concentration (40 ⁇ g/ml).
  • the four peptides were combined to make the peptide cocktail solution. This solution was used to perfuse into leaves via injection. Following injection, the stems of the injected leaves were placed into a 1.5 ml Eppendorf tube which was then sealed with parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • Example 22 Insects Treated with an Antimicrobial Peptide Fused to a Cell Penetrating Peptide
  • This Example demonstrates the treatment of aphids with a fused scorpion antimicrobial peptide (AMP) (Uy192) to a cell penetrating peptide derived from a virus.
  • AMP scorpion antimicrobial peptide
  • Uy192 is one of several recently identified AMPs in the venom gland transcriptome of the scorpion Urodacus yaschenkoi (Luna-Ramirez et al., 2017, Toxins).
  • AMPs typically have a net positive charge and hence, a high affinity for bacterial membranes.
  • the peptide was synthesized fused to a portion of the transactivator of transcription (TAT) protein of human immunodeficiency virus I (HIV-1).
  • TAT transactivator of transcription
  • HAV-1 human immunodeficiency virus I
  • the scorpion peptide conjugated to the cell penetrating peptide and fluorescently tagged with 6FAM was formulated using a combination of leaf perfusion and delivery through plants.
  • the control solution (water) or treatment solution (Uy192+CPP+FAM) was injected into the leaf and placed in the Eppendorf tube.
  • the treatment solution included 100 ⁇ g/ml Uy192+CPP+FAM in water.
  • LSR-1 aphids Acyrthosiphon pisum were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 25 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • Uy192+CPP+FAM amino acid sequence: YGRKKRRQRRRFLSTIWNGIKGLL-FAM
  • Bio-Synthesis at >75% purity. 5 mg of lyophilized peptide was reconstituted in 1 ml of 80% acetonitrile, 20% water, and 0.1% TFA, 50 ⁇ l (100 ⁇ g) was aliquoted into individual Eppendorf tubes, and allowed to dry.
  • 1 ml of sterile water was added to a 100 ⁇ g aliquot of peptide to obtain the final concentration of Uy192+CPP+FAM (100 ⁇ g/ml).
  • the solution was then injected into the leaf of the plant and the stem of the plant was placed into a 1.5 ml Eppendorf tube. The opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant. Epi fluorescence imaging of the leaf confirmed that the leaves contained the green fluorescently tagged peptide in their vascular system.
  • a DNA extraction kit Qiagen, DNeasy kit
  • the primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS).
  • the primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS).
  • qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C.
  • LSR-1 A pisum 1st instar aphids were divided into three separate treatment groups as defined in Experimental Design (above). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Development for both aphids treated with water and those treated with the scorpion peptide fused to the cell penetrating peptide was similar for days 0 and 1 ( FIG. 44 ). By day 2, however, control treated aphids developed to either in the second or third instar stage, while some aphids treated with the scorpion peptide fused to the cell penetrating peptide remained in the first instar stage ( FIG. 44 ).
  • isolated bacteriocytes were directly exposed to the fusion protein and imaged.
  • the bacteriocytes were dissected from the aphids in Schneider's medium supplemented with 1% w/v BSA (Schneider-BSA medium), and placed in an imaging well containing 20 ul of schneider's medium.
  • a 100 ug lyophilized aliquot of the scorpion peptide was resuspended in 100 ul of the schneider's medium to produce 1 mg/ml solution, and 5 ul of this solution was mixed in to the well containing bacteriocytes.
  • this data demonstrates the ability to kill and decrease the development, longevity, and endogenous bacterial populations, e.g., fitness, of aphids by treating them with the scorpion antimicrobial peptide Uy192 fused to a cell penetrating peptide.
  • pantothenol which is the alcohol analog of pantothenic acid (Vitamin B5).
  • Aphids have obligate endosymbiont bacteria, Buchnera , that help them make essential amino acids and vitamins, including Vitamin B5.
  • pantothenol inhibits the growth of Plasmodium falciparium by inhibition of the specific parasite kinases (Saliba et al., 2005). It was hypothesized that treating insects with pantothenol would be detrimental for the bacterial-insect symbiosis therefore affecting insect fitness. This Example demonstrates that the treatment with pantothenol decreased insect fitness.
  • Pantothenol solutions were formulated depending on the delivery method:
  • pantothenol formulated in an artificial diet (based on Akey and Beck, 1971; see Experimental Design) without essential amino acids (2 mg/ml histidine, 2 mg/ml isoleucine, 2 mg/ml leucine, 2 mg/ml lysine, 1 mg/ml methionine, 1.62 mg/ml phenylalanine, 2 mg/ml threonine, 1 mg/ml tryptophan, and 2 mg/ml valine).
  • Leaf coating 100 ⁇ l of 0.025% nonionic organosilicone surfactant solvent Silwet L-77 in water (negative control) or 100 ⁇ l of 50 ⁇ g/ml of rifampicin formulated in solvent solution was applied directly to the leaf surface and allowed to dry.
  • Aphids were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 25 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • first and second instar aphids were collected from healthy plants and divided into 3 different treatment groups: 1) artificial diet alone without essential amino acids, 2) artificial diet alone without essential amino acids and 10 uM pantothenol, and 3) artificial diet alone without essential amino acids and 100 uM pantothenol.
  • Each treatment group received approximately the same number of individuals from each of the collection plants.
  • the artificial diet used was made as previously published (Akey and Beck, 1971 Continuous Rearing of the Pea Aphid, Acyrthosiphon pisum , on a Holidic Diet), with and without the essential amino acids (2 mg/ml histidine, 2 mg/ml isoleucine, 2 mg/ml leucine, 2 mg/ml lysine, 1 mg/ml methionine, 1.62 mg/ml phenylalanine, 2 mg/ml threonine, 1 mg/ml tryptophan, and 2 mg/ml valine), except neither diet included homoserine or beta-alanyltyrosine.
  • the pH of the diets was adjusted to 7.5 with KOH and diets were filter sterilized through a 0.22 ⁇ m filter and stored at 4° C. for short term ( ⁇ 7 days) or at ⁇ 80° C. for long term.
  • Pantothenol (Sigma Cat #295787) solutions were made at 10 uM and 100 uM in artificial diet without essential amino acids, sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at ⁇ 20° C.
  • the appropriate amount of stock solution was added to the artificial diet without essential amino acids to obtain a final concentration of 10 or 100 uM pantothenol.
  • the diet was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf and the opening of the tube was closed using parafilm. This artificial diet feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • the developmental stage (1st, 2nd, 3rd, 4th, 5th instar) was determined daily throughout the experiment. Once an aphid reached the 4th instar stage, they were given their own artificial feeding system in a deep petri dish so that fecundity could be monitored once they reached adulthood.
  • a DNA extraction kit Qiagen, DNeasy kit
  • the primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS).
  • the primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS).
  • qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C.
  • eNASCO 1st and 2nd instar aphids were divided into three separate treatment groups as defined in Plant Delivery Experimental Design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with artificial diet alone without essential amino acids began reaching maturity (5th instar stage) at approximately 5 days ( FIG. 48A ). Development was delayed in aphids treated with pantothenol, especially at days two and three post-treatment ( FIG. 48A ), indicating that treatment with pantothenol impairs aphid development. Eventually, most aphids from each treatment group reached maturity and began reproducing.
  • aphids were also imaged and aphid area was determined. All aphids were the same size after 1 day of treatment, however, by 3 days post-treatment, aphids treated with pantothenol were smaller in area than untreated controls. Moreover, aphids treated with pantothenol had much less of an increase in body size (as determined by area) over the course of the experiment, compared to aphids treated with artificial diet alone without essential amino acids ( FIG. 48B ).
  • Fecundity was also monitored in aphids during the treatments. The fraction of aphids surviving to maturity and reproducing was determined. Approximately one quarter of aphids treated with artificial diet without essential amino acids survived to reach maturity by 8 days post-treatment ( FIG. 50A ). In contrast, only a little over 1/10th of aphids treated with 10 or 100 uM pantothenol survived to reach maturity and reproduce by 8 days post-treatment. The mean day aphids in each treatment group began reproducing was also measured and for all treatment groups, the mean day aphids began reproducing was 7 days ( FIG. 50B ). Additionally, the mean number of offspring per day produced by mature, reproducing aphids was also monitored.
  • Pantothenol Treatment does not Affect Buchnera in Aphids
  • Pantothenol powder was added to 0.025% of a nonionic organosilicone surfactant solvent, Silwet L-77, to obtain a final concentration of 10 uM pantothenol.
  • the treatment was filter sterilized using a 0.22 um filter and stored at 4 degrees C.
  • Aphids eNASCO strain, Acyrthosiphon pisum ) were grown on fava bean plants as described in a previous Example.
  • first instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (solvent solution only) and 2) 10 uM pantothenol in solvent. 100 ul of the solution was absorbed onto a 2 ⁇ 2 cm piece of fava bean leaf.
  • Each treatment group received approximately the same number of individuals from each of the collection plant. For each treatment, 20 aphids were placed onto each leaf. Aphids were monitored daily for survival and dead aphids were removed when they were discovered. In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th instar, and 5R, representing a reproducing 5th instar) was determined daily throughout the experiment.
  • eNASCO 1st instar aphids were divided into two separate treatment groups as defined in the Experimental Design described herein. Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids placed on coated leaves treated with either the control or pantothenol solution matured at similar rates up to two days post-treatment ( FIG. 52 ). These data indicate that leaf coating with pantothenol did not affect aphid development.
  • Example 24 Insects Treated with a Cocktail of Amino Acid Transporters Inhibitors
  • This Example demonstrates the treatment of aphids with a cocktail of amino acid analogs.
  • the objective of this treatment was to inhibit uptakes of glutamine into the bacteriocytes through the ApGLNT1 glutamine transporter. It has previously been shown that arginine inhibits glutamine uptake by the glutamine transporter (Price et al., 2014 PNAS), and we hypothesized that treatment with analogs of arginine, or other amino acid analogs, may also inhibit uptake of essential amino acids into the aphid bacteriocytes.
  • This Example demonstrates that the decrease in fitness upon treatment was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to amino acid analogs.
  • One targeted bacterial strain is Buchnera.
  • the amino acid cocktail was formulated for delivery through leaf perfusion and through the plant. This delivery method consisted of injecting leaves with approximately 1 ml of the amino acid cocktail in water (see below for list of components in the cocktail) or 1 ml of the negative control solution containing water only.
  • Aphids LSR-1 (which harbor only Buchnera ), Acyrthosiphon pisum were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 25 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • amino acid cocktail contained each of the following agents at the indicated final concentrations: 330 ⁇ ML-NNA (N-nitro-L-Arginine; Sigma), 0.1 mg/ml L-canavanine (Sigma), 0.5 mg/ml D-arginine (Sigma), 0.5 mg/ml D-phenylalanine (Sigma), 0.5 mg/ml D-histidine (Sigma), 0.5 mg/ml D-tryptophan (Sigma), 0.5 mg/ml D-threonine (Sigma), 0.5 mg/ml D-valine (Sigma), 0.5 mg/ml D-methionine (Sigma), 0.5 mg/ml D-leucine, and 6 ⁇ M L-NMMA (citrate) (Cayman Chemical).
  • ⁇ 1 ml of the treatment solution was perfused into the fava bean leaf via injection and the stem of the plant was put into a 1.5 ml Eppendorf tube containing the treatment solution. The opening of the tube was closed using parafilm.
  • This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant. For each treatment, a total of 56-58 aphids were placed onto each leaf (each treatment consisted of two replicates of 28-31 aphids). Each treatment group received approximately the same number of individuals from each of the collection plants. The feeding systems were changed every 2-3 days throughout the experiment.
  • Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • the aphid developmental stage (1st, 2nd, 3rd, 4th, and 5th instar) was determined daily throughout the experiment and microscopic images were taken of the aphids on day 5 to determine aphid area measurements.
  • Stock solutions of L-NNA were made at 5 mM in water, sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at ⁇ 20° C.
  • Stock solutions of L-canavanine were made at 100 mg/ml in water, sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at 4° C.
  • Stock solutions of D-arginine and D-threonine were made at 50 mg/ml in water, sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at 4° C.
  • Stock solutions of D-valine and D-methionine were made at 25 mg/ml in water, sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at 4° C.
  • Stock solutions of D-leucine were made at 12 mg/ml in water, sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at 4° C.
  • Stock solutions of D-phenylalanine and D-histidine were made at 50 mg/ml in 1M HCl, sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at 4° C.
  • Stock solutions of D-tryptophan were made at 50 mg/ml in 0.5M HCl, sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at 4° C.
  • Stock solutions of L-NMMA were made at 6 mg/ml in sterile PBS, sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at ⁇ 20° C.
  • the appropriate amount of stock solution was added to water to obtain the final concentration of the agent in the cocktail as indicated above.
  • a DNA extraction kit Qiagen, DNeasy kit
  • the primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS).
  • the primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS).
  • qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C.
  • LSR-1 1st instar aphids were divided into two separate treatment groups as defined in Leaf perfusion and delivery through plants experimental design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with water began reaching maturity (5th instar stage) at day 5 post-treatment ( FIG. 54A ). By 6 days post-treatment, ⁇ 20 percent of aphids treated with water reached the 5th instar stage. In contrast, less than 3 percent of the aphids treated with the amino acid cocktail reached the 5th instar stage, even after 6 days ( FIG. 54A ). This delay in development upon treatment with the amino acid cocktail was further exemplified by aphid size measurements taken at 5 days post-treatment.
  • this data demonstrates the ability to decrease the development and endogenous bacterial populations, e.g., fitness, of aphids by treating them with a cocktail of amino acid analogs.
  • Example 25 Insects Treated with a Combination of Agents (Antibiotic, Peptide, and Natural Antimicrobial)
  • This Example demonstrates the treatment of insects with a combination of three antimicrobial agents—an antibiotic (rifampicin), a peptide (the scorpion peptide Uy192), and a natural antimicrobial (low molecular weight chitosan).
  • an antibiotic rifampicin
  • a peptide the scorpion peptide Uy192
  • a natural antimicrobial low molecular weight chitosan
  • each of these agents administered individually resulted in decreased aphid fitness and reduced endosymbiont levels.
  • This Example demonstrates that through the delivery of a combination of treatments, insect fitness and endosymbiont levels were reduced as well as, or better than, treatment with each individual agent alone.
  • the combination treatment was formulated for delivery through leaf perfusion and through the plant.
  • This delivery method consisted of injecting leaves with approximately 1 ml of the combination treatment in water (with final concentrations of 100 ⁇ g/ml rifampicin, 100 ⁇ g/ml Uy192, and 300 ⁇ g/ml chitosan) or 1 ml of the negative control solution containing water only.
  • Aphids LSR-1 (which harbor only Buchnera ), Acyrthosiphon pisum were grown on fava bean plants ( Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60 ⁇ 5% RH; 25 ⁇ 2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • first instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treatment) and 2) a combination of 100 ⁇ g/ml rifampicin, 100 ⁇ g/ml Uy192, and 300 ⁇ g/ml chitosan treatment.
  • ⁇ 1 ml of the treatment solution was perfused into the fava bean leaf via injection and the stem of the plant was put into a 1.5 ml Eppendorf tube containing the treatment solution. The opening of the tube was closed using parafilm.
  • This treatment system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant. For each treatment, a total of 56 aphids were placed onto each leaf (each treatment consisted of two replicates of 28 aphids).
  • Each treatment group received approximately the same number of individuals from each of the collection plants.
  • the feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • the aphid developmental stage (1 st , 2 nd , 3 rd , 4 th , and 5 th instar) was determined daily throughout the experiment and microscopic images were taken of the aphids on day 5 to determine aphid area measurements.
  • Rifampicin (Tokyo Chemical Industry, LTD) stock solution was made at 25 mg/ml in methanol, sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at ⁇ 20° C. For treatment, the appropriate amount of stock solution was added to water to obtain a final concentration of 100 ⁇ g/ml rifampicin.
  • Uy192 was synthesized by Bio-Synthesis at >75% purity. 1 mg of lyophilized peptide was reconstituted in 500 ⁇ l of 80% acetonitrile, 20% water, and 0.1% TFA. 100 ⁇ l (100 ⁇ g) was aliquoted into 10 individual Eppendorf tubes and allowed to dry.
  • a DNA extraction kit Qiagen, DNeasy kit
  • the primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 228) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 229) (Chong and Moran, 2016 PNAS).
  • the primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 230) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 231) (Chong and Moran, 2016 PNAS).
  • qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C.
  • LSR-1 1 st instar aphids were divided into two separate treatment groups as defined in Leaf perfusion and delivery through plants experimental design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with water began reaching maturity (5 th instar stage) at day 5 post-treatment ( FIG. 56A ). By 6 days post-treatment, ⁇ 20 percent of aphids treated with water reached the 5 th instar stage. In contrast, no aphids treated with the combination of three agents reached the 5 th instar stage, even after 6 days ( FIG. 56A ). This delay in development upon combination treatment was further exemplified by aphid size measurements taken at 5 days post-treatment.
  • this data demonstrates the ability to decrease the development and endogenous bacterial populations, e.g., fitness, of aphids by treating them with a combination of a peptide, antibiotic, and natural antimicrobial.
  • This Example demonstrates the effects of treatment of weevils with ciprofloxacin, a bactericidal antibiotic that inhibits the activity of DNA gyrase and topoisomerase, two enzymes essential for DNA replication.
  • This Example demonstrates that the phenotypic effect of ciprofloxacin on another model insect, weevils, was mediated through the modulation of bacterial populations endogenous to the insects that were sensitive to ciprofloxacin.
  • One targeted bacterial strain is Sitophilus primary endosymbiont (SPE, Candidatus Sodalis pierantonius ).
  • Sitophilus maize weevils Sitophilus zeamais were reared on organic corn at 27.5° C. and 70% relative humidity. Prior to being used for weevil rearing, corn was frozen for 7 days and then tempered to 10% humidity with sterile water. For experiments, adult male/female mating pairs were divided into 3 different treatment groups that were done in triplicate: 1) water control, 2) 250 ⁇ g/ml ciprofloxacin, and 3) 2.5 mg/ml ciprofloxacin. Ciprofloxacin (Sigma) stock solutions were made at 25 mg/ml in 0.1N HCl, sterilized by passing through a 0.22 ⁇ m syringe filter, and stored at ⁇ 20° C. For treatments, the appropriate amount of stock solution was diluted in sterile water.
  • the weevils were subjected to three successive treatments:
  • weevil survival was monitored daily for 18 days, after which DNA was extracted from the remaining weevils in each group. Briefly, the weevil body was surface sterilized by dipping the weevil into a 6% bleach solution for approximately 5 seconds. Weevils were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and SPE and weevil DNA copy numbers were measured by qPCR.
  • a DNA extraction kit Qiagen, DNeasy kit
  • the primers used for SPE were qPCR_Sod_F (ATAGCTGTCCAGACGCTTCG; SEQ ID NO: 244) and qPCR_Sod_R (ATGTCGTCGAGGCGATTACC; SEQ ID NO: 245).
  • the primers used for weevil ( ⁇ -actin) were SACT144_FOR (GGTGTTGGCGTACAAGTCCT; SEQ ID NO: 246) and SACT314_REV (GAATTGCCTGATGGACAGGT; SEQ ID NO: 247) (Login et al., 2011).
  • qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C.
  • corn kernels were soaked in water without antibiotics or water with 2.5 or 0.25 mg/ml ciprofloxacin (as described above). A concentrated culture of E. coli was then spread onto LB plates and one of the coated kernels was then placed onto the center of the plate. The plates were incubated overnight, and bacterial growth was assessed the next day.
  • FIG. 56A A lawn of bacteria grew on the entire plate with the corn kernel that had been coated in water without any antibiotics. In contrast, no bacteria grew on plates with entire corn kernels that had been soaked in either of the two concentrations of ciprofloxacin ( FIG. 56B , left panels). These data show that the coating method employed in these experiments allowed for ciprofloxacin to successfully coat the surface of corn kernels and inhibit bacterial growth.
  • corn kernels soaked in 2.5 or 0.25 mg/ml ciprofloxacin were cut in half and placed cut side down on an LB plate with a concentrated culture of E. coli . The plates were incubated overnight and the next day bacterial growth was assessed. No bacterial growth was present on the plates with the kernels soaked in either concentration of antibiotic, indicating that ciprofloxacin penetrated the corn kernel ( FIG. 56B , right panels). Together, these data indicate that the method of corn kernel soaking used for these experiments successfully coated and penetrated the kernels with the antibiotic.
  • Antibiotic Treatment Decreases SPE Levels in the F0 Generation.

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Abstract

Provided herein are agents, compositions, and methods useful for animal health, e.g., for altering the level, activity, or metabolism of one or more microorganisms resident in a host insect (e.g., arthropod, e.g., insect, e.g., pathogen vector), the alteration resulting in a decrease in the fitness of the host. The invention features a composition that includes an agent (e.g., phage, peptide, small molecule, antibiotic, or combinations thereof) that can alter the host's microbiota in a manner that is detrimental to the host. By disrupting microbial levels, microbial activity, microbial metabolism, or microbial diversity, the agents described herein may be used to decrease the fitness of a variety of insects that carry vector-borne pathogens that cause disease in animals.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • This application claims priority to U.S. Provisional Application No. 62/450,032, filed on Jan. 24, 2017, and U.S. Provisional Application No. 62/583,925, filed on Nov. 9, 2017, the contents of which are hereby incorporated herein by reference in their entireties.
  • BACKGROUND
  • Insects function as vectors for pathogens causing severe disease in humans and animals such as dengue, trypanosomiases, and malaria. Vector-borne diseases that infect animals, such as livestock, represent a major global public health burden. Thus, there is need in the art for methods and compositions to control insects that carry vector-borne diseases.
  • SUMMARY OF THE INVENTION
  • Disclosed herein are compositions and methods for modulating the fitness of insects for controlling the spread of vector-borne diseases in animals. The composition includes an agent that alters a level, activity, or metabolism of one or more microorganisms resident in a host, the alteration resulting in a modulation in the host's fitness.
  • In one aspect, provided herein is a method of decreasing fitness of a vector (e.g., insect vector) for an animal pathogen, the method including delivering an antimicrobial peptide having at least 90% sequence identity (e.g., at least 90%, 92%, 94%, 96%, 98%, or 100% sequence identity) with one or more of the following: cecropin (SEQ ID NO: 82), melittin, copsin, drosomycin (SEQ ID NO: 93), dermcidin (SEQ ID NO: 81), andropin (SEQ ID NO: 83), moricin (SEQ ID NO: 84), ceratotoxin (SEQ ID NO: 85), abaecin (SEQ ID NO: 86), apidaecin (SEQ ID NO: 87), prophenin (SEQ ID NO: 88), indolicidin (SEQ ID NO: 89), protegrin (SEQ ID NO: 90), tachyplesin (SEQ ID NO: 91), or defensin (SEQ ID NO: 92) to the vector.
  • In some embodiments, the delivery includes delivering the antimicrobial peptide to at least one habitat where the vector grows, lives, reproduces, feeds, or infests.
  • In some embodiments, the antimicrobial peptide may be delivered in an insect comestible composition for ingestion by the vector.
  • In some embodiments, the antimicrobial peptide may be formulated as a liquid, a solid, an aerosol, a paste, a gel, or a gas composition.
  • In some embodiments, the insect may be at least one of a mosquito, midge, louse, sandfly, tick, triatomine bug, tsetse fly, or flea.
  • In another aspect, provided herein is a composition including an antimicrobial peptide having at least 90% sequence identity (e.g., at least 90%, 92%, 94%, 96%, 98%, or 100% sequence identity) with one or more of the following: cecropin (SEQ ID NO: 82), melittin, copsin, drosomycin (SEQ ID NO: 93), dermcidin (SEQ ID NO: 81), andropin (SEQ ID NO: 83), moricin (SEQ ID NO: 84), ceratotoxin (SEQ ID NO: 85), abaecin (SEQ ID NO: 86), apidaecin (SEQ ID NO: 87), prophenin (SEQ ID NO: 88), indolicidin (SEQ ID NO: 89), protegrin (SEQ ID NO: 90), tachyplesin (SEQ ID NO: 91), or defensin (SEQ ID NO: 92) formulated for targeting a microorganism in a vector (e.g., an insect vector) for an animal pathogen.
  • In some embodiments of the second aspect, the antimicrobial peptide may be at a concentration of about 0.1 ng/g to about 100 mg/g (about 0.1 ng/g to about 1 ng/g, about 1 ng/g to about 10 ng/g, about 10 ng/g to about 100 ng/g, about 100 ng/g to about 1000 ng/g, about 1 mg/g to about 10 mg/g, about 10 mg/g to about 100 mg/g) or about 0.1 ng/mL to about 100 mg/mL (about 0.1 ng/mL to about 1 ng/mL, about 1 ng/mL to about 10 ng/mL, about 10 ng/mL to about 100 ng/mL, about 100 ng/mL to about 1000 ng/mL, about 1 mg/mL to about 10 mg/mL, about 10 mg/mL to about 100 mg/mL) in the composition.
  • In some embodiments of the second aspect, the antimicrobial peptide may further include a targeting domain.
  • In some embodiments of the second aspect, the antimicrobial peptide may further include a cell penetrating peptide.
  • In yet another aspect, the composition includes an agent that alters a level, activity, or metabolism of one or more microorganisms resident in an insect host, the alteration resulting in a decrease in the insect host's fitness.
  • In some embodiments of any of the above compositions, the one or more microorganisms may be a bacterium or fungus resident in the host. In some embodiments, the bacterium resident in the host is at least one selected from the group consisting of Candidatus spp, Buchenera spp, Blattabacterium spp, Baumania spp, Wigglesworthia spp, Wolbachia spp, Rickettsia spp, Orientia spp, Sodalis spp, Burkholderia spp, Cupriavidus spp, Frankia spp, Snirhizobium spp, Streptococcus spp, Wolinella spp, Xylella spp, Erwinia spp, Agrobacterium spp, Bacillus spp, Paenibacillus spp, Streptomyces spp, Micrococcus spp, Corynebacterium spp, Acetobacter spp, Cyanobacteria spp, Salmonella spp, Rhodococcus spp, Pseudomonas spp, Lactobacillus spp, Enterococcus spp, Alcaligenes spp, Klebsiella spp, Paenibacillus spp, Arthrobacter spp, Corynebacterium spp, Brevibacterium spp, Thermus spp, Pseudomonas spp, Clostridium spp, and Escherichia spp. In some embodiments, the fungus resident in the host is at least one selected from the group consisting of Candida, Metschnikowia, Debaromyces, Starmerella, Pichia, Cryptococcus, Pseudozyma, Symbiotaphrina bucneri, Symbiotaphrina Scheffersomyces shehatae, Scheffersomyces stipites, Cryptococcus, Trichosporon, Amylostereum areolatum, Epichloe spp, Pichia pinus, Hansenula capsulate, Daldinia decipien, Ceratocytis spp, Ophiostoma spp, and Attamyces bromatificus. In certain embodiments, the bacteria is a Wolbachia spp. (e.g., in a mosquito host). In certain embodiments, the bacteria is a Rickettsia spp. (e.g., in a tick host).
  • In any of the above compositions, the agent, which hereinafter may also be referred to as a modulating agent, may alter the growth, division, viability, metabolism, and/or longevity of the microorganism resident in the host. In any of the above embodiments, the modulating agent may decrease the viability of the one or more microorganisms resident in the host. In some embodiments, the modulating agent increases growth or viability of the one or more microorganisms resident in the host.
  • In any of the above embodiments, the modulating agent is a phage, a polypeptide, a small molecule, an antibiotic, a bacterium, or any combination thereof.
  • In some embodiments, the phage binds a cell surface protein on a bacterium resident in the host. In some embodiments, the phage is virulent to a bacterium resident in the host. In some embodiments, the phage is at least one selected from the group consisting of Myoviridae, Siphoviridae, Podoviridae, Lipothrixviridae, Rudiviridae, Ampullaviridae, Bicaudaviridae, Clavaviridae, Corticoviridae, Cystoviridae, Fuselloviridae, Gluboloviridae, Guttaviridae, Inoviridae, Leviviridae, Microviridae, Plasmaviridae, and Tectiviridae.
  • In some embodiments, the polypeptide is at least one of a bacteriocin, R-type bacteriocin, nodule C-rich peptide, antimicrobial peptide, lysin, or bacteriocyte regulatory peptide.
  • In some embodiments, the small molecule is a metabolite.
  • In some embodiments, the antibiotic is a broad-spectrum antibiotic.
  • In some embodiments, the modulating agent is a naturally occurring bacteria. In some embodiments, the bacteria is at least one selected from the group consisting of Bartonella apis, Parasaccharibacter apium, Frischella perrara, Snodgrassella alvi, Gilliamela apicola, Bifidobacterium spp, and Lactobacillus spp. In some embodiments, the bacterium is at least one selected from the group consisting of Candidatus spp, Buchenera spp, Blattabacterium spp, Baumania spp, Wigglesworthia spp, Wolbachia spp, Rickettsia spp, Orientia spp, Sodalis spp, Burkholderia spp, Cupriavidus spp, Frankia spp, Snirhizobium spp, Streptococcus spp, Wolinella spp, Xylella spp, Erwinia spp, Agrobacterium spp, Bacillus spp, Paenibacillus spp, Streptomyces spp, Micrococcus spp, Corynebacterium spp, Acetobacter spp, Cyanobacteria spp, Salmonella spp, Rhodococcus spp, Pseudomonas spp, Lactobacillus spp, Enterococcus spp, Alcaligenes spp, Klebsiella spp, Paenibacillus spp, Arthrobacter spp, Corynebacterium spp, Brevibacterium spp, Thermus spp, Pseudomonas spp, Clostridium spp, and Escherichia spp.
  • In any of the above compositions, host fitness may be measured by survival, reproduction, or metabolism of the host. In any of the above embodiments, the modulating agent may modulate the host's fitness by increasing pesticidal susceptibility of the host (e.g., susceptibility to a pesticide listed in Table 12). In some embodiments, the modulating agent modulates the host's fitness by increasing pesticidal susceptibility of the host. In some embodiments, the pesticidal susceptibility is bactericidal or fungicidal susceptibility. In some embodiments, the pesticidal susceptibility is insecticidal susceptibility.
  • In any of the above compositions, the composition may include a plurality of different modulating agents. In some embodiments, the composition includes a modulating agent and a pesticidal agent (e.g., a pesticide listed in Table 12). In some embodiments, the pesticidal agent is a bactericidal or fungicidal agent. In some embodiments, the pesticidal agent is an insecticidal agent.
  • In any of the above compositions, modulating agent may be linked to a second moiety. In some embodiments, the second moiety is a modulating agent.
  • In any of the above compositions, the modulating agent may be linked to a targeting domain. In some embodiments, the targeting domain targets the modulating agent to a target site in the host. In some embodiments, the targeting domain targets the modulating agent to the one or more microorganisms resident in the host.
  • In any of the above compositions, the modulating agent may include an inactivating pre- or pro-sequence, thereby forming a precursor modulating agent. In some embodiments, the precursor modulating agent is converted to an active form in the host.
  • In any of the above compositions, the modulating agent may include a linker. In some embodiments, the linker is a cleavable linker.
  • In any of the above compositions, the composition may further include a carrier. In some instances, the carrier may be an agriculturally acceptable carrier.
  • In any of the above compositions, the composition may further include a host bait, a sticky agent, or a combination thereof. In some embodiments, the host bait is a comestible agent and/or a chemoattractant.
  • In any of the above compositions, the composition may be at a dose effective to modulate host fitness. I
  • In any of the above compositions, the composition may be formulated for delivery to a microorganism inhabiting the gut of the host. In any of the above compositions, the composition may be formulated for delivery to a microorganism inhabiting a bacteriocyte of the host and/or the gut of the host.
  • In some embodiments, the composition may be formulated for delivery to a plant. In some embodiments, the composition may be formulated for use in a host feeding station.
  • In any of the above compositions, the composition may be formulated as a liquid, a powder, granules, or nanoparticles. In some embodiments, the composition is formulated as one selected from the group consisting of a liposome, polymer, bacteria secreting peptide, and synthetic nanocapsule. In some embodiments, the synthetic nanocapsule delivers the composition to a target site in the host. In some embodiments, the target site is the gut of the host. In some embodiments, the target site is a bacteriocyte in the host.
  • In a further aspect, also provided herein are hosts that include any of the above compositions. In some embodiments, the host is an insect. In some embodiments, the insect is a mosquito, midge, louse, sandfly, tick, triatomine bug, tsetse fly, or flea. In certain embodiments, the insect is a mosquito. In certain embodiments, the insect is a tick. In certain embodiments, the insect is a mite. In certain embodiments, the insect is a louse.
  • Also provided herein is a system for modulating a host's fitness comprising a modulating agent that targets a microorganism that is required for a host's fitness, wherein the system is effective to modulate the host's fitness, and wherein the host is an insect. The modulating agent may include any of the compositions described herein. In some embodiments, the modulating agent is formulated as a powder. In some embodiments, the modulating agent is formulated as a solvent. In some embodiments, the modulating agent is formulated as a concentrate. In some embodiments, the modulating agent is formulated as a diluent. In some embodiments, the modulating agent is prepared for delivery by combining any of the previous compositions with a carrier.
  • In yet a further aspect, also provided herein are methods for modulating the fitness of an insect using any of the compositions described herein. In one instance, the method of modulating the fitness of an insect host includes delivering the composition of any one of the previous claims to the host, wherein the modulating agent targets the one or more microorganisms resident in the host, and thereby modulates the host's fitness. In another instance, the method of modulating microbial diversity in an insect host includes delivering the composition of any one of the previous claims to the host, wherein the modulating agent targets the one or more microorganisms resident in the host, and thereby modulates microbial diversity in the host.
  • In some embodiments of any of the above methods, the modulating agent may alter the levels of the one or more microorganisms resident in the host. In some embodiments of any of the above methods, the modulating agent may alter the function of the one or more microorganisms resident in the host. In some embodiments, the one or more microorganisms may be a bacterium and/or fungus. In some embodiments, the one or more microorganisms are required for host fitness. In some embodiments, the one or more microorganisms are required for host survival.
  • In some embodiments of any of the above methods, the delivering step may include providing the modulating agent at a dose and time sufficient to effect the one or more microorganisms, thereby modulating microbial diversity in the host. In some embodiments, the delivering step includes topical application of any of the previous compositions to a plant. In some embodiments, the delivering step includes providing the modulating agent through a genetically engineered plant. In some embodiments, the delivering step includes providing the modulating agent to the host as a comestible. In some embodiments, the delivering step includes providing a host carrying the modulating agent. In some embodiments the host carrying the modulating agent can transmit the modulating agent to one or more additional hosts.
  • In some embodiments of any of the above methods, the composition may be effective to increase the host's sensitivity to a pesticidal agent (e.g., a pesticide listed in Table 12). In some embodiments, the host is resistant to the pesticidal agent prior to delivery of the modulating agent. In some embodiments, the pesticidal agent is an allelochemical agent. In some embodiments, the allelochemical agent is caffeine, soyacystatin N, monoterpenes, diterpene acids, or phenolic compounds. In some embodiments, the composition is effective to selectively kill the host. In some embodiments, the composition is effective to decrease host fitness. In some embodiments, the composition is effective to decrease the production of essential amino acids and/or vitamins in the host.
  • In some embodiments of any of the above methods, the host is an insect. In some embodiments, the host is a vector for an animal pathogen. In some embodiments, the vector is a mosquito, midge, louse, sandfly, tick, triatomine bug, tsetse fly, or flea. In certain embodiments, the vector is a mosquito. In certain embodiments, the vector is a tick. In certain embodiments, the vector is a mite. In certain embodiments, the vector is a louse. In some embodiments, the animal pathogen is a virus, a protozoan, a bacterium, a protist, or a nematoda. In some embodiments, the virus is one belonging to the group Togaviridae, Flaviviridae, Bunyaviridae, Rhabdoviridae, or Orbiviridae. In some embodiments, the bacterium is one belonging to the genus Yersinia, Francisella, Rickettsia, Orientia, or Borrelia. In some embodiments, the protozoan is one belonging to the genus Plasmodium, Trypanosoma, Leishmania, or Babesia. In some embodiments, the nematode is one belonging to the genus Brugia. In some embodiments, the composition is effective to prevent or decrease transmission of the pathogen to animals. In some embodiments, the composition is effective to prevent or decrease horizontal or vertical transmission of the pathogen between hosts. In some embodiments, the composition is effective to decrease host fitness, host development, or vectorial competence.
  • In another aspect, also provided herein are screening assays to identify modulating agent that modulate the fitness of a host. In one instance, the screening assay to identify a modulating agent that modulates the fitness of a host, includes the steps of (a) exposing a microorganism that can be resident in the host to one or more candidate modulating agents and (b) identifying a modulating agent that decreases the fitness of the host.
  • In some embodiments of the screening assay, the modulating agent is a microorganism resident in the host. In some embodiments, the microorganism is a bacterium. In some embodiments, the bacterium, when resident in the host, decreases host fitness. In some embodiments of the screening assay, the modulating agent affects an allelochemical-degrading microorganism. In some embodiments, the modulating agent is a phage, an antibiotic, or a test compound. In some embodiments, the antibiotic is timentin or azithromycin.
  • In some embodiments of the screening assay, the host may be an invertebrate. In some embodiments, the invertebrate is an insect. In some embodiments, the insect is a mosquito. In some embodiments, the insect is a tick. In certain embodiments, the insect is a mite. In certain embodiments, the insect is a louse.
  • In any of the above embodiments of the screening assay, host fitness may be modulated by modulating the host microbiota.
  • Definitions
  • As used herein, the term “animals” refers to livestock or farm animals and other mammalian veterinary animals.
  • As used herein, the term “bacteriocin” refers to a peptide or polypeptide that possesses anti-microbial properties. Naturally occurring bacteriocins are produced by certain prokaryotes and act against organisms related to the producer strain, but not against the producer strain itself. Bacteriocins contemplated herein include, but are not limited to, naturally occurring bacteriocins, such as bacteriocins produced by bacteria, and derivatives thereof, such as engineered bacteriocins, recombinantly expressed bacteriocins, and chemically synthesized bacteriocins. In some instances, the bacteriocin is a functionally active variant of the bacteriocins described herein. In some instances, the variant of the bacteriocin has at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a bacteriocin described herein or a naturally occurring bacteriocin.
  • As used herein, the term “bacteriocyte” refers to a specialized cell found in certain insects where intracellular bacteria reside with symbiotic bacterial properties.
  • As used herein, the term “effective amount” refers to an amount of a modulating agent (e.g., a phage, lysin, bacteriocin, small molecule, or antibiotic) or composition including said agent sufficient to effect the recited result, e.g., to decrease or reduce the fitness of a host organism (e.g., insect, e.g., mosquito, tick, mite, louse); to reach a target level (e.g., a predetermined or threshold level) of a modulating agent concentration inside a target host; to reach a target level (e.g., a predetermined or threshold level) of a modulating agent concentration inside a target host gut; to reach a target level (e.g., a predetermined or threshold level) of a modulating agent concentration inside a target host bacteriocyte; to modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host.
  • As used herein, the term “fitness” refers to the ability of a host organism to survive, and/or to produce surviving offspring. Fitness of an organism may be measured by one or more parameters, including, but not limited to, life span, reproductive rate, mobility, body weight, and metabolic rate. Fitness may additionally be measured based on measures of activity (e.g., biting animals) or disease transmission (e.g., vector-vector transmission or vector-animal transmission).
  • As used herein, the term “gut” refers to any portion of a host's gut, including, the foregut, midgut, or hindgut of the host.
  • As used herein, the term “host” refers to an organism (e.g., insect, e.g., mosquito, louse, mite, or tick) carrying resident microorganisms (e.g., endogenous microorganisms, endosymbiotic microorganisms (e.g., primary or secondary endosymbionts), commensal organisms, and/or pathogenic microorganisms).
  • As used herein “decreasing host fitness” or “decreasing host fitness” refers to any disruption to host physiology, or any activity carried out by said host, as a consequence of administration of a modulating agent, including, but not limited to, any one or more of the following desired effects: (1) decreasing a population of a host by about 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 100% or more; (2) decreasing the reproductive rate of a host (e.g., insect, e.g., mosquito, tick, mite, louse) by about 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 100% or more; (3) decreasing the mobility of a host (e.g., insect, e.g., mosquito, tick, mite, louse) by about 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 100% or more; (4) decreasing the body weight of a host (e.g., insect, e.g., mosquito, tick, mite, louse) by about 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 100% or more; (5) increasing the metabolic rate or activity of a host (e.g., insect, e.g., mosquito, tick, mite, louse) by about 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 100% or more; (6) decreasing vector-vector pathogen transmission (e.g., vertical or horizontal transmission of a pathogen from one insect to another) by a host (e.g., insect, e.g., mosquito, tick, mite, louse) by about 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 100% or more; (7) decreasing vector-animal pathogen transmission (e.g., insect, e.g., mosquito, tick, mite, louse) by about 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 100% or more; (8) decreasing host (e.g., insect, e.g., mosquito, tick, mite, louse) lifespan by about 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 100% or more; (9) increasing host (e.g., insect, e.g., mosquito, tick, mite, louse) susceptibility to pesticides (e.g., insecticides) by about 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 100% or more; or (10) decreasing vector competence by a host (e.g., insect, e.g., mosquito, tick, mite, louse) by about 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 100% or more. A decrease in host fitness can be determined in comparison to a host organism to which the modulating agent has not been administered.
  • The term “insect” includes any organism belonging to the phylum Arthropoda and to the class Insecta or the class Arachnida, in any stage of development, i.e., immature and adult insects.
  • As used herein, “lysin” also known as endolysin, autolysin, murein hydrolase, peptidoglycan hydrolase, or cell wall hydrolase refers to a hydrolytic enzyme that can lyse a bacterium by cleaving peptidoglycan in the cell wall of the bacterium. Lysins contemplated herein include, but are not limited to, naturally occurring lysins, such as lysins produced by phages, lysins produced by bacteria, and derivatives thereof, such as engineered lysins, recombinantly expressed lysins, and chemically synthesized lysins. A functionally active variant of the bacteriocin may have at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a synthetic, recombinant, or naturally derived bacteriocin, including any described herein.
  • As used herein, the term “microorganism” refers to bacteria or fungi. Microorganisms may refer to microorganisms resident in a host organism (e.g., endogenous microorganisms, endosymbiotic microorganisms (e.g., primary or secondary endosymbionts)) or microorganisms exogenous to the host, including those that may act as modulating agents. As used herein, the term “target microorganism” refers to a microorganism that is resident in the host and impacted by a modulating agent, either directly or indirectly.
  • As used herein, the term “agent” or “modulating agent” refers to an agent that is capable of altering the levels and/or functioning of microorganisms resident in a host organism (e.g., insect, e.g., mosquito, tick, mite, louse), and thereby modulate (e.g., decrease) the fitness of the host organism (e.g., insect, e.g., mosquito, tick, mite, louse).
  • As used herein, the term “pesticide” or “pesticidal agent” refers to a substance that can be used in the control of agricultural, environmental, or domestic/household pests, such as insects, fungi, bacteria, or viruses. The term “pesticide” is understood to encompass naturally occurring or synthetic insecticides (larvicides or adulticides), insect growth regulators, acaricides (miticides), nematicides, ectoparasiticides, bactericides, fungicides, or herbicides (substance which can be used in agriculture to control or modify plant growth). Further examples of pesticides or pesticidal agents are listed in Table 12. In some instances, the pesticide is an allelochemical. As used herein, “allelochemical” or “allelochemical agent” is a substance produced by an organism that can effect a physiological function (e.g., the germination, growth, survival, or reproduction) of another organism (e.g., a host insect).
  • As used herein, the term “peptide,” “protein,” or “polypeptide” encompasses any chain of naturally or non-naturally occurring amino acids (either D- or L-amino acids), regardless of length (e.g., at least, 2, 3, 4, 5, 6, 7, 10, 12, 14, 16, 18, 20, 25, 30, 40, 50, 100, or more amino acids), the presence or absence of post-translational modifications (e.g., glycosylation or phosphorylation), or the presence of, e.g., one or more non-amino acyl groups (for example, sugar, lipid, etc.) covalently linked to the peptide, and includes, for example, natural proteins, synthetic, or recombinant polypeptides and peptides, hybrid molecules, peptoids, and peptidomimetics.
  • As used herein, “percent identity” between two sequences is determined by the BLAST 2.0 algorithm, which is described in Altschul et al., (1990) J. Mol. Biol. 215:403-410. Software for performing BLAST analyses is publicly available through the National Center for Biotechnology Information.
  • As used herein, the term “bacteriophage” or “phage” refers to a virus that infects and replicates in bacteria. Bacteriophages replicate within bacteria following the injection of their genome into the cytoplasm and do so using either a lytic cycle, which results in bacterial cell lysis, or a lysogenic (non-lytic) cycle, which leaves the bacterial cell intact. The phage may be a naturally occurring phage isolate, or an engineered phage, including vectors, or nucleic acids that encode either a partial phage genome (e.g., including at least all essential genes necessary to carry out the life cycle of the phage inside a host bacterium) or the full phage genome.
  • As used herein, the term “plant” refers to whole plants, plant organs, plant tissues, seeds, plant cells, seeds, and progeny of the same. Plant cells include, without limitation, cells from seeds, suspension cultures, embryos, meristematic regions, callus tissue, leaves, roots, shoots, gametophytes, sporophytes, pollen, and microspores. Plant parts include differentiated and undifferentiated tissues including, but not limited to the following: roots, stems, shoots, leaves, pollen, seeds, tumor tissue, and various forms of cells and culture (e.g., single cells, protoplasts, embryos, and callus tissue). The plant tissue may be in a plant or in a plant organ, tissue, or cell culture. In addition, a plant may be genetically engineered to produce a heterologous protein or RNA, for example, of any of the modulating agents in the methods or compositions described herein.
  • As used herein, the term “vector” refers to an insect that can carry or transmit an animal pathogen from a reservoir to an animal. Exemplary vectors include insects, such as those with piercing-sucking mouthparts, as found in Hemiptera and some Hymenoptera and Diptera such as mosquitoes, bees, wasps, midges, lice, tsetse fly, fleas and ants, as well as members of the Arachnidae such as ticks and mites.
  • Other features and advantages of the invention will be apparent from the following Detailed Description and the Claims.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The figures are meant to be illustrative of one or more features, aspects, or embodiments of the invention and are not intended to be limiting.
  • FIG. 1A-1G show shows images of different antibiotic delivery systems. First instar LSR-1 aphids were treated with different therapeutic solutions by delivery through plants (FIG. 1A), leaf coating (FIG. 1B), microinjection (FIG. 1C), and topical delivery (FIG. 1D).
  • FIG. 2A-2C show the delay in aphid development during rifampicin treatment in first instar LSR-1 aphids treated by delivery through plants with three different conditions: artificial diet without essential amino acids (AD only), artificial diet without essential amino acids with 100 μg/ml rifampicin (AD+Rif), and artificial diet with 100 μg/ml rifampicin and essential amino acids (AD+Rif+EAA). FIG. 2A is a series of graphs showing the percentage of living aphids at each developmental stage (sample size=33 aphids/group). FIG. 2B shows representative images from each treatment taken at 12 days. Scale bars 2.5 mm. FIG. 2C shows area measurements from aphid bodies showing the drastic effect of rifampicin treatment. Adding back essential amino acids partially rescues development defects.
  • FIG. 3 shows that rifampicin treatment resulted in aphid death. Survival was monitored daily for LSR-1 aphids treated by delivery through plants with artificial diet without essential amino acids (AD only), artificial diet without essential amino acids with 100 ug/ml rifampicin (AD+Rif), and artificial diet with 100 ug/ml rifampicin and (AD+Rif+EAA). Number in parentheses represents number of aphids in each group. Statistical significance was determined by Log-Rank Test and the following statistically significant differences were determined: AD only vs. AD+Rif, p<0.0001 and AD+Rif vs. AD+Rif+EAA, p=0.017.
  • FIG. 4 is a graph showing that rifampicin treatment resulted in loss of reproduction in aphids. First instar LSR-1 aphids were treated by delivery through plants with artificial diet without essential amino acids (AD only), artificial diet without essential amino acids with 100 ug/ml rifampicin (AD+Rif), and artificial diet with 100 ug/ml rifampicin and (AD+Rif+EAA) and the number of offspring produced each day after aphid reached adulthood was measured. Shown is the mean number of offspring produced per day after aphid reached adulthood ±S.D.
  • FIG. 5 is a graph showing that rifampicin treatment eliminated endosymbiotic Buchnera. Symbiont titer was determined for the different conditions at 7 days post-treatment. DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA±SD of 3 aphids per group. Statistically significant differences were determined using a one-way-ANOVA followed by Tukey's Post-Test; *, p<0.05.
  • FIGS. 6A and 6B show that rifampicin treatment delivered through leaf coating delayed aphid development. First instar eNASCO aphids were treated by coating leaves with 100 μl of two different solutions: solvent control (0.025% Silwet L-77), and 50 μg/ml rifampicin. FIG. 6A is a series of graphs showing the developmental stage over time for each condition. Shown is the percentage of living aphids at each developmental stage (sample size=20 aphids/group). FIG. 6B is a graph showing area measurements from aphid bodies showing the drastic effect of rifampicin coated leaves on aphid size. Statistically significant differences were determined using a one-way-ANOVA followed by Tukey's Post-Test; *, p<0.05.
  • FIG. 7 shows that rifampicin treatment delivered through leaf coating resulted in aphid death. Survival was monitored daily for eNASCO aphids treated by coating leaves with 100 μl of two different solutions: solvent control (Silwet L-77), and 50 μg/ml rifampicin. Treatment affects survival rate of aphids.
  • FIG. 8 shows that rifampicin treatment delivered through leaf coating eliminated endosymbiotic Buchnera. Symbiont titer was determined for the two conditions at 6 days post-treatment. DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA±SD. Statistically significant differences were determined using a one-way-ANOVA followed by Tukey's Post-Test; *, p<0.05.
  • FIG. 9 is a graph showing rifampicin treatment by microinjection eliminated endosymbiotic Buchnera. Symbiont titer was determined 4 days post-injection with the indicated conditions. Control sample is the solvent, 0.025% Silwet L-77 described before. DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA±SD. Statistically significant differences were determined using a one-way-ANOVA followed by Tukey's Post-Test; *, p<0.05.
  • FIG. 10 is a graph showing that rifampicin treatment delivered through topical treatment eliminated endosymbiotic Buchnera. Symbiont titer was determined 3 days post-spraying with: solvent (silwet L-77) or the rifampicin solution diluted in solvent. DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA±SD. Statistically significant differences were determined using a one-way-ANOVA followed by Tukey's Post-Test; *, p<0.05.
  • FIG. 11 shows a panel of graphs demonstrating that 1st and 2nd instar LSR-1 aphids were placed on leaves perfused with water plus food coloring or 50 μg/ml rifampicin in water plus food coloring. Developmental stage was measured over time for each condition. Shown is the percentage of living aphids at each developmental stage (sample size=74-81 aphids/group).
  • FIG. 12 shows a graph demonstrating survival of 1st and 2nd instar LSR-1 aphids placed on leaves perfused with water plus food coloring or 50 μg/ml rifampicin in water plus food coloring. Number in parentheses represents the number of aphids in each group. Statistical significance was determined by Log-Rank Test.
  • FIG. 13 shows a graph demonstrating symbiont titer determined 8 days post-treatment with leaves perfused with water and food coloring or rifampicin plus water and food coloring. DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA±SD. Number in box indicates the median of the experimental group.
  • FIG. 14 shows a panel of graphs demonstrating 1st and 2nd instar LSR-1 aphids treated via leaf injection and through the plant with water plus food coloring or 100 μg/ml rifampicin in water plus food coloring. Developmental stage was measured over time for each condition. Shown is the percentage of living aphids at each developmental stage (sample size=49-50 aphids/group).
  • FIG. 15 is a graph demonstrating survival of 1st and 2nd instar LSR-1 aphids placed on leaves perfused and treated with water plus food coloring or 100 μg/ml rifampicin in water plus food coloring. Number in parentheses represents the number of aphids in each group. A Log-Rank Test was performed and determined that there were no statistically significant differences between groups.
  • FIGS. 16A and 16B are graphs showing symbiont titer determined 6 (16A) and 8 (16B) days post-treatment in aphids feeding on leaves perfused and treated with water and food coloring or rifampicin plus water and food coloring. DNA was extracted from aphids and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA±SD. Number in box indicates the median of the experimental group.
  • FIG. 17 is a panel of graphs showing that 1st and 2nd instar LSR-1 aphids were treated with control solutions (water and Silwet L-77) or a combination of treatments with 100 μg/ml rifampicin. Developmental stage was measured over time for each condition. Shown is the percentage of living aphids at each developmental stage (sample size=76-80 aphids/group).
  • FIG. 18 is a graph showing 1st and 2nd instar LSR-1 aphids were treated with control solutions of a combination of treatments containing rifampicin. Number in parentheses represents the number of aphids in each group. A Log-Rank Test was performed and determined that there were no statistically significant differences between groups.
  • FIG. 19 is a graph showing symbiont titer determined at 7 days post-treatment with control or rifampicin solutions. DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA±SD. Number in box indicates the median of the experimental group. Statistically significant differences were determined by t-test.
  • FIG. 20 is an image showing the chitosan delivery system. A. pisum aphids were treated with a therapeutic solution by delivery through leaf perfusion and through the plants as shown.
  • FIG. 21 is a panel of graphs showing that chitosan treatment resulted in delayed aphid development. First and second instar A. pisum aphids were treated by delivery through plants and leaf perfusion with the control solution (Water), and 300 ug/ml chitosan in water. Developmental stage was monitored throughout the experiment. Shown are the percent of aphids at each developmental stage (1st instar, 2nd instar, 3rd instar, 4th instar, 5th instar, or 5R which represents a reproducing 5th instar) per treatment group.
  • FIG. 22 is a graph showing there was a decrease in insect survival upon treatment with chitosan. First and second instar A. pisum aphids were treated by delivery through plants and leaf perfusion with just water or chitosan solution and survival was monitored daily over the course of the experiment. Number in parentheses represents the total number of aphids in the treatment group.
  • FIG. 23 is a graph showing treatment with chitosan reduced endosymbiotic Buchnera. First and second instar A. pisum aphids were treated by delivery through plants and leaf perfusion with water or 300 ug/ml chitosan in water. At 8 days post-treatment, DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA±SD of 6 aphids/group. The median value for each group is shown in box.
  • FIG. 24 is a panel of graphs showing treatment with nisin resulted in delayed aphid development. First and second instar LSR-2 A. pisum aphids were treated with water (control) or 1.6 or 7 mg/ml nisin via delivery by leaf injection and through the plant and development was measured over time. Shown are the percent of aphids at each life stage (1st, 2nd, 3rd, 4th, 5th, and 5R (reproducing 5th) instar) at the indicated time point. N=56-59 aphids/group.
  • FIG. 25 is a graph showing there was a dose dependent decrease in insect survival upon treatment with nisin. First and second instar LSR-1 A. pisum aphids were treated with water (control) or 1.6 or 7 mg/ml nisin via delivery by leaf injection and through the plant and survival was monitored over time. Number in parentheses indicates the number of aphids/group. Statistically significant differences were determined by Log Rank (Mantel-Cox) test.
  • FIG. 26 is a graph showing treatment with nisin reduced endosymbiotic Buchnera. First and second instar LSR-1 A. pisum aphids were treated with water (control) or 1.6 mg/ml nisin via delivery by leaf injection and through the plant and DNA was extracted from select aphids at eight days post-treatment and used for qPCR to determine Buchnera copy numbers. Shown are the mean Buchnera/aphid ratios for each treatment+/−SEM. Number in the box above each experimental group indicates the median value for that group. Each data point represents a single aphid.
  • FIG. 27 is a panel of graphs showing treatment with levulinic acid resulted in delayed aphid development. First and second instar eNASCO A. pisum aphids were treated with water (control) or 0.03 or 0.3% levulinic acid via delivery by leaf injection and through the plant and development was measured over time. Shown are the percent of aphids at each life stage (1st, 2nd, 3rd, 4th, and 5th instar) at the indicated time point. N=57-59 aphids/group.
  • FIG. 28 is a graph showing there was a decrease in insect survival upon treatment with levulinic acid. First and second instar eNASCO A. pisum aphids were treated with water (control) or 0.03 or 0.3% levulinic acid via delivery by leaf injection and through the plant and survival was monitored over time. N=57-59 aphids/group. Statistically significant differences were determined by Log Rank (Mantel-Cox) test; **, p<0.01.
  • FIG. 29 is a panel of graphs showing treatment with levulinic acid reduced endosymbiotic Buchnera. First and second instar eNASCO A. pisum aphids were treated with water (control) or 0.03 or 0.3% levulinic acid via delivery by leaf injection and through the plant and DNA was extracted from select aphids at seven and eleven days post-treatment and used for qPCR to determine Buchnear copy numbers. Shown are the mean Buchnera/aphid ratios for each treatment+/−SEM. Statistically significant differences were determined by One-way ANOVA and Dunnett's Multiple Comparison Test; *, p<0.05. Each data point represents a single aphid.
  • FIGS. 30A and 30B show graphs demonstrating that gossypol treatment resulted in delayed aphid development. First and second instar A. pisum aphids were treated by delivery through plants with artificial diet without essential amino acids (AD only), and artificial diet without essential amino acids with different concentrations of gossypol (0.05%, 0.25% and 0.5%). Developmental stage was monitored throughout the experiment. FIG. 30A is a series of graphs showing the mean number of aphids at each developmental stage (1st instar, 2nd instar, 3rd instar, 4th instar, 5th instar, or 5R which represents a reproducing 5th instar) per treatment group. At the indicated time, aphids were imaged and their size was determined using Image J. FIG. 30B is a graph showing the mean aphid area ±SD of artificial diet treated (Control) or gossypol treated aphids. Statistical significance was determined using a One-Way ANOVA followed by Tukey's post-test. *, p<0.05. **, p<0.01.
  • FIG. 31 is a graph showing a dose-dependent decrease in survival of aphids upon treatment with the allelochemical gossypol. First and second instar A. pisum aphids were treated by delivery through plants with artificial diet without essential amino acids (AD no EAA), artificial diet without essential amino acids with 0.5% gossypol acetic acid (0.5% gossypol), artificial diet without essential amino acids with 0.25% gossypol acetic acid (0.25% gossypol), and artificial diet without essential amino acids and 0.05% gossypol acetic acid (0.05% gossypol) and survival was monitored daily over the course of the experiment. Number in parentheses represents the essential amino acids number of aphids in each group. Statistically significant differences were determined by Log-Rank test and AD no EAA and 0.5% gossypol are significantly different, p=0.0002.
  • FIGS. 32A and 32B are two graphs showing that treatment with 0.25% gossypol resulted in decreased fecundity. First and second instar A. pisum aphids were treated by delivery through plants with artificial diet without essential amino acids (AD5-2 no EAA), or artificial diet without essential amino acids with 0.25% gossypol acetic acid (AD5-2 no EAA+0.25% gossypol), and fecundity was determined throughout the time course of the experiment. FIG. 32A shows the mean day ±SD at which aphids began producing offspring was measured and gossypol treatment delayed production of offspring. FIG. 32B shows the mean number of offspring produced after the aphid began a reproducing adult ±SD was measured and gossypol treatment results in decreased number of offspring produced. Each data point represents one aphid.
  • FIG. 33 is a graph showing that treatment with different concentrations of gossypol reduced endosymbiotic Buchnera. First and second instar A. pisum aphids were treated by delivery through plants with artificial diet without essential amino acids (Control)) or artificial diet without essential amino acids with 0.5%, 0.25%, or 0.05% gossypol. At 5 or 13 days post-treatment, DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA±SD of 2-6 aphids/group. Statistically significant differences were determined by Unpaired T-test; *, p<0.05.
  • FIG. 34 is a graph showing that microinjection of gossypol resulted in decreased Buchnera levels in aphids. A. pisum LSR-1 aphids <3rd instar stage (nymphs) were injected with 20 nl of artificial diet without essential amino acids (AD) or artificial diet without essential amino acids with 0.05% gossypol (gossypol (0.05%)). Three days after injection, DNA was extracted from aphids and Buchnera levels were assessed by qPCR. Shown are the mean ratios of Buchnera/aphid DNA±SD. Each data point represents one aphid.
  • FIG. 35 is a panel of graphs showing Trans-cinnemaldehyde treatment resulted in delayed aphid development. First and second instar A. pisum aphids were treated by delivery through plants with water and water with different concentrations of trans-cinnemaldehyde (TC, 0.05%, 0.5%, and 5%). Developmental stage was monitored throughout the experiment. Shown are the mean number of aphids at each developmental stage (1st instar, 2nd instar, 3rd instar, 4th instar, 5th instar, or 5R which represents a reproducing 5th instar) per treatment group. N=40-49 aphids/experimental group.
  • FIG. 36 is a graph showing there was a dose-dependent decrease in survival upon treatment the natural antimicrobial trans-cinnemaldehyde. First and second instar A. pisum aphids were treated by delivery through plants with water and water with different concentrations of trans-cinnemaldehyde (TC, 0.05%, 0.5%, and 5%). Survival was monitored throughout the course of the treatment. Statistically significant differences were determined by Log-Rank test. N=40-49 aphids/group.
  • FIG. 37 is a graph showing treatment with different concentrations of trans-cinnemaldehyde reduced endosymbiotic Buchnera. First and second instar A. pisum aphids were treated by delivery through plants with water and water with different concentrations of trans-cinnemaldehyde (0.05%, 0.5%, and 5%). At 3 days post-treatment, DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA±SD of 2-11 aphids/group. The median of each treatment group is shown in the box above the data points. Statistically significant differences were determined by Unpaired T-test; *, p<0.05. There was a statistically significant difference between the water control and the 0.5% trans-cinnemaldehyde group.
  • FIG. 38 is a panel of graphs showing treatment with scorpion peptide Uy192 resulted in delayed aphid development. First and second instar A. pisum aphids were treated by delivery through plants and leaf perfusion with the control solution (water), and 100 ug/ml Uy192 in water. a) developmental stage was monitored throughout the experiment. Shown are the percent of aphids at each developmental stage (1st instar, 2nd instar, 3rd instar, 4th instar, 5th instar, or 5R which represents a reproducing 5th instar) per treatment group.
  • FIG. 39 is a graph showing there was a decrease in insect survival upon treatment with the scorpion AMP Uy192. First and second instar A. pisum aphids were treated by delivery through plants and leaf perfusion with just water or Uy192 solution and survival was monitored daily over the course of the experiment. Number in parentheses represents the total number of aphids in the treatment group.
  • FIG. 40 is a graph showing treatment with Uy192 reduced endosymbiotic Buchnera. First and second instar A. pisum aphids were treated by delivery through plants and leaf perfusion with water or 100 ug/ml Uy192 in water, at 8 days post-treatment, DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA±SD of 2-6 aphids/group. The median value for each group is shown in box.
  • FIG. 41 is a graph showing a decrease in survival in aphids microinjected with scorpion peptides D10 and D3. LSR-1 A. pisum aphids were microinjected with water (control) or with 100 ng of either scorpion peptide D3 or D10. After injection, aphids were released to fava bean leaves and survival was monitored throughout the course of the experiment. The number in parentheses indicates the number of aphids in each experimental treatment group.
  • FIG. 42 is a graph showing a decrease in endosymbiont titers upon injection with scorpion peptides D3 and D10. LSR-1 A. pisum aphids were microinjected with water (control) or with 100 ng of either scorpion peptide D3 or D10. After injection, aphids were released to fava bean leaves and at 5 days post-treatment, DNA was extracted from the remaining living aphids and qPCR was performed to determine the ratio of Buchnera/aphid DNA. Shown are the mean±SD of each treatment group. N=2-9 aphids/group. The number above each treatment group in the box represents the median of the dataset.
  • FIG. 43 is a graph showing a decrease in insect survival upon treatment with a cocktail of scorpion AMPs. First and second instar eNASCO aphids were treated by delivery through leaf perfusion and through plants with a cocktail of scorpion peptides (40 μg/ml of each of Uy17, D3, UyCt3, and D10) and survival was monitored over the course of the experiment. The number in parentheses represents the number of aphids in each treatment group.
  • FIG. 44 is a panel of graphs showing treatment with scorpion peptide fused to a cell penetrating peptide resulted in delayed aphid development. First instar LSR-2 A. pisum aphids were treated with water (control) or 100 μg/ml Uy192+CPP+FAM via delivery by leaf injection and through the plant and development was measured over time. Shown are the percent of aphids at each life stage (1st, 2nd, 3rd, 4th, 5th, and 5R (reproducing 5th) instar) at the indicated time point. N=90 aphids/group.
  • FIG. 45 is a graph showing treatment of aphids with a scorpion peptide fused to a cell penetrating peptide increased mortality. First instar LSR-1 A. pisum aphids were treated with water or 100 μg/ml UY192+CPP+FAM (peptide) in water delivered by leaf injection and through the plant. Survival was monitored over time. The number in parentheses indicates the number of aphids/group. Statistically significant differences were determined by Log Rank (Mantel-Cox) test and there is a significant difference between the two experimental groups (p=0.0036).
  • FIG. 46 is a graph showing treatment with Uy192+CPP+FAM reduced endosymbiotic Buchnera. First instar LSR-1 A. pisum aphids were treated with water or 100 μg/ml Uy192+CPP+FAM (peptide) in water delivered by leaf injection and through the plant. DNA was extracted from select aphids at five days post-treatment and used for qPCR to determine Buchnera copy numbers. Shown are the mean Buchnera/aphid ratios for each treatment+/−SEM. Number in the box above each experimental group indicates the median value for that group. Each data point represents a single aphid. Statistically significant differences were determined by Student's T-test; ****, p<0.0001.
  • FIG. 47 is a panel of images showing Uy192+CPP+FAM penetrated bacteriocyte membranes. Bacteriocytes were dissected from the aphids and incubated with 250 ug/ml of the Uy192+CPP+FAM peptide for 30 min. Upon washing and imaging, the Uy192+CPP+FAM can be seen at high quantities inside the bacteriocytes.
  • FIG. 48A and FIG. 48B are a panel of graphs showing Pantothenol treatment delayed aphid development. First instar and second eNASCO aphids were treated by delivery through plants with three different conditions: artificial diet without essential amino acids (AD no EAA), artificial diet without essential amino acids with 10 uM pantothenol (10 uM pantothenol), and artificial diet without essential amino acids with 100 uM pantothenol (100 uM pantothenol), artificial diet without essential amino acids with 100 uM pantothenol, and artificial diet without essential amino acids with 10 uM pantothenol. FIG. 48A shows developmental stage monitored over time for each condition. FIG. 48B shows relative area measurements from aphid bodies showing the drastic effect of pantothenol treatment.
  • FIG. 49 is a graph showing that treatment with pantothenol increased aphid mortality. Survival was monitored daily for eNASCO aphids treated by delivery through plants with artificial diet without essential amino acids, or artificial diet without essential amino acids containing 10 or 100 uM pantothenol. Number in parentheses represents number of aphids in each group.
  • FIGS. 50A, 50B, and 50C are a panel of graphs showing Pantothenol treatment resulted in loss of reproduction. First and second instar eNASCO aphids were treated by delivery through plants with artificial diet without essential amino acids or with artificial diet without essential amino acids with 10 or 100 uM pantothenol. FIG. 50A shows the fraction of aphids surviving to maturity and reproducing. FIG. 50B shows the mean day aphids in each group began reproducing. Shown is the mean day an aphid began reproducing ±SD. FIG. 50C shows the mean number of offspring produced per day after an aphid began reproducing. Shown are the mean number of offspring/day ±SD.
  • FIG. 51 is a graph showing Pantothenol treatment did not affect endosymbiotic Buchnera. Symbiont titer was determined for the different conditions at 8 days post-treatment. DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown is the mean ratio of Buchnera DNA to aphid DNA±SD of 6 aphids per group.
  • FIG. 52 is a panel of graphs showing Pantothenol treatment delivered through plants did not affect aphid development. First instar eNASCO aphids were treated by coating leaves with 100 μl of two different solutions: solvent control (0.025% Silwet L-77), and 10 uM pantothenol and the developmental stage was measured over time for each condition. Shown is the percentage of living aphids at each developmental stage (sample size=20 aphids/group).
  • FIG. 53 is a graph showing Pantothenol treatment delivered through leaf coating resulted in aphid death. Survival was monitored daily for eNASCO aphids treated by coating leaves with 100 μl of two different solutions: solvent control (Silwet L-77), and 10 uM pantothenol. Treatment affects survival rate of aphids. Sample size=20 aphids/group. Log-Rank Mantel Cox test was used to determine whether there were statistically significant differences between groups and identified that the two group are significantly different (p=0.0019).
  • FIGS. 54A and 54B are a panel of graphs showing treatment with a cocktail of amino acid analogs delayed aphid development. First instar LSR-1 aphids were treated by delivery through leaf perfusion and through plants with water or a cocktail of amino acid analogs in water (AA cocktail). FIG. 54A shows the developmental stage measured over time for each condition. Shown are the percentage of living aphids at each developmental stage. FIG. 54B shows the area measurements from aphid bodies showing the drastic effect of treatment with an amino acid analog cocktail (AA cocktail). Statistically significant differences were determined using a Student's T-test; ****, p<0.0001.
  • FIG. 55 is a graph showing treatment with a cocktail of amino acid analogs eliminated endosymbiotic Buchnera. Symbiont titer was determined for the different conditions at 6 days post-treatment. DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown are the mean ratios of Buchnera DNA to aphid DNA±SD of 19-20 aphids per group. Each data point represents an individual aphid. Statistically significant differences were determined using a Student's T-test; *, p<0.05.
  • FIGS. 56A and 56B is a panel of graphs showing treatment with a combination of three agents delayed aphid development. First instar LSR-1 aphids were treated by delivery through leaf perfusion and through plants with water or a combination of three agents in water (Pep-Rif-Chitosan). FIG. 56A shows the developmental stage measured over time for each condition. Shown are the percentage of living aphids at each developmental stage. FIG. 56B shows the area measurements from aphid bodies showing the drastic effect of treatment with a combination of three treatments (Pep-Rif-Chitosan). Statistically significant differences were determined using a Student's T-test; ****, p<0.0001.
  • FIG. 57 is a graph showing treatment with a combination of a peptide, antibiotic, and natural antimicrobial agent increased aphid mortality. LSR-1 aphids were treated with water or a combination of three treatments (Pep-Rif-Chitosan) and survival was monitored daily after treatment.
  • FIG. 58 is a graph showing treatment with a combination of a peptide, antibiotic, and natural antimicrobial agent eliminated endosymbiotic Buchnera. Symbiont titer was determined for the different conditions at 6 days post-treatment. DNA from aphids was extracted and qPCR was performed to determine the ratio of Buchnera DNA to aphid DNA. Shown are the mean ratios of Buchnera DNA to aphid DNA±SD of 20-21 aphids per group. Each data point represents an individual aphid.
  • FIGS. 59A and 59B are a panel of images showing ciprofloxacin coated and penetrated corn kernels. Corn kernels were soaked in water (no antibiotic) or the indicated concentration of ciprofloxacin in water and whole kernels or kernel were tested to see whether they can inhibit the growth of E. coli DH5α. FIG. 59A shows bacterial growth in the presence of a corn kernel soaked in water without antibiotics and FIG. 59B shows the inhibition of bacterial growth when whole or half corn kernels that have been soaked in antibiotics are placed on a plate spread with E. coli.
  • FIG. 60 is a graph showing that adult S. zeamais weevils were treated with ciprofloxacin (250 ug/ml or 2.5 mg/ml) or mock treated with water. After 18 days of treatment, genomic DNA was isolated from weevils and the amount of Sitophilus primary endosymbiont was determined by qPCR. Shown is the mean±SEM of each group. Each data point represents one weevil. The median of each group is listed above the dataset.
  • FIGS. 61A and 61B are graphs showing weevil development after treatment with ciprofloxacin. FIG. 61A shows individual corn kernels cut open 25 days after adults were removed from one replicate each of the initial corn kernels soaked/coated with water (control) or ciprofloxacin (250 ug/ml or 2.5 mg/ml) and examined for the presence of larvae, pupae, or almost fully developed (adult) weevils. Shown is the percent of each life stage found in kernels from each treatment group. The total number of offspring found in the kernels from each treatment group is indicated above each dataset. FIG. 61B shows genomic DNA isolated from offspring dissected from corn kernels from the control (water) and 2.5 mg/ml ciprofloxacin treatment groups and qPCR was done to measure the amount of Sitophilus primary endosymbiont present. Shown are the mean±SD for each group. Statistically significant differences were determined by unpaired t-test; ***, p≤0.001.
  • FIGS. 62A and 62B are graphs showing the two remaining replicates of corn kernels mock treated (water) or treated with 250 ug/ml or 2.5 mg/ml ciprofloxacin monitored for the emergence of offspring after mating pairs were removed (at 7 days post-treatment). FIG. 62A shows the mean number of newly emerged weevils over time ±SD for each treatment group. FIG. 62B shows the mean number ±SEM of emerged weevils for each treatment group at 43 days after mating pairs were removed.
  • FIG. 63 is a panel of graphs showing rifampicin and doxycycline treatment resulted in mite mortality. Survival was monitored daily for untreated two-spotted spider mites and mites treated with 250 μg/ml rifampicin and 500 μg/ml doxycycline in 0.025% Silwet L-77.
  • FIG. 64 is a panel of graphs showing the results of a Seahorse flux assay for bacterial respiration. Bacteria were grown to logarithmic phase and loaded into Seahorse XFe96 plates for temporal measurements of oxygen consumption rate (OCR) and extracellular acidification rate (ECAR) as described in methods. Treatments were injected into the wells after approximately 20 minutes and bacteria were monitored to detect changes in growth. Rifampicin=100 μg/mL; Chloramphenicol=25 μg/mL; Phages (T7 for E. coli and ϕSmVL-C1 for S. marcescens) were lysates diluted either 1:2 or 1:100 in SM Buffer. The markers on each line are solely provided as indicators of the condition to which each line corresponds, and are not indicative of data points.
  • FIG. 65 is a graph showing phage against S. marcescens reduced fly mortality. Flies that were pricked with S. marcescens were all dead within a day, whereas a sizeable portion of the flies that were pricked with both S. marcescens and the phage survived for five days after the treatment. Almost all of the control flies which were not treated in anyway survived till the end of the experiment. Log-rank test was used to compare the curves for statistical significance, asterisk denotes p<0.0001.
  • DETAILED DESCRIPTION
  • Provided herein are methods and compositions useful for animal health, e.g., for altering a level, activity, or metabolism of one or more microorganisms resident in a host insect (e.g., arthropod, e.g., insect, e.g., an animal pathogen vector, e.g., mosquito, mite, louse, or tick), the alteration resulting in a decrease in the fitness of the host. The invention features a composition that includes a modulating agent (e.g., phage, peptide, small molecule, antibiotic, or combinations thereof) that can alter the host's microbiota in a manner that is detrimental to the host. By disrupting microbial levels, microbial activity, microbial metabolism, or microbial diversity, the modulating agent described herein may be used to decrease the fitness of a variety of insects that carry vector-borne pathogens that cause disease in animals.
  • The methods and compositions described herein are based in part on the examples provided herein, which illustrate how modulating agents, for example antibiotics (e.g., oxytetracycline, doxycycline, or a combination thereof) can be used to target symbiotic microorganisms in a host (e.g., endosymbionts in insect vectors of animal pathogens, e.g., endosymbiotic Wolbachia in mosquitos or Rickettsia in ticks) to decrease the fitness of the host by altering the level, activity, or metabolism of the microorganisms within the hosts. Oxytetracycline and doxycycline are representative examples of antibiotics useful for this purpose. On this basis the present disclosure describes a variety of different approaches for the use of agents that alter a level, activity, or metabolism of one or more microorganisms resident in a host (e.g., a vector of an animal pathogen, e.g., a mosquito, mite, louse or a tick) the alteration resulting in a decrease in the host's fitness.
  • I. Hosts
  • i. Hosts
  • The methods and compositions provided herein may be used with any insect host that is considered a vector for a pathogen that is capable of causing disease in animals.
  • For example, the insect host may include, but is not limited to those with piercing-sucking mouthparts, as found in Hemiptera and some Hymenoptera and Diptera such as mosquitoes, bees, wasps, midges, lice, tsetse fly, fleas and ants, as well as members of the Arachnidae such as ticks and mites; order, class or family of Acarina (ticks and mites) e.g. representatives of the families Argasidae, Dermanyssidae, Ixodidae, Psoroptidae or Sarcoptidae and representatives of the species Amblyomma spp., Anocenton spp., Argas spp., Boophilus spp., Cheyletiella spp., Chorioptes spp., Demodex spp., Dermacentor spp., Denmanyssus spp., Haemophysalis spp., Hyalomma spp., Ixodes spp., Lynxacarus spp., Mesostigmata spp., Notoednes spp., Ornithodoros spp., Ornithonyssus spp., Otobius spp., otodectes spp., Pneumonyssus spp., Psoroptes spp., Rhipicephalus spp., Sancoptes spp., or Trombicula spp.; Anoplura (sucking and biting lice) e.g. representatives of the species Bovicola spp., Haematopinus spp., Linognathus spp., Menopon spp., Pediculus spp., Pemphigus spp., Phylloxera spp., or Solenopotes spp.; Diptera (flies) e.g. representatives of the species Aedes spp., Anopheles spp., Calliphora spp., Chrysomyia spp., Chrysops spp., Cochliomyia spp., Cw/ex spp., Culicoides spp., Cuterebra spp., Dermatobia spp., Gastrophilus spp., Glossina spp., Haematobia spp., Haematopota spp., Hippobosca spp., Hypoderma spp., Lucilia spp., Lyperosia spp., Melophagus spp., Oestrus spp., Phaenicia spp., Phlebotomus spp., Phormia spp., Acari (sarcoptic mange) e.g., Sarcoptidae spp., Sarcophaga spp., Simulium spp., Stomoxys spp., Tabanus spp., Tannia spp. or Zzpu/alpha spp.; Mallophaga (biting lice) e.g. representatives of the species Damalina spp., Felicola spp., Heterodoxus spp. or Trichodectes spp.; or Siphonaptera (wingless insects) e.g. representatives of the species Ceratophyllus spp., Xenopsylla spp; Cimicidae (true bugs) e.g. representatives of the species Cimex spp., Tritominae spp., Rhodinius spp., or Triatoma spp.
  • In some instances, the insect is a blood-sucking insect from the order Diptera (e.g., suborder Nematocera, e.g., family Colicidae). In some instances, the insect is from the subfamilies Culicinae, Corethrinae, Ceratopogonidae, or Simuliidae. In some instances, the insect is of a Culex spp., Theobaldia spp., Aedes spp., Anopheles spp., Aedes spp., Forciponiyia spp., Culicoides spp., or Helea spp.
  • In certain instances, the insect is a mosquito. In certain instances, the insect is a tick. In certain instances, the insect is a mite. In certain instances, the insect is a biting louse.
  • ii. Host Fitness
  • The methods and compositions provided herein may be used to decrease the fitness of any of the hosts described herein. The decrease in fitness may arise from any alterations in microorganisms resident in the host, wherein the alterations are a consequence of administration of a modulating agent and have detrimental effects on the host.
  • In some instances, the decrease in host fitness may manifest as a deterioration or decline in the physiology of the host (e.g., reduced health or survival) as a consequence of administration of a modulating agent. In some instances, the fitness of an organism may be measured by one or more parameters, including, but not limited to, reproductive rate, lifespan, mobility, fecundity, body weight, metabolic rate or activity, or survival in comparison to a host organism to which the modulating agent has not been administered. For example, the methods or compositions provided herein may be effective to decrease the overall health of the host or to decrease the overall survival of the host. In some instances, the decreased survival of the host is about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or greater than 100% greater relative to a reference level (e.g., a level found in a host that does not receive a modulating agent). In some instances, the methods and compositions are effective to decrease host reproduction (e.g., reproductive rate) in comparison to a host organism to which the modulating agent has not been administered. In some instances, the methods and compositions are effective to decrease other physiological parameters, such as mobility, body weight, life span, fecundity, or metabolic rate, by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or greater than 100% relative to a reference level (e.g., a level found in a host that does not receive a modulating agent).
  • In some instances, the decrease in host fitness may manifest as a decrease in the production of one or more nutrients in the host (e.g., vitamins, carbohydrates, amino acids, or polypeptides). In some instances, the methods or compositions provided herein may be effective to decrease the production of nutrients in the host (e.g., vitamins, carbohydrates, amino acids, or polypeptides) by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or greater than 100% relative to a reference level (e.g., a level found in a host that does not receive a modulating agent). In some instances, the methods or compositions provided herein may decrease nutrients in the host by decreasing the production of nutrients by one or more microorganisms (e.g., endosymbiont) in the host in comparison to a host organism to which the modulating agent has not been administered.
  • In some instances, the decrease in host fitness may manifest as an increase in the host's sensitivity to a pesticidal agent (e.g., a pesticide listed in Table 12) and/or a decrease in the host's resistance to a pesticidal agent (e.g., a pesticide listed in Table 12) in comparison to a host organism to which the modulating agent has not been administered. In some instances, the methods or compositions provided herein may be effective to increase the host's sensitivity to a pesticidal agent (e.g., a pesticide listed in Table 12) by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or greater than 100% relative to a reference level (e.g., a level found in a host that does not receive a modulating agent). The pesticidal agent may be any pesticidal agent known in the art, including insecticidal agents. In some instances, the methods or compositions provided herein may increase the host's sensitivity to a pesticidal agent (e.g., a pesticide listed in Table 12) by decreasing the host's ability to metabolize or degrade the pesticidal agent into usable substrates in comparison to a host organism to which the modulating agent has not been administered.
  • In some instances, the decrease in host fitness may manifest as an increase in the host's sensitivity to an allelochemical agent and/or a decrease in the host's resistance to an allelochemical agent in comparison to a host organism to which the modulating agent has not been administered. In some instances, the methods or compositions provided herein may be effective to decrease the host's resistance to an allelochemical agent by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or greater than 100% relative to a reference level (e.g., a level found in a host that does not receive a modulating agent). In some instances, the allelochemical agent is caffeine, soyacystatin N, monoterpenes, diterpene acids, or phenolic compounds. In some instances, the methods or compositions provided herein may increase the host's sensitivity to an allelochemical agent by decreasing the host's ability to metabolize or degrade the allelochemical agent into usable substrates in comparison to a host organism to which the modulating agent has not been administered.
  • In some instances, the methods or compositions provided herein may be effective to decease the host's resistance to parasites or pathogens (e.g., fungal, bacterial, or viral pathogens or parasites) in comparison to a host organism to which the modulating agent has not been administered. In some instances, the methods or compositions provided herein may be effective to decrease the host's resistance to a pathogen or parasite (e.g., fungal, bacterial, or viral pathogens; or parasitic mites) by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or greater than 100% relative to a reference level (e.g., a level found in a host that does not receive a modulating agent).
  • In some instances, the decrease in host fitness may manifest as other fitness disadvantages, such as decreased tolerance to certain environmental factors (e.g., a high or low temperature tolerance), decreased ability to survive in certain habitats, or a decreased ability to sustain a certain diet in comparison to a host organism to which the modulating agent has not been administered. In some instances, the methods or compositions provided herein may be effective to decrease host fitness in any plurality of ways described herein. Further, the modulating agent may decrease host fitness in any number of host classes, orders, families, genera, or species (e.g., 1 host species, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 150, 200, 200, 250, 500, or more host species). In some instances, the modulating agent acts on a single host class, order, family, genus, or species.
  • Host fitness may be evaluated using any standard methods in the art. In some instances, host fitness may be evaluated by assessing an individual host. Alternatively, host fitness may be evaluated by assessing a host population. For example, a decrease in host fitness may manifest as a decrease in successful competition against other insects, thereby leading to a decrease in the size of the host population.
  • iii. Host Insects in Disease Transmission
  • By decreasing the fitness of host insects that carry animal pathogens, the modulating agents provided herein are effective to reduce the spread of vector-borne diseases. The modulating agent may be delivered to the insects using any of the formulations and delivery methods described herein, in an amount and for a duration effective to reduce transmission of the disease, e.g., reduce vertical or horizontal transmission between vectors and/or reduce transmission to animals. For example, the modulating agent described herein may reduce vertical or horizontal transmission of a vector-borne pathogen by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or more in comparison to a host organism to which the modulating agent has not been administered. As an another example, the modulating agent described herein may reduce vectorial competence of an insect vector by about 2%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, or more in comparison to a host organism to which the modulating agent has not been administered.
  • Non-limiting examples of diseases that may be controlled by the compositions and methods provided herein include diseases caused by Togaviridae viruses (e.g., Chikungunya, Ross River fever, Mayaro, Onyon-nyong fever, Sindbis fever, Eastern equine enchephalomyeltis, Wesetern equine encephalomyelitis, Venezualan equine encephalomyelitis, or Barmah forest); diseases caused by Flavivirdae viruses (e.g., Dengue fever, Yellow fever, Kyasanur Forest disease, Omsk haemorrhagic fever, Japaenese encephalitis, Murray Valley encephalitis, Rocio, St. Louis encephalitis, West Nile encephalitis, or Tick-borne encephalitis); diseases caused by Bunyaviridae viruses (e.g., Sandly fever, Rift Valley fever, La Crosse encephalitis, California encephalitis, Crimean-Congo haemorrhagic fever, or Oropouche fever); disease caused by Rhabdoviridae viruses (e.g., Vesicular stomatitis); disease caused by Orbiviridae (e.g., Bluetongue); diseases caused by bacteria (e.g., Plague, Tularaemia, Q fever, Rocky Mountain spotted fever, Murine typhus, Boutonneuse fever, Queensland tick typhus, Siberian tick typhus, Scrub typhus, Relapsing fever, or Lyme disease); or diseases caused by protozoa (e.g., Malaria, African trypanosomiasis, Nagana, Chagas disease, Leishmaniasis, Piroplasmosis, Bancroftian filariasis, or Brugian filariasis).
  • II. Target Microorganisms
  • The microorganisms targeted by the modulating agent described herein may include any microorganism resident in or on the host, including, but not limited to, any bacteria and/or fungi described herein. Microorganisms resident in the host may include, for example, symbiotic (e.g., endosymbiotic microorganisms that provide beneficial nutrients or enzymes to the host), commensal, pathogenic, or parasitic microorganisms. An endosymbiotic microorganism may be a primary endosymbiont or a secondary endosymbiont. A symbiotic microorganism (e.g., bacteria or fungi) may be an obligate symbiont of the host or a facultative symbiont of the host. Microorganisms resident in the host may be acquired by any mode of transmission, including vertical, horizontal, or multiple origins of transmission.
  • i. Bacteria
  • Exemplary bacteria that may be targeted in accordance with the methods and compositions provided herein, include, but are not limited to, Xenorhabdus spp, Photorhabdus spp, Candidatus spp, Buchnera spp, Blattabacterium spp, Baumania spp, Wigglesworthia spp, Wolbachia spp, Rickettsia spp, Orientia spp, Sodalis spp, Burkholderia spp, Cupriavidus spp, Frankia spp, Snirhizobium spp, Streptococcus spp, Wolinella spp, Xylella spp, Erwinia spp, Agrobacterium spp, Bacillus spp, Paenibacillus spp, Streptomyces spp, Micrococcus spp, Corynebacterium spp, Acetobacter spp, Cyanobacteria spp, Salmonella spp, Rhodococcus spp, Pseudomonas spp, Lactobacillus spp, Enterococcus spp, Alcaligenes spp, Klebsiella spp, Paenibacillus spp, Arthrobacter spp, Corynebacterium spp, Brevibacterium spp, Thermus spp, Pseudomonas spp, Clostridium spp, and Escherichia spp. Non-limiting examples of bacteria that may be targeted by the methods and compositions provided herein are shown in Table 1. In some instances, the 16S rRNA sequence of the bacteria targeted by the modulating agent has at least 50%, 60%, 70%, 80%, 85%, 90%, 95%, 97%, 99%, 99.9%, or 100% identity with a sequence listed in
  • TABLE 1
    Examples of Target Bacteria and Host Insects
    Primary endosymbiont Host Location 16S rRNA
    Gamma proteobacteria
    Carsonellaruddii Psyllids bacteriocytes TATCCAGCCACAGGTTCCCCTA
    (Psylloidea) CAGCTACCTTGTTACGACTTCA
    CCCCAGTTACAAATCATACCGT
    TGTAATAGTAAAATTACTTATGA
    TACAATTTACTTCCATGGTGTGA
    CGGGCGGTGTGTACAAGGCTC
    GAGAACGTATTCACCGTAACAT
    TCTGATTTACGATTACTAGCGAT
    TCCAACTTCATGAAATCGAGTT
    ACAGATTTCAATCCGAACTAAG
    AATATTTTTTAAGATTAGCATTA
    TGTTGCCATATAGCATATAACTT
    TTTGTAATACTCATTGTAGCACG
    TGTGTAGCCCTACTTATAAGGG
    CCATGATGACTTGACGTCGTCC
    TCACCTTCCTCCAATTTATCATT
    GGCAGTTTCTTATTAGTTCTAAT
    ATATTTTTAGTAAAATAAGATAA
    GGGTTGCGCTCGTTATAGGACT
    TAACCCAACATTTCACAACACG
    AGCTGACGACAGCCATGCAGC
    ACCTGTCTCAAAGCTAAAAAAG
    CTTTATTATTTCTAATAAATTCTT
    TGGATGTCAAAAGTAGGTAAGA
    TTTTTCGTGTTGTATCGAATTAA
    ACCACATGCTCCACCGCTTGTG
    CGAGCCCCCGTCAATTCATTTG
    AGTTTTAACCTTGCGGTCGTAA
    TCCCCAGGCGGTCAACTTAACG
    CGTTAGCTTTTTCACTAAAAATA
    TATAACTTTTTTTCATAAAACAA
    AATTACAATTATAATATTTAATA
    AATAGTTGACATCGTTTACTGC
    ATGGACTACCAGGGTATCTAAT
    CCTGTTTGCTCCCCATGCTTTC
    GTGTATTAGTGTCAGTATTAAAA
    TAGAAATACGCCTTCGCCACTA
    GTATTCTTTCAGATATCTAAGCA
    TTTCACTGCTACTCCTGAAATTC
    TAATTTCTTCTTTTATACTCAAG
    TTTATAAGTATTAATTTCAATATT
    AAATTACTTTAATAAATTTAAAA
    ATTAATTTTTAAAAACAACCTGC
    ACACCCTTTACGCCCAATAATT
    CCGATTAACGCTTGCACCCCTC
    GTATTACCGCGGCTGCTGGCA
    CGAAGTTAGCCGGTGCTTCTTT
    TACAAATAACGTCAAAGATAATA
    TTTTTTTATTATAAAATCTCTTCT
    TACTTTGTTGAAAGTGTTTTACA
    ACCCTAAGGCCTTCTTCACACA
    CGCGATATAGCTGGATCAAGCT
    TTCGCTCATTGTCCAATATCCC
    CCACTGCTGCCTTCCGTAAAAG
    TTTGGGCCGTGTCTCAGTCCCA
    ATGTGGTTGTTCATCCTCTAAG
    ATCAACTACGAATCATAGTCTT
    GTTAAGCTTTTACTTTAACAACT
    AACTAATTCGATATAAGCTCTTC
    TATTAGCGAACGACATTCTCGT
    TCTTTATCCATTAGGATACATAT
    TGAATTACTATACATTTCTATAT
    ACTTTTCTAATACTAATAGGTAG
    ATTCTTATATATTACTCACCCGT
    TCGCTGCTAATTATTTTTTTAAT
    AATTCGCACAACTTGCATGTGT
    TAAGCTTATCGCTAGCGTTCAA
    TCTGAGCTATGATCAAACTCA
    (SEQ ID NO: 1)
    Portieraaleyrodidarum whiteflyes bacteriocytes AAGAGTTTGATCATGGCTCAGA
    BT-B (Aleyrodoidea) TTGAACGCTAGCGGCAGACATA
    ACACATGCAAGTCGAGCGGCA
    TCATACAGGTTGGCAAGCGGC
    GCACGGGTGAGTAATACATGTA
    AATATACCTAAAAGTGGGGAAT
    AACGTACGGAAACGTACGCTAA
    TACCGCATAATTATTACGAGAT
    AAAGCAGGGGCTTGATAAAAAA
    AATCAACCTTGCGCTTTTAGAA
    AATTACATGCCGGATTAGCTAG
    TTGGTAGAGTAAAAGCCTACCA
    AGGTAACGATCCGTAGCTGGTC
    TGAGAGGATGATCAGCCACACT
    GGGACTGAGAAAAGGCCCAGA
    CTCCTACGGGAGGCAGCAGTG
    GGGAATATTGGACAATGGGGG
    GAACCCTGATCCAGTCATGCCG
    CGTGTGTGAAGAAGGCCTTTGG
    GTTGTAAAGCACTTTCAGCGAA
    GAAGAAAAGTTAGAAAATAAAA
    AGTTATAACTATGACGGTACTC
    GCAGAAGAAGCACCGGCTAAC
    TCCGTGCCAGCAGCCGCGGTA
    AGACGGAGGGTGCAAGCGTTA
    ATCAGAATTACTGGGCGTAAAG
    GGCATGTAGGTGGTTTGTTAAG
    CTTTATGTGAAAGCCCTATGCT
    TAACATAGGAACGGAATAAAGA
    ACTGACAAACTAGAGTGCAGAA
    GAGGAAGGTAGAATTCCCGGT
    GTAGCGGTGAAATGCGTAGATA
    TCTGGAGGAATACCAGTTGCGA
    AGGCGACCTTCTGGGCTGACA
    CTGACACTGAGATGCGAAAGC
    GTGGGGAGCAAACAGGATTAG
    ATACCCTGGTAGTCCACGCTGT
    AAACGATATCAACTAGCCGTTG
    GATTCTTAAAGAATTTTGTGGC
    GTAGCTAACGCGATAAGTTGAT
    CGCCTGGGGAGTACGGTCGCA
    AGGCTAAAACTCAAATGAATTG
    ACGGGGGCCCGCACAAGCGGT
    GGAGCATGTGGTTTAATTCGAT
    GCAACGCGCAAAACCTTACCTA
    CTCTTGACATCCAAAGTACTTTC
    CAGAGATGGAAGGGTGCCTTA
    GGGAACTTTGAGACAGGTGCT
    GCATGGCTGTCGTCAGCTCGT
    GTTGTGAAATGTTGGGTTAAGT
    CCCGTAACGAGCGCAACCCTT
    GTCCTTAGTTGCCAACGCATAA
    GGCGGGAACTTTAAGGAGACT
    GCTGGTGATAAACCGGAGGAA
    GGTGGGGACGACGTCAAGTCA
    TCATGGCCCTTAAGAGTAGGGC
    AACACACGTGCTACAATGGCAA
    AAACAAAGGGTCGCAAAATGGT
    AACATGAAGCTAATCCCAAAAA
    AATTGTCTTAGTTCGGATTGGA
    GTCTGAAACTCGACTCCATAAA
    GTCGGAATCGCTAGTAATCGTG
    AATCAGAATGTCACGGTGAATA
    CGTTCTCGGGCCTTGTACACAC
    CGCCCGTCACACCATGGAAGT
    GAAATGCACCAGAAGTGGCAA
    GTTTAACCAAAAAACAGGAGAA
    CAGTCACTACGGTGTGGTTCAT
    GACTGGGGTGAAGTCGTAACA
    AGGTAGCTGTAGGGGAACCTG
    TGGCTGGATCACCTCCTTAA
    (SEQ ID NO: 2)
    Buchneraaphidicola Aphids bacteriocytes AGAGTTTGATCATGGCTCAGAT
    str. (Aphidoidea) TGAACGCTGGCGGCAAGCCTA
    APS (Acyrthosiphon ACACATGCAAGTCGAGCGGCA
    pisum) GCGAGAAGAGAGCTTGCTCTCT
    TTGTCGGCAAGCGGCAAACGG
    GTGAGTAATATCTGGGGATCTA
    CCCAAAAGAGGGGGATAACTA
    CTAGAAATGGTAGCTAATACCG
    CATAATGTTGAAAAACCAAAGT
    GGGGGACCTTTTGGCCTCATG
    CTTTTGGATGAACCCAGACGAG
    ATTAGCTTGTTGGTAGAGTAAT
    AGCCTACCAAGGCAACGATCTC
    TAGCTGGTCTGAGAGGATAACC
    AGCCACACTGGAACTGAGACA
    CGGTCCAGACTCCTACGGGAG
    GCAGCAGTGGGGAATATTGCA
    CAATGGGCGAAAGCCTGATGC
    AGCTATGCCGCGTGTATGAAGA
    AGGCCTTAGGGTTGTAAAGTAC
    TTTCAGCGGGGAGGAAAAAAAT
    AAAACTAATAATTTTATTTCGTG
    ACGTTACCCGCAGAAGAAGCA
    CCGGCTAACTCCGTGCCAGCA
    GCCGCGGTAATACGGAGGGTG
    CAAGCGTTAATCAGAATTACTG
    GGCGTAAAGAGCGCGTAGGTG
    GTTTTTTAAGTCAGGTGTGAAAT
    CCCTAGGCTCAACCTAGGAACT
    GCATTTGAAACTGGAAAACTAG
    AGTTTCGTAGAGGGAGGTAGAA
    TTCTAGGTGTAGCGGTGAAATG
    CGTAGATATCTGGAGGAATACC
    CGTGGCGAAAGCGGCCTCCTA
    AACGAAAACTGACACTGAGGC
    GCGAAAGCGTGGGGAGCAAAC
    AGGATTAGATACCCTGGTAGTC
    CATGCCGTAAACGATGTCGACT
    TGGAGGTTGTTTCCAAGAGAAG
    TGACTTCCGAAGCTAACGCATT
    AAGTCGACCGCCTGGGGAGTA
    CGGCCGCAAGGCTAAAACTCA
    AATGAATTGACGGGGGCCCGC
    ACAAGCGGTGGAGCATGTGGT
    TTAATTCGATGCAACGCGAAAA
    ACCTTACCTGGTCTTGACATCC
    ACAGAATTCTTTAGAAATAAAGA
    AGTGCCTTCGGGAGCTGTGAG
    ACAGGTGCTGCATGGCTGTCGT
    CAGCTCGTGTTGTGAAATGTTG
    GGTTAAGTCCCGCAACGAGCG
    CAACCCTTATCCCCTGTTGCCA
    GCGGTTCGGCCGGGAACTCAG
    AGGAGACTGCCGGTTATAAACC
    GGAGGAAGGTGGGGACGACGT
    CAAGTCATCATGGCCCTTACGA
    CCAGGGCTACACACGTGCTAC
    AATGGTTTATACAAAGAGAAGC
    AAATCTGCAAAGACAAGCAAAC
    CTCATAAAGTAAATCGTAGTCC
    GGACTGGAGTCTGCAACTCGA
    CTCCACGAAGTCGGAATCGCTA
    GTAATCGTGGATCAGAATGCCA
    CGGTGAATACGTTCCCGGGCC
    TTGTACACACCGCCCGTCACAC
    CATGGGAGTGGGTTGCAAAAG
    AAGCAGGTATCCTAACCCTTTA
    AAAGGAAGGCGCTTACCACTTT
    GTGATTCATGACTGGGGTGAAG
    TCGTAACAAGGTAACCGTAGGG
    GAACCTGCGGTTGGATCACCTC
    CTT
    (SEQ ID NO: 3)
    Buchneraaphidicola Aphids bacteriocytes AAACTGAAGAGTTTGATCATGG
    str. (Aphidoidea) CTCAGATTGAACGCTGGCGGC
    Sg (Schizaphis AAGCCTAACACATGCAAGTCGA
    graminum) GCGGCAGCGAAAAGAAAGCTT
    GCTTTCTTGTCGGCGAGCGGC
    AAACGGGTGAGTAATATCTGGG
    GATCTGCCCAAAAGAGGGGGA
    TAACTACTAGAAATGGTAGCTA
    ATACCGCATAAAGTTGAAAAAC
    CAAAGTGGGGGACCTTTTTTAA
    AGGCCTCATGCTTTTGGATGAA
    CCCAGACGAGATTAGCTTGTTG
    GTAAGGTAAAAGCTTACCAAGG
    CAACGATCTCTAGCTGGTCTGA
    GAGGATAACCAGCCACACTGG
    AACTGAGACACGGTCCAGACTC
    CTACGGGAGGCAGCAGTGGGG
    AATATTGCACAATGGGCGAAAG
    CCTGATGCAGCTATGCCGCGT
    GTATGAAGAAGGCCTTAGGGTT
    GTAAAGTACTTTCAGCGGGGAG
    GAAAAAATTAAAACTAATAATTT
    TATTTTGTGACGTTACCCGCAG
    AAGAAGCACCGGCTAACTCCGT
    GCCAGCAGCCGCGGTAATACG
    GAGGGTGCGAGCGTTAATCAG
    AATTACTGGGCGTAAAGAGCAC
    GTAGGTGGTTTTTTAAGTCAGA
    TGTGAAATCCCTAGGCTTAACC
    TAGGAACTGCATTTGAAACTGA
    AATGCTAGAGTATCGTAGAGGG
    AGGTAGAATTCTAGGTGTAGCG
    GTGAAATGCGTAGATATCTGGA
    GGAATACCCGTGGCGAAAGCG
    GCCTCCTAAACGAATACTGACA
    CTGAGGTGCGAAAGCGTGGGG
    AGCAAACAGGATTAGATACCCT
    GGTAGTCCATGCCGTAAACGAT
    GTCGACTTGGAGGTTGTTTCCA
    AGAGAAGTGACTTCCGAAGCTA
    ACGCGTTAAGTCGACCGCCTG
    GGGAGTACGGCCGCAAGGCTA
    AAACTCAAATGAATTGACGGGG
    GCCCGCACAAGCGGTGGAGCA
    TGTGGTTTAATTCGATGCAACG
    CGAAAAACCTTACCTGGTCTTG
    ACATCCACAGAATTTTTTAGAAA
    TAAAAAAGTGCCTTCGGGAACT
    GTGAGACAGGTGCTGCATGGC
    TGTCGTCAGCTCGTGTTGTGAA
    ATGTTGGGTTAAGTCCCGCAAC
    GAGCGCAACCCTTATCCCCTGT
    TGCCAGCGGTTCGGCCGGGAA
    CTCAGAGGAGACTGCCGGTTAT
    AAACCGGAGGAAGGTGGGGAC
    GACGTCAAGTCATCATGGCCCT
    TACGACCAGGGCTACACACGT
    GCTACAATGGTTTATACAAAGA
    GAAGCAAATCTGTAAAGACAAG
    CAAACCTCATAAAGTAAATCGT
    AGTCCGGACTGGAGTCTGCAA
    CTCGACTCCACGAAGTCGGAAT
    CGCTAGTAATCGTGGATCAGAA
    TGCCACGGTGAATACGTTCCCG
    GGCCTTGTACACACCGCCCGT
    CACACCATGGGAGTGGGTTGC
    AAAAGAAGCAGATTTCCTAACC
    ACGAAAGTGGAAGGCGTCTAC
    CACTTTGTGATTCATGACTGGG
    GTGAAGTCGTAACAAGGTAACC
    GTAGGGGAACCTGCGGTTGGA
    TCACCTCCTTA (SEQ ID NO: 4)
    Buchneraaphidicola Aphids bacteriocytes ACTTAAAATTGAAGAGTTTGATC
    str. Bp (Aphidoidea) ATGGCTCAGATTGAACGCTGGC
    (Baizongiapistaciae) GGCAAGCTTAACACATGCAAGT
    CGAGCGGCATCGAAGAAAAGT
    TTACTTTTCTGGCGGCGAGCGG
    CAAACGGGTGAGTAACATCTGG
    GGATCTACCTAAAAGAGGGGG
    ACAACCATTGGAAACGATGGCT
    AATACCGCATAATGTTTTTAAAT
    AAACCAAAGTAGGGGACTAAAA
    TTTTTAGCCTTATGCTTTTAGAT
    GAACCCAGACGAGATTAGCTTG
    ATGGTAAGGTAATGGCTTACCA
    AGGCGACGATCTCTAGCTGGTC
    TGAGAGGATAACCAGCCACACT
    GGAACTGAGATACGGTCCAGA
    CTCCTACGGGAGGCAGCAGTG
    GGGAATATTGCACAATGGGCTA
    AAGCCTGATGCAGCTATGCCG
    CGTGTATGAAGAAGGCCTTAGG
    GTTGTAAAGTACTTTCAGCGGG
    GAGGAAAGAATTATGTCTAATA
    TACATATTTTGTGACGTTACCC
    GAAGAAGAAGCACCGGCTAAC
    TCCGTGCCAGCAGCCGCGGTA
    ATACGGAGGGTGCGAGCGTTA
    ATCAGAATTACTGGGCGTAAAG
    AGCACGTAGGCGGTTTATTAAG
    TCAGATGTGAAATCCCTAGGCT
    TAACTTAGGAACTGCATTTGAA
    ACTAATAGACTAGAGTCTCATA
    GAGGGAGGTAGAATTCTAGGT
    GTAGCGGTGAAATGCGTAGATA
    TCTAGAGGAATACCCGTGGCG
    AAAGCGACCTCCTAAATGAAAA
    CTGACGCTGAGGTGCGAAAGC
    GTGGGGAGCAAACAGGATTAG
    ATACCCTGGTAGTCCATGCTGT
    AAACGATGTCGACTTGGAGGTT
    GTTTCCTAGAGAAGTGGCTTCC
    GAAGCTAACGCATTAAGTCGAC
    CGCCTGGGGAGTACGGTCGCA
    AGGCTAAAACTCAAATGAATTG
    ACGGGGGCCCGCACAAGCGGT
    GGAGCATGTGGTTTAATTCGAT
    GCAACGCGAAGAACCTTACCTG
    GTCTTGACATCCATAGAATTTTT
    TAGAGATAAAAGAGTGCCTTAG
    GGAACTATGAGACAGGTGCTG
    CATGGCTGTCGTCAGCTCGTGT
    TGTGAAATGTTGGGTTAAGTCC
    CGCAACGAGCGCAACCCCTAT
    CCTTTGTTGCCATCAGGTTATG
    CTGGGAACTCAGAGGAGACTG
    CCGGTTATAAACCGGAGGAAG
    GTGGGGATGACGTCAAGTCAT
    CATGGCCCTTACGACCAGGGC
    TACACACGTGCTACAATGGCAT
    ATACAAAGAGATGCAACTCTGC
    GAAGATAAGCAAACCTCATAAA
    GTATGTCGTAGTCCGGACTGGA
    GTCTGCAACTCGACTCCACGAA
    GTAGGAATCGCTAGTAATCGTG
    GATCAGAATGCCACGGTGAATA
    CGTTCCCGGGCCTTGTACACAC
    CGCCCGTCACACCATGGGAGT
    GGGTTGCAAAAGAAGCAGGTA
    GCTTAACCAGATTATTTTATTGG
    AGGGCGCTTACCACTTTGTGAT
    TCATGACTGGGGTGAAGTCGTA
    ACAAGGTAACCGTAGGGGAAC
    CTGCGGTTGGATCACCTCCTTA
    (SEQ ID NO: 5)
    Buchneraaphidicola Aphids bacteriocytes ATGAGATCATTAATATATAAAAA
    BCc (Aphidoidea) TCATGTTCCAATTAAAAAATTAG
    GACAAAATTTTTTACAGAATAAA
    GAAATTATTAATCAGATAATTAA
    TTTAATAAATATTAATAAAAATG
    ATAATATTATTGAAATAGGATCA
    GGATTAGGAGCGTTAACTTTTC
    CTATTTGTAGAATCATTAAAAAA
    ATGATAGTATTAGAAATTGATGA
    AGATCTTGTGTTTTTTTTAACTC
    AAAGTTTATTTATTAAAAAATTA
    CAAATTATAATTGCTGATATTAT
    AAAATTTGATTTTTGTTGTTTTTT
    TTCTTTACAGAAATATAAAAAAT
    ATAGGTTTATTGGTAATTTACCA
    TATAATATTGCTACTATATTTTTT
    TTAAAAACAATTAAATTTCTTTA
    TAATATAATTGATATGCATTTTA
    TGTTTCAAAAAGAAGTAGCAAA
    GAGATTATTAGCTACTCCTGGT
    ACTAAAGAATATGGTAGATTAA
    GTATTATTGCACAATATTTTTAT
    AAGATAGAAACTGTTATTAATGT
    TAATAAATTTAATTTTTTTCCTAC
    TCCTAAAGTAGATTCTACTTTTT
    TACGATTTACTCCTAAATATTTT
    AATAGTAAATATAAAATAGATAA
    ACATTTTTCTGTTTTAGAATTAA
    TTACTAGATTTTCTTTTCAACAT
    AGAAGAAAATTTTTAAATAATAA
    TTTAATATCTTTATTTTCTACAAA
    AGAATTAATTTCTTTAGATATTG
    ATCCATATTCAAGAGCAGAAAA
    TGTTTCTTTAATTCAATATTGTA
    AATTAATGAAATATTATTTGAAA
    AGAAAAATTTTATGTTTAGATTA
    A (SEQ ID NO: 6)
    Buchneraaphidicola Aphids bacteriocytes TTATCTTATTTCACATATACGTA
    (Cinaratujafilina) (Aphidoidea) ATATTGCGCTGCGTGCACGAG
    GATTTTTTTGAATTTCAGATATA
    TTTGGTTTAATACGTTTAATAAA
    ACGTATTTTTTTTTTTATTTTTCT
    TATTTGCAATTCAGTAATAGGAA
    GTTTTTTAGGTATATTTGGATAA
    TTACTGTAATTCTTAATAAAGTT
    TTTTACAATCCTATCTTCAATAG
    AATGAAAACTAATAATAGCAATT
    TTTGATCCGGAATGTAATATGTT
    AATAATAATTTTTAATATTTTATG
    TAATTCATTTATTTCTTGGTTAA
    TATATATTCGAAAAGCTTGAAAT
    GTTCTCGTAGCTGGATGTTTAA
    ATTTGTCATATTTTGGGATTGAT
    TTTTTTATGATTTGAACTAACTC
    TAACGTGCTTGTTATGGTTTTTT
    TTTTTATTTGTAATATGATGGOT
    CGGGATATTTTTTTTGCGTATTT
    TTCTTCGCCAAAATTTTTTATTA
    CCTGTTCTATTGTTTTTTGGTTT
    GTTTTTTTTAACCATTGACTAAC
    TGATATTCCAGATTTAGGGTTC
    ATACGCATATCTAAAGGTCCAT
    CATTCATAAATGAAAATCCTCG
    GATACTAGAATTTAACTGTATTG
    AAGAAATACCTAAATCTAATAAT
    ATTCCATCTATTTTATCTCTATTT
    TTTTCTTTTTTTAATATTTTTTCA
    ATATTAGAAAATTTACCTAAAAA
    TATTTTAAATCGCGAATCTTTTA
    TTTTTTTTCCGATTTTTATAGATT
    GTGGGTCTTGATCAATACTATA
    TAACTTTCCATTAACCCCTAATT
    CTTGAAGAATTGCTTTTGAATGA
    CCACCACCTCCAAATGTACAAT
    CAACATATGTACCGTCTTTTTTT
    ATTTTTAAGTATTGTATGATTTC
    TTTTGTTAAAACAGGTTTATGAA
    TCAT (SEQ ID NO: 7)
    Buchneraaphidicola Aphids bacteriocytes ATGAAAAGTATAAAAACTTTTAA
    str. (Aphidoidea) AAAACACTTTCCTGTGAAAAAAT
    G002 (Myzuspersicae) ATGGACAAAATTTTCTTATTAAT
    AAAGAGATCATAAAAAATATTGT
    TAAAAAAATTAATCCAAATATAG
    AACAAACATTAGTAGAAATCGG
    ACCAGGATTAGCTGCATTAACT
    GAGCCCATATCTCAGTTATTAA
    AAGAGTTAATAGTTATTGAAATA
    GACTGTAATCTATTATATTTTTT
    AAAAAAACAACCATTTTATTCAA
    AATTAATAGTTTTTTGTCAAGAT
    GCTTTAAACTTTAATTATACAAA
    TTTATTTTATAAAAAAAATAAATT
    AATTCGTATTTTTGGTAATTTAC
    CATATAATATCTCTACATCTTTA
    ATTATTTTTTTATTTCAACACATT
    AGAGTAATTCAAGATATGAATTT
    TATGCTTCAAAAAGAAGTTGCT
    GCAAGATTAATTGCATTACCTG
    GAAATAAATATTACGGTCGTTT
    GAGCATTATATCTCAATATTATT
    GTGATATCAAAATTTTATTAAAT
    GTTGCTCCTGAAGATTTTTGGC
    CTATTCCGAGAGTTCATTCTATA
    TTTGTAAATTTAACACCTCATCA
    TAATTCTCCTTATTTTGTTTATG
    ATATTAATATTTTAAGCCTTATT
    ACAAATAAGGCTTTCCAAAATA
    GAAGAAAAATATTACGTCATAG
    TTTAAAAAATTTATTTTCTGAAA
    CAACTTTATTAAATTTAGATATT
    AATCCCAGATTAAGAGCTGAAA
    ATATTTCTGTTTTTCAGTATTGT
    CAATTAGCTAATTATTTGTATAA
    AAAAAATTATACTAAAAAAAATT
    AA (SEQ ID NO: 8)
    Buchneraaphidicola Aphids bacteriocytes ATTATAAAAAATTTTAAAAAACA
    str. (Aphidoidea) TTTTCCTTTAAAAAGGTATGGAC
    Ak (Acyrthosiphon AAAATTTTCTTGTCAATACAAAA
    kondoi) ACTATTCAAAAGATAATTAATAT
    AATTAATCCAAACACCAAACAA
    ACATTAGTGGAAATTGGACCTG
    GATTAGCTGCATTAACAAAACC
    AATTTGTCAATTATTAGAAGAAT
    TAATTGTTATTGAAATAGATCCT
    AATTTATTGTTTTTATTAAAAAAA
    CGTTCATTTTATTCAAAATTAAC
    AGTTTTTTATCAAGACGCTTTAA
    ATTTCAATTATACAGATTTGTTT
    TATAAGAAAAATCAATTAATTCG
    TGTTTTTGGAAACTTGCCATATA
    ATATTTCTACATCTTTAATTATTT
    CTTTATTCAATCATATTAAAGTT
    ATTCAAGATATGAATTTTATGTT
    ACAGAAAGAGGTTGCTGAAAGA
    TTAATTTCTATTCCTGGAAATAA
    ATCTTATGGCCGTTTAAGCATTA
    TTTCTCAGTATTATTGTAAAATT
    AAAATATTATTAAATGTTGTACC
    TGAAGATTTTCGACCTATACCG
    AAAGTGCATTCTGTTTTTATCAA
    TTTAACTCCTCATACCAATTCTC
    CATATTTTGTTTATGATACAAAT
    ATCCTCAGTTCTATCACAAGAA
    ATGCTTTTCAAAATAGAAGGAA
    AATTTTGCGTCATAGTTTAAAAA
    ATTTATTTTCTGAAAAAGAACTA
    ATTCAATTAGAAATTAATCCAAA
    TTTACGAGCTGAAAATATTTCTA
    TCTTTCAGTATTGTCAATTAGCT
    GATTATTTATATAAAAAATTAAA
    TAATCTTGTAAAAATCAATTAA
    (SEQ ID NO: 9)
    Buchneraaphidicola Aphids bacteriocytes ATGATACTAAATAAATATAAAAA
    str. (Aphidoidea) ATTTATTCCTTTAAAAAGATACG
    Ua (Uroleucon GACAAAATTTTCTTGTAAATAGA
    ambrosiae) GAAATAATCAAAAATATTATCAA
    AATAATTAATCCTAAAAAAACGC
    AAACATTATTAGAAATTGGACC
    GGGTTTAGGTGCGTTAACAAAA
    CCTATTTGTGAATTTTTAAATGA
    ACTTATCGTCATTGAAATAGATC
    CTAATATATTATCTTTTTTAAAG
    AAATGTATATTTTTTGATAAATT
    AAAAATATATTGTCATAATGCTT
    TAGATTTTAATTATAAAAATATA
    TTCTATAAAAAAAGTCAATTAAT
    TCGTATTTTTGGAAATTTACCAT
    ATAATATTTCTACATCTTTAATA
    ATATATTTATTTCGGAATATTGA
    TATTATTCAAGATATGAATTTTA
    TGTTACAACAAGAAGTGGCTAA
    AAGATTAGTTGCTATTCCTGGT
    GAAAAACTTTATGGTCGTTTAA
    GTATTATATCTCAATATTATTGT
    AATATTAAAATATTATTACATATT
    CGACCTGAAAATTTTCAACCTA
    TTCCTAAAGTTAATTCAATGTTT
    GTAAATTTAACTCCGCATATTCA
    TTCTCCTTATTTTGTTTATGATA
    TTAATTTATTAACTAGTATTACA
    AAACATGCTTTTCAACATAGAA
    GAAAAATATTGCGTCATAGTTTA
    AGAAATTTTTTTTCTGAGCAAGA
    TTTAATTCATTTAGAAATTAATC
    CAAATTTAAGAGCTGAAAATGT
    TTCTATTATTCAATATTGTCAAT
    TGGCTAATAATTTATATAAAAAA
    CATAAACAG TTTATTAATAATTA
    A (SEQ ID NO: 10)
    Buchneraaphidicola Aphids bacteriocytes ATGAAAAAGCATATTCCTATAAA
    (Aphisglycines) (Aphidoidea) AAAATTTAGTCAAAATTTTCTTG
    TAGATTTGAGTGTGATTAAAAAA
    ATAATTAAATTTATTAATCCGCA
    GTTAAATGAAATATTGGTTGAAA
    TTGGACCGGGATTAGCTGCTAT
    CACTCGACCTATTTGTGATTTG
    ATAGATCATTTAATTGTGATTGA
    AATTGATAAAATTTTATTAGATA
    GATTAAAACAGTTCTCATTTTAT
    TCAAAATTAACAGTATATCATCA
    AGATGCTTTAGCATTTGATTACA
    TAAAGTTATTTAATAAAAAAAAT
    AAATTAGTTCGAATTTTTGGTAA
    TTTACCATATCATGTTTCTACGT
    CTTTAATATTGCATTTATTTAAA
    AGAATTAATATTATTAAAGATAT
    GAATTTTATGCTACAAAAAGAA
    GTTGCTGAACGTTTAATTGCAA
    CTCCAGGTAGTAAATTATATGG
    TCGTTTAAGTATTATTTCTCAAT
    ATTATTGTAATATAAAAGTTTTA
    TTGCATGTGTCTTCAAAATGTTT
    TAAACCAGTTCCTAAAGTAGAA
    TCAATTTTTCTTAATTTGACACC
    TTATACTGATTATTTCCCTTATT
    TTACTTATAATGTAAACGTTCTT
    AGTTATATTACAAATTTAGCTTT
    TCAAAAAAGAAGAAAAATATTAC
    GTCATAGTTTAGGTAAAATATTT
    TCTGAAAAAGTTTTTATAAAATT
    AAATATTAATCCCAAATTAAGAC
    CTGAGAATATTTCTATATTACAA
    TATTGTCAGTTATCTAATTATAT
    GATAGAAAATAATATTCATCAG
    GAACATGTTTGTATTTAA
    (SEQ ID NO: 11)
    Annandiapinicola (Phyllo- bacteriocytes AGATTGAACGCTGGCGGCATG
    xeroidea) CCTTACACATGCAAGTCGAACG
    GTAACAGGTCTTCGGACGCTGA
    CGAGTGGCGAACGGGTGAGTA
    ATACATCGGAACGTGCCCAGTC
    GTGGGGGATAACTACTCGAAA
    GAGTAGCTAATACCGCATACGA
    TCTGAGGATGAAAGCGGGGGA
    CCTTCGGGCCTCGCGCGATTG
    GAGCGGCCGATGGCAGATTAG
    GTAGTTGGTGGGATAAAAGCTT
    ACCAAGCCGACGATCTGTAGCT
    GGTCTGAGAGGACGACCAGCC
    ACACTGGAACTGAGATACGGTC
    CAGACTCTTACGGGAGGCAGC
    AGTGGGGAATATTGCACAATGG
    GCGCAAGCCTGATGCAGCTAT
    GTCGCGTGTATGAAGAAGACCT
    TAGGGTTGTAAAGTACTTTCGA
    TAGCATAAGAAGATAATGAGAC
    TAATAATTTTATTGTCTGACGTT
    AGCTATAGAAGAAGCACCGGCT
    AACTCCGTGCCAGCAGCCGCG
    GTAATACGGGGGGTGCTAGCG
    TTAATCGGAATTACTGGGCGTA
    AAGAGCATGTAGGTGGTTTATT
    AAGTCAGATGTGAAATCCCTGG
    ACTTAATCTAGGAACTGCATTT
    GAAACTAATAGGCTAGAGTTTC
    GTAGAGGGAGGTAGAATTCTAG
    GTGTAGCGGTGAAATGCATAGA
    TATCTAGAGGAATATCAGTGGC
    GAAGGCGACCTTCTGGACGAT
    AACTGACGCTAAAATGCGAAAG
    CATGGGTAGCAAACAGGATTAG
    ATACCCTGGTAGTCCATGCTGT
    AAACGATGTCGACTAAGAGGTT
    GGAGGTATAACTTTTAATCTCT
    GTAGCTAACGCGTTAAGTCGAC
    CGCCTGGGGAGTACGGTCGCA
    AGGCTAAAACTCAAATGAATTG
    ACGGGGGCCTGCACAAGCGGT
    GGAGCATGTGGTTTAATTCGAT
    GCAACGCGTAAAACCTTACCTG
    GTCTTGACATCCACAGAATTTTA
    CAGAAATGTAGAAGTGCAATTT
    GAACTGTGAGACAGGTGCTGC
    ATGGCTGTCGTCAGCTCGTGTT
    GTGAAATGTTGGGTTAAGTCCC
    GCAACGAGCGCAACCCTTGTC
    CTTTGTTACCATAAGATTTAAGG
    AACTCAAAGGAGACTGCCGGT
    GATAAACTGGAGGAAGGCGGG
    GACGACGTCAAGTCATCATGGC
    CCTTATGACCAGGGCTACACAC
    GTGCTACAATGGCATATACAAA
    GAGATGCAATATTGCGAAATAA
    AGCCAATCTTATAAAATATGTCC
    TAGTTCGGACTGGAGTCTGCAA
    CTCGACTCCACGAAGTCGGAAT
    CGCTAGTAATCGTGGATCAGCA
    TGCCACGGTGAATATGTTTCCA
    GGCCTTGTACACACCGCCCGT
    CACACCATGGAAGTGGATTGCA
    AAAGAAGTAAGAAAATTAACCT
    TCTTAACAAGGAAATAACTTAC
    CACTTTGTGACTCATAACTGGG
    GTGA
    (SEQ ID NO: 12)
    Moranellaendobia (Coccoidea) bacteriocytes TCTTTTTGGTAAGGAGGTGATC
    CAACCGCAGGTTCCCCTACGGT
    TACCTTGTTACGACTTCACCCC
    AGTCATGAATCACAAAGTGGTA
    AGCGCCCTCCTAAAAGGTTAGG
    CTACCTACTTCTTTTGCAACCCA
    CTTCCATGGTGTGACGGGCGG
    TGTGTACAAGGCCCGGGAACG
    TATTCACCGTGGCATTCTGATC
    CACGATTACTAGCGATTCCTAC
    TTCATGGAGTCGAGTTGCAGAC
    TCCAATCCGGACTACGACGCAC
    TTTATGAGGTCCGCTAACTCTC
    GCGAGCTTGCTTCTCTTTGTAT
    GCGCCATTGTAGCACGTGTGTA
    GCCCTACTCGTAAGGGCCATG
    ATGACTTGACGTCATCCCCACC
    TTCCTCCGGTTTATCACCGGCA
    GTCTCCTTTGAGTTCCCGACCG
    AATCGCTGGCAAAAAAGGATAA
    GGGTTGCGCTCGTTGCGGGAC
    TTAACCCAACATTTCACAACAC
    GAGCTGACGACAGCCATGCAG
    CACCTGTCTCAGAGTTCCCGAA
    GGTACCAAAACATCTCTGCTAA
    GTTCTCTGGATGTCAAGAGTAG
    GTAAGGTTCTTCGCGTTGCATC
    GAATTAAACCACATGCTCCACC
    GCTTGTGCGGGCCCCCGTCAA
    TTCATTTGAGTTTTAACCTTGCG
    GCCGTACTCCCCAGGCGGTCG
    ATTTAACGCGTTAACTACGAAA
    GCCACAGTTCAAGACCACAGCT
    TTCAAATCGACATAGTTTACGG
    CGTGGACTACCAGGGTATCTAA
    TCCTGTTTGCTCCCCACGCTTT
    CGTACCTGAGCGTCAGTATTCG
    TCCAGGGGGCCGCCTTCGCCA
    CTGGTATTCCTCCAGATATCTA
    CACATTTCACCGCTACACCTGG
    AATTCTACCCCCCTCTACGAGA
    CTCTAGCCTATCAGTTTCAAAT
    GCAGTTCCTAGGTTAAGCCCAG
    GGATTTCACATCTGACTTAATAA
    ACCGCCTACGTACTCTTTACGC
    CCAGTAATTCCGATTAACGCTT
    GCACCCTCCGTATTACCGCGG
    CTGCTGGCACGGAGTTAGCCG
    GTGCTTCTTCTGTAGGTAACGT
    CAATCAATAACCGTATTAAGGA
    TATTGCCTTCCTCCCTACTGAA
    AGTGCTTTACAACCCGAAGGCC
    TTCTTCACACACGCGGCATGGC
    TGCATCAGGGTTTCCCCCATTG
    TGCAATATTCCCCACTGCTGCC
    TCCCGTAGGAGTCTGGACCGT
    GTCTCAGTTCCAGTGTGGCTGG
    TCATCCTCTCAGACCAGCTAGG
    GATCGTCGCCTAGGTAAGCTAT
    TACCTCACCTACTAGCTAATCC
    CATCTGGGTTCATCTGAAGGTG
    TGAGGCCAAAAGGTCCCCCAC
    TTTGGTCTTACGACATTATGCG
    GTATTAGCTACCGTTTCCAGCA
    GTTATCCCCCTCCATCAGGCAG
    ATCCCCAGACTTTACTCACCCG
    TTCGCTGCTCGCCGGCAAAAAA
    GTAAACTTTTTTCCGTTGCCGC
    TCAACTTGCATGTGTTAGGCCT
    GCCGCCAGCGTTCAATCTGAG
    CCATGATCAAACTCTTCAATTAA
    A
    (SEQ ID NO: 13)
    Ishikawaellacapsulata (Heteroptera) bacteriocytes AAATTGAAGAGTTTGATCATGG
    Mpkobe CTCAGATTGAACGCTAGCGGCA
    AGCTTAACACATGCAAGTCGAA
    CGGTAACAGAAAAAAGCTTGCT
    TTTTTGCTGACGAGTGGCGGAC
    GGGTGAGTAATGTCTGGGGAT
    CTACCTAATGGCGGGGGATAA
    CTACTGGAAACGGTAGCTAATA
    CCGCATAATGTTGTAAAACCAA
    AGTGGGGGACCTTATGGCCTC
    ACACCATTAGATGAACCTAGAT
    GGGATTAGCTTGTAGGTGGGG
    TAAAGGCTCACCTAGGCAACGA
    TCCCTAGCTGGTCTGAGAGGAT
    GACCAGCCACACTGGAACTGA
    GATACGGTCCAGACTCCTACG
    GGAGGCAGCAGTGGGGAATCT
    TGCACAATGGGCGCAAGCCTG
    ATGCAGCTATGTCGCGTGTATG
    AAGAAGGCCTTAGGGTTGTAAA
    GTACTTTCATCGGGGAAGAAGG
    ATATGAGCCTAATATTCTCATAT
    ATTGACGTTACCTGCAGAAGAA
    GCACCGGCTAACTCCGTGCCA
    GCAGCCGCGGTAACACGGAGG
    GTGCGAGCGTTAATCGGAATTA
    CTGGGCGTAAAGAGCACGTAG
    GTGGTTTATTAAGTCATATGTGA
    AATCCCTGGGCTTAACCTAGGA
    ACTGCATGTGAAACTGATAAAC
    TAGAGTTTCGTAGAGGGAGGT
    GGAATTCCAGGTGTAGCGGTG
    AAATGCGTAGATATCTGGAGGA
    ATATCAGAGGCGAAGGCGACC
    TTCTGGACGAAAACTGACACTC
    AGGTGCGAAAGCGTGGGGAGC
    AAACAGGATTAGATACCCTGGT
    AGTCCACGCTGTAAACAATGTC
    GACTAAAAAACTGTGAGCTTGA
    CTTGTGGTTTTTGTAGCTAACG
    CATTAAGTCGACCGCCTGGGG
    AGTACGGCCGCAAGGTTAAAAC
    TCAAATGAATTGACGGGGGTCC
    GCACAAGCGGTGGAGCATGTG
    GTTTAATTCGATGCAACGCGAA
    AAACCTTACCTGGTCTTGACAT
    CCAGCGAATTATATAGAAATAT
    ATAAGTGCCTTTCGGGGAACTC
    TGAGACGCTGCATGGCTGTCGT
    CAGCTCGTGTTGTGAAATGTTG
    GGTTAAGTCCCGCAACGAGCG
    CCCTTATCCTCTGTTGCCAGCG
    GCATGGCCGGGAACTCAGAGG
    AGACTGCCAGTATTAAACTGGA
    GGAAGGTGGGGATGACGTCAA
    GTCATCATGGCCCTTATGACCA
    GGGCTACACACGTGCTACAATG
    GTGTATACAAAGAGAAGCAATC
    TCGCAAGAGTAAGCAAAACTCA
    AAAAGTACATCGTAGTTCGGAT
    TAGAGTCTGCAACTCGACTCTA
    TGAAGTAGGAATCGCTAGTAAT
    CGTGGATCAGAATGCCACGGT
    GAATACGTTCTCTGGCCTTGTA
    CACACCGCCCGTCACACCATG
    GGAGTAAGTTGCAAAAGAAGTA
    GGTAGCTTAACCTTTATAGGAG
    GGCGCTTACCACTTTGTGATTT
    ATGACTGGGGTGAAGTCGTAAC
    AAGGTAACTGTAGGGGAACCT
    GTGGTTGGATTACCTCCTTA
    (SEQ ID NO: 14)
    Baumannia sharpshooter bacteriocytes TTCAATTGAAGAGTTTGATCATG
    cicadellinicola leafhoppers GCTCAGATTGAACGCTGGCGG
    (Cicadellinae) TAAGCTTAACACATGCAAGTCG
    AGCGGCATCGGAAAGTAAATTA
    ATTACTTTGCCGGCAAGCGGCG
    AACGGGTGAGTAATATCTGGG
    GATCTACCTTATGGAGAGGGAT
    AACTATTGGAAACGATAGCTAA
    CACCGCATAATGTCGTCAGACC
    AAAATGGGGGACCTAATTTAGG
    CCTCATGCCATAAGATGAACCC
    AGATGAGATTAGCTAGTAGGTG
    AGATAATAGCTCACCTAGGCAA
    CGATCTCTAGTTGGTCTGAGAG
    GATGACCAGCCACACTGGAACT
    GAGACACGGTCCAGACTCCTA
    CGGGAGGCAGCAGTGGGGAAT
    CTTGCACAATGGGGGAAACCCT
    GATGCAGCTATACCGCGTGTGT
    GAAGAAGGCCTTCGGGTTGTAA
    AGCACTTTCAGCGGGGAAGAA
    AATGAAGTTACTAATAATAATTG
    TCAATTGACGTTACCCGCAAAA
    GAAGCACCGGCTAACTCCGTG
    CCAGCAGCCGCGGTAAGACGG
    AGGGTGCAAGCGTTAATCGGA
    ATTACTGGGCGTAAAGCGTATG
    TAGGCGGTTTATTTAGTCAGGT
    GTGAAAGCCCTAGGCTTAACCT
    AGGAATTGCATTTGAAACTGGT
    AAGCTAGAGTCTCGTAGAGGG
    GGGGAGAATTCCAGGTGTAGC
    GGTGAAATGCGTAGAGATCTG
    GAAGAATACCAGTGGCGAAGG
    CGCCCCCCTGGACGAAAACTG
    ACGCTCAAGTACGAAAGCGTG
    GGGAGCAAACAGGATTAGATAC
    CCTGGTAGTCCACGCTGTAAAC
    GATGTCGATTTGAAGGTTGTAG
    CCTTGAGCTATAGCTTTCGAAG
    CTAACGCATTAAATCGACCGCC
    TGGGGAGTACGACCGCAAGGT
    TAAAACTCAAATGAATTGACGG
    GGGCCCGCACAAGCGGTGGAG
    CATGTGGTTTAATTCGATACAA
    CGCGAAAAACCTTACCTACTCT
    TGACATCCAGAGTATAAAGCAG
    AAAAGCTTTAGTGCCTTCGGGA
    ACTCTGAGACAGGTGCTGCATG
    GCTGTCGTCAGCTCGTGTTGTG
    AAATGTTGGGTTAAGTCCCGCA
    ACGAGCGCAACCCTTATCCTTT
    GTTGCCAACGATTAAGTCGGGA
    ACTCAAAGGAGACTGCCGGTG
    ATAAACCGGAGGAAGGTGAGG
    ATAACGTCAAGTCATCATGGCC
    CTTACGAGTAGGGCTACACACG
    TGCTACAATGGTGCATACAAAG
    AGAAGCAATCTCGTAAGAGTTA
    GCAAACCTCATAAAGTGCATCG
    TAGTCCGGATTAGAGTCTGCAA
    CTCGACTCTATGAAGTCGGAAT
    CGCTAGTAATCGTGGATCAGAA
    TGCCACGGTGAATACGTTCCCG
    GGCCTTGTACACACCGCCCGT
    CACACCATGGGAGTGTATTGCA
    AAAGAAGTTAGTAGCTTAACTC
    ATAATACGAGAGGGCGCTTACC
    ACTTTGTGATTCATAACTGGGG
    TGAAGTCGTAACAAGGTAACCG
    TAGGGGAACCTGCGGTTGGAT
    CACCTCCTTACACTAAA
    (SEQ ID NO: 15)
    Sodalis like Rhopalus wider tissue ATTGAACGCTGGCGGCAGGCC
    sapporensis tropism TAACACATGCAAGTCGAGCGG
    CAGCGGGAAGAAGCTTGCTTCT
    TTGCCGGCGAGCGGCGGACGG
    GTGAGTAATGTCTGGGGATCTG
    CCCGATGGAGGGGGATAACTA
    CTGGAAACGGTAGCTAATACCG
    CATAACGTCGCAAGACCAAAGT
    GGGGGACCTTCGGGCCTCACA
    CCATCGGATGAACCCAGGTGG
    GATTAGCTAGTAGGTGGGGTAA
    TGGCTCACCTAGGCGACGATC
    CCTAGCTGGTCTGAGAGGATG
    ACCAGTCACACTGGAACTGAGA
    CACGGTCCAGACTCCTACGGG
    AGGCAGCAGTGGGGAATATTG
    CACAATGGGGGAAACCCTGAT
    GCAGCCATGCCGCGTGTGTGA
    AGAAGGCCTTCGGGTTGTAAAG
    CACTTTCAGCGGGGAGGAAGG
    CGATGGCGTTAATAGCGCTATC
    GATTGACGTTACCCGCAGAAGA
    AGCACCGGCTAACTCCGTGCC
    AGCAGCCGCGGTAATACGGAG
    GGTGCGAGCGTTAATCGGAATT
    ACTGGGCGTAAAGCGTACGCA
    GGCGGTCTGTTAAGTCAGATGT
    GAAATCCCCGGGCTCAACCTG
    GGAACTGCATTTGAAACTGGCA
    GGCTAGAGTCTCGTAGAGGGG
    GGTAGAATTCCAGGTGTAGCG
    GTGAAATGCGTAGAGATCTGGA
    GGAATACCGGTGGCGAAGGCG
    GCCCCCTGGACGAAGACTGAC
    GCTCAGGTACGAAAGCGTGGG
    GAGCAAACAGGATTAGATACCC
    TGGTAGTCCACGCTGTAAACGA
    TGTCGATTTGAAGGTTGTGGCC
    TTGAGCCGTGGCTTTCGGAGCT
    AACGTGTTAAATCGACCGCCTG
    GGGAGTACGGCCGCAAGGTTA
    AAACTCAAATGAATTGACGGGG
    GCCCGCACAAGCGGTGGAGCA
    TGTGGTTTAATTCGATGCAACG
    CGAAGAACCTTACCTACTCTTG
    ACATCCAGAGAACTTGGCAGAG
    ATGCTTTGGTGCCTTCGGGAAC
    TCTGAGACAGGTGCTGCATGG
    CTGTCGTCAGCTCGTGTTGTGA
    AATGTTGGGTTAAGTCCCGCAA
    CGAGCGCAACCCTTATCCTTTA
    TTGCCAGCGATTCGGTCGGGA
    ACTCAAAGGAGACTGCCGGTG
    ATAAACCGGAGGAAGGTGGGG
    ATGACGTCAAGTCATCATGGCC
    CTTACGAGTAGGGCTACACACG
    TGCTACAATGGCGCATACAAAG
    AGAAGCGATCTCGCGAGAGTC
    AGCGGACCTCATAAAGTGCGTC
    GTAGTCCGGATTGGAGTCTGCA
    ACTCGACTCCATGAAGTCGGAA
    TCGCTAGTAATCGTGGATCAGA
    ATGCCACGGTGAATACGTTCCC
    GGGCCTTGTACACACCGCCCG
    TCACACCATGGGAGTGGGTTG
    CAAAAGAAGTAGGTAGCTTAAC
    CTTCGGGAGGGCGCTTACCAC
    TTTGTGATTCATGACTGGGGTG
    (SEQ ID NO: 16)
    Hartigiapinicola The pine bark bacteriocytes AGATTTAACGCTGGCGGCAGG
    adelgid CCTAACACATGCAAGTCGAGCG
    GTACCAGAAGAAGCTTGCTTCT
    TGCTGACGAGCGGCGGACGGG
    TGAGTAATGTATGGGGATCTGC
    CCGACAGAGGGGGATAACTATT
    GGAAACGGTAGCTAATACCGCA
    TAATCTCTGAGGAGCAAAGCAG
    GGGAACTTCGGTCCTTGCGCTA
    TCGGATGAACCCATATGGGATT
    AGCTAGTAGGTGAGGTAATGG
    CTCCCCTAGGCAACGATCCCTA
    GCTGGTCTGAGAGGATGATCA
    GCCACACTGGGACTGAGACAC
    GGCCCAGACTCCTACGGGAGG
    CAGCAGTGGGGAATATTGCACA
    ATGGGCGAAAGCCTGATGCAG
    CCATGCCGCGTGTATGAAGAA
    GGCTTTAGGGTTGTAAAGTACT
    TTCAGTCGAGAGGAAAACATTG
    ATGCTAATATCATCAATTATTGA
    CGTTTCCGACAGAAGAAGCACC
    GGCTAACTCCGTGCCAGCAGC
    CGCGGTAATACGGAGGGTGCA
    AGCGTTAATCGGAATTACTGGG
    CGTAAAGCGCACGCAGGCGGT
    TAATTAAGTTAGATGTGAAAGC
    CCCGGGCTTAACCCAGGAATA
    GCATATAAAACTGGTCAACTAG
    AGTATTGTAGAGGGGGGTAGA
    ATTCCATGTGTAGCGGTGAAAT
    GCGTAGAGATGTGGAGGAATA
    CCAGTGGCGAAGGCGGCCCCC
    TGGACAAAAACTGACGCTCAAA
    TGCGAAAGCGTGGGGAGCAAA
    CAGGATTAGATACCCTGGTAGT
    CCATGCTGTAAACGATGTCGAT
    TTGGAGGTTGTTCCCTTGAGGA
    GTAGCTTCCGTAGCTAACGCGT
    TAAATCGACCGCCTGGGGGAG
    TACGACTGCAAGGTTAAAACTC
    AAATGAATTGACGGGGGCCCG
    CACAAGCGGTGGAGCATGTGG
    TTTAATTCGATGCAACGCGAAA
    AACCTTACCTACTCTTGACATC
    CAGATAATTTAGCAGAAATGCT
    TTAGTACCTTCGGGAAATCTGA
    GACAGGTGCTGCATGGCTGTC
    GTCAGCTCGTGTTGTGAAATGT
    TGGGTTAAGTCCCGCAACGAG
    CGCAACCCTTATCCTTTGTTGC
    CAGCGATTAGGTCGGGAACTC
    AAAGGAGACTGCCGGTGATAAA
    CCGGAGGAAGGTGGGGATGAC
    GTCAAGTCATCATGGCCCTTAC
    GAGTAGGGCTACACACGTGCT
    ACAATGGCATATACAAAGGGAA
    GCAACCTCGCGAGAGCAAGCG
    AAACTCATAAATTATGTCGTAGT
    TCAGATTGGAGTCTGCAACTCG
    ACTCCATGAAGTCGGAATCGCT
    AGTAATCGTAGATCAGAATGCT
    ACGGTGAATACGTTCCCGGGC
    CTTGTACACACCGCCCGTCACA
    CCATGGGAGTGGGTTGCAAAA
    GAAGTAGGTAACTTAACCTTAT
    GGAAAGCGCTTACCACTTTGTG
    ATTCATAACTGGGGTG
    (SEQ ID NO: 17)
    Wigglesworthia tsetse fly bacteriocytes
    glossinidia (Diptera:
    Glossinidae)
    Beta proteobacteria
    Tremblayaphenacola Phenacoccus bacteriomes AGGTAATCCAGCCACACCTTCC
    avenae AGTACGGCTACCTTGTTACGAC
    (TPPAVE). TTCACCCCAGTCACAACCCTTA
    CCTTCGGAACTGCCCTCCTCAC
    AACTCAAACCACCAAACACTTT
    TAAATCAGGTTGAGAGAGGTTA
    GGCCTGTTACTTCTGGCAAGAA
    TTATTTCCATGGTGTGACGGGC
    GGTGTGTACAAGACCCGAGAA
    CATATTCACCGTGGCATGCTGA
    TCCACGATTACTAGCAATTCCA
    ACTTCATGCACTCGAGTTTCAG
    AGTACAATCCGAACTGAGGCC
    GGCTTTGTGAGATTAGCTCCCT
    TTTGCAAGTTGGCAACTCTTTG
    GTCCGGCCATTGTATGATGTGT
    GAAGCCCCACCCATAAAGGCC
    ATGAGGACTTGACGTCATCCCC
    ACCTTCCTCCAACTTATCGCTG
    GCAGTCTCTTTAAGGTAACTGA
    CTAATCCAGTAGCAATTAAAGA
    CAGGGGTTGCGCTCGTTACAG
    GACTTAACCCAACATCTCACGA
    CACGAGCTGACGACAGCCATG
    CAGCACCTGTGCACTAATTCTC
    TTTCAAGCACTCCCGCTTCTCA
    ACAGGATCTTAGCCATATCAAA
    GGTAGGTAAGGTTTTTCGCGTT
    GCATCGAATTAATCCACATCAT
    CCACTGCTTGTGCGGGTCCCC
    GTCAATTCCTTTGAGTTTTAACC
    TTGCGGCCGTACTCCCCAGGC
    GGTCGACTTGTGCGTTAGCTGC
    ACCACTGAAAAGGAAAACTGCC
    CAATGGTTAGTCAACATCGTTT
    AGGGCATGGACTACCAGGGTA
    TCTAATCCTGTTTGCTCCCCAT
    GCTTTAGTGTCTGAGCGTCAGT
    AACGAACCAGGAGGCTGCCTA
    CGCTTTCGGTATTCCTCCACAT
    CTCTACACATTTCACTGCTACAT
    GCGGAATTCTACCTCCCCCTCT
    CGTACTCCAGCCTGCCAGTAAC
    TGCCGCATTCTGAGGTTAAGCC
    TCAGCCTTTCACAGCAATCTTA
    ACAGGCAGCCTGCACACCCTTT
    ACGCCCAATAAATCTGATTAAC
    GCTCGCACCCTACGTATTACCG
    CGGCTGCTGGCACGTAGTTTG
    CCGGTGCTTATTCTTTCGGTAC
    AGTCACACCACCAAATTGTTAG
    TTGGGTGGCTTTCTTTCCGAAC
    AAAAGTGCTTTACAACCCAAAG
    GCCTTCTTCACACACGCGGCAT
    TGCTGGATCAGGCTTCCGCCCA
    TTGTCCAAGATTCCTCACTGCT
    GCCTTCCTCAGAAGTCTGGGCC
    GTGTCTCAGTCCCAGTGTGGCT
    GGCCGTCCTCTCAGACCAGCTA
    CCGATCATTGCCTTGGGAAGCC
    ATTACCTTTCCAACAAGCTAATC
    AGACATCAGCCAATCTCAGAGO
    GCAAGGCAATTGGTCCCCTGCT
    TTCATTCTGCTTGGTAGAGAAC
    TTTATGCGGTATTAATTAGGCTT
    TCACCTAGCTGTCCCCCACTCT
    GAGGCATGTTCTGATGCATTAC
    TCACCCGTTTGCCACTTGCCAC
    CAAGCCTAAGCCCGTGTTGCC
    GTTCGACTTGCATGTGTAAGGC
    ATGCCGCTAGCGTTCAATCTGA
    GCCAGGATCAAACTCT
    (SEQ ID NO: 18)
    Tremblayaprinceps citrus bacteriomes AGAGTTTGATCCTGGCTCAGAT
    mealybug TGAACGCTAGCGGCATGCATTA
    Planococcus CACATGCAAGTCGTACGGCAG
    citri CACGGGCTTAGGCCTGGTGGC
    GAGTGGCGAACGGGTGAGTAA
    CGCCTCGGAACGTGCCTTGTA
    GTGGGGGATAGCCTGGCGAAA
    GCCAGATTAATACCGCATGAAG
    CCGCACAGCATGCGCGGTGAA
    AGTGGGGGATTCTAGCCTCAC
    GCTACTGGATCGGCCGGGGTC
    TGATTAGCTAGTTGGCGGGGTA
    ATGGCCCACCAAGGCTTAGATC
    AGTAGCTGGTCTGAGAGGACG
    ATCAGCCACACTGGGACTGAG
    ACACGGCCCAGACTCCTACGG
    GAGGCAGCAGTGGGGAATCTT
    GGACAATGGGCGCAAGCCTGA
    TCCAGCAATGCCGCGTGTGTGA
    AGAAGGCCTTCGGGTCGTAAA
    GCACTTTTGTTCGGGATGAAGG
    GGGGCGTGCAAACACCATGCC
    CTCTTGACGATACCGAAAGAAT
    AAGCACCGGCTAACTACGTGC
    CAGCAGCCGCGGTAATACGTA
    GGGTGCGAGCGTTAATCGGAA
    TCACTGGGCGTAAAGGGTGCG
    CGGGTGGTTTGCCAAGACCCC
    TGTAAAATCCTACGGCCCAACC
    GTAGTGCTGCGGAGGTTACTG
    GTAAGCTTGAGTATGGCAGAG
    GGGGGTAGAATTCCAGGTGTA
    GCGGTGAAATGCGTAGATATCT
    GGAGGAATACCGAAGGCGAAG
    GCAACCCCCTGGGCCATCACT
    GACACTGAGGCACGAAAGCGT
    GGGGAGCAAACAGGATTAGAT
    ACCCTGGTAGTCCACGCCCTAA
    ACCATGTCGACTAGTTGTCGGG
    GGGAGCCCTTTTTCCTCGGTGA
    CGAAGCTAACGCATGAAGTCGA
    CCGCCTGGGGAGTACGACCGC
    AAGGTTAAAACTCAAAGGAATT
    GACGGGGACCCGCACAAGCGG
    TGGATGATGTGGATTAATTCGA
    TGCAACGCGAAAAACCTTACCT
    ACCCTTGACATGGCGGAGATTC
    TGCCGAGAGGCGGAAGTGCTC
    GAAAGAGAATCCGTGCACAGG
    TGCTGCATGGCTGTCGTCAGCT
    CGTGTCGTGAGATGTTGGGTTA
    AGTCCCATAACGAGCGCAACC
    CCCGTCTTTAGTTGCTACCACT
    GGGGCACTCTATAGAGACTGC
    CGGTGATAAACCGGAGGAAGG
    TGGGGACGACGTCAAGTCATC
    ATGGCCTTTATGGGTAGGGCTT
    CACACGTCATACAATGGCTGGA
    GCAAAGGGTCGCCAACTCGAG
    AGAGGGAGCTAATCCCACAAAC
    CCAGCCCCAGTTCGGATTGCAC
    TCTGCAACTCGAGTGCATGAAG
    TCGGAATCGCTAGTAATCGTGG
    ATCAGCATGCCACGGTGAATAC
    GTTCTCGGGTCTTGTACACACC
    GCCCGTCACACCATGGGAGTA
    AGCCGCATCAGAAGCAGCCTC
    CCTAACCCTATGCTGGGAAGGA
    GGCTGCGAAGGTGGGGTCTAT
    GACTGGGGTGAAGTCGTAACA
    AGGTAGCCGTACCGGAAGGTG
    CGGCTGGATTACCT
    (SEQ ID NO: 19)
    Vidania bacteriomes
    Nasuia pestiferous bacteriomes AGTTTAATCCTGGCTCAGATTTA
    deltocephalinicola insect ACGCTTGCGACATGCCTAACAC
    host, ATGCAAGTTGAACGTTGAAAAT
    Macrosteles ATTTCAAAGTAGCGTATAGGTG
    quadri- AGTATAACATTTAAACATACCTT
    punctulatus AAAGTTCGGAATACCCCGATGA
    (Hemiptera: AAATCGGTATAATACCGTATAA
    Cicadellidae) AAGTATTTAAGAATTAAAGCGG
    GGAAAACCTCGTGCTATAAGAT
    TGTTAAATGCCTGATTAGTTTGT
    TGGTTTTTAAGGTAAAAGCTTAC
    CAAGACTTTGATCAGTAGCTAT
    TCTGTGAGGATGTATAGCCACA
    TTGGGATTGAAATAATGCCCAA
    ACCTCTACGGAGGGCAGCAGT
    GGGGAATATTGGACAATGAGC
    GAAAGCTTGATCCAGCAATGTC
    GCGTGTGCGATTAAGGGAAACT
    GTAAAGCACTTTTTTTTAAGAAT
    AAGAAATTTTAATTAATAATTAA
    AATTTTTGAATGTATTAAAAGAA
    TAAGTACCGACTAATCACGTGC
    CAGCAGTCGCGGTAATACGTG
    GGGTGCGAGCGTTAATCGGATT
    TATTGGGCGTAAAGTGTATTCA
    GGCTGCTTAAAAAGATTTATATT
    AAATATTTAAATTAAATTTAAAA
    AATGTATAAATTACTATTAAGCT
    AGAGTTTAGTATAAGAAAAAAG
    AATTTTATGTGTAGCAGTGAAAT
    GCGTTGATATATAAAGGAACGC
    CGAAAGCGAAAGCATTTTTCTG
    TAATAGAACTGACGCTTATATA
    CGAAAGCGTGGGTAGCAAACA
    GGATTAGATACCCTGGTAGTCC
    ACGCCCTAAACTATGTCAATTA
    ACTATTAGAATTTTTTTTAGTGG
    TGTAGCTAACGCGTTAAATTGA
    CCGCCTGGGTATTACGATCGCA
    AGATTAAAACTCAAAGGAATTG
    ACGGGGACCAGCACAAGCGGT
    GGATGATGTGGATTAATTCGAT
    GATACGCGAAAAACCTTACCTG
    CCCTTGACATGGTTAGAATTTTA
    TTGAAAAATAAAAGTGCTTGGA
    AAAGAGCTAACACACAGGTGCT
    GCATGGCTGTCGTCAGCTCGT
    GTCGTGAGATGTTGGGTTAAGT
    CCCGCAACGAGCGCAACCCCT
    ACTCTTAGTTGCTAATTAAAGAA
    CTTTAAGAGAACAGCTAACAAT
    AAGTTTAGAGGAAGGAGGGGA
    TGACTTCAAGTCCTCATGGCCC
    TTATGGGCAGGGCTTCACACGT
    CATACAATGGTTAATACAAAAA
    GTTGCAATATCGTAAGATTGAG
    CTAATCTTTAAAATTAATCTTAG
    TTCGGATTGTACTCTGCAACTC
    GAGTACATGAAGTTGGAATCGC
    TAGTAATCGCGGATCAGCATGC
    CGCGGTGAATAGTTTAACTGGT
    CTTGTACACACCGCCCGTCACA
    CCATGGAAATAAATCTTGTTTTA
    AATGAAGTAATATATTTTATCAA
    AACAGGTTTTGTAACCGGGGTG
    AAGTCGTAACA
    (SEQ ID NO: 20)
    Zinderiainsecticola spittlebug bacteriocytes ATATAAATAAGAGTTTGATCCTG
    CARI Clastoptera GCTCAGATTGAACGCTAGCGGT
    arizonana ATGCTTTACACATGCAAGTCGA
    ACGACAATATTAAAGCTTGCTTT
    AATATAAAGTGGCGAACGGGTG
    AGTAATATATCAAAACGTACCTT
    AAAGTGGGGGATAACTAATTGA
    AAAATTAGATAATACCGCATATT
    AATCTTAGGATGAAAATAGGAA
    TAATATCTTATGCTTTTAGATCG
    GTTGATATCTGATTAGCTAGTT
    GGTAGGGTAAATGCTTACCAAG
    GCAATGATCAGTAGCTGGTTTT
    AGCGAATGATCAGCCACACTG
    GAACTGAGACACGGTCCAGAC
    TTCTACGGAAGGCAGCAGTGG
    GGAATATTGGACAATGGGAGAA
    ATCCTGATCCAGCAATACCGCG
    TGAGTGATGAAGGCCTTAGGGT
    CGTAAAACTCTTTTGTTAGGAA
    AGAAATAATTTTAAATAATATTT
    AAAATTGATGACGGTACCTAAA
    GAATAAGCACCGGCTAACTACG
    TGCCAGCAGCCGCGGTAATAC
    GTAGGGTGCAAGCGTTAATCG
    GAATTATTGGGCGTAAAGAGTG
    CGTAGGCTGTTATATAAGATAG
    ATGTGAAATACTTAAGCTTAACT
    TAAGAACTGCATTTATTACTGTT
    TAACTAGAGTTTATTAGAGAGA
    AGTGGAATTTTATGTGTAGCAG
    TGAAATGCGTAGATATATAAAG
    GAATATCGATGGCGAAGGCAG
    CTTCTTGGAATAATACTGACGC
    TGAGGCACGAAAGCGTGGGGA
    GCAAACAGGATTAGATACCCTG
    GTAGTCCACGCCCTAAACTATG
    TCTACTAGTTATTAAATTAAAAA
    TAAAATTTAGTAACGTAGCTAAC
    GCATTAAGTAGACCGCCTGGG
    GAGTACGATCGCAAGATTAAAA
    CTCAAAGGAATTGACGGGGAC
    CCGCACAAGCGGTGGATGATG
    TGGATTAATTCGATGCAACACG
    AAAAACCTTACCTACTCTTGAC
    ATGTTTGGAATTTTAAAGAAATT
    TAAAAGTGCTTGAAAAAGAACC
    AAAACACAGGTGCTGCATGGCT
    GTCGTCAGCTCGTGTCGTGAGA
    TGTTGGGTTAAGTCCCGCAACG
    AGCGCAACCCTTGTTATTATTT
    GCTAATAAAAAGAACTTTAATAA
    GACTGCCAATGACAAATTGGAG
    GAAGGTGGGGATGACGTCAAG
    TCCTCATGGCCCTTATGAGTAG
    GGCTTCACACGTCATACAATGA
    TATATACAATGGGTAGCAAATTT
    GTGAAAATGAGCCAATCCTTAA
    AGTATATCTTAGTTCGGATTGTA
    GTCTGCAACTCGACTACATGAA
    GTTGGAATCGCTAGTAATCGCG
    GATCAGCATGCCGCGGTGAAT
    ACGTTCTCGGGTCTTGTACACA
    CCGCCCGTCACACCATGGAAG
    TGATTTTTACCAGAAATTATTTG
    TTTAACCTTTATTGGAAAAAAAT
    AATTAAGGTAGAATTCATGACT
    GGGGTGAAGTCGTAACAAGGT
    AGCAGTATCGGAAGGTGCGGC
    TGGATTACATTTTAAAT
    (SEQ ID NO: 21)
    Profftellaarmatura Diaphorina bacteriomes
    citri,
    the Asian 
    citrus
    psyllid
    Alpha proteobacteria
    Hodgkinia Cicada bacteriome AATGCTGGCGGCAGGCCTAAC
    Diceroprocta ACATGCAAGTCGAGCGGACAA
    semicincta CGTTCAAACGTTGTTAGCGGCG
    AACGGGTGAGTAATACGTGAGA
    ATCTACCCATCCCAACGTGATA
    ACATAGTCAACACCATGTCAAT
    AACGTATGATTCCTGCAACAGG
    TAAAGATTTTATCGGGGATGGA
    TGAGCTCACGCTAGATTAGCTA
    GTTGGTGAGATAAAAGCCCACC
    AAGGCCAAGATCTATAGCTGGT
    CTGGAAGGATGGACAGCCACA
    TTGGGACTGAGACAAGGCCCA
    ACCCTCTAAGGAGGGCAGCAG
    TGAGGAATATTGGACAATGGGC
    GTAAGCCTGATCCAGCCATGCC
    GCATGAGTGATTGAAGGTCCAA
    CGGACTGTAAAACTCTTTTCTC
    CAGAGATCATAAATGATAGTAT
    CTGGTGATATAAGCTCCGGCCA
    ACTTCGTGCCAGCAGCCGCGG
    TAATACGAGGGGAGCGAGTATT
    GTTCGGTTTTATTGGGCGTAAA
    GGGTGTCCAGGTTGCTAAGTAA
    GTTAACAACAAAATCTTGAGATT
    CAACCTCATAACGTTCGGTTAA
    TACTACTAAGCTCGAGCTTGGA
    TAGAGACAAACGGAATTCCGAG
    TGTAGAGGTGAAATTCGTTGAT
    ACTTGGAGGAACACCAGAGGC
    GAAGGCGGTTTGTCATACCAAG
    CTGACACTGAAGACACGAAAGC
    ATGGGGAGCAAACAGGATTAG
    ATACCCTGGTAGTCCATGCCCT
    AAACGTTGAGTGCTAACAGTTC
    GATCAAGCCACATGCTATGATC
    CAGGATTGTACAGCTAACGCGT
    TAAGCACTCCGCCTGGGTATTA
    CGACCGCAAGGTTAAAACTCAA
    AGGAATTGACGGAGACCCGCA
    CAAGCGGTGGAGCATGTGGTTT
    AATTCGAAGCTACACGAAGAAC
    CTTACCAGCCCTTGACATACCA
    TGGCCAACCATCCTGGAAACAG
    GATGTTGTTCAAGTTAAACCCTT
    GAAATGCCAGGAACAGGTGCT
    GCATGGCTGTTGTCAGTTCGTG
    TCGTGAGATGTATGGTTAAGTC
    CCAAAACGAACACAACCCTCAC
    CCATAGTTGCCATAAACACAAT
    TGGGTTCTCTATGGGTACTGCT
    AACGTAAGTTAGAGGAAGGTGA
    GGACCACAACAAGTCATCATGG
    CCCTTATGGGCTGGGCCACAC
    ACATGCTACAATGGTGGTTACA
    AAGAGCCGCAACGTTGTGAGA
    CCGAGCAAATCTCCAAAGACCA
    TCTCAGTCCGGATTGTACTCTG
    CAACCCGAGTACATGAAGTAGG
    AATCGCTAGTAATCGTGGATCA
    GCATGCCACGGTGAATACGTTC
    TCGGGTCTTGTACACGCCGCC
    CGTCACACCATGGGAGCTTCG
    CTCCGATCGAAGTCAAGTTACC
    CTTGACCACATCTTGGCAAGTG
    ACCGA
    (SEQ ID NO: 22)
    Wolbachia sp. wPip Mosquito bacteriome AAATTTGAGAGTTTGATCCTGG
    Culex CTCAGAATGAACGCTGGCGGC
    quinque- AGGCCTAACACATGCAAGTCGA
    fasciatus ACGGAGTTATATTGTAGCTTGC
    TATGGTATAACTTAGTGGCAGA
    CGGGTGAGTAATGTATAGGAAT
    CTACCTAGTAGTACGGAATAAT
    TGTTGGAAACGACAACTAATAC
    CGTATACGCCCTACGGGGGAA
    AAATTTATTGCTATTAGATGAGC
    CTATATTAGATTAGCTAGTTGGT
    GGGGTAATAGCCTACCAAGGTA
    ATGATCTATAGCTGATCTGAGA
    GGATGATCAGCCACACTGGAA
    CTGAGATACGGTCCAGACTCCT
    ACGGGAGGCAGCAGTGGGGAA
    TATTGGACAATGGGCGAAAGCC
    TGATCCAGCCATGCCGCATGA
    GTGAAGAAGGCCTTTGGGTTGT
    AAAGCTCTTTTAGTGAGGAAGA
    TAATGACGGTACTCACAGAAGA
    AGTCCTGGCTAACTCCGTGCCA
    GCAGCCGCGGTAATACGGAGA
    GGGCTAGCGTTATTCGGAATTA
    TTGGGCGTAAAGGGCGCGTAG
    GCTGGTTAATAAGTTAAAAGTG
    AAATCCCGAGGCTTAACCTTGG
    AATTGCTTTTAAAACTATTAATC
    TAGAGATTGAAAGAGGATAGAG
    GAATTCCTGATGTAGAGGTAAA
    ATTCGTAAATATTAGGAGGAAC
    ACCAGTGGCGAAGGCGTCTAT
    CTGGTTCAAATCTGACGCTGAA
    GCGCGAAGGCGTGGGGAGCAA
    ACAGGATTAGATACCCTGGTAG
    TCCACGCTGTAAACGATGAATG
    TTAAATATGGGGAGTTTACTTTC
    TGTATTACAGCTAACGCGTTAA
    ACATTCCGCCTGGGGACTACG
    GTCGCAAGATTAAAACTCAAAG
    GAATTGACGGGGACCCGCACA
    AGCGGTGGAGCATGTGGTTTAA
    TTCGATGCAACGCGAAAAACCT
    TACCACTTCTTGACATGAAAAT
    CATACCTATTCGAAGGGATAGG
    GTCGGTTCGGCCGGATTTTACA
    CAAGTGTTGCATGGCTGTCGTC
    AGCTCGTGTCGTGAGATGTTGG
    GTTAAGTCCCGCAACGAGCGC
    AACCCTCATCCTTAGTTGCCAT
    CAGGTAATGCTGAGTACTTTAA
    GGAAACTGCCAGTGATAAGCTG
    GAGGAAGGTGGGGATGATGTC
    AAGTCATCATGGCCTTTATGGA
    GTGGGCTACACACGTGCTACAA
    TGGTGTCTACAATGGGCTGCAA
    GGTGCGCAAGCCTAAGCTAATC
    CCTAAAAGACATCTCAGTTCGG
    ATTGTACTCTGCAACTCGAGTA
    CATGAAGTTGGAATCGCTAGTA
    ATCGTGGATCAGCATGCCACG
    GTGAATACGTTCTCGGGTCTTG
    TACACACTGCCCGTCACGCCAT
    GGGAATTGGTTTCACTCGAAGC
    TAATGGCCTAACCGCAAGGAAG
    GAGTTATTTAAAGTGGGATCAG
    TGACTGGGGTGAAGTCGTAACA
    AGGTAGCAGTAGGGGAATCTG
    CAGCTGGATTACCTCCTTA
    (SEQ ID NO: 23)
    Bacteroidetes
    Uzinuradiaspidicola armoured scale bacteriocytes AAAGGAGATATTCCAACCACAC
    insects CTTCCGGTACGGTTACCTTGTT
    ACGACTTAGCCCTAGTCATCAA
    GTTTACCTTAGGCAGACCACTG
    AAGGATTACTGACTTCAGGTAC
    CCCCGACTCCCATGGCTTGAC
    GGGCGGTGTGTACAAGGTTCG
    AGAACATATTCACCGCGCCATT
    GCTGATGCGCGATTACTAGCGA
    TTCCTGCTTCATAGAGTCGAAT
    TGCAGACTCCAATCCGAACTGA
    GACTGGTTTTAGAGATTAGCTC
    CTGATCACCCAGTGGCTGCCCT
    TTGTAACCAGCCATTGTAGCAC
    GTGTGTAGCCCAAGGCATAGA
    GGCCATGATGATTTGACATCAT
    CCCCACCTTCCTCACAGTTTAC
    ACCGGCAGTTTTGTTAGAGTCC
    CCGGCTTTACCCGATGGCAACT
    AACAATAGGGGTTGCGCTCGTT
    ATAGGACTTAACCAAACACTTC
    ACAGCACGAACTGAAGACAACC
    ATGCAGCACCTTGTAATACGTC
    GTATAGACTAAGCTGTTTCCAG
    CTTATTCGTAATACATTTAAGCC
    TTGGTAAGGTTCCTCGCGTATC
    ATCGAATTAAACCACATGCTCC
    ACCGCTTGTGCGAACCCCCGT
    CAATTCCTTTGAGTTTCAATCTT
    GCGACTGTACTTCCCAGGTGGA
    TCACTTATCGCTTTCGCTAAGC
    CACTGAATATCGTTTTTCCAATA
    GCTAGTGATCATCGTTTAGGGC
    GTGGACTACCAGGGTATCTAAT
    CCTGTTTGCTCCCCACGCTTTC
    GTGCACTGAGCGTCAGTAAAGA
    TTTAGCAACCTGCCTTCGCTAT
    CGGTGTTCTGTATGATATCTAT
    GCATTTCACCGCTACACCATAC
    ATTCCAGATGCTCCAATCTTACT
    CAAGTTTACCAGTATCAATAGC
    AATTTTACAGTTAAGCTGTAAG
    CTTTCACTACTGACTTAATAAAC
    AGCCTACACACCCTTTAAACCC
    AATAAATCCGA
    ATAACGCTTGTGTCATCCGTAT
    TGCCGCGGCTGCTGGCACGGA
    ATTAGCCGACACTTATTCGTATA
    GTACCTTCAATCTCCTATCACG
    TAAGATATTTTATTTCTATACAA
    AAGCAGTTTACAACCTAAAAGA
    CCTTCATCCTGCACGCGACGTA
    GCTGGTTCAGAGTTTCCTCCAT
    TGACCAATATTCCTCACTGCTG
    CCTCCCGTAGGAGTCTGGTCC
    GTGTCTCAGTACCAGTGTGGAG
    GTACACCCTCTTAGGCCCCCTA
    CTGATCATAGTCTTGGTAGAGC
    CATTACCTCACCAACTAACTAAT
    CAAACGCAGGCTCATCTTTTGC
    CACCTAAGTTTTAATAAAGGOT
    CCATGCAGAAACTTTATATTATG
    GGGGATTAATCAGAATTTCTTC
    TGGCTATACCCCAGCAAAAGGT
    AGATTGCATACGTGTTACTCAC
    CCATTCGCCGGTCGCCGACAA
    ATTAAAAATTTTTCGATGCCCCT
    CGACTTGCATGTGTTAAGCTCG
    CCGCTAGCGTTAATTCTGAGCC
    AGGATCAAACTCTTCGTTGTAG
    (SEQ ID NO: 24)
    Sulciamuelleri Blue-Green bacteriocytes CTCAGGATAAACGCTAGCGGA
    Sharpshooter GGGCTTAACACATGCAAGTCGA
    and several GGGGCAGCAAAAATAATTATTT
    other TTGGCGACCGGCAAACGGGTG
    leafhopper AGTAATACATACGTAACTTTCCT
    species TATGCTGAGGAATAGCCTGAGG
    AAACTTGGATTAATACCTCATAA
    TACAATTTTTTAGAAAGAAAAAT
    TGTTAAAGTTTTATTATGGCATA
    AGATAGGCGTATGTCCAATTAG
    TTAGTTGGTAAGGTAATGGCTT
    ACCAAGACGATGATTGGTAGG
    GGGCCTGAGAGGGGCGTTCCC
    CCACATTGGTACTGAGACACGG
    ACCAAACTTCTACGGAAGGCTG
    CAGTGAGGAATATTGGTCAATG
    GAGGAAACTCTGAACCAGCCA
    CTCCGCGTGCAGGATGAAAGA
    AAGCCTTATTGGTTGTAAACTG
    CTTTTGTATATGAATAAAAAATT
    CTAATTATAGAAATAATTGAAGG
    TAATATACGAATAAGTATCGACT
    AACTCTGTGCCAGCAGTCGCG
    GTAAGACAGAGGATACAAGCGT
    TATCCGGATTTATTGGGTTTAAA
    GGGTGCGTAGGCGGTTTTTAAA
    GTCAGTAGTGAAATCTTAAAGC
    TTAACTTTAAAAGTGCTATTGAT
    ACTGAAAAACTAGAGTAAGGTT
    GGAGTAACTGGAATGTGTGGT
    GTAGCGGTGAAATGCATAGATA
    TCACACAGAACACCGATAGCGA
    AAGCAAGTTACTAACCCTATAC
    TGACGCTGAGTCACGAAAGCAT
    GGGGAGCAAACAGGATTAGAT
    ACCCTGGTAGTCCATGCCGTAA
    ACGATGATCACTAACTATTGGG
    TTTTATACGTTGTAATTCAGTGG
    TGAAGCGAAAGTGTTAAGTGAT
    CCACCTGAGGAGTACGACCGC
    AAGGTTGAAACTCAAAGGAATT
    GACGGGGGCCCGCACAATCGG
    TGGAGCATGTGGTTTAATTCGA
    TGATACACGAGGAACCTTACCA
    AGACTTAAATGTACTACGAATA
    AATTGGAAACAATTTAGTCAAG
    CGACGGAGTACAAGGTGCTGC
    ATGGTTGTCGTCAGCTCGTGCC
    GTGAGGTGTAAGGTTAAGTCCT
    TTAAACGAGCGCAACCCTTATT
    ATTAGTTGCCATCGAGTAATGT
    CAGGGGACTCTAATAAGACTGC
    CGGCGCAAGCCGAGAGGAAGG
    TGGGGATGACGTCAAATCATCA
    CGGCCCTTACGTCTTGGGCCA
    CACACGTGCTACAATGATCGGT
    ACAAAAGGGAGCGACTGGGTG
    ACCAGGAGCAAATCCAGAAAG
    CCGATCTAAGTTCGGATTGGAG
    TCTGAAACTCGACTCCATGAAG
    CTGGAATCGCTAGTAATCGTGC
    ATCAGCCATGGCACGGTGAATA
    TGTTCCCGGGCCTTGTACACAC
    CGCCCGTCAAGCCATGGAAGT
    TGGAAGTACCTAAAGTTGGTTC
    GCTACCTAAGGTAAGTCTAATA
    ACTGGGGCTAAGTCGTAACAAG
    GTA
    (SEQ ID NO: 25)
    Yeast like
    Symbiotaphrina Anobiid mycetome AGATTAAGCCATGCAAGTCTAA
    buchneri beetles between the GTATAAGNAATCTATACNGTGA
    voucher JCM9740 Stegobium foregut and AACTGCGAATGGCTCATTAAAT
    paniceum midgut CAGTTATCGTTTATTTGATAGTA
    CCTTACTACATGGATAACCGTG
    GTAATTCTAGAGCTAATACATG
    CTAAAAACCCCGACTTCGGAAG
    GGGTGTATTTATTAGATAAAAAA
    CCAATGCCCTTCGGGGCTCCTT
    GGTGATTCATGATAACTTAACG
    AATCGCATGGCCTTGCGCCGG
    CGATGGTTCATTCAAATTTCTG
    CCCTATCAACTTTCGATGGTAG
    GATAGTGGCCTACCATGGTTTT
    AACGGGTAACGGGGAATTAGG
    GTTCGATTCCGGAGAGGGAGC
    CTGAGAAACGGCTACCACATCC
    AAGGAAGGCAGCAGGCGCGCA
    AATTACCCAATCCCGACACGGG
    GAGGTAGTGACAATAAATACTG
    ATACAGGGCTCTTTTGGGTCTT
    GTAATTGGAATGAGTACAATTT
    AAATCCCT
    TAACGAGGAACAATTGGAGGG
    CAAGTCTGGTGCCAGCAGCCG
    CGGTAATTCCAGCTCCAATAGC
    GTATATTAAAGTTGTTGCAGTTA
    AAAAGCTCGTAGTTGAACCTTG
    GGCCTGGCTGGCCGGTCCGCC
    TAACCGCGTGTACTGGTCCGG
    CCGGGCCTTTCCTTCTGGGGA
    GCCGCATGCCCTTCACTGGGT
    GTGTCGGGGAACCAGGACTTTT
    ACTTTGAAAAAATTAGAGTGTTC
    AAAGCAGGCCTATGCTCGAATA
    CATTAGCATGGAATAATAGAAT
    AGGACGTGCGGTTCTATTTTGT
    TGGTTTCTAGGACCGCCGTAAT
    GATTAATAGGGATAGTCGGGG
    GCATCAGTATTCAATTGTCAGA
    GGTGAAATTCTTGGATTTATTGA
    AGACTAACTACTGCGAAAGCAT
    TTGCCA
    AGGATGTTTTCATTAATCAGTGA
    ACGAAAGTTAGGGGATCGAAG
    ACGATCAGATACCGTCGTAGTC
    TTAACCATAAACTATGCCGACT
    AGGGATCGGGCGATGTTATTAT
    TTTGACTCGCTCGGCACCTTAC
    GAGAAATCAAAGTCTTTGGGTT
    CTGGGGGGAGTATGGTCGCAA
    GGCTGAAACTTAAAGAAATTGA
    CGGAAGGGCACCACCAGGAGT
    GGAGCCTGCGGCTTAATTTGAC
    TCAACACGGGGAAACTCACCA
    GGTCCAGACACATTAAGGATTG
    ACAGATTGAGAGCTCTTTCTTG
    ATTATGTGGGTGGTGGTGCATG
    GCCGTTCTTAGTTGGTGGAGTG
    ATTTGTCTGCTTAATTGCGATAA
    CGAACGAGACCTTAACCTGCTA
    AATAGCCCGGTCCGCTTTGGC
    GGGCCGCTGGCTTCTTAGAGG
    GACTATCGGCTCAAGCCGATG
    GAAGTTTGAGGCAATAACAGGT
    CTGTGATGCCCTTAGATGTTCT
    GGGCCGCACGCGCGCTACACT
    GACAGAGCCAACGAGTAAATCA
    CCTTGGCCGGAAGGTCTGGGT
    AATCTTGTTAAACTCTGTCGTG
    CTGGGGATAGAGCATTGCAATT
    ATTGCTCTTCAACGAGGAATTC
    CTAGTAAGCGCAAGTCATCAGC
    TTGCGCTGATTACGTCCCTGCC
    CTTTGTACACACCGCCCGTCGC
    TACTACCGATTGAATGGCTCAG
    TGAGGCCTTCGGACTGGCACA
    GGGACGTTGGCAACGACGACC
    CAGTGCCGG
    AAAGTTGGTCAAACTTGGTCAT
    TTAGAGGAAGTAAAAGTCGTAA
    CAAGGTTTCCGTAGGTGAACCT
    GCGGAAGGATCATTA
    (SEQ ID NO: 26)
    Symbiotaphrinakochii Anobiid mycetome TACCTGGTTGATTCTGCCAGTA
    voucher CBS 589.63 beetles GTCATATGCTTGTCTCAAAGATT
    Lasioderma AAGCCATGCAAGTCTAAGTATA
    serricome AGCAATCTATACGGTGAAACTG
    CGAATGGCTCATTAAATCAGTT
    ATCGTTTATTTGATAGTACCTTA
    CTACATGGATAACCGTGGTAAT
    TCTAGAGCTAATACATGCTAAA
    AACCTCGACTTCGGAAGGGGT
    GTATTTATTAGATAAAAAACCAA
    TGCCCTTCGGGGCTCCTTGGT
    GATTCATGATAACTTAACGAAT
    CGCATGGCCTTGCGCCGGCGA
    TGGTTCATTCAAATTTCTGCCCT
    ATCAACTTTCGATGGTAGGATA
    GTGGCCTACCATGGTTTCAACG
    GGTAACGGGGAATTAGGGTTC
    GATTCCGGAGAGGGAGCCTGA
    GAAACGGCTACCACATCCAAG
    GAAGGCAGCAGGCGCGCAAAT
    TACCCAATCCCGACACGGGGA
    GGTAGTGACAATAAATACTGAT
    ACAGGGCTCTTTTGGGTCTTGT
    AATTGGAATGAGTACAATTTAAA
    TCCCTTAACGAGGAACAATTGG
    AGGGCAAGTCTGGTGCCAGCA
    GCCGCGGTAATTCCAGCTCCAA
    TAGCGTATATTAAAGTTGTTGCA
    GTTAAAAAGCTCGTAGTTGAAC
    CTTGGGCCTGGCTGGCCGGTC
    CGCCTAACCGCGTGTACTGGTC
    CGGCCGGGCCTTTCCTTCTGG
    GGAGCCGCATGCCCTTCACTG
    GGTGTGTCGGGGAACCAGGAC
    TTTTACTTTGAAAAAATTAGAGT
    GTTCAAAGCAGGCCTATGCTCG
    AATACATTAGCATGGAATAATA
    GAATAGGACGTGTGGTTCTATT
    TTGTTGGTTTCTAGGACCGCCG
    TAATGATTAATAGGGATAGTCG
    GGGGCATCAGTATTCAATTGTC
    AGAGGTGAAATTCTTGGATTTA
    TTGAAGACTAACTACTGCGAAA
    GCATTTGCCAAGGATGTTTTCA
    TTAATCAGTGAACGAAAGTTAG
    GGGATCGAAGACGATCAGATA
    CCGTCGTAGTCTTAACCATAAA
    CTATGCCGACTAGGGATCGGG
    CGATGTTATTATTTTGACTCGCT
    CGGCACCTTACGAGAAATCAAA
    GTCTTTGGGTTCTGGGGGGAG
    TATGGTCGCAAGGCTGAAACTT
    AAAGAAATTGACGGAAGGGCA
    CCACCAGGAGTGGAGCCTGCG
    GCTTAATTTGACTCAACACGGG
    GAAACTCACCAGGTCCAGACAC
    ATTAAGGATTGACAGATTGAGA
    GCTCTTTCTTGATTATGTGGGT
    GGTGGTGCATGGCCGTTCTTAG
    TTGGTGGAGTGATTTGTCTGCT
    TAATTGCGATAACGAACGAGAC
    CTTAACCTGCTAAATAGCCCGG
    TCCGCTTTGGCGGGCCGCTGG
    CTTCTTAGAGGGACTATCGGCT
    CAAGCCGATGGAAGTTTGAGG
    CAATAACAGGTCTGTGATGCCC
    TTAGATGTTCTGGGCCGCACGC
    GCGCTACACTGACAGAGCCAA
    CGAGTACATCACCTTGGCCGG
    AAGGTCTGGGTAATCTTGTTAA
    ACTCTGTCGTGCTGGGGATAGA
    GCATTGCAATTATTGCTCTTCAA
    CGAGGAATTCCTAGTAAGCGCA
    AGTCATCAGCTTGCGCTGATTA
    CGTCCCTGCCCTTTGTACACAC
    CGCCCGTCGCTACTACCGATTG
    AATGGCTCAGTGAGGCCTTCG
    GACTGGCACAGGGACGTTGGC
    AACGACGACCCAGTGCCGGAA
    AGTTCGTCAAACTTGGTCATTTA
    GAGGAAGNNNAAGTCGTAACA
    AGGTTTCCGTAGGTGAACCTGC
    GGAAGGATCATTA
    (SEQ ID NO: 27)
    Primary extracelullar
    symbiont Host Location 16 rRNA
    fenitroth ion-degrading
    bacteria
    Burkholderia sp. SFA1 Riptortus Gut AGTTTGATCCTGGCTCAGATTG
    pedestris AACGCTGGCGGCATGCCTTAC
    ACATGCAAGTCGAACGGCAGC
    ACGGGGGCAACCCTGGTGGCG
    AGTGGCGAACGGGTGAGTAAT
    ACATCGGAACGTGTCCTGTAGT
    GGGGGATAGCCCGGCGAAAGC
    CGGATTAATACCGCATACGACC
    TAAGGGAGAAAGCGGGGGATC
    TTCGGACCTCGCGCTATAGGG
    GCGGCCGATGGCAGATTAGCT
    AGTTGGTGGGGTAAAGGCCTA
    CCAAGGCGACGATCTGTAGCT
    GGTCTGAGAGGACGACCAGCC
    ACACTGGGACTGAGACACGGC
    CCAGACTCCTACGGGAGGCAG
    CAGTGGGGAATTTTGGACAATG
    GGGGCAACCCTGATCCAGCAA
    TGCCGCGTGTGTGAAGAAGGC
    TTCGGGTTGTAAAGCACTTTTG
    TCCGGAAAGAAAACTTCGTCCC
    TAATATGGATGGAGGATGACGG
    TACCGGAAGAATAAGCACCGG
    CTAACTACGTGCCAGCAGCCG
    CGGTAATACGTAGGGTGCGAG
    CGTTAATCGGAATTACTGGGCG
    TAAAGCGTGCGCAGGCGGTCT
    GTTAAGACCGATGTGAAATCCC
    CGGGCTTAACCTGGGAACTGC
    ATTGGTGACTGGCAGGCTTTGA
    GTGTGGCAGAGGGGGGTAGAA
    TTCCACGTGTAGCAGTGAAATG
    CGTAGAGATGTGGAGGAATAC
    CGATGGCGAAGGCAGCCCCCT
    GGGCCAACTACTGACGCTCAT
    GCACGAAAGCGTGGGGAGCAA
    ACAGGATTAGATACCCTGGTAG
    TCCACGCCCTAAACGATGTCAA
    CTAGTTGTTGGGGATTCATTTC
    CTTAGTAACGTAGCTAACGCGT
    GAAGTTGACCGCCTGGGGAGT
    ACGGTCGCAAGATTAAAACTCA
    AAGGAATTGACGGGGACCCGC
    ACAAGCGGTGGATGATGTGGA
    TTAATTCGATGCAACGCGAAAA
    ACCTTACCTACCCTTGACATGG
    TCGGAACCCTGCTGAAAGGTG
    GGGGTGCTCGAAAGAGAACCG
    GCGCACAGGTGCTGCATGGCT
    GTCGTCAGCTCGTGTCGTGAGA
    TGTTGGGTTAAGTCCCGCAACG
    AGCGCAACCCTTGTCCTTAGTT
    GCTACGCAAGAGCACTCTAAG
    GAGACTGCCGGTGACAAACCG
    GAGGAAGGTGGGGATGACGTC
    AAGTCCTCATGGCCCTTATGGG
    TAGGGCTTCACACGTCATACAA
    TGGTCGGAACAGAGGGTTGCC
    AAGCCGCGAGGTGGAGCCAAT
    CCCAGAAAACCGATCGTAGTCC
    GGATCGCAGTCTGCAACTCGA
    CTGCGTGAAGCTGGAATCGCTA
    GTAATCGCGGATCAGCATGCC
    GCGGTGAATACGTTCCCGGGT
    CTTGTACACACCGCCCGTCACA
    CCATGGGAGTGGGTTTCACCA
    GAAGTAGGTAGCCTAACCGCAA
    GGAGGGCGCTTACCACGGTGG
    GATTCATGACTGGGGTGAAGTC
    GTAACAAGGTAGC
    (SEQ ID NO: 28)
    Burkholderia sp. KM-A Riptortus Gut GCAACCCTGGTGGCGAGTGGC
    pedestris GAACGGGTGAGTAATACATCG
    GAACGTGTCCTGTAGTGGGGG
    ATAGCCCGGCGAAAGCCGGAT
    TAATACCGCATACGATCTACGG
    AAGAAAGCGGGGGATCCTTCG
    GGACCTCGCGCTATAGGGGCG
    GCCGATGGCAGATTAGCTAGTT
    GGTGGGGTAAAGGCCTACCAA
    GGCGACGATCTGTAGCTGGTCT
    GAGAGGACGACCAGCCACACT
    GGGACTGAGACACGGCCCAGA
    CTCCTACGGGAGGCAGCAGTG
    GGGA
    ATTTTGGACAATGGGGGCAACC
    CTGATCCAGCAATGCCGCGTGT
    GTGAAGAAGGCCTTCGGGTTGT
    AAAGCACTTTTGTCCGGAAAGA
    AAACGTCTTGGTTAATACCTGA
    GGCGGATGACGGTACCGGAAG
    AATAAGCACCGGCTAACTACGT
    GCCAGCAGCCGCGGTAATACG
    TAGGGTGCGAGCGTTAATCGG
    AATTACTGGGCGTAAAGCGTGC
    GCAGGCGGTCTGTTAAGACCG
    ATGTGAAATCCCCGGGCTTAAC
    CTGGGAACTGCATTGGTGACTG
    GCAGGCTTTGAGTGTGGCAGA
    GGGGGGTAGAATTCCACGTGT
    AGCAGTGAAATGCGTAGAGATG
    TGGA
    GGAATACCGATGGCGAAGGCA
    GCCCCCTGGGCCAACACTGAC
    GCTCATGCACGAAAGCGTGGG
    GAGCAAACAGGATTAGATACCC
    TGGTAGTCCACGCCCTAAACGA
    TGTCAACTAGTTGTTGGGGATT
    CATTTCCTTAGTAACGTAGCTAA
    CGCGTGAAGTTGACCGCCTGG
    GGAGTACGGTCGCAAGATTAAA
    ACTCAAAGGAATTGACGGGGA
    CCCGCACAAGCGGTGGATGAT
    GTGGATTAATTCGATGCAACGC
    GAAAAACCTTACCTACCCTTGA
    CATGGTCGGAAGTCTGCTGAG
    AGGTGGACGTGCTCGAAAGAG
    AACCGGCGCACAGGTGCTGCA
    TGGCTGTCGTCAGCTCGTGTCG
    TGAGATGTTGGGTTAAGTCCCG
    CAACGAGCGCAACCCTTGTCCT
    TAGTTGCTACGCAAGAGCACTC
    TAAGGAGACTGCCGGTGACAA
    ACCGGAGGAAGGTGGGGATGA
    CGTCAAGTCCTCATGGCCCTTA
    TGGGTAGGGCTTCACACGTCAT
    ACAATGGTCGGAACAGAGGGT
    TGCCAAGCCGCGAGGTGGAGC
    CAATCCCAGAAAACCGATCGTA
    GTCCGGATCGCAGTCTGCAACT
    CGACTGCGTGAAGCTGGAATC
    GCTAG
    TAATCGCGGATCAGCATGCCG
    CGGTGAATACGTTCCCGGGTCT
    TGTACACACCGCCCGTCACACC
    ATGGGAGTGGGTTTCACCAGAA
    GTAGGTAGCCTAACCGCAAGG
    AGGGCGCTTACCACGGTGGGA
    TTCATGACTGGGGTGAAGT
    (SEQ ID NO: 29)
    Burkholderia sp. KM-G Riptortus Gut GCAACCCTGGTGGCGAGTGGC
    pedestris GAACGGGTGAGTAATACATCG
    GAACGTGTCCTGTAGTGGGGG
    ATAGCCCGGCGAAAGCCGGAT
    TAATACCGCATACGACCTAAGG
    GAGAAAGCGGGGGATCTTCGG
    ACCTCGCGCTATAGGGGCGGC
    CGATGGCAGATTAGCTAGTTGG
    TGGGGTAAAGGCCTACCAAGG
    CGACGATCTGTAGCTGGTCTGA
    GAGGACGACCAGCCACACTGG
    GACTGAGACACGGCCCAGACT
    CCTACGGGAGGCAGCAGTGGG
    GAATTTTGGACAATGGGGGCAA
    CCCTGATCCAGCAATGCCGCGT
    GTGTGAAGAAGGCCTTCGGGTT
    GTAAAGCACTTTTGTCCGGAAA
    GAAAACTTCGAGGTTAATACCC
    TTGGAGGATGACGGTACCGGA
    AGAATAAGCACCGGCTAACTAC
    GTGCCAGCAGCCGCGGTAATA
    CGTAGGGTGCGAGCGTTAATC
    GGAATTACTGGGCGTAAAGCGT
    GCGCAGGCGGTCTGTTAAGAC
    CGATGTGAAATCCCCGGGCTTA
    ACCTGGGAACTGCATTGGTGAC
    TGGCAGGCTTTGAGTGTGGCA
    GAGGGGGGTAGAATTCCACGT
    GTAGCAGTGAAATGCGTAGAGA
    TGTGGAGGAATACCGATGGCG
    AAGGCAGCCCCCTGGGCCAAC
    ACTGACGCTCATGCACGAAAGC
    GTGGGGAGCAAACAGGATTAG
    ATACCCTGGTAGTCCACGCCCT
    AAACGATGTCAACTAGTTGTTG
    GGGATTCATTTCCTTAGTAACG
    TAGCTAACGCGTGAAGTTGACC
    GCCTGGGGAGTACGGTCGCAA
    GATTAAAACTCAAAGGAATTGA
    CGGGGACCCGCACAAGCGGTG
    GATGATGTGGATTAATTCGATG
    CAACGCGAAAAACCTTACCTAC
    CCTTGACATGGTCGGAAGTCTG
    CTGAGAGGTGGACGTGCTCGA
    AAGAGAACCGGCGCACAGGTG
    CTGCATGGCTGTC
    GTCAGCTCGTGTCGTGAGATGT
    TGGGTTAAGTCCCGCAACGAG
    CGCAACCCTTGTCCTTAGTTGC
    TACGCAAGAGCACTCTAAGGAG
    ACTGCCGGTGACAAACCGGAG
    GAAGGTGGGGATGACGTCAAG
    TCCTCATGGCCCTTATGGGTAG
    GGCTTCACACGTCATACAATGG
    TCGGAACAGAGGGTTGCCAAG
    CCGCGAGGTGGAGCCAATCCC
    AGAAAACCGATCGTAGTCCGGA
    TCGCAGTCTGCAACTCGACTGC
    GTGAAGCTGGAATCGCTAGTAA
    TCGCGGATCAGCATGCCGCGG
    TGAATACGTTCCCGGGTCTTGT
    ACACACCGCCCGTCACACCAT
    GGGAGTGGGTTTCACCAGAAG
    TAGGTAGCCTAACCTGCAAAGG
    AGGGCGCTTACCACG
    (SEQ ID NO: 30)
    Snodgrassellaalvi Honeybee (Apis Ileum GAGAGTTTGATCCTGGCTCAGA
    mellifera) and TTGAACGCTGGCGGCATGCCTT
    Bombus spp. ACACATGCAAGTCGAACGGCA
    GCACGGAGAGCTTGCTCTCTG
    GTGGCGAGTGGCGAACGGGTG
    AGTAATGCATCGGAACGTACCG
    AGTAATGGGGGATAACTGTCCG
    AAAGGATGGCTAATACCGCATA
    CGCCCTGAGGGGGAAAGCGGG
    GGATCGAAAGACCTCGCGTTAT
    TTGAGCGGCCGATGTTGGATTA
    GCTAGTTGGTGGGGTAAAGGC
    CTACCAAGGCGACGATCCATAG
    CGGGTCTGAGAGGATGATCCG
    CCACATTGGGACTGAGACACG
    GCCCAAACTCCTACGGGAGGC
    AGCAGTGGGGAATTTTGGACAA
    TGGGGGGAACCCTGATCCAGC
    CATGCCGCGTGTCTGAAGAAG
    GCCTTCGGGTTGTAAAGGACTT
    TTGTTAGGGAAGAAAAGCCGG
    GTGTTAATACCATCTGGTGCTG
    ACGGTACCTAAAGAATAAGCAC
    CGGCTAACTACGTGCCAGCAG
    CCGCGGTAATACGTAGGGTGC
    GAGCGTTAATCGGAATTACTGG
    GCGTAAAGCGAGCGCAGACGG
    TTAATTAAGTCAGATGTGAAATC
    CCCGAGCTCAACTTGGGACGT
    GCATTTGAAACTGGTTAACTAG
    AGTGTGTCAGAGGGAGGTAGA
    ATTCCACGTGTAGCAGTGAAAT
    GCGTAGAGATGTGGAGGAATA
    CCGATGGCGAAGGCAGCCTCC
    TGGGATAACACTGACGTTCATG
    CTCGAAAGCGTGGGTAGCAAA
    CAGGATTAGATACCCTGGTAGT
    CCACGCCCTAAACGATGACAAT
    TAGCTGTTGGGACACTAGATGT
    CTTAGTAGCGAAGCTAACGCGT
    GAAATTGTCCGCCTGGGGAGT
    ACGGTCGCAAGATTAAAACTCA
    AAGGAATTGACGGGGACCCGC
    ACAAGCGGTGGATGATGTGGA
    TTAATTCGATGCAACGCGAAGA
    ACCTTACCTGGTCTTGACATGT
    ACGGAATCTCTTAGAGATAGGA
    GAGTGCCTTCGGGAACCGTAA
    CACAGGTGCTGCATGGCTGTC
    GTCAGCTCGTGTCGTGAGATGT
    TGGGTTAAGTCCCGCAACGAG
    CGCAACCCTTGTCATTAGTTGC
    CATCATTAAGTTGGGCACTCTA
    ATGAGACTGCCGGTGACAAAC
    CGGAGGAAGGTGGGGATGACG
    TCAAGTCCTCATGGCCCTTATG
    ACCAGGGCTTCACACGTCATAC
    AATGGTCGGTACAGAGGGTAG
    CGAAGCCGCGAGGTGAAGCCA
    ATCTCAGAAAGCCGATCGTAGT
    CCGGATTGCACTCTGCAACTCG
    AGTGCATGAAGTCGGAATCGCT
    AGTAATCGCAGGTCAGCATACT
    GCGGTGAATACGTTCCCGGGT
    CTTGTACACACCGCCCGTCACA
    CCATGGGAGTGGGGGATACCA
    GAATTGGGTAGACTAACCGCAA
    GGAGGTCGCTTAACACGGTAT
    GCTTCATGACTGGGGTGAAGTC
    GTAACAAGGTAGCCGTAG
    (SEQ ID NO: 33)
    Gilliamellaapicola honeybee (Apis Ileum TTAAATTGAAGAGTTTGATCATG
    mellifera) and GCTCAGATTGAACGCTGGCGG
    Bombus spp. CAGGCTTAACACATGCAAGTCG
    AACGGTAACATGAGTGCTTGCA
    CTTGATGACGAGTGGCGGACG
    GGTGAGTAAAGTATGGGGATCT
    GCCGAATGGAGGGGGACAACA
    GTTGGAAACGACTGCTAATACC
    GCATAAAGTTGAGAGACCAAAG
    CATGGGACCTTCGGGCCATGC
    GCCATTTGATGAACCCATATGG
    GATTAGCTAGTTGGTAGGGTAA
    TGGCTTACCAAGGCGACGATCT
    CTAGCTGGTCTGAGAGGATGA
    CCAGCCACACTGGAACTGAGA
    CACGGTCCAGACTCCTACGGG
    AGGCAGCAGTGGGGAATATTG
    CACAATGGGGGAAACCCTGAT
    GCAGCCATGCCGCGTGTATGA
    AGAAGGCCTTCGGGTTGTAAAG
    TACTTTCGGTGATGAGGAAGGT
    GGTGTATCTAATAGGTGCATCA
    ATTGACGTTAATTACAGAAGAA
    GCACCGGCTAACTCCGTGCCA
    GCAGCCGCGGTAATACGGAGG
    GTGCGAGCGTTAATCGGAATGA
    CTGGGCGTAAAGGGCATGTAG
    GCGGATAATTAAGTTAGGTGTG
    AAAGCCCTGGGCTCAACCTAG
    GAATTGCACTTAAAACTGGTTA
    ACTAGAGTATTGTAGAGGAAGG
    TAGAATTCCACGTGTAGCGGTG
    AAATGCGTAGAGATGTGGAGG
    AATACCGGTGGCGAAGGCGGC
    CTTCTGGACAGATACTGACGCT
    GAGATGCGAAAGCGTGGGGAG
    CAAACAGGATTAGATACCCTGG
    TAGTCCACGCTGTAAACGATGT
    CGATTTGGAGTTTGTTGCCTAG
    AGTGATGGGCTCCGAAGCTAA
    CGCGATAAATCGACCGCCTGG
    GGAGTACGGCCGCAAGGTTAA
    AACTCAAATGAATTGACGGGGG
    CCCGCACAAGCGGTGGAGCAT
    GTGGTTTAATTCGATGCAACGC
    GAAGAACCTTACCTGGTCTTGA
    CATCCACAGAATCTTGCAGAGA
    TGCGGGAGTGCCTTCGGGAAC
    TGTGAGACAGGTGCTGCATGG
    CTGTCGTCAGCTCGTGTTGTGA
    AATGTTGGGTTAAGTCCCGCAA
    CGAGCGCAACCCTTATCCTTTG
    TTGCCATCGGTTAGGCCGGGA
    ACTCAAAGGAGACTGCCGTTGA
    TAAAGCGGAGGAAGGTGGGGA
    CGACGTCAAGTCATCATGGCCC
    TTACGACCAGGGCTACACACGT
    GCTACAATGGCGTATACAAAGG
    GAGGCGACCTCGCGAGAGCAA
    GCGGACCTCATAAAGTACGTCT
    AAGTCCGGATTGGAGTCTGCAA
    CTCGACTCCATGAAGTCGGAAT
    CGCTAGTAATCGTGAATCAGAA
    TGTCACGGTGAATACGTTCCCG
    GGCCTTGTACACACCGCCCGT
    CACACCATGGGAGTGGGTTGC
    ACCAGAAGTAGATAGCTTAACC
    TTCGGGAGGGCGTTTACCACG
    GTGTGGTCCATGACTGGGGTG
    AAGTCGTAACAAGGTAACCGTA
    GGGGAACCTGCGGTTGGATCA
    CCTCCTTAC
    (SEQ ID NO: 34)
    Bartonellaapis honeybee (Apis Gut AAGCCAAAATCAAATTTTCAACT
    mellifera) TGAGAGTTTGATCCTGGCTCAG
    AACGAACGCTGGCGGCAGGCT
    TAACACATGCAAGTCGAACGCA
    CTTTTCGGAGTGAGTGGCAGAC
    GGGTGAGTAACGCGTGGGAAT
    CTACCTATTTCTACGGAATAAC
    GCAGAGAAATTTGTGCTAATAC
    CGTATACGTCCTTCGGGAGAAA
    GATTTATCGGAGATAGATGAGC
    CCGCGTTGGATTAGCTAGTTGG
    TGAGGTAATGGCCCACCAAGG
    CGACGATCCATAGCTGGTCTGA
    GAGGATGACCAGCCACATTGG
    GACTGAGACACGGCCCAGACT
    CCTACGGGAGGCAGCAGTGGG
    GAATATTGGACAATGGGCGCAA
    GCCTGATCCAGCCATGCCGCG
    TGAGTGATGAAGGCCCTAGGG
    TTGTAAAGCTCTTTCACCGGTG
    AAGATAATGACGGTAACCGGAG
    AAGAAGCCCCGGCTAACTTCGT
    GCCAGCAGCCGCGGTAATACG
    AAGGGGGCTAGCGTTGTTCGG
    ATTTACTGGGCGTAAAGCGCAC
    GTAGGCGGATATTTAAGTCAGG
    GGTGAAATCCCGGGGCTCAAC
    CCCGGAACTGCCTTTGATACTG
    GATATCTTGAGTATGGAAGAGG
    TAAGTGGAATTCCGAGTGTAGA
    GGTGAAATTCGTAGATATTCGG
    AGGAACACCAGTGGCGAAGGC
    GGCTTACTGGTCCATTACTGAC
    GCTGAGGTGCGAAAGCGTGGG
    GAGCAAACAGGATTAGATACCC
    TGGTAGTCCACGCTGTAAACGA
    TGAATGTTAGCCGTTGGACAGT
    TTACTGTTCGGTGGCGCAGCTA
    ACGCATTAAACATTCCGCCTGG
    GGAGTACGGTCGCAAGATTAAA
    ACTCAAAGGAATTGACGGGGG
    CCCGCACAAGCGGTGGAGCAT
    GTGGTTTAATTCGAAGCAACGC
    GCAGAACCTTACCAGCCCTTGA
    CATCCCGATCGCGGATGGTGG
    AGACACCGTCTTTCAGTTCGGC
    TGGATCGGTGACAGGTGCTGC
    ATGGCTGTCGTCAGCTCGTGTC
    GTGAGATGTTGGGTTAAGTCCC
    GCAACGAGCGCAACCCTCGCC
    CTTAGTTGCCATCATTTAGTTG
    GGCACTCTAAGGGGACTGCCG
    GTGATAAGCCGAGAGGAAGGT
    GGGGATGACGTCAAGTCCTCAT
    GGCCCTTACGGGCTGGGCTAC
    ACACGTGCTACAATGGTGGTGA
    CAGTGGGCAGCGAGACCGCGA
    GGTCGAGCTAATCTCCAAAAGC
    CATCTCAGTTCGGATTGCACTC
    TGCAACTCGAGTGCATGAAGTT
    GGAATCGCTAGTAATCGTGGAT
    CAGCATGCCACGGTGAATACGT
    TCCCGGGCCTTGTACACACCG
    CCCGTCACACCATGGGAGTTG
    GTTTTACCCGAAGGTGCTGTGC
    TAACCGCAAGGAGGCAGGCAA
    CCACGGTAGGGTCAGCGACTG
    GGGTGAAGTCGTAACAAGGTA
    GCCGTAGGGGAACCTGCGGCT
    GGATCACCTCCTTTCTAAGGAA
    GATGAAGAATTGGAA
    (SEQ ID NO: 35)
    Parasaccharibacter honeybee (Apis Gut CTACCATGCAAGTCGCACGAAA
    apium mellifera) CCTTTCGGGGTTAGTGGCGGA
    CGGGTGAGTAACGCGTTAGGA
    ACCTATCTGGAGGTGGGGGAT
    AACATCGGGAAACTGGTGCTAA
    TACCGCATGATGCCTGAGGGC
    CAAAGGAGAGATCCGCCATTG
    GAGGGGCCTGCGTTCGATTAG
    CTAGTTGGTTGGGTAAAGGCTG
    ACCAAGGCGATGATCGATAGCT
    GGTTTGAGAGGATGATCAGCCA
    CACTGGGACTGAGACACGGCC
    CAGACTCCTACGGGAGGCAGC
    AGTGGGGAATATTGGACAATGG
    GGGCAACCCTGATCCAGCAAT
    GCCGCGTGTGTGAAGAAGGTC
    TTCGGATTGTAAAGCACTTTCA
    CTAGGGAAGATGATGACGGTA
    CCTAGAGAAGAAGCCCCGGCT
    AACTTCGTGCCAGCAGCCGCG
    GTAATACGAAGGGGGCTAGCG
    TTGCTCGGAATGACTGGGCGTA
    AAGGGCGCGTAGGCTGTTTGTA
    CAGTCAGATGTGAAATCCCCGG
    GCTTAACCTGGGAACTGCATTT
    GATACGTGCAGACTAGAGTCC
    GAGAGAGGGTTGTGGAATTCC
    CAGTGTAGAGGTGAAATTCGTA
    GATATTGGGAAGAACACCGGTT
    GCGAAGGCGGCAACCTGGCTN
    NNNNNNNNNNNNNNNNNNNNN
    NNNNNNNNNNNNNNNNNNNNN
    NNNNNNNNNNNNNNNNNNNNN
    NNNNNNNNNNNNNNNNNNNNN
    NNNNNNNNNNNNNNNNNNNNN
    NNNNNNNNGAGCTAACGCGTT
    AAGCACACCGCCTGGGGAGTA
    CGGCCGCAAGGTTGAAACTCA
    AAGGAATTGACGGGGGCCCGC
    ACAAGCGGTGGAGCATGTGGT
    TTAATTCGAAGCAACGCGCAGA
    ACCTTACCAGGGCTTGCATGGG
    GAGGCTGTATTCAGAGATGGAT
    ATTTCTTCGGACCTCCCGCACA
    GGTGCTGCATGGCTGTCGTCA
    GCTCGTGTCGTGAGATGTTGG
    GTTAAGTCCCGCAACGAGCGC
    AACCCTTGTCTTTAGTTGCCAT
    CACGTCTGGGTGGGCACTCTA
    GAGAGACTGCCGGTGACAAGC
    CGGAGGAAGGTGGGGATGACG
    TCAAGTCCTCATGGCCCTTATG
    TCCTGGGCTACACACGTGCTAC
    AATGGCGGTGACAGAGGGATG
    CTACATGGTGACATGGTGCTGA
    TCTCAAAAAACCGTCTCAGTTC
    GGATTGTACTCTGCAACTCGAG
    TGCATGAAGGTGGAATCGCTAG
    TAATCGCGGATCAGCATGCCG
    CGGTGAATACGTTCCCGGGCC
    TTGTACACACCGCCCGTCACAC
    CATGGGAGTTGGTTTGACCTTA
    AGCCGGTGAGCGAACCGCAAG
    GAACGCAGCCGACCACCGGTT
    CGGGTTCAGCGACTGGGGGA
    (SEQ ID NO: 36)
    Lactobacilluskunkeei honeybee (Apis Gut TTCCTTAGAAAGGAGGTGATCC
    mellifera) AGCCGCAGGTTCTCCTACGGCT
    ACCTTGTTACGACTTCACCCTA
    ATCATCTGTCCCACCTTAGACG
    ACTAGCTCCTAAAAGGTTACCC
    CATCGTCTTTGGGTGTTACAAA
    CTCTCATGGTGTGACGGGCGG
    TGTGTACAAGGCCCGGGAACG
    TATTCACCGTGGCATGCTGATC
    CACGATTACTAGTGATTCCAAC
    TTCATGCAGGCGAGTTGCAGCC
    TGCAATCCGAACTGAGAATGGC
    TTTAAGAGATTAGCTTGACCTC
    GCGGTTTCGCGACTCGTTGTAC
    CATCCATTGTAGCACGTGTGTA
    GCCCAGCTCATAAGGGGCATG
    ATGATTTGACGTCGTCCCCACC
    TTCCTCCGGTTTATCACCGGCA
    GTCTCACTAGAGTGCCCAACTA
    AATGCTGGCAACTAATAATAAG
    GGTTGCGCTCGTTGCGGGACT
    TAACCCAACATCTCACGACACG
    AGCTGACGACAACCATGCACCA
    CCTGTCATTCTGTCCCCGAAGG
    GAACGCCCAATCTCTTGGGTTG
    GCAGAAGATGTCAAGAGCTGG
    TAAGGTTCTTCGCGTAGCATCG
    AATTAAACCACATGCTCCACCA
    CTTGTGCGGGCCCCCGTCAATT
    CCTTTGAGTTTCAACCTTGCGG
    TCGTACTCCCCAGGCGGAATAC
    TTAATGCGTTAGCTGCGGCACT
    GAAGGGCGGAAACCCTCCAAC
    ACCTAGTATTCATCGTTTACGG
    CATGGACTACCAGGGTATCTAA
    TCCTGTTCGCTACCCATGCTTT
    CGAGCCTCAGCGTCAGTAACA
    GACCAGAAAGCCGCCTTCGCC
    ACTGGTGTTCTTCCATATATCTA
    CGCATTTCACCGCTACACATGG
    AGTTCCACTTTCCTCTTCTGTAC
    TCAAGTTTTGTAGTTTCCACTGC
    ACTTCCTCAGTTGAGCTGAGGG
    CTTTCACAGCAGACTTACAAAA
    CCGCCTGCGCTCGCTTTACGC
    CCAATAAATCCGGACAACGCTT
    GCCACCTACGTATTACCGCGGC
    TGCTGGCACGTAGTTAGCCGTG
    GCTTTCTGGTTAAATACCGTCA
    AAGTGTTAACAGTTACTCTAAC
    ACTTGTTCTTCTTTAACAACAGA
    GTTTTACGATCCGAAAACCTTC
    ATCACTCACGCGGCGTTGCTCC
    ATCAGACTTTCGTCCATTGTGG
    AAGATTCCCTACTGCTGCCTCC
    CGTAGGAGTCTGGGCCGTGTC
    TCAGTCCCAATGTGGCCGATTA
    CCCTCTCAGGTCGGCTACGTAT
    CATCGTCTTGGTGGGCTTTTAT
    CTCACCAACTAACTAATACGGC
    GCGGGTCCATCCCAAAGTGATA
    GCAAAGCCATCTTTCAAGTTGG
    AACCATGCGGTTCCAACTAATT
    ATGCGGTATTAGCACTTGTTTC
    CAAATGTTATCCCCCGCTTCGG
    GGCAGGTTACCCACGTGTTACT
    CACCAGTTCGCCACTCGCTCCG
    AATCCAAAAATCATTTATGCAAG
    CATAAAATCAATTTGGGAGAAC
    TCGTTCGACTTGCATGTATTAG
    GCACGCCGCCAGCGTTCGTCC
    TGAGCCAGGATCAAACTCTCAT
    CTTAA
    (SEQ ID NO: 37)
    Lactobacillus Firm-4 honeybee (Apis Gut ACGAACGCTGGCGGCGTGCCT
    mellifera) AATACATGCAAGTCGAGCGCG
    GGAAGTCAGGGAAGCCTTCGG
    GTGGAACTGGTGGAACGAGCG
    GCGGATGGGTGAGTAACACGT
    AGGTAACCTGCCCTAAAGCGG
    GGGATACCATCTGGAAACAGGT
    GCTAATACCGCATAAACCCAGC
    AGTCACATGAGTGCTGGTTGAA
    AGACGGCTTCGGCTGTCACTTT
    AGGATGGACCTGCGGCGTATT
    AGCTAGTTGGTGGAGTAACGGT
    TCACCAAGGCAATGATACGTAG
    CCGACCTGAGAGGGTAATCGG
    CCACATTGGGACTGAGACACG
    GCCCAAACTCCTACGGGAGGC
    AGCAGTAGGGAATCTTCCACAA
    TGGACGCAAGTCTGATGGAGC
    AACGCCGCGTGGATGAAGAAG
    GTCTTCGGATCGTAAAATCCTG
    TTGTTGAAGAAGAACGGTTGTG
    AGAGTAACTGCTCATAACGTGA
    CGGTAATCAACCAGAAAGTCAC
    GGCTAACTACGTGCCAGCAGC
    CGCGGTAATACGTAGGTGGCA
    AGCGTTGTCCGGATTTATTGGG
    CGTAAAGGGAGCGCAGGCGGT
    CTTTTAAGTCTGAATGTGAAAG
    CCCTCAGCTTAACTGAGGAAGA
    GCATCGGAAACTGAGAGACTTG
    AGTGCAGAAGAGGAGAGTGGA
    ACTCCATGTGTAGCGGTGAAAT
    GCGTAGATATATGGAAGAACAC
    CAGTGGCGAAGGCGGCTCTCT
    GGTCTGTTACTGACGCTGAGGC
    TCGAAAGCATGGGTAGCGAAC
    AGGATTAGATACCCTGGTAGTC
    CATGCCGTAAACGATGAGTGCT
    AAGTGTTGGGAGGTTTCCGCCT
    CTCAGTGCTGCAGCTAACGCAT
    TAAGCACTCCGCCTGGGGAGT
    ACGACCGCAAGGTTGAAACTCA
    AAGGAATTGACGGGGGCCCGC
    ACAAGCGGTGGAGCATGTGGT
    TTAATTCGAAGCAACGCGAAGA
    ACCTTACCAGGTCTTGACATCT
    CCTGCAAGCCTAAGAGATTAGG
    GGTTCCCTTCGGGGACAGGAA
    GACAGGTGGTGCATGGTTGTC
    GTCAGCTCGTGTCGTGAGATGT
    TGGGTTAAGTCCCGCAACGAG
    CGCAACCCTTGTTACTAGTTGC
    CAGCATTAAGTTGGGCACTCTA
    GTGAGACTGCCGGTGACAAAC
    CGGAGGAAGGTGGGGACGACG
    TCAAATCATCATGCCCCTTATG
    ACCTGGGCTACACACGTGCTAC
    AATGGATGGTACAATGAGAAGC
    GAACTCGCGAGGGGAAGCTGA
    TCTCTGAAAACCATTCTCAGTTC
    GGATTGCAGGCTGCAACTCGC
    CTGCATGAAGCTGGAATCGCTA
    GTAATCGCGGATCAGCATGCC
    GCGGTGAATACGTTCCCGGGC
    CTTGTACACACCGCCC
    (SEQ ID NO: 38)
    Silk worm
    Enterococcus Bombyxmori Gut AGGTGATCCAGCCGCACCTTCC
    GATACGGCTACCTTGTTACGAC
    TTCACCCCAATCATCTATCCCA
    CCTTAGGCGGCTGGCTCCAAA
    AAGGTTACCTCACCGACTTCGG
    GTGTTACAAACTCTCGTGGTGT
    GACGGGCGGTGTGTACAAGGC
    CCGGGAACGTATTCACCGCGG
    CGTGCTGATCCGCGATTACTAG
    CGATTCCGGCTTCATGCAGGC
    GAGTTGCAGCCTGCAATCCGAA
    CTGAGAGAAGCTTTAAGAGATT
    TGCATGACCTCGCGGTCTAGC
    GACTCGTTGTACTTCCCATTGT
    AGCACGTGTGTAGCCCAGGTC
    ATAAGGGGCATGATGATTTGAC
    GTCATCCCCACCTTCCTCCGGT
    TTGTCACCGGCAGTCTCGCTAG
    AGTGCCCAACTAAATGATGGCA
    ACTAACAATAAGGGTTGCGCTC
    GTTGCGGGACTTAACCCAACAT
    CTCACGACACGAGCTGACGAC
    AACCATGCACCACCTGTCACTT
    TGTCCCCGAAGGGAAAGCTCTA
    TCTCTAGAGTGGTCAAAGGATG
    TCAAGACCTGGTAAGGTTCTTC
    GCGTTGCTTCGAATTAAACCAC
    ATGCTCCACCGCTTGTGCGGG
    CCCCCGTCAATTCCTTTGAGTT
    TCAACCTTGCGGTCGTACTCCC
    CAGGCGGAGTGCTTAATGCGTT
    TGCTGCAGCACTGAAGGGCGG
    AAACCCTCCAACACTTAGCACT
    CATCGTTTACGGCGTGGACTAC
    CAGGGTATCTAATCCTGTTTGC
    TCCCCACGCTTTCGAGCCTCAG
    CGTCAGTTACAGACCAGAGAG
    CCGCCTTCGCCACTGGTGTTCC
    TCCATATATCTACGCATTTCACC
    GCTACACATGGAATTCCACTCT
    CCTCTTCTGCACTCAAGTCTCC
    CAGTTTCCAATGACCCTCCCCG
    GTTGAGCCGGGGGCTTTCACAT
    CAGACTTAAGAAACCGCCTGCG
    CTCGCTTTACGCCCAATAAATC
    CGGACAACGCTTGCCACCTAC
    GTATTACCGCGGCTGCTGGCA
    CGTAGTTAGCCGTGGCTTTCTG
    GTTAGATACCGTCAGGGGACG
    TTCAGTTACTAACGTCCTTGTTC
    TTCTCTAACAACAGAGTTTTACG
    ATCCGAAAACCTTCTTCACTCA
    CGCGGCGTTGCTCGGTCAGAC
    TTTCGTCCATTGCCGAAGATTC
    CCTACTGCTGCCTCCCGTAGGA
    GTCTGGGCCGTGTCTCAGTCC
    CAGTGTGGCCGATCACCCTCTC
    AGGTCGGCTATGCATCGTGGC
    CTTGGTGAGCCGTTACCTCACC
    AACTAGCTAATGCACCGCGGGT
    CCATCCATCAGCGACACCCGAA
    AGCGCCTTTCACTCTTATGCCA
    TGCGGCATAAACTGTTATGCGG
    TATTAGCACCTGTTTCCAAGTG
    TTATCCCCCTCTGATGGGTAGG
    TTACCCACGTGTTACTCACCCG
    TCCGCCACTCCTCTTTCCAATT
    GAGTGCAAGCACTCGGGAGGA
    AAGAAGCGTTCGACTTGCATGT
    ATTAGGCACGCCGCCAGCGTT
    CGTCCTGAGCCAGGATCAAACT
    CT
    (SEQ ID NO: 39)
    Delftia Bombyxmori Gut CAGAAAGGAGGTGATCCAGCC
    GCACCTTCCGATACGGCTACCT
    TGTTACGACTTCACCCCAGTCA
    CGAACCCCGCCGTGGTAAGCG
    CCCTCCTTGCGGTTAGGCTACC
    TACTTCTGGCGAGACCCGCTCC
    CATGGTGTGACGGGCGGTGTG
    TACAAGACCCGGGAACGTATTC
    ACCGCGGCATGCTGATCCGCG
    ATTACTAGCGATTCCGACTTCA
    CGCAGTCGAGTTGCAGACTGC
    GATCCGGACTACGACTGGTTTT
    ATGGGATTAGCTCCCCCTCGCG
    GGTTGGCAACCCTCTGTACCAG
    CCATTGTATGACGTGTGTAGCC
    CCACCTATAAGGGCCATGAGG
    ACTTGACGTCATCCCCACCTTC
    CTCCGGTTTGTCACCGGCAGTC
    TCATTAGAGTGCTCAACTGAAT
    GTAGCAACTAATGACAAGGGTT
    GCGCTCGTTGCGGGACTTAAC
    CCAACATCTCACGACACGAGCT
    GACGACAGCCATGCAGCACCT
    GTGTGCAGGTTCTCTTTCGAGC
    ACGAATCCATCTCTGGAAACTT
    CCTGCCATGTCAAAGGTGGGTA
    AGGTTTTTCGCGTTGCATCGAA
    TTAAACCACATCATCCACCGCT
    TGTGCGGGTCCCCGTCAATTCC
    TTTGAGTTTCAACCTTGCGGCC
    GTACTCCCCAGGCGGTCAACTT
    CACGCGTTAGCTTCGTTACTGA
    GAAAACTAATTCCCAACAACCA
    GTTGACATCGTTTAGGGCGTGG
    ACTACCAGGGTATCTAATCCTG
    TTTGCTCCCCACGCTTTCGTGC
    ATGAGCGTCAGTACAGGTCCA
    GGGGATTGCCTTCGCCATCGG
    TGTTCCTCCGCATATCTACGCA
    TTTCACTGCTACACGCGGAATT
    CCATCCCCCTCTACCGTACTCT
    AGCCATGCAGTCACAAATGCAG
    TTCCCAGGTTGAGCCCGGGGA
    TTTCACATCTGTCTTACATAACC
    GCCTGCGCACGCTTTACGCCC
    AGTAATTCCGATTAACGCTCGC
    ACCCTACGTATTACCGCGGCTG
    CTGGCACGTAGTTAGCCGGTG
    CTTATTCTTACGGTACCGTCAT
    GGGCCCCCTGTATTAGAAGGA
    GCTTTTTCGTTCCGTACAAAAG
    CAGTTTACAACCCGAAGGCCTT
    CATCCTGCACGCGGCATTGCTG
    GATCAGGCTTTCGCCCATTGTC
    CAAAATTCCCCACTGCTGCCTC
    CCGTAGGAGTCTGGGCCGTGT
    CTCAGTCCCAGTGTGGCTGGTC
    GTCCTCTCAGACCAGCTACAGA
    TCGTCGGCTTGGTAAGCTTTTA
    TCCCACCAACTACCTAATCTGC
    CATCGGCCGCTCCAATCGCGC
    GAGGCCCGAAGGGCCCCCGCT
    TTCATCCTCAGATCGTATGCGG
    TATTAGCTACTCTTTCGAGTAGT
    TATCCCCCACGACTGGGCACGT
    TCCGATGTATTACTCACCCGTT
    CGCCACTCGTCAGCGTCCGAA
    GACCTGTTACCGTTCGACTTGC
    ATGTGTAAGGCATGCCGCCAG
    CGTTCAATCTGAGCCAGGATCA
    AACTCTACAGTTCGATCT
    (SEQ ID NO: 40)
    Pelomonas Bombyxmori Gut ATCCTGGCTCAGATTGAACGCT
    GGCGGCATGCCTTACACATGC
    AAGTCGAACGGTAACAGGTTAA
    GCTGACGAGTGGCGAACGGGT
    GAGTAATATATCGGAACGTGCC
    CAGTCGTGGGGGATAACTGCT
    CGAAAGAGCAGCTAATACCGCA
    TACGACCTGAGGGTGAAAGCG
    GGGGATCGCAAGACCTCGCNN
    GATTGGAGCGGCCGATATCAG
    ATTAGGTAGTTGGTGGGGTAAA
    GGCCCACCAAGCCAACGATCT
    GTAGCTGGTCTGAGAGGACGA
    CCAGCCACACTGGGACTGAGA
    CACGGCCCAGACTCCTACGGG
    AGGCAGCAGTGGGGAATTTTG
    GACAATGGGCGCAAGCCTGAT
    CCAGCCATGCCGCGTGCGGGA
    AGAAGGCCTTCGGGTTGTAAAC
    CGCTTTTGTCAGGGAAGAAAAG
    GTTCTGGTTAATACCTGGGACT
    CATGACGGTACCTGAAGAATAA
    GCACCGGCTAACTACGTGCCA
    GCAGCCGCGGTAATACGTAGG
    GTGCAAGCGTTAATCGGAATTA
    CTGGGCGTAAAGCGTGCGCAG
    GCGGTTATGCAAGACAGAGGT
    GAAATCCCCGGGCTCAACCTG
    GGAACTGCCTTTGTGACTGCAT
    AGCTAGAGTACGGTAGAGGGG
    GATGGAATTCCGCGTGTAGCA
    GTGAAATGCGTAGATATGCGGA
    GGAACACCGATGGCGAAGGCA
    ATCCCCTGGACCTGTACTGACG
    CTCATGCACGAAAGCGTGGGG
    AGCAAACAGGATTAGATACCCT
    GGTAGTCCACGCCCTAAACGAT
    GTCAACTGGTTGTTGGGAGGGT
    TTCTTCTCAGTAACGTANNTAAC
    GCGTGAAGTTGACCGCCTGGG
    GAGTACGGCCGCAAGGTTGAA
    ACTCAAAGGAATTGACGGGGA
    CCCGCACAAGCGGTGGATGAT
    GTGGTTTAATTCGATGCAACGC
    GAAAAACCTTACCTACCCTTGA
    CATGCCAGGAATCCTGAAGAGA
    TTTGGGAGTGCTCGAAAGAGAA
    CCTGGACACAGGTGCTGCATG
    GCCGTCGTCAGCTCGTGTCGT
    GAGATGTTGGGTTAAGTCCCGC
    AACGAGCGCAACCCTTGTCATT
    AGTTGCTACGAAAGGGCACTCT
    AATGAGACTGCCGGTGACAAAC
    CGGAGGAAGGTGGGGATGACG
    TCAGGTCATCATGGCCCTTATG
    GGTAGGGCTACACACGTCATAC
    AATGGCCGGGACAGAGGGCTG
    CCAACCCGCGAGGGGGAGCTA
    ATCCCAGAAACCCGGTCGTAGT
    CCGGATCGTAGTCTGCAACTCG
    ACTGCGTGAAGTCGGAATCGCT
    AGTAATCGCGGATCAGCTTGCC
    GCGGTGAATACGTTCCCGGGT
    CTTGTACACACCGCCCGTCACA
    CCATGGGAGCGGGTTCTGCCA
    GAAGTAGTTAGCCTAACCGCAA
    GGAGGGCGATTACCACGGCAG
    GGTTCGTGACTGGGGTGAAGT
    CGTAACAAGGTAGCCGTATCG
    GAAGGTGCGGCTGGATCAC
    (SEQ ID NO: 41)
  • For example, a mosquito (e.g., Aedes spp. or Anopheles spp.) harbors symbiotic bacteria that modulate the mosquito's immune response and influence vectorial competence to pathogens. The modulating agent described herein may be useful in targeting bacteria resident in the mosquito, including, but not limited to, EspZ, Serratia spp (e.g., Serratia marcescens), Enterbacterioaceae spp., Enterobacter spp. (e.g., Enterobacter cloacae, Enterobacter amnigenus, Enterobacter ludwigii), Proteus spp., Acinetobacter spp., Wigglesworthia spp. (Wigglesworthia gloosinidia), Xanthomonas spp. (e.g., Xanthomonas maltophilia), Pseudomonas spp. (e.g., Pseudomonas aeruginosa, Pseudomonas stutzeri, Pseudomonas rhodesiae), Escherichia spp. (e.g., Escherchia coli), Cedecea spp. (e.g., Cedecea lapagei), Ewingella spp. (e.g., Ewingella americana), Bacillus spp. (e.g., Bacillus pumilus), Comamonas spp., or Vagococcus spp. (e.g., Vagococcus salmoninarium), or Wolbachia spp. (e.g., Wolbachia—wMel, Wolbachial—wAlbB, Wolbachia—wMelPop, Wolbachia—wMelPop-CLA).
  • Any number of bacterial species may be targeted by the compositions or methods described herein. For example, in some instances, the modulating agent may target a single bacterial species. In some instances, the modulating agent may target at least about any of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 150, 200, 250, 500, or more distinct bacterial species. In some instances, the modulating agent may target any one of about 1 to about 5, about 5 to about 10, about 10 to about 20, about 20 to about 50, about 50 to about 100, about 100 to about 200, about 200 to about 500, about 10 to about 50, about 5 to about 20, or about 10 to about 100 distinct bacterial species. In some instances, the modulating agent may target at least about any of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, or more phyla, classes, orders, families, or genera of bacteria.
  • In some instances, the modulating agent may increase a population of one or more bacteria (e.g., pathogenic bacteria, toxin-producing bacteria) by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% or more in the host in comparison to a host organism to which the modulating agent has not been administered. In some instances, the modulating agent may reduce the population of one or more bacteria (e.g., symbiotic bacteria, pesticide-degrading bacteria, e.g., a bacterium that degrades any one of the pesticides listed in Table 12) by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or more in the host in comparison to a host organism to which the modulating agent has not been administered. In some instances, the modulating agent may eradicate the population of a bacterium (e.g., symbiotic bacteria, pesticide-degrading bacteria, e.g., a bacterium that degrades any one of the pesticides listed in Table 12) in the host. In some instances, the modulating agent may increase the level of one or more pathogenic bacteria by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% or more in the host and/or decreases the level of one or more symbiotic bacteria by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or more in the host in comparison to a host organism to which the modulating agent has not been administered.
  • In some instances, the modulating agent may alter the bacterial diversity and/or bacterial composition of the host. In some instances, the modulating agent may increase the bacterial diversity in the host relative to a starting diversity by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or more in comparison to a host organism to which the modulating agent has not been administered. In some instances, the modulating agent may decrease the bacterial diversity in the host relative to a starting diversity by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or more in comparison to a host organism to which the modulating agent has not been administered.
  • In some instances, the modulating agent may alter the function, activity, growth, and/or division of one or more bacterial cells. For example, the modulating agent may alter the expression of one or genes in the bacteria. In some instances, the modulating agent may alter the function of one or more proteins in the bacteria. In some instances, the modulating agent may alter the function of one or more cellular structures (e.g., the cell wall, the outer or inner membrane) in the bacteria. In some instances, the modulating agent may kill (e.g., lyse) the bacteria.
  • The target bacterium may reside in one or more parts of the insect. Further, the target bacteria may be intracellular or extracellular. In some instances, the bacteria reside in or on one or more parts of the host gut, including, e.g., the foregut, midgut, and/or hindgut. In some instances, the bacteria reside as an intracellular bacteria within a cell of the host insect. In some instances, the bacteria reside in a bacteriocyte of the host insect.
  • Changes to the populations of bacteria in the host may be determined by any methods known in the art, such as microarray, polymerase chain reaction (PCR), real-time PCR, flow cytometry, fluorescence microscopy, transmission electron microscopy, fluorescence in situ hybridization (e.g., FISH), spectrophotometry, matrix-assisted laser desorption ionization-mass spectrometry (MALDI-MS), and DNA sequencing. In some instances, a sample of the host treated with a modulating agent is sequenced (e.g., by metagenomics sequencing of 16S rRNA or rDNA) to determine the microbiome of the host after delivery or administration of the modulating agent. In some instances, a sample of a host that did not receive the modulating agent is also sequenced to provide a reference.
  • ii. Fungi
  • Exemplary fungi that may be targeted in accordance with the methods and compositions provided herein, include, but are not limited to Amylostereum areolatum, Epichloe spp, Pichia pinus, Hansenula capsulate, Daldinia decipien, Ceratocytis spp, Ophiostoma spp, and Attamyces bromatificus. Non-limiting examples of yeast and yeast-like symbionts found in insects include Candida, Metschnikowia, Debaromyces, Scheffersomyces shehatae and Scheffersomyces stipites, Starmerella, Pichia, Trichosporon, Cryptococcus, Pseudozyma, and yeast-like symbionts from the subphylum Pezizomycotina (e.g., Symbiotaphrina bucneri and Symbiotaphrina kochii). Non-limiting examples of yeast that may be targeted by the methods and compositions herein are listed in Table 2.
  • TABLE 2
    Insect Species Order: Family Yeast Location (Species)
    Stegobium paniceum Coleoptera: Anobiidae Mycetomes
    (=Sitodrepa panicea) (Saccharomyces)
    Cecae (Torulopsis buchnerii)
    Mycetome between foregut and midgut
    Mycetomes (Symbiotaphrina buchnerii)
    Mycetomes and digestive tube
    (Torulopsis buchnerii)
    Gut cecae (Symbiotaphrina buchnerii)
    Lasioderma serricorne Coleoptera: Anobiidae Mycetome between foregut and midgut
    (Symbiotaphrina kochii)
    Ernobius abietis Coleoptera: Anobiidae Mycetomes (Torulopsis karawaiewii)
    (Candida karawaiewii)
    Ernobius mollis Coleoptera: Anobiidae Mycetomes (Torulopsis ernobii)
    (Candida ernobii)
    Hemicoelus gibbicollis Coleoptera: Anobiidae Larval mycetomes
    Xestobium plumbeum Coleoptera: Anobiidae Mycetomes (Torulopsis xestobii)
    (Candida xestobii)
    Criocephalus rusticus Coleoptera: Cerambycidae Mycetomes
    Phoracantha Coleoptera: Cerambycidae Alimentary canal (Candida
    semipunctata guilliermondii, C. tenuis)
    Cecae around midgut (Candida
    guilliermondii)
    Harpium inquisitor Coleoptera: Cerambycidae Mycetomes (Candida rhagii)
    Harpium mordax Coleoptera: Cerambycidae Cecae around midgut (Candida tenuis)
    H. sycophanta
    Gaurotes virginea Coleoptera: Cerambycidae Cecae around midgut (Candida rhagii)
    Leptura rubra Coleoptera: Cerambycidae Cecae around midgut (Candida tenuis)
    Cecae around midgut (Candida
    parapsilosis)
    Leptura maculicornis Coleoptera: Cerambycidae Cecae around midgut (Candida
    parapsilosis)
    L. cerambyciformis
    Leptura sanguinolenta Coleoptera: Cerambycidae Cecae around midgut (Candida sp.)
    Rhagium bifasciatum Coleoptera: Cerambycidae Cecae around midgut (Candida tenuis)
    Rhagium inquisitor Coleoptera: Cerambycidae Cecae around midgut (Candida
    guilliermondii)
    Rhagium mordax Coleoptera: Cerambycidae Cecae around midgut (Candida)
    Carpophilus Coleoptera: Nitidulidae Intestinal tract (10 yeast species)
    hemipterus
    Odontotaenius Coleoptera: Passalidae Hindgut (Enteroramus dimorphus)
    disjunctus
    Odontotaenius Coleoptera: Passalidae Gut (Pichia stipitis, P. segobiensis,
    disjunctus Candida shehatae)
    Verres sternbergianus (C. ergatensis)
    Scarabaeus Coleoptera: Scarabaeidae Digestive tract (10 yeast species)
    semipunctatus
    Chironitis furcifer
    Unknown species Coleoptera: Scarabaeidae Guts (Trichosporon cutaneum)
    Dendroctonus and lps Coleoptera: Scolytidae Alimentary canal (13 yeast species)
    spp.
    Dendroctonus frontalis Coleoptera: Scolytidae Midgut (Candida sp.)
    lps sexdentatus Coleoptera: Scolytidae Digestive tract (Pichia bovis, P. rhodanensis)
    Hansenula holstii (Candida rhagii)
    Digestive tract
    (Candida pulcherina)
    lps typographus Coleoptera: Scolytidae Alimentary canal
    Alimentary tracts (Hansenula capsulata,
    Candida parapsilosis)
    Guts and beetle homogenates
    (Hansenula holstii, H. capsulata,
    Candida diddensii, C. mohschtana, C. nitratophila,
    Cryptococcus albidus, C. laurentii)
    Trypodendron Coleoptera: Scolytidae Not specified
    lineatum
    Xyloterinus politus Coleoptera: Scolytidae Head, thorax, abdomen (Candida,
    Pichia, Saccharomycopsis)
    Periplaneta americana Dictyoptera: Blattidae Hemocoel (Candida sp. nov.)
    Blatta orientalis Dictyoptera: Blattidae Intestinal tract (Kluyveromyces blattae)
    Blatella germanica Dictyoptera: Blattellidae Hemocoel
    Cryptocercus Dictyoptera: Cryptocercidae Hindgut (1 yeast species)
    punctulatus
    Philophylla heraclei Diptera: Tephritidae Hemocoel
    Aedes (4 species) Diptera: Culicidae Internal microflora (9 yeast genera)
    Drosophila Diptera: Drosophilidae Alimentary canal (24 yeast species)
    pseudoobscura
    Drosophila (5 spp.) Diptera: Drosophilidae Crop (42 yeast species)
    Drosophila Diptera: Drosophilidae Crop (8 yeast species)
    melanogaster
    Drosophila (4 spp.) Diptera: Drosophilidae Crop (7 yeast species)
    Drosophila (6 spp.) Diptera: Drosophilidae Larval gut (17 yeast species)
    Drosophila (20 spp.) Diptera: Drosophilidae Crop (20 yeast species)
    Drosophila (8 species Diptera: Drosophilidae Crop (Kloeckera, Candida,
    groups) Kluyveromyces)
    Drosophila serido Diptera: Drosophilidae Crop (18 yeast species)
    Drosophila (6 spp.) Diptera: Drosophilidae Intestinal epithelium (Coccidiascus
    legeri)
    Protaxymia Diptera Unknown (Candida, Cryptococcus,
    melanoptera Sporoblomyces)
    Astegopteryx styraci Homoptera: Aphididae Hemocoel and fat body
    Tuberaphis sp. Homoptera: Aphididae Tissue sections
    Hamiltonaphis styraci
    Glyphinaphis
    bambusae
    Cerataphis sp.
    Hamiltonaphis styraci Homoptera: Aphididae Abdominal hemocoel
    Cofana unimaculata Homoptera: Cicadellidae Fat body
    Leofa unicolor Homoptera: Cicadellidae Fat body
    Lecaniines, etc. Homoptera: Coccoidea d Hemolymph, fatty tissue, etc.
    Lecanium sp. Homoptera: Coccidae Hemolymph, adipose tissue
    Ceroplastes (4 sp.) Homoptera: Coccidae Blood smears
    Laodelphax striatellus Homoptera: Delphacidae Fat body
    Eggs
    Eggs (Candida)
    Nilaparvata lugens Homoptera: Delphacidae Fat body
    Eggs (2 unidentified yeast species)
    Eggs, nymphs (Candida)
    Eggs (7 unidentified yeast species)
    Eggs (Candida)
    Nisia nervosa Homoptera: Delphacidae Fat body
    Nisia grandiceps
    Perkinsiella spp.
    Sardia rostrata
    Sogatella furcifera
    Sogatodes orizicola Homoptera: Delphacidae Fat body
    Amrasca devastans Homoptera: Jassidae Eggs, mycetomes, hemolymph
    Tachardina lobata Homoptera: Kerriidae Blood smears (Torulopsis)
    Laccifer (=Lakshadia) Homoptera: Kerriidae Blood smears (Torula variabilis)
    sp.
    Comperia merceti Hymenoptera: Encyrtidae Hemolymph, gut, poison gland
    Solenopsis invicta Hymenoptera: Formicidae Hemolymph (Myrmecomyces
    annellisae)
    S. quinquecuspis
    Solenopsis invicta Hymenoptera: Formicidae Fourth instar larvae (Candida
    parapsilosis, Yarrowia lipolytica)
    Gut and hemolymph (Candida
    parapsilosis, C. lipolytica, C. guillermondii,
    C. rugosa, Debaryomyces
    hansenii)
    Apis mellifera Hymenoptera: Apidae Digestive tracts (Torulopsis sp.)
    Intestinal tract (Torulopsis apicola)
    Digestive tracts (8 yeast species)
    Intestinal contents (12 yeast species)
    Intestinal contents (7 yeast species)
    Intestines (14 yeast species)
    Intestinal tract (Pichia melissophila)
    Intestinal tracts (7 yeast species)
    Alimentary canal (Hansenula silvicola)
    Crop and gut (13 yeast species)
    Apis mellifera Hymenoptera: Apidae Midguts (9 yeast genera)
    Anthophora Hymenoptera:Anthophoridae
    occidentalis
    Nomia melanderi Hymenoptera:Halictidae
    Halictus rubicundus Hymenoptera:Halictidae
    Megachile rotundata Hymenoptera:Megachilidae
  • Any number of fungal species may be targeted by the compositions or methods described herein. For example, in some instances, the modulating agent may target a single fungal species. In some instances, the modulating agent may target at least about any of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 150, 200, 250, 500, or more distinct fungal species. In some instances, the modulating agent may target any one of about 1 to about 5, about 5 to about 10, about 10 to about 20, about 20 to about 50, about 50 to about 100, about 100 to about 200, about 200 to about 500, about 10 to about 50, about 5 to about 20, or about 10 to about 100 distinct fungal species. In some instances, the modulating agent may target at least about any of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, or more phyla, classes, orders, families, or genera of fungi.
  • In some instances, the modulating agent may increase a population of one or more fungi (e.g., pathogenic or parasitic fungi) by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% or more in the host in comparison to a host organism to which the modulating agent has not been administered. In some instances, the modulating agent may reduce the population of one or more fungi (e.g., symbiotic fungi) by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% or more in the host in comparison to a host organism to which the modulating agent has not been administered.
  • In some instances, the modulating agent may eradicate the population of a fungi (e.g., symbiotic fungi) in the host. In some instances, the modulating agent may increase the level of one or more symbiotic fungi by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% or more in the host and/or may decrease the level of one or more symbiotic fungi by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% or more in the host in comparison to a host organism to which the modulating agent has not been administered.
  • In some instances, the modulating agent may alter the fungal diversity and/or fungal composition of the host. In some instances, the modulating agent may increase the fungal diversity in the host relative to a starting diversity by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or more in comparison to a host organism to which the modulating agent has not been administered. In some instances, the modulating agent may decrease the fungal diversity in the host relative to a starting diversity by at least about any of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or more in comparison to a host organism to which the modulating agent has not been administered.
  • In some instances, the modulating agent may alter the function, activity, growth, and/or division of one or more fungi. For example, the modulating agent may alter the expression of one or more genes in the fungus. In some instances, the modulating agent may alter the function of one or more proteins in the fungus. In some instances, the modulating agent may alter the function of one or more cellular components in the fungus. In some instances, the modulating agent may kill the fungus.
  • Further, the target fungus may reside in one or more parts of the insect. In some instances, the fungus resides in or on one or more parts of the insect gut, including, e.g., the foregut, midgut, and/or hindgut. In some instances, the fungus lives extracellularly in the hemolymph, fat bodies or in specialized structures in the host.
  • Changes to the population of fungi in the host may be determined by any methods known in the art, such as microarray, polymerase chain reaction (PCR), real-time PCR, flow cytometry, fluorescence microscopy, transmission electron microscopy, fluorescence in situ hybridization (e.g., FISH), spectrophotometry, matrix-assisted laser desorption ionization-mass spectrometry (MALDI-MS), and DNA sequencing. In some instances, a sample of the host treated with a modulating agent is sequenced (e.g., by metagenomics sequencing) to determine the microbiome of the host after delivery or administration of the modulating agent. In some instances, a sample of a host that did not receive the modulating agent is also sequenced to provide a reference.
  • III. Modulating Agents
  • The modulating agent of the methods and compositions provided herein may include a phage, a polypeptide, a small molecule, an antibiotic, a secondary metabolite, a bacterium, a fungus, or any combination thereof.
  • i. Phage
  • The modulating agent described herein may include a phage (e.g., a lytic phage or a non-lytic phage). In some instances, an effective concentration of any phage described herein may alter a level, activity, or metabolism of one or more microorganisms (as described herein) resident in a host described herein (e.g., a vector of an animal pathogen, e.g., a mosquito, a mite, a biting louse, or a tick), the modulation resulting in a decrease in the host's fitness (e.g., as outlined herein). In some instances, the modulating agent includes at least one phage selected from the order Tectiviridae, Myoviridae, Siphoviridae, Podoviridae, Caudovirales, Lipothrixviridae, Rudiviridae, or Ligamenvirales. In some instances, the composition includes at least one phage selected from the family Myoviridae, Siphoviridae, Podoviridae, Lipothrixviridae, Rudiviridae, Ampullaviridae, Bicaudaviridae, Clavaviridae, Corticoviridae, Cystoviridae, Fuselloviridae, Gluboloviridae, Guttaviridae, Inoviridae, Leviviridae, Microviridae, Plasmaviridae, and Tectiviridae. Further non-limiting examples of phages useful in the methods and compositions are listed in Table 3.
  • TABLE 3
    Examples of Phage and Targeted Bacteria
    Phage and Accession # Target bacteria Target host
    SA1(NC_027991), phiP68 Staphylococcus Apidae family
    (NC_004679) sp.
    WO (AB036666.1) Wolbachia sp. Aedes aegypt; Drosophila
    melanogaster;
    Plasmodium sp;
    Teleogryllus taiwanemma;
    Bombyx mori
    KL1 (NC_018278), BcepNazgul Burkholderia sp. Riptortus sp.; Pyrrhocoris
    (NC_005091) PhiE125 (NC_003309) apterus.
    Fern (NC_028851), Xenia Paenibacillus bumble bees: Bombus
    (NC_028837), HB10c2 (NC_028758) larvae sp.; honey bees: A. mellifera
    CP2 (NC_020205), XP10 (NC_004902), Xanthomonas Plebeina denoiti; Apidae
    XP15 (NC_007024), phiL7 sp. family; Apis mellifera;
    (NC_012742) Drosphilidae family; and
    Chloropidae family
    PP1 (NC_019542), PM1 (NC_023865) Pectobacterium Apidae family
    carotovorum
    subsp.
    carotovorum
    ΦRSA1 (NC_009382), Ralstonia Bombyx mori
    ΦRSB1 (NC_011201), ΦRSL1 solanacearum
    (NC_010811), RSM1 (NC_008574)
    SF1(NC_028807) Streptomyces Philantus sp.; Trachypus
    scabies sp
    ECML-4 (NC_025446), ECML-117 Escherichia coli Apidae family;
    (NC_025441), ECML-134 (NC_025449) Varroa destructor
    SSP5(JX274646.1), SSP6 Salmonella sp. Drosphilidae family
    (NC_004831), SFP10 (NC_016073),
    F18SE (NC_028698)
    γ (NC_001416), Bcp1 (NC_024137) Bacillus sp. Gypsy moth; Lymantria
    dispar; Varroa destructor
    Phi1 (NC_009821) Enterococcus Schistocerca gragaria
    sp.
    ΦKMV (NC_005045), Pseudomonas Lymantria dispar; Apidae
    ΦEL(AJ697969.1), ΦKZ (NC_004629) sp. family
    A2 (NC_004112), phig1e (NC_004305) Lactobacilli sp. Apidae family; Drosophila
    family; Varroa destructor
    KLPN1 (NC_028760) Klebsiella sp C. capitata
    vB_AbaM_Acibel004 (NC_025462), Acinetobacter Schistocerca gragaria
    vB_AbaP_Acibel007 (NC_025457) sp.
  • In some instances, a modulating agent includes a lytic phage. Thus, after delivery of the lytic phage to a bacterial cell resident in the host, the phage causes lysis in the target bacterial cell. In some instances, the lytic phage targets and kills a bacterium resident in a host insect to decrease the fitness of the host. Alternatively or additionally, the phage of the modulating agent may be a non-lytic phage (also referred to as lysogenic or temperate phage). Thus, after delivery of the non-lytic phage to a bacterial cell resident in the host, the bacterial cell may remain viable and able to stably maintain expression of genes encoded in the phage genome. In some instances, a non-lytic phage is used to alter gene expression in a bacterium resident in a host insect to decrease the fitness of the host. In some instances, the modulating agent includes a mixture of lytic and non-lytic phage.
  • In certain instances, the phage is a naturally occurring phage. For example, a naturally occurring phage may be isolated from an environmental sample containing a mixture of different phages. The naturally occurring phage may be isolated using methods known in the art to isolate, purify, and identify phage that target a particular microorganism (e.g., a bacterial endosymbiont in an insect host). Alternatively, in certain instances, the phage may be engineered based on a naturally occurring phage.
  • The modulating agent described herein may include phage with either a narrow or broad bacterial target range. In some instances, the phage has a narrow bacterial target range. In some instances, the phage is a promiscuous phage with a large bacterial target range. For example, the promiscuous phage may target at least about any of 5, 10, 20, 30, 40, 50, or more bacterium resident in the host. A phage with a narrow bacterial target range may target a specific bacterial strain in the host without affecting another, e.g., non-targeted, bacterium in the host. For example, the phage may target no more than about any of 50, 40, 30, 20, 10, 8, 6, 4, 2, or 1 bacterium resident in the host. For example, the phage described herein may be useful in targeting one or more bacteria resident in the mosquito, including, but not limited to, EspZ, Serratia spp (e.g., Serratia marcescens), Enterbacterioaceae spp., Enterobacter spp. (e.g., Enterobacter cloacae, Enterobacter amnigenus, Enterobacter ludwigii), Proteus spp., Acinetobacter spp., Wigglesworthia spp. (Wigglesworthia gloosinidia), Xanthomonas spp. (e.g., Xanthomonas maltophilia), Pseudomonas spp. (e.g., Pseudomonas aeruginosa, Pseudomonas stutzeri, Pseudomonas rhodesiae), Escherichia spp. (e.g., Escherchia coli), Cedecea spp. (e.g., Cedecea lapagel), Ewingella spp. (e.g., Ewingella americana), Bacillus spp. (e.g., Bacillus pumilus), Comamonas spp., or Vagococcus spp. (e.g., Vagococcus salmoninarium), or Wolbachia spp. (e.g., Wolbachia—wMel, Wolbachia—wAlbB, Wolbachia—wMelPop, Wolbachia—wMelPop-CLA).
  • The compositions described herein may include any number of phage, such as at least about any one of 1, 2, 3, 4, 5, 10, 15, 20, 30, 40, 50, 100, or more phage. In some instances, the composition includes phage from one or more (e.g., 2, 3, 4, 5, 6, 7, 8, 9, 10, or more phage) families, one or more orders (e.g., 2, 3, 4, 5, 6, 7, 8, 9, 10, or more phage), or one or more species (e.g., 1, 2, 3, 4, 5, 10, 15, 20, 30, 40, 50, 100, or more phage). Compositions including one or more phage are also referred herein as “phage cocktails.” Phage cocktails are useful because they allow for targeting of a wider host range of bacteria. Furthermore, they allow for each bacterial strain (i.e. subspecies) to be targeted by multiple orthogonal phages, thereby preventing or significantly delaying the onset of resistance. In some instances, a cocktail includes multiple phages targeting one bacterial species. In some instances, a cocktail includes multiple phages targeting multiple bacterial species. In some instances, a one-phage “cocktail” includes a single promiscuous phage (i.e. a phage with a large host range) targeting many strains within a species.
  • Suitable concentrations of the phage in the modulating agent described herein depends on factors such as efficacy, survival rate, transmissibility of the phage, number of distinct phage, and/or lysin types in the compositions, formulation, and methods of application of the composition. In some instances, the phage is in a liquid or a solid formulation. In some instances, the concentration of each phage in any of the compositions described herein is at least about any of 102, 103, 104, 105, 106, 107, 108, 109, 1010 or more pfu/ml. In some instances, the concentration of each phage in any of the compositions described herein is no more than about any of 102, 103, 104, 105, 106, 107, 108, 109 pfu/ml. In some instances, the concentration of each phage in the composition is any of about 102 to about 103, about 103 to about 104, about 104 to about 105, about 105 to about 106, about 107 to about 108, about 108 to about 109, about 102 to about 104, about 104 to about 106, about 106 to about 109, or about 103 to about 108 pfu/ml. In some instances, wherein the composition includes at least two types of phages, the concentration of each type of the phages may be the same or different. For example, in some instances, the concentration of one phage in the cocktail is about 108 pfu/ml and the concentration of a second phage in the cocktail is about 106 pfu/ml.
  • A modulating agent including a phage as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of phage concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of phage concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of phage concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • As illustrated by Examples 5-7 and 28, phages (e.g., one or more naturally occurring phage) can be used as modulating agents that target an endosymbiotic bacterium in an insect host to decrease the fitness of the host (e.g., as outlined herein).
  • ii. Polypeptides
  • Numerous polypeptides (e.g., a bacteriocin, R-type bacteriocin, nodule C-rich peptide, antimicrobial peptide, lysin, or bacteriocyte regulatory peptide) may be used in the compositions and methods described herein. In some instances, an effective concentration of any peptide or polypeptide described herein may alter a level, activity, or metabolism of one or more microorganisms (as described herein, e.g., a Wolbachia spp. or a Rickettsia spp.) resident in a host (e.g., a vector of an animal pathogen, e.g., a mosquito, mite, biting louse, or tick), the modulation resulting in a decrease in the host's fitness (e.g., as outlined herein). Polypeptides included herein may include naturally occurring polypeptides or recombinantly produced variants. For example, the polypeptide may be a functionally active variant of any of the polypeptides described herein with at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a polypeptide described herein or a naturally occurring polypeptide.
  • A modulating agent comprising a polypeptide as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • The polypeptide modulating agents discussed hereinafter, namely bacteriocins, lysins, antimicrobial peptides, nodule C-rich peptides, and bacteriocyte regulatory peptides, can be used to alter the level, activity, or metabolism of target microorganisms (e.g., Rickettsia or Wolbochia) as indicated in the section for decreasing the fitness of host insects (e.g., a vector of an animal pathogen, e.g., a mosquito, a mite, a biting louse, or a tick).
  • (a) Bacteriocins
  • The modulating agent described herein may include a bacteriocin. In some instances, the bacteriocin is naturally produced by Gram-positive bacteria, such as Pseudomonas, Streptomyces, Bacillus, Staphylococcus, or lactic acid bacteria (LAB, such as Lactococcus lactis). In some instances, the bacteriocin is naturally produced by Gram-negative bacteria, such as Hafnia alvei, Citrobacter freundii, Klebsiella oxytoca, Klebsiella pneumonia, Enterobacter cloacae, Serratia plymithicum, Xanthomonas campestris, Erwinia carotovora, Ralstonia solanacearum, or Escherichia coli. Exemplary bacteriocins include, but are not limited to, Class I-IV LAB antibiotics (such as lantibiotics), colicins, microcins, and pyocins. Non-limiting examples of bacteriocins are listed in Table 4.
  • TABLE 4
    Examples of Bacteriocins
    Class Name Producer Targets Sequence
    Class I Nisin Lactococcus Active on Gram- ITSISLCTPGCKT
    lactis positive bacteria: GALMGCNMKTA
    Enterococcus, TCHCSIHVSK
    Lactobacillus, (SEQ ID NO: 42)
    Lactococcus,
    Leuconostoc,
    Listeria,
    Clostridium
    Epidermin Staphylococcus Gram-positive bacteria IASKFICTPGCA
    epidermis KTGSFNSYCC
    (SEQ ID NO: 43)
    Class II
    Class II a Pediocin PA-1 Pediococcus Pediococci, KYYGNGVTCG
    acidilactici Lactobacilli, KHSCSVDWGK
    Leuconostoc, ATTCIINNGAMA
    Brochothrix WATGGHQGNH
    thermosphacta, KC
    Propionibacteria, (SEQ ID NO: 44)
    Bacilli,
    Enterococci,
    Staphylococci,
    Listeriaclostridia,
    Listeria
    monocytogenes,
    Listeriainnocua
    Class II b Enterocin P Enterococcus Lactobacillussakei, ATRSYGNGVYC
    faecium Enterococcusfaecium NNSKCWVNWG
    EAKENIAGIVISG
    WASGLAGMGH
    (SEQ ID NO: 45)
    Class II c Lactococcin G Streptococcus Gram-positive bacteria GTWDDIGQGIG
    lactis RVAYWVGKAM
    GNMSDVNQAS
    RINRKKKH
    (SEQ ID NO: 46)
    Class II d Lactacin-F Lactobacillus Lactobacilli, NRWGDTVLSAA
    johnsonii Enterococcusfaecalis SGAGTGIKACK
    SFGPWGMAICG
    VGGAAIGGYFG
    YTHN
    (SEQ ID NO: 47)
    Class III
    Class III a Enterocin AS- Enterococcus Broad spectrum: Gram MAKEFGIPAAVA
    48 faecalis positive and Gram GTVLNVVEAGG
    negative bacteria. WVTTIVSILTAV
    GSGGLSLLAAA
    GRESIKAYLKKE
    IKKKGKRAVIAW
    (SEQ ID NO: 48)
    Class III b aureocin A70 Staphylococcus Broad spectrum: Gram MSWLNFLKYIAK
    aureus positive and Gram YGKKAVSAAWK
    negative bacteria. YKGKVLEWLNV
    GPTLEWVWQKL
    KKIAGL
    (SEQ ID NO: 49)
    Class IV Garvicin A Lactococcus Broad spectrum: Gram IGGALGNALNGL
    garvieae positive and Gram GTWANMMNGG
    negative bacteria. GFVNQWQVYA
    NKGKINQYRPY
    (SEQ ID NO: 50)
    Unclassified Colicin V Escherichiacoli Active against MRTLTLNELDS
    Escherichiacoli (also VSGGASGRDIA
    closely related MAIGTLSGQFV
    bacteria), AGGIGAAAGGV
    Enterobacteriaceae AGGAIYDYAST
    HKPNPAMSPSG
    LGGTIKQKPEGI
    PSEAWNYAAGR
    LCNWSPNNLSD
    VCL
    (SEQ ID NO: 51)
  • In some instances, the bacteriocin is a colicin, a pyocin, or a microcin produced by Gram-negative bacteria. In some instances, the bacteriocin is a colicin. The colicin may be a group A colicin (e.g., uses the Tol system to penetrate the outer membrane of a target bacterium) or a group B colicin (e.g., uses the Ton system to penetrate the outer membrane of a target bacterium). In some instances, the bacteriocin is a microcin. The microcin may be a class I microcin (e.g., <5 kDa, has post-translational modifications) or a class II microcin (e.g., 5-10 kDa, with or without post-translational modifications). In some instances, the class II microcin is a class IIa microcin (e.g., requires more than one genes to synthesize and assemble functional peptides) or a class IIb microcin (e.g., linear peptides with or without post-translational modifications at C-terminus). In some instances, the bacteriocin is a pyocin. In some instances, the pyocin is an R-pyocin, F-pyocin, or S-pyocin.
  • In some instances, the bacteriocin is a class I, class II, class III, or class IV bacteriocin produced by Gram-positive bacteria. In some instances, the modulating agent includes a Class I bacteriocin (e.g., lanthionine-containing antibiotics (lantibiotics) produced by a Gram-positive bacteria). The class I bacteriocins or lantibiotic may be a low molecular weight peptide (e.g., less than about 5 kDa) and may possess post-translationally modified amino acid residues (e.g., lanthionine, β-methyllanthionine, or dehydrated amino acids).
  • In some instances, the bacteriocin is a Class II bacteriocin (e.g., non-lantibiotics produced by Gram-positive bacteria). Many are positively charged, non-lanthionine-containing peptides, which unlike lantibiotics, do not undergo extensive post-translational modification. The Class II bacteriocin may belong to one of the following subclasses: “pediocin-like” bacteriocins (e.g., pediocin PA-1 and carnobacteriocin X (Class IIa)); two-peptide bacteriocins (e.g., lactacin F and ABP-118 (Class IIb)); circular bacteriocins (e.g., carnocyclin A and enterocin AS-48 (Class 11c)); or unmodified, linear, non-pediocin-like bacteriocins (e.g., epidermicin N101 and lactococcin A (Class IId)).
  • In some instances, the bacteriocin is a Class III bacteriocin (e.g., produced by Gram-positive bacteria). Class III bacteriocins may have a molecular weight greater than 10 kDa and may be heat unstable proteins. The Class III bacteriocins can be further subdivided into Group IIIA and Group IIIB bacteriocins. The Group IIIA bacteriocins include bacteriolytic enzymes which kill sensitive strains by lysis of the cell well, such as Enterolisin A. Group IIIB bacteriocins include non-lytic proteins, such as Caseicin 80, Helveticin J, and lactacin B.
  • In some instances, the bacteriocin is a Class IV bacteriocin (e.g., produced by Gram-positive bacteria). Class IV bacteriocins are a group of complex proteins, associated with other lipid or carbohydrate moieties, which appear to be required for activity. They are relatively hydrophobic and heat stable. Examples of Class IV bacteriocins leuconocin S, lactocin 27, and lactocin S.
  • In some instances, the bacteriocin is an R-type bacteriocin. R-type bacteriocins are contractile bacteriocidal protein complexes. Some R-type bacteriocins have a contractile phage-tail-like structure. The C-terminal region of the phage tail fiber protein determines target-binding specificity. They may attach to target cells through a receptor-binding protein, e.g., a tail fiber. Attachment is followed by sheath contraction and insertion of the core through the envelope of the target bacterium. The core penetration results in a rapid depolarization of the cell membrane potential and prompt cell death. Contact with a single R-type bacteriocin particle can result in cell death. An R-type bacteriocin, for example, may be thermolabile, mild acid resistant, trypsin resistant, sedimentable by centrifugation, resolvable by electron microscopy, or a combination thereof. Other R-type bacteriocins may be complex molecules including multiple proteins, polypeptides, or subunits, and may resemble a tail structure of bacteriophages of the myoviridae family. In naturally occurring R-type bacteriocins, the subunit structures may be encoded by a bacterial genome, such as that of C. difficile or P. aeruginosa and form R-type bacteriocins to serve as natural defenses against other bacteria. In some instances, the R-type bacteriocin is a pyocin. In some instances, the pyocin is an R-pyocin, F-pyocin, or S-pyocin.
  • In some instances, the bacteriocin is a functionally active variant of the bacteriocins described herein. In some instances, the variant of the bacteriocin has at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a bacteriocin described herein or a naturally occurring bacteriocin.
  • In some instances, the bacteriocin may be bioengineered, according to standard methods, to modulate their bioactivity, e.g., increase or decrease or regulate, or to specify their target microorganisms. In other instances, the bacteriocin is produced by the translational machinery (e.g. a ribosome, etc.) of a microbial cell. In some instances, the bacteriocin is chemically synthesized. Some bacteriocins can be derived from a polypeptide precursor. The polypeptide precursor can undergo cleavage (e.g., processing by a protease) to yield the polypeptide of the bacteriocin itself. As such, in some instances, the bacteriocin is produced from a precursor polypeptide. In some other instances, the bacteriocin includes a polypeptide that has undergone post-translational modifications, for example, cleavage, or the addition of one or more functional groups.
  • The bacteriocins described herein may be formulated in a composition for any of the uses described herein. The compositions disclosed herein may include any number or type (e.g., classes) of bacteriocins, such as at least about any one of 1 bacteriocin, 2, 3, 4, 5, 10, 15, 20, 30, 40, 50, 100, or more bacteriocins. Suitable concentrations of each bacteriocin in the compositions described herein depends on factors such as efficacy, stability of the bacteriocin, number of distinct bacteriocin types in the compositions, formulation, and methods of application of the composition. In some instances, each bacteriocin in a liquid composition is from about 0.01 ng/ml to about 100 mg/mL. In some instances, each bacteriocin in a solid composition is from about 0.01 ng/g to about 100 mg/g. In some instances, wherein the composition includes at least two types of bacteriocins, the concentration of each type of the bacteriocins may be the same or different. In some instances, the bacteriocin is provided in a composition including a bacterial cell that secretes the bacteriocin. In some instances, the bacteriocin is provided in a composition including a polypeptide (e.g., a polypeptide isolated from a bacterial cell).
  • Bacteriocins may neutralize (e.g., kill) at least one microorganism other than the individual bacterial cell in which the polypeptide is made, including cells clonally related to the bacterial cell and other microbial cells. As such, a bacterial cell may exert cytotoxic or growth-inhibiting effects on a plurality of microbial organisms by secreting bacteriocins. In some instances, the bacteriocin targets and kills one or more species of bacteria resident in the host via cytoplasmic membrane pore formation, cell wall interference (e.g., peptidoglycanase activity), or nuclease activity (e.g., DNase activity, 16S rRNase activity, or tRNase activity).
  • In some instances, the bacteriocin has a neutralizing activity. Neutralizing activity of bacteriocins may include, but is not limited to, arrest of microbial reproduction, or cytotoxicity. Some bacteriocins have cytotoxic activity, and thus can kill microbial organisms, for example bacteria, yeast, algae, and the like. Some bacteriocins can inhibit the reproduction of microbial organisms, for example bacteria, yeast, algae, and the like, for example by arresting the cell cycle.
  • In some instances, the bacteriocin has killing activity. The killing mechanism of bacteriocins is specific to each group of bacteriocins. In some instances, the bacteriocin has narrow-spectrum bioactivity. Bacteriocins are known for their very high potency against their target strains. Some bacteriocin activity is limited to strains that are closely related to the bacteriocin producer strain (narrow-spectrum bioactivity). In some instances, the bacteriocin has broad-spectrum bioactivity against a wide range of genera.
  • In some instances, bacteriocins interact with a receptor molecule or a docking molecule on the target bacterial cell membrane. For example, nisin is extremely potent against its target bacterial strains, showing antimicrobial activity even at a single-digit nanomolar concentration. The nisin molecule has been shown to bind to lipid II, which is the main transporter of peptidoglycan subunits from the cytoplasm to the cell wall
  • In some instances, the bacteriocin has anti-fungal activity. A number of bacteriocins with anti-yeast or anti-fungal activity have been identified. For example, bacteriocins from Bacillus have been shown to have neutralizing activity against some yeast strains (see, for example, Adetunji and Olaoye, Malaysian Journal of Microbiology 9:130-13, 2013). In another example, an Enterococcus faecalis peptide has been shown to have neutralizing activity against Candida species (see, for example, Shekh and Roy, BMC Microbiology 12:132, 2012). In another example, bacteriocins from Pseudomonas have been shown to have neutralizing activity against fungi, such as Curvularia lunata, Fusarium species, Helminthosporium species, and Biopolaris species (see, for example, Shalani and Srivastava, The Internet Journal of Microbiology Volume 5 Number 2, 2008). In another example, botrycidin AJ1316 and alirin B1 from B. subtilis have been shown to have antifungal activities.
  • A modulating agent including a bacteriocin as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of bacteriocin concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of bacteriocin concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of bacteriocin concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • As illustrated by Examples 8, 9, or 16, bacteriocins (e.g., colA or nisin) can be used as modulating agents that target an endosymbiotic bacterium in an insect host to decrease the fitness of the host (e.g., as outlined herein).
  • (b) Lysins
  • The modulating agent described herein may include a lysin (e.g., also known as a murein hydrolase or peptidoglycan autolysin). Any lysin suitable for inhibiting a bacterium resident in the host may be used. In some instances, the lysin is one that can be naturally produced by a bacterial cell. In some instances, the lysin is one that can be naturally produced by a bacteriophage. In some instances, the lysin is obtained from a phage that inhibits a bacterium resident in the host. In some instances, the lysin is engineered based on a naturally occurring lysin. In some instances, the lysin is engineered to be secreted by a host bacterium, for example, by introducing a signal peptide to the lysin. In some instances, the lysin is used in combination with a phage holin. In some instances, a lysin is expressed by a recombinant bacterium host that is not sensitive to the lysin. In some instances, the lysin is used to inhibit a Gram-positive or Gram-negative bacterium resident in the host.
  • The lysin may be any class of lysin and may have one or more substrate specificities. For example, the lysin may be a glycosidase, an endopeptidase, a carboxypeptidase, or a combination thereof. In some instances, the lysin cleaves the β-1-4 glycosidic bond in the sugar moiety of the cell wall, the amide bond connecting the sugar and peptide moieties of the bacterial cell wall, and/or the peptide bonds between the peptide moieties of the cell wall. The lysin may belong to one or more specific lysin groups, depending on the cleavage site within the peptidoglycan. In some instances, the lysin is a N-acetyl-β-D-muramidase (e.g., lysozyme), lytic transglycosylase, N-acetyl-β-D-glucosaminidase, N-acetylmuramyl-L-alanine amidase, L,D-endopeptidase, D,D-endopeptidase, D,D-carboxypeptidase, L,D-carboxypeptidase, or L,D-transpeptidase. Non-limiting examples of lysins and their activities are listed in Table 5.
  • TABLE 5
    Examples of Lysins
    Target Bacteria Producer Lysins Activity Sequence
    S.pneumoniae Cp1 Cpl-1 Muramidase MVKKNDLFVDVSSH
    NGYDITGILEQMGTT
    NTIIKISESTTYLNPCL
    SAQVEQSNPIGFYHF
    ARFGGDVAEAEREA
    QFFLDNVPMQVKYLV
    LDYEDDPSGDAQAN
    TNACLRFMQMIADAG
    YKPIYYSYKPFTHDN
    VDYQQILAQFPNSLW
    IAGYGLNDGTANFEY
    FPSMDGIRWWQYSS
    NPFDKNIVLLDDEED
    DKPKTAGTWKQDSK
    GWWFRRNNGSFPY
    NKWEKIGGVWYYFD
    SKGYCLTSEWLKDN
    EKWYYLKDNGAMAT
    GWVLVGSEWYYMD
    DSGAMVTGWVKYKN
    NWYYMTNERGNMV
    SNEFIKSGKGWYFM
    NTNGELADNPSFTKE
    PDGLITVA
    (SEQ ID NO: 52)
    S.pneumoniae Dp-1 Pal Amidase MGVDIEKGVAWMQA
    RKGRVSYSMDFRDG
    PDSYDCSSSMYYAL
    RSAGASSAGWAVNT
    EYMHAWLIENGYELI
    SENAPWDAKRGDIFI
    WGRKGASAGAGGH
    TGMFIDSDNIIHCNYA
    YDGISVNDHDERWY
    YAGQPYYYVYRLTNA
    NAQPAEKKLGWQKD
    ATGFWYARANGTYP
    KDEFEYIEENKSWFY
    FDDQGYMLAEKWLK
    HTDGNWYWFDRDG
    YMATSWKRIGESWY
    YFNRDGSMVTGWIK
    YYDNWYYCDATNGD
    MKSNAFIRYNDGWY
    LLLPDGRLADKPQFT
    VEPDGLITAKV
    (SEQ ID NO: 53)
    S.pyogenes C1 C1 Amidase N/A
    B.anthracis γ PlyG Amidase MEIQKKLVDPSKYGT
    KCPYTMKPKYITVHN
    TYNDAPAENEVSYMI
    SNNNEVSFHIAVDDK
    KAIQGIPLERNAWAC
    GDGNGSGNRQSISV
    EICYSKSGGDRYYKA
    EDNAVDVVRQLMSM
    YNIPIENVRTHQSWS
    GKYCPHRMLAEGRW
    GAFIQKVKNGNVATT
    SPTKQNIIQSGAFSPY
    ETPDVMGALTSLKMT
    ADFILQSDGLTYFISK
    PTSDAQLKAMKEYLD
    RKGWWYEVK
    (SEQ ID NO: 54)
    B.anthracis Ames PlyPH Amidase N/A
    prophage
    E. faecalis and Phi1 PlyV12 Amidase N/A
    E. faecium
    S. aureus ϕMR11 MV-L Endopeptidase MQAKLTKKEFIEWLK
    and amidase TSEGKQFNVDLWYG
    FQCFDYANAGWKVL
    FGLLLKGLGAKDIPFA
    NNFDGLATVYQNTP
    DFLAQPGDMVVFGS
    NYGAGYGHVAWVIE
    ATLDYIIVYEQNWLG
    GGWTDRIEQPGWG
    WEKVTRRQHAYDFP
    MWFIRPNFKSETAPR
    SIQSPTQASKKETAK
    PQPKAVELKIIKDVVK
    GYDLPKRGGNPKGIV
    IHNDAGSKGATAEAY
    RNGLVNAPLSRLEAG
    IAHSYVSGNTVWQAL
    DESQVGWHTANQLG
    NKYYYGIEVCQSMG
    ADNATFLKNEQATFQ
    ECARLLKKWGLPAN
    RNTIRLHNEFTSTSC
    PHRSSVLHTGFDPVT
    RGLLPEDKQLQLKDY
    FIKQIRVYMDGKIPVA
    TVSNESSASSNTVKP
    VASAWKRNKYGTYY
    MEENARFTNGNQPIT
    VRKIGPFLSCPVAYQ
    FQPGGYCDYTEVML
    QDGHVWVGYTWEG
    QRYYLPIRTWNGSAP
    PNQILGDLWGEIS
    (SEQ ID NO: 55)
    S.pyogenes C1 PlyC Amidase N/A
    S.agalactiae B30 GBS lysin Muramidase and MVINIEQAIAWMASR
    endopeptidase KGKVTYSMDYRNGP
    SSYDCSSSVYFALRS
    AGASDNGWAVNTEY
    EHDWLIKNGYVLIAE
    NTNWNAQRGDIFIW
    GKRGASAGAFGHTG
    MFVDPDNIIHCNYGY
    NSITVNNHDEIWGYN
    GQPYVYAYRYSGKQ
    SNAKVDNKSVVSKFE
    KELDVNTPLSNSNMP
    YYEATISEDYYVESK
    PDVNSTDKELLVAGT
    RVRVYEKVKGWARI
    GAPQSNQWVEDAYL
    IDATDM
    (SEQ ID NO: 56)
    S.aureus P68 Lys16 Endopeptidase N/A
    S.aureus K LysK Amidase and MAKTQAEINKRLDAY
    endopeptidase AKGTVDSPYRVKKAT
    SYDPSFGVMEAGAID
    ADGYYHAQCQDLITD
    YVLWLTDNKVRTWG
    NAKDQIKQSYGTGFK
    IHENKPSTVPKKGWI
    AVFTSGSYEQWGHI
    GIVYDGGNTSTFTILE
    QNWNGYANKKPTKR
    VDNYYGLTHFIEIPVK
    AGTTVKKETAKKSAS
    VKTPAPKKKATLKVSK
    NHINYTMDKRGKKPE
    GMVIHNDAGRSSGQ
    QYENSLANAGYARY
    ANGIAHYYGSEGYV
    WEAIDAKNQIAWHTG
    DGTGANSGNFRFAGI
    EVCQSMSASDAQFL
    KNEQAVFQFTAEKFK
    EWGLTPNRKTVRLH
    MEFVPTACPHRSMV
    LHTGFNPVTQGRPS
    QAIMNKLKDYFIKQIK
    NYMDKGTSSSTVVK
    DGKTSSASTPATRPV
    TGSWKKNQYGTWYK
    PENATFVNGNQPIVT
    RIGSPFLNAPVGGNL
    PAGATIVYDEVCIQA
    GHIWIGYNAYNGNRV
    YCPVRTCQGVPPNQI
    PGVAWGVFK
    (SEQ ID NO: 57)
    L.monocytogenes A118 Ply118 Amidase MTSYYYSRSLANVNK
    LADNTKAAARKLLDW
    SESNGIEVLIYETIRTK
    EQQAANVNSGASQT
    MRSYHLVGQALDFV
    MAKGKTVDWGAYRS
    DKGKKFVAKAKSLGF
    EWGGDWSGFVDNP
    HLQFNYKGYGTDTF
    GKGASTSNSSKPSA
    DTNTNSLGLVDYMNL
    NKLDSSFANRKKLAT
    SYGIKNYSGTATQNT
    TLLAKLKAGKPHTPA
    SKNTYYTENPRKVKT
    LVQCDLYKSVDFTTK
    NQTGGTFPPGTVFTI
    SGMGKTKGGTPRLK
    TKSGYYLTANTKFVK
    KI
    (SEQ ID NO: 58)
    L.monocytogenes A511 Ply511 Amidase MVKYTVENKIIAGLPK
    GKLKGANFVIAHETA
    NSKSTIDNEVSYMTR
    NWKNAFVTHFVGGG
    GRVVQVANVNYVSW
    GAGQYANSYSYAQV
    ELCRTSNATTFKKDY
    EVYCQLLVDLAKKAG
    IPITLDSGSKTSDKGI
    KSHKWVADKLGGTT
    HQDPYAYLSSWGISK
    AQFASDLAKVSGGG
    NTGTAPAKPSTPAPK
    PSTPSTNLDKLGLVD
    YMNAKKMDSSYSNR
    DKLAKQYGIANYSGT
    ASQNTTLLSKIKGGA
    PKPSTPAPKPSTSTA
    KKIYFPPNKGNWSVY
    PTNKAPVKANAIGAIN
    PTKFGGLTYTIQKDR
    GNGVYEIQTDQFGR
    VQVYGAPSTGAVIKK
    (SEQ ID NO: 59)
    L.monocytogenes A500 Ply500 Endopeptidase MALTEAWLIEKANRK
    LNAGGMYKITSDKTR
    NVIKKMAKEGIYLCVA
    QGYRSTAEQNALYA
    QGRTKPGAIVTNAKG
    GQSNHNYGVAVDLC
    LYTNDGKDVIWESTT
    SRWKKVVAAMKAEG
    FKWGGDWKSFKDYP
    HFELCDAVSGEKIPA
    ATQNTNTNSNRYEG
    KVIDSAPLLPKMDFK
    SSPFRMYKVGTEFLV
    YDHNQYWYKTYIDD
    KLYYMYKSFCDVVAK
    KDAKGRIKVRIKSAK
    DLRIPVWNNIKLNSG
    KIKWYAPNVKLAWYN
    YRRGYLELWYPNDG
    WYYTAEYFLK
    (SEQ ID NO: 60)
    S.pneumoniae ϕDp-1 Pal, S Endopeptidase N/A
    and amidase
    S.agalactiae LambdaSa1 LambdaSa1 Glycosidase MVINIEQAIAWMASR
    prophage KGKVTYSMDYRNGP
    SSYDCSSSVYFALRS
    AGASDNGWAVNTEY
    EHDWLIKNGYVLIAE
    NTNWNAQRGDIFIW
    GKRGASAGAFGHTG
    MFVDPDNIIHCNYGY
    NSITVNNHDEIWGYN
    GQPYVYAYRYARKQ
    SNAKVDNQSVVSKF
    EKELDVNTPLSNSNM
    PYYEATISEDYYVES
    KPDVNSTDKELLVAG
    TRVRVYEKVKGWARI
    GAPQSNQWVEDAYL
    IDATDM
    (SEQ ID NO: 61)
    S.agalactiae LambdaSa2 LambdaSa2 Glycosidase and MEINTEIAIAWMSAR
    prophage endopeptidase QGKVSYSMDYRDGP
    NSYDCSSSVYYALRS
    AGASSAGWAVNTEY
    MHDWLIKNGYELIAE
    NVDWNAVRGDIAIW
    GMRGHSSGAGGHV
    VMFIDPENIIHCNWA
    NNGITVNNYNQTAAA
    SGWMYCYVYRLKSG
    ASTQGKSLDTLVKET
    LAGNYGNGEARKAV
    LGNQYEAVMSVINGK
    TTTNQKTVDQLVQEV
    IAGKHGNGEARKKSL
    GSQYDAVQKRVTELL
    KKQPSEPFKAQEVN
    KPTETKTSQTELTGQ
    ATATKEEGDLSFNGT
    ILKKAVLDKILGNCKK
    HDILPSYALTILHYEG
    LWGTSAVGKADNNW
    GGMTWTGQGNRPS
    GVTVTQGSARPSNE
    GGHYMHYASVDDFL
    TDWFYLLRAGGSYK
    VSGAKTFSEAIKGMF
    KVGGAVYDYAASGF
    DSYIVGASSRLKAIEA
    ENGSLDKFDKATDIG
    DGSKDKIDITIEGIEVT
    INGITYELTKKPV
    (SEQ ID NO: 62)
    S.uberis (ATCC700407) Ply700 Amidase MTDSIQEMRKLQSIP
    prophage VRYDMGDRYGNDAD
    RDGRIEMDCSSAVSK
    ALGISMTNNTETLQQ
    ALPAIGYGKIHDAVD
    GTFDMQAYDVIIWAP
    RDGSSSLGAFGHVLI
    ATSPTTAIHCNYGSD
    GITENDYNYIWEING
    RPREIVFRKGVTQTQ
    ATVTSQFERELDVNA
    RLTVSDKPYYEATLS
    EDYYVEAGPRIDSQD
    KELIKAGTRVRVYEK
    LNGWSRINHPESAQ
    WVEDSYLVDATEM
    (SEQ ID NO: 63)
    S.suis SMP LySMP Glycosidase and N/A
    endopeptidase
    B.anthracis Bcp1 PlyB Muramidase N/A
    S.aureus Phi11 and Phi11 Amidase and MQAKLTKNEFIEWLK
    Phi12 lysin endopeptidase TSEGKQFNVDLWYG
    FQCFDYANAGWKVL
    FGLLLKGLGAKDIPFA
    NNFDGLATVYQNTP
    DFLAQPGDMVVFGS
    NYGAGYGHVAWVIE
    ATLDYIIVYEQNWLG
    GGWTDGIEQPGWG
    WEKVTRRQHAYDFP
    MWFIRPNFKSETAPR
    SVQSPTQAPKKETAK
    PQPKAVELKIIKDVVK
    GYDLPKRGSNPKGIV
    IHNDAGSKGATAEAY
    RNGLVNAPLSRLEAG
    IAHSYVSGNTVWQAL
    DESQVGWHTANQIG
    NKYYYGIEVCQSMG
    ADNATFLKNEQATFQ
    ECARLLKKWGLPAN
    RNTIRLHNEFTSTSC
    PHRSSVLHTGFDPVT
    RGLLPEDKRLQLKDY
    FIKQIRAYMDGKIPVA
    TVSNESSASSNTVKP
    VASAWKRNKYGTYY
    MEESARFTNGNQPIT
    VRKVGPFLSCPVGY
    QFQPGGYCDYTEVM
    LQDGHVWVGYTWE
    GQRYYLPIRTWNGS
    APPNQILGDLWGEIS
    (SEQ ID NO: 64)
    S.aureus ϕH5 LysH5 Amidase and MQAKLTKKEFIEWLK
    endopeptidase TSEGKQYNADGWYG
    FQCFDYANAGWKAL
    FGLLLKGVGAKDIPF
    ANNFDGLATVYQNTP
    DFLAQPGDMVVFGS
    NYGAGYGHVAWVIE
    ATLDYIIVYEQNWLG
    GGWTDGVQQPGSG
    WEKVTRRQHAYDFP
    MWFIRPNFKSETAPR
    SVQSPTQASKKETAK
    PQPKAVELKIIKDVVK
    GYDLPKRGSNPNFIVI
    HNDAGSKGATAEAY
    RNGLVNAPLSRLEAG
    IAHSYVSGNTVWQAL
    DESQVGWHTANQIG
    NKYGYGIEVCQSMG
    ADNATFLKNEQATFQ
    ECARLLKKWGLPAN
    RNTIRLHNEFTSTSC
    PHRSSVLHTGFDPVT
    RGLLPEDKRLQLKDY
    FIKQIRAYMDGKIPVA
    TVSNDSSASSNTVKP
    VASAWKRNKYGTYY
    MEESARFTNGNQPIT
    VRKVGPFLSCPVGY
    QFQPGGYCDYTEVM
    LQDGHVWVGYTWE
    GQRYYLPIRTWNGS
    APPNQILGDLWGEIS
    (SEQ ID NO: 65)
    S.wameri ϕWMY LysWMY Amidase and MKTKAQAKSWINSKI
    endopeptidase GKGIDWDGMYGYQC
    MDEAVDYIHHVTDGK
    VTMWGNAIDAPKNN
    FQGLCTVYTNTPEFR
    PAYGDVIVWSYGTFA
    TYGHIAIVVNPDPYG
    DLQYITVLEQNWNGN
    GIYKTEFATIRTHDYT
    GVSHFIRPKFADEVK
    ETAKTVNKLSVQKKI
    VTPKNSVERIKNYVK
    TSGYINGEHYELYNR
    GHKPKGVVIHNTAGT
    ASATQEGQRLTNMT
    FQQLANGVAHVYIDK
    NTIYETLPEDRIAWHV
    AQQYGNTEFYGIEVC
    GSRNTDKEQFLANE
    QVAFQEAARRLKSW
    GMRANRNTVRLHHT
    FSSTECPDMSMLLHT
    GYSMKNGKPTQDITN
    KCADYFMKQINAYID
    GKQPTSTVVGSSSS
    NKLKAKNKDKSTGW
    NTNEYGTLWKKEHA
    TFTCGVRQGIVTRTT
    GPFTSCPQAGVLYY
    GQSVNYDTVCKQDG
    YVWISWTTSDGYDV
    WMPIRTWDRSTDKV
    SEIWGTIS
    (SEQ ID NO: 66)
    Streptococci (GBS) ϕNCTC PlyGBS Muramidase and MATYQEYKSRSNGN
    11261 endopeptidase AYDIDGSFGAQCWD
    GYADYCKYLGLPYA
    NCTNTGYARDIWEQ
    RHENGILNYFDEVEV
    MQAGDVAIFMVVDG
    VTPYSHVAIFDSDAG
    GGYGWFLGQNQGG
    ANGAYNIVKIPYSATY
    PTAFRPKVFKNAVTV
    TGNIGLNKGDYFIDV
    SAYQQADLTTTCQQ
    AGTTKTIIKVSESIAW
    LSDRHQQQANTSDPI
    GYYHFGRFGGDSAL
    AQREADLFLSNLPSK
    KVSYLVIDYEDSASA
    DKQANTNAVIAFMDK
    IASAGYKPIYYSYKPF
    TLNNIDYQKIIAKYPN
    SIWIAGYPDYEVRTE
    PLWEFFPSMDGVRW
    WQFTSVGVAGGLDK
    NIVLLADDSSKMDIPK
    VDKPQELTFYQKLAT
    NTKLDNSNVPYYEAT
    LSTDYYVESKPNASS
    ADKEFIKAGTRVRVY
    EKVNGWSRINHPES
    AQWVEDSYLVNATD
    M
    (SEQ ID NO: 67)
    C.perfringens ϕ3626 Ply3626 Amidase N/A
    C.difficile ϕCD27 CD27 Amidase N/A
    lysin
    E.faecalis ϕ1 PlyV12 Amidase N/A
    A.naeslundii ϕAv-1- Av-1 Putative N/A
    lysin amidase/
    muramidase
    L.gasseri ϕgaY LysgaY Muramidase N/A
    S.aureus ϕSA4 LysSA4 Amidase and N/A
    endopeptidase
    S.haemolyticus ϕSH2 SH2 Amidase and N/A
    endopeptidase
    B.thuringiensis ϕBtCS33 PlyBt33 Amidase N/A
    L.monocytogenes ϕP40 PlyP40 Amidase N/A
    L.monocytogenes ϕFWLLm3 LysZ5 Amidase MVKYTVENKIIAGLPK
    GKLKGANFVIAHETA
    NSKSTIDNEVSYMTR
    NWQNAFVTHFVGGG
    GRVVQVANVNYVSW
    GAGQYANSYSYAQV
    ELCRTSNATTFKKDY
    EVYCQLLVDLAKKAG
    IPITLDSGSKTSDKGI
    KSHKWVADKLGGTT
    HQDPYAYLSSWGISK
    AQFASDLAKVSGGG
    NTGTAPAKPSTPSTN
    LDKLGLVDYMNAKK
    MDSSYSNRAKLAKQ
    YGIANYSGTASQNTT
    LLSKIKGGAPKPSTP
    APKPSTSTAKKIYFPP
    NKGNWSVYPTNKAP
    VKANAIGAINPTKFG
    GLTYTIQKDRGNGVY
    EIQTDQFGRVQVYGA
    PSTGAVIKK
    (SEQ ID NO: 68)
    B.cereus ϕBPS13 LysBPS13 Amidase MAKREKYIFDVEAEV
    GKAAKSIKSLEAELS
    KLQKLNKEIDATGGD
    RTEKEMLATLKAAKE
    VNAEYQKMQRILKDL
    SKYSGKVSRKEFND
    SKVINNAKTSVQGGK
    VTDSFGQMLKNMER
    QINSVNKQFDNHRKA
    MVDRGQQYTPHLKT
    NRKDSQGNSNPSMM
    GRNKSTTQDMEKAV
    DKFLNGQNEATTGLN
    QALYQLKEISKLNRR
    SESLSRRASASGYM
    SFQQYSNFTGDRRT
    VQQTYGGLKTANRE
    RVLELSGQATGISKE
    LDRLNSKKGLTAREG
    EERKKLMRQLEGIDA
    ELTARKKLNSSLDET
    TSNMEKFNQSLVDA
    QVSVKPERGTMRGM
    MYERAPAIALAIGGAI
    TATIGKLYSEGGNHS
    KAMRPDEMYVGQQT
    GAVGANWRPNRTAT
    MRSGLGNHLGFTGQ
    EMMEFQSNYLSANG
    YHGAEDMKAATTGQ
    ATFARATGLGSDEVK
    DFFNTAYRSGGIDGN
    QTKQFQNAFLGAMK
    QSGAVGREKDQLKA
    LNGILSSMSQNRTVS
    NQDMMRTVGLQSAI
    SSSGVASLQGTKGG
    ALMEQLDNGIREGFN
    DPQMRVLFGQGTKY
    QGMGGRAALRKQM
    EKGISDPDNLNTLIDA
    SKASAGQDPAEQAE
    VLATLASKMGVNMS
    SDQARGLIDLQPSGK
    LTKENIDKVMKEGLK
    EGSIESAKRDKAYSE
    SKASIDNSSEAATAK
    QATELNDMGSKLRQ
    ANAALGGLPAPLYTA
    IAAVVAFTAAVAGSA
    LMFKGASWLKGGMA
    SKYGGKGGKGGKG
    GGTGGGGGAGGAA
    ATGAGAAAGAGGVG
    AAAAGEVGAGVAAG
    GAAAGAAAGGSKLA
    GVGKGFMKGAGKLM
    LPLGILMGASEIMQA
    PEEAKGSAIGSAVGG
    IGGGIAGGAATGAIA
    GSFLGPIGTAVGGIA
    GGIAGGFAGSSLGET
    IGGWFDSGPKEDAS
    AADKAKADASAAALA
    AAAGTSGAVGSSAL
    QSQMAQGITGAPNM
    SQVGSMASALGISSG
    AMASALGISSGQENQ
    IQTMTDKENTNTKKA
    NEAKKGDNLSYERE
    NISMYERVLTRAEQIL
    AQARAQNGIMGVGG
    GGTAGAGGGINGFT
    GGGKLQFLAAGQKW
    SSSNLQQHDLGFTD
    QNLTAEDLDKWIDSK
    APQGSMMRGMGAT
    FLKAGQEYGLDPRYL
    IAHAAEESGWGTSKI
    ARDKGNFFGIGAFDD
    SPYSSAYEFKDGTGS
    AAERGIMGGAKWISE
    KYYGKGNTTLDKMK
    AAGYATNASWAPNIA
    SIMAGAPTGSGSGN
    VTATINVNVKGDEKV
    SDKLKNSSDMKKAG
    KDIGSLLGFYSREMTI
    A
    (SEQ ID NO: 69)
    S.aureus ϕGH15 LysGH15 Amidase and MAKTQAEINKRLDAY
    endopeptidase AKGTVDSPYRIKKAT
    SYDPSFGVMEAGAID
    ADGYYHAQCQDLITD
    YVLWLTDNKVRTWG
    NAKDQIKQSYGTGFK
    IHENKPSTVPKKGWI
    AVFTSGSYQQWGHI
    GIVYDGGNTSTFTILE
    QNWNGYANKKPTKR
    VDNYYGLTHFIEIPVK
    AGTTVKKETAKKSAS
    KTPAPKKKATLKVSK
    NHINYTMDKRGKKPE
    GMVIHNDAGRSSGQ
    QYENSLANAGYARY
    ANGIAHYYGSEGYV
    WEAIDAKNQIAWHTG
    DGTGANSGNFRFAGI
    EVCQSMSASDAQFL
    KNEQAVFQFTAEKFK
    EWGLTPNRKTVRLH
    MEFVPTACPHRSMV
    LHTGFNPVTQGRPS
    QAIMNKLKDYFIKQIK
    NYMDKGTSSSTVVK
    DGKTSSASTPATRPV
    TGSWKKNQYGTWYK
    PENATFVNGNQPIVT
    RIGSPFLNAPVGGNL
    PAGATIVYDEVCIQA
    GHIWIGYNAYNGDRV
    YCPVRTCQGVPPNHI
    PGVAWGVFK
    (SEQ ID NO: 70)
    S.aureus ϕvB SauS- HydH5 Endopeptidase N/A
    PLA88 and glycosidase
    E.faecalis ϕF168/08 Lys168 Endopeptidase N/A
    E.faecalis ϕF170/08 Lys170 Amidase N/A
    S.aureus ϕP-27/HP P-27/HP Nonspecified N/A
    C.perfringens ϕSM101 Psm Muramidase N/A
    C.sporogenes ϕ8074-B1 CS74L Amidase MKIGIDMGHTLSGAD
    YGVVGLRPESVLTRE
    VGTKVIYKLQKLGHV
    VVNCTVDKASSVSES
    LYTRYYRANQANVDL
    FISIHFNATPGGTGTE
    VYTYAGRQLGEATRI
    RQEFKSLGLRDRGT
    KDGSGLAVIRNTKAK
    AMLVECCFCDNPND
    MKLYNSESFSNAIVK
    GITGKLPNGESGNNN
    QGGNKVKAVVIYNEG
    ADRRGAEYLADYLN
    CPTISNSRTFDYSCV
    EHVYAVGGKKEQYT
    KYLKTLLSGANRYDT
    MQQILNFINGGK
    (SEQ ID NO: 71)
    S.typhimurium ϕSPN1S SPN1S Glycosidase MDINQFRRASGINEQ
    LAARWFPHITTAMNE
    FGITKPDDQAMFIAQ
    VGHESGGFTRLQEN
    FNYSVNGLSGFIRAG
    RITPDQANALGRKTY
    EKSLPLERQRAIANL
    VYSKRMGNNGPGDG
    WNYRGRGLIQITGLN
    NYRDCGNGLKVDLV
    AQPELLAQDEYAARS
    AAWFFSSKGCMKYT
    GDLVRVTQIINGGQN
    GIDDRRTRYAAARKV
    LAL
    (SEQ ID NO: 72)
    C.michiganensis ϕCMP1 CMP1 Peptidase N/A
    C.michiganensis ϕCN77 CN77 Peptidase MGYWGYPNGQIPND
    KMALYRGCLLRADAA
    AQAYALQDAYTRAT
    GKPLVILEGYRDLTR
    QKYLRNLYLSGRGNI
    AAVPGLSNHGWGLA
    CDFAAPLNSSGSEEH
    RWMRQNAPLFGFD
    WARGKADNEPWHW
    EYGNVPVSRWASLD
    VTPIDRNDMADITEG
    QMQRIAVILLDTEIQT
    PLGPRLVKHALGDAL
    LLGQANANSIAEVPD
    KTWDVLVDHPLAKN
    EDGTPLKVRLGDVAK
    YEPLEHQNTRDAIAK
    LGTLQFTDKQLATIG
    AGVKPIDEASLVKKIV
    DGVRALFGRAAA
    (SEQ ID NO: 73)
    A.baumannii ϕAB2 LysAB2 Glycosidase MILTKDGFSIIRNELF
    GGKLDQTQVDAINFI
    VAKATESGLTYPEAA
    YLLATIYHETGLPSGY
    RTMQPIKEAGSDSYL
    RSKKYYPYIGYGYVQ
    LTWKENYERIGKLIG
    VDLIKNPEKALEPLIAI
    QIAIKGMLNGWFTGV
    GFRRKRPVSKYNKQ
    QYVAARNIINGKDKA
    ELIAKYAIIFERALRSL
    (SEQ ID NO: 74)
    B.cereus ϕB4 LysB4 Endopeptidase MAMALQTLIDKANRK
    LNVSGMRKDVADRT
    RAVITQMHAQGIYICV
    AQGFRSFAEQNALY
    AQGRTKPGSIVTNAR
    GGQSNHNYGVAVDL
    CLYTQDGSDVIWTVE
    GNFRKVIAAMKAQGF
    KWGGDWVSFKDYP
    HFELYDVVGGQKPP
    ADNGGAVDNGGGS
    GSTGGSGGGSTGG
    GSTGGGYDSSWFTK
    ETGTFVTNTSIKLRTA
    PFTSADVIATLPAGSP
    VNYNGFGIEYDGYV
    WIRQPRSNGYGYLA
    TGESKGGKRQNYW
    GTFK
    (SEQ ID NO: 75)
    P.aeruginosa ϕKMV KMV45 Nonspecified N/A
    C.tyrobutyricum ϕCTP1 Ctp1I Glycosidase MKKIADISNLNGNVD
    VKLLFNLGYIGIIAKAS
    EGGTFVDKYYKQNY
    TNTKAQGKITGAYHF
    ANFSTIAKAQQEANF
    FLNCIAGTTPDFVVLD
    LEQQCTGDITDACLA
    FLNIVAKKFKCVVYC
    NSSFIKEHLNSKICAY
    PLWIANYGVATPAFT
    LWTKYAMWQFTEKG
    QVSGISGYIDFSYITD
    EFIKYIKGEDEVENLV
    VYNDGADQRAAEYL
    ADRLACPTINNARKF
    DYSNVKNVYAVGGN
    KEQYTSYLTTLIAGST
    RYTTMQAVLDYIKNL
    K
    (SEQ ID NO: 76)
    P.aeruginosa ϕEL EL188 Transglycosylase N/A
    P.aeruginosa ϕKZ KZ144 Transglycosylase N/A
    S.aureus Ply187 Cell Wall MALPKTGKPTAKQVV
    Hydrolase DWAINLIGSGVDVDG
    YYGRQCWDLPNYIF
    NRYWNFKTPGNARD
    MAWYRYPEGFKVFR
    NTSDFVPKPGDIAVW
    TGGNYNWNTWGHT
    GIVVGPSTKSYFYSV
    DQNWNNSNSYVGSP
    AAKIKHSYFGVTHFV
    RPAYKAEPKPTPPAQ
    NNPAPKDPEPSKKP
    ESNKPIYKVVTKILFT
    TANIEHVKANRFVHYI
    TKSDNHNNKPNKIVIK
    NTNTALSTIDVYRYR
    DELDKDEIPHFFVDR
    LNVWACRPIEDSING
    YHDSVVLSITETRTAL
    SDNFKMNEIECLSLA
    ESILKANNKKMSASNI
    IVDNKAWRTFKLHTG
    KDSLKSSSFTSKDYQ
    KAVNELIKLFNDKDKL
    LNNKPKDVVERIRIRT
    IVKENTKFVPSELKPR
    NNIRDKQDSKIDRVIN
    NYTLKQALNIQYKLN
    PKPQTSNGVSWYNA
    SVNQIKSAMDTTKIFN
    NNVQVYQFLKLNQY
    QGIPVDKLNKLLVGK
    GTLANQGHAFADGC
    KKYNINEIYLIAHRFLE
    SANGTSFFASGKTGV
    YNYFGIGAFDNNPNN
    AMAFARSHGWTSPT
    KAIIGGAEFVGKGYF
    NVGQNTLYRMRWNP
    QKPGTHQYATDISW
    AKVQAQMISAMYKEI
    GLTGDYFIYDQYKK
    (SEQ ID NO: 77)
    P.uorescens ϕOBP OBPgp279 Glycosidase N/A
    L.monocytogenes ϕP35 PlyP35 Amidase MARKFTKAELVAKAE
    KKVGGLKPDVKKAVL
    SAVKEAYDRYGIGIIV
    SQGYRSIAEQNGLYA
    QGRTKPGNIVTNAKG
    GQSNHNFGVAVDFAI
    DLIDDGKIDSWQPSA
    TIVNMMKRRGFKWG
    GDWKSFTDLPHFEA
    CDWYRGERKYKVDT
    SEWKKKENINIVIKDV
    GYFQDKPQFLNSKS
    VRQWKHGTKVKLTK
    HNSHWYTGVVKDGN
    KSVRGYIYHSMAKVT
    SKNSDGSVNATINAH
    AFCWDNKKLNGGDFI
    NLKRGFKGITHPASD
    GFYPLYFASRKKTFYI
    PRYMFDIKK
    (SEQ ID NO: 78)
    L.fermentum ϕPYB5 Lyb5 Muramidase N/A
    S.pneumoniae ϕCP-7 Cpl-7 Muramidase MVKKNDLFVDVASH
    QGYDISGILEEAGTT
    NTIIKVSESTSYLNPC
    LSAQVSQSNPIGFYH
    FAWFGGNEEEAEAE
    ARYFLDNVPTQVKYL
    VLDYEDHASASVQR
    NTTACLRFMQIIAEAG
    YTPIYYSYKPFTLDNV
    DYQQILAQFPNSLWI
    AGYGLNDGTANFEY
    FPSMDGIRWWQYSS
    NPFDKNIVLLDDEKE
    DNINNENTLKSLTTVA
    NEVIQGLWGNGQER
    YDSLANAGYDPQAV
    QDKVNEILNAREIADL
    TTVANEVIQGLWGN
    GQERYDSLANAGYD
    PQAVQDKVNEILNAR
    EIADLTTVANEVIQGL
    WGNGQERYDSLANA
    GYDPQAVQDKVNEL
    LS
    (SEQ ID NO: 79)
    P. ϕ2-1 201φ92- Glycosidase N/A
    chlororaphis201 1gp229
    S.enterica ϕPVP-SE1) PVP- Glycosidase N/A
    SE1gp146
    Corynebacterium ϕBFK20 BKF20 Amidase N/A
    E.faecalis ϕEFAP-1 EFAL-1 Amidase MKLKGILLSVVTTFGL
    LFGATNVQAYEVNNE
    FNLQPWEGSQQLAY
    PNKIILHETANPRATG
    RNEATYMKNNWFNA
    HTTAIVGDGGIVYKV
    APEGNVSWGAGNAN
    PYAPVQIELQHTNDP
    ELFKANYKAYVDYTR
    DMGKKFGIPMTLDQ
    GGSLWEKGVVSHQ
    WVTDFVWGDHTDPY
    GYLAKMGISKAQLAH
    DLANGVSGNTATPTP
    KPDKPKPTQPSKPSN
    KKRFNYRVDGLEYV
    NGMWQIYNEHLGKID
    FNWTENGIPVEVVDK
    VNPATGQPTKDQVL
    KVGDYFNFQENSTG
    VVQEQTPYMGYTLS
    HVQLPNEFIWLFTDS
    KQALMYQ
    (SEQ ID NO: 80)
    Lactobacilli lamdaSA2 LysA, Nonspecified N/A
    LysA2, and
    Lysga Y
    S.aureus SAL-1 Nonspecified N/A
  • In some instances, the lysin is a functionally active variant of the lysins described herein. In some instances, the variant of the lysin has at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a lysin described herein or a naturally occurring lysin.
  • In some instances, the lysin may be bioengineered to modulate its bioactivity, e.g., increase or decrease or regulate, or to specify a target microorganism. In some instances, the lysin is produced by the translational machinery (e.g. a ribosome, etc.) of a microbial cell. In some instances, the lysin is chemically synthesized. In some instances, the lysin is derived from a polypeptide precursor. The polypeptide precursor can undergo cleavage (for example, processing by a protease) to yield the polypeptide of the lysin itself. As such, in some instances, the lysin is produced from a precursor polypeptide. In some instances, the lysin includes a polypeptide that has undergone post-translational modifications, for example, cleavage, or the addition of one or more functional groups.
  • The lysins described herein may be formulated in a composition for any of the uses described herein. The compositions disclosed herein may include any number or type (e.g., classes) of lysins, such as at least about any one of 1 lysin, 2, 3, 4, 5, 10, 15, 20, or more lysins. A suitable concentration of each lysin in the composition depends on factors such as efficacy, stability of the lysin, number of distinct lysin, the formulation, and methods of application of the composition. In some instances, each lysin in a liquid composition is from about 0.1 ng/mL to about 100 mg/mL. In some instances, each lysin in a solid composition is from about 0.1 ng/g to about 100 mg/g. In some instances, wherein the composition includes at least two types of lysins, the concentration of each type of lysin may be the same or different.
  • A modulating agent including a lysin as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of lysin concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of lysin concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of lysin concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • (c) Antimicrobial Peptides
  • The modulating agent described herein may include an antimicrobial peptide (AMP). Any AMP suitable for inhibiting a microorganism resident in the host may be used. AMPs are a diverse group of molecules, which are divided into subgroups on the basis of their amino acid composition and structure. The AMP may be derived or produced from any organism that naturally produces AMPs, including AMPs derived from plants (e.g., copsin), insects (e.g., drosocin, scorpion peptide (e.g., Uy192, UyCT3, D3, D10, Uy17, Uy192), mastoparan, poneratoxin, cecropin, moricin, melittin), frogs (e.g., magainin, dermaseptin, aurein), and mammals (e.g., cathelicidins, defensins and protegrins). For example, the AMP may be a scorpion peptide, such as Uy192 (5′-FLSTIWNGIKGLL-3′; SEQ ID NO: 227), UyCT3 (5′-LSAIWSGIKSLF-3; SEQ ID NO: 228), D3 (5′-LWGKLWEGVKSLI-3′; SEQ ID NO: 229), and D10 (5′-FPFLKLSLKIPKSAIKSAIKRL-3′; SEQ ID NO: 230), Uy17 (5′-ILSAIWSGIKGLL-3′; SEQ ID NO: 231), or a combination thereof. In some instances, the antimicrobial peptide may be one having at least 90% sequence identity (e.g., at least 90%, 92%, 94%, 96%, 98%, or 100% sequence identity) with one or more of the following: cecropin (SEQ ID NO: 82), melittin, copsin, drosomycin (SEQ ID NO: 93), dermcidin (SEQ ID NO: 81), andropin (SEQ ID NO: 83), moricin (SEQ ID NO: 84), ceratotoxin (SEQ ID NO: 85), abaecin (SEQ ID NO: 86), apidaecin (SEQ ID NO: 87), prophenin (SEQ ID NO: 88), indolicidin (SEQ ID NO: 89), protegrin (SEQ ID NO: 90), tachyplesin (SEQ ID NO: 91), or defensin (SEQ ID NO: 92) to a vector of an animal pathogen. Non-limiting examples of AMPs are listed in Table 6.
  • TABLE 6
    Examples of Antimicrobial Peptides
    Example
    Type Characteristic AMP Sequence
    Anionic rich in glutamic and dermcidin SSLLEKGLDGAKKAVGGLGKL
    peptides aspartic acid GKDAVEDLESVGKGAVHDVKD
    VLDSVL
    (SEQ ID NO: 81)
    Linear cationic lack cysteine cecropin A KWKLFKKIEKVGQNIRDGIIKAG
    α-helical PAVAVVGQATQIAK
    peptides (SEQ ID NO: 82)
    andropin MKYFSVLVVLTLILAIVDQSDAFI
    NLLDKVEDALHTGAQAGFKLIR
    PVERGATPKKSEKPEK
    (SEQ ID NO: 83)
    moricin MNILKFFFVFIVAMSLVSCSTAA
    PAKIPIKAIKTVGKAVGKGLRAI
    NIASTANDVFNFLKPKKRKH
    (SEQ ID NO: 84)
    ceratotoxin MANLKAVFLICIVAFIALQCVVA
    EPAAEDSVVVKRSIGSALKKAL
    PVAKKIGKIALPIAKAALPVAAG
    LVG
    (SEQ ID NO: 85)
    Cationic rich in proline, abaecin MKVVIFIFALLATICAAFAYVPLP
    peptide arginine, NVPQPGRRPFPTFPGQGPFNP
    enriched for phenylalanine, KIKWPQGY
    specific amino glycine, tryptophan (SEQ ID NO: 86)
    acid apidaecins KNFALAILVVTFVVAVFGNTNLD
    PPTRPTRLRREAKPEAEPGNN
    RPVYIPQPRPPHPRLRREAEPE
    AEPGNNRPVYIPQPRPPHPRL
    RREAELEAEPGNNRPVYISQP
    RPPHPRLRREAEPEAEPGNNR
    PVYIPQPRPPHPRLRREAELEA
    EPGNNRPVYISQPRPPHPRLR
    REAEPEAEPGNNRPVYIPQPR
    PPHPRLRREAEPEAEPGNNRP
    VYIPQPRPPHPRLRREAEPEAE
    PGNNRPVYIPQPRPPHPRLRR
    EAKPEAKPGNNRPVYIPQPRP
    PHPRI
    (SEQ ID NO: 87)
    prophenin METQRASLCLGRWSLWLLLLA
    LVVPSASAQALSYREAVLRAVD
    RLNEQSSEANLYRLLELDQPPK
    ADEDPGTPKPVSFTVKETVCP
    RPTRRPPELCDFKENGRVKQC
    VGTVTLDQIKDPLDITCNEGVR
    RFPWWWPFLRRPRLRRQAFP
    PPNVPGPRFPPPNVPGPRFPP
    PNFPGPRFPPPNFPGPRFPPP
    NFPGPPFPPPIFPGPWFPPPPP
    FRPPPFGPPRFPGRR
    (SEQ ID NO: 88)
    indolicidin MQTQRASLSLGRWSLWLLLLG
    LVVPSASAQALSYREAVLRAVD
    QLNELSSEANLYRLLELDPPPK
    DNEDLGTRKPVSFTVKETVCP
    RTIQQPAEQCDFKEKGRVKQC
    VGTVTLDPSNDQFDLNCNELQ
    SVILPWKWPWWPWRRG
    (SEQ ID NO: 89)
    Anionic and contain 1-3 protegrin METQRASLCLGRWSLWLLLLA
    cationic disulfide bond LVVPSASAQALSYREAVLRAVD
    peptides that RLNEQSSEANLYRLLELDQPPK
    contain ADEDPGTPKPVSFTVKETVCP
    cysteine and RPTRQPPELCDFKENGRVKQC
    form disulfide VGTVTLDQIKDPLDITCNEVQG
    bonds VRGGRLCYCRRRFCVCVGRG
    (SEQ ID NO: 90)
    tachyplesins KWCFRVCYRGICYRRCR
    (SEQ ID NO: 91)
    defensin MKCATIVCTIAVVLAATLLNGSV
    QAAPQEEAALSGGANLNTLLD
    ELPEETHHAALENYRAKRATC
    DLASGFGVGSSLCAAHCIARR
    YRGGYCNSKAVCVCRN
    (SEQ ID NO: 92)
    drosomycin MMQIKYLFALFAVLMLVVLGAN
    EADADCLSGRYKGPCAVWDN
    ETCRRVCKEEGRSSGHCSPSL
    KCWCEGC
    (SEQ ID NO: 93)
  • The AMP may be active against any number of target microorganisms. In some instances, the AMP may have antibacterial and/or antifungal activities. In some instances, the AMP may have a narrow-spectrum bioactivity or a broad-spectrum bioactivity. For example, some AMPs target and kill only a few species of bacteria or fungi, while others are active against both gram-negative and gram-positive bacteria as well as fungi.
  • Further, the AMP may function through a number of known mechanisms of action. For example, the cytoplasmic membrane is a frequent target of AMPs, but AMPs may also interfere with DNA and protein synthesis, protein folding, and cell wall synthesis. In some instances, AMPs with net cationic charge and amphipathic nature disrupt bacterial membranes leading to cell lysis. In some instances, AMPs may enter cells and interact with intracellular target to interfere with DNA, RNA, protein, or cell wall synthesis. In addition to killing microorganisms, AMPs have demonstrated a number of immunomodulatory functions that are involved in the clearance of infection, including the ability to alter host gene expression, act as chemokines and/or induce chemokine production, inhibit lipopolysaccharide induced pro-inflammatory cytokine production, promote wound healing, and modulating the responses of dendritic cells and cells of the adaptive immune response.
  • In some instances, the AMP is a functionally active variant of the AMPs described herein. In some instances, the variant of the AMP has at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of an AMP described herein or a naturally derived AMP.
  • In some instances, the AMP may be bioengineered to modulate its bioactivity, e.g., increase or decrease or regulate, or to specify a target microorganism. In some instances, the AMP is produced by the translational machinery (e.g. a ribosome, etc.) of a cell. In some instances, the AMP is chemically synthesized. In some instances, the AMP is derived from a polypeptide precursor. The polypeptide precursor can undergo cleavage (for example, processing by a protease) to yield the polypeptide of the AMP itself. As such, in some instances, the AMP is produced from a precursor polypeptide. In some instances, the AMP includes a polypeptide that has undergone post-translational modifications, for example, cleavage, or the addition of one or more functional groups.
  • The AMPs described herein may be formulated in a composition for any of the uses described herein. The compositions disclosed herein may include any number or type (e.g., classes) of AMPs, such as at least about any one of 1 AMP, 2, 3, 4, 5, 10, 15, 20, or more AMPs. For example, the compositions may include a cocktail of AMPs (e.g., a cocktail of scorpion peptides, e.g., UyCT3, D3, D10, and Uy17). A suitable concentration of each AMP in the composition depends on factors such as efficacy, stability of the AMP, number of distinct AMP in the composition, the formulation, and methods of application of the composition. In some instances, each AMP in a liquid composition is from about 0.1 ng/mL to about 100 mg/mL (about 0.1 ng/mL to about 1 ng/mL, about 1 ng/mL to about 10 ng/mL, about 10 ng/mL to about 100 ng/mL, about 100 ng/mL to about 1000 ng/mL, about 1 mg/mL to about 10 mg/mL, about 10 mg/mL to about 100 mg/mL). In some instances, each AMP in a solid composition is from about 0.1 ng/g to about 100 mg/g (about 0.1 ng/g to about 1 ng/g, about 1 ng/g to about 10 ng/g, about 10 ng/g to about 100 ng/g, about 100 ng/g to about 1000 ng/g, about 1 mg/g to about 10 mg/g, about 10 mg/g to about 100 mg/g). In some instances, wherein the composition includes at least two types of AMPs, the concentration of each type of AMP may be the same or different.
  • A modulating agent including an AMP as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of AMP concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of AMP concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of AMP concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • As illustrated by Examples 16 and 20-22, AMPs, such as scorpion peptides, can be used as modulating agents that target an endosymbiotic bacterium in an insect host to decrease the fitness of the host (e.g., as outlined herein).
  • (d) Nodule C-Rich Peptides
  • The modulating agent described herein may include a nodule C-rich peptide (NCR peptide). NCR peptides are produced in certain leguminous plants and play an important role in the mutualistic, nitrogen-fixing symbiosis of the plants with bacteria from the Rhizobiaceae family (rhizobia), resulting in the formation of root nodules where plant cells contain thousands of intracellular endosymbionts. NCR peptides possess anti-microbial properties that direct an irreversible, terminal differentiation process of bacteria, e.g., to permeabilize the bacterial membrane, disrupt cell division, or inhibit protein synthesis. For example, in Medicago truncatula nodule cells infected with Sinorhizobium meliloti, hundreds of NCR peptides are produced which direct irreversible differentiation of the bacteria into large polyploid nitrogen-fixing bacteroids.). Non-limiting examples of NCR peptides are listed in Table 7.
  • TABLE 7
    Examples of NCR Peptides
    NAME Peptide sequence Producer
    >gi|152218086|gb|ABS31477.1|NCR 340 MTKIVVFIYVVILLLTIFHVSAKKKRYI Medicago truncatula
    ECETHEDCSQVFMPPFVMRCVIHE
    CKIFNGEHLRY
    (SEQ ID NO: 94)
    >gi|152218084|gb|ABS31476.1|NCR 339 MAKIMKFVYNMIPFLSIFIITLQVNVV Medicago truncatula
    VCEIDADCPQICMPPYEVRCVNHRC
    GWVNTDDSLFLTQEFTRSKQYIIS
    (SEQ ID NO: 95)
    >gi|152218082|gb|ABS31476.1|NCR 338 MYKVVESIFIRYMHRKPNMTKFFKF Medicago truncatula
    VYTMFILISLFLVVTNANAHNCTDISD
    CSSNHCSYEGVSLCMNGQCICIYE
    (SEQ ID NO: 96)
    >gi|152218080|gb|ABS31474.1|NCR 337 MVETLRLFYIMILFVSLCLVVVDGES Medicago truncatula
    KLEQTCSEDFECYIKNPHVPFGHLR
    CFEGFCQQLNGPA
    (SEQ ID NO: 97)
    >gi|152218078|gb|ABS31473.1|NCR 336 MAKIVNFVYSMIVFLFLFLVATKAAR Medicago truncatula
    GYLCVTDSHCPPHMCPPGMEPRCV
    RRMCKCLPIGWRKYFVP
    (SEQ ID NO: 98)
    >gi|152218076|gb|ABS31472.1|NCR 335 MQIGKNMVETPKLDYVIIFFFLYFFF Medicago truncatula
    RQMIILRLNTTFRPLNFKMLRFWGQ
    NRNIMKHRGQKVHFSLILSDCKTNK
    DCPKLRRANVRCRKSYCVPI
    (SEQ ID NO: 99)
    >gi|152218074|gb|ABS31471.1|NCR 334 MLRLYLVSYFLLKRTLLVSYFSYFST Medicago truncatula
    YIIECKTDNDCPISQLKIYAWKCVKN
    GCHLFDVIPMMYE
    (SEQ ID NO: 100)
    >gi|152218072|gb|ABS31470.1|NCR 333 MAEILKFVYIVILFVSLLLIVVASEREC Medicago truncatula
    VTDDDCEKLYPTNEYRMMCDSGYC
    MNLLNGKIIYLLCLKKKKFLIIISVLL
    (SEQ ID NO: 101)
    >gi|152218070|gb|ABS31469.1|NCR 332 MAEIIKFVYIMILCVSLLLIEVAGEECV Medicago truncatula
    TDADCDKLYPDIRKPLMCSIGECYSL
    YKGKFSLSIISKTSFSLMVYNVVTLVI
    CLRLAYISLLLKFL
    (SEQ ID NO: 102)
    >gi|152218068|gb|ABS31468.1|NCR 331 MAEILKDFYAMNLFIFLIILPAKIRGET Medicago truncatula
    LSLTHPKCHHIMLPSLFITEVFQRVT
    DDGCPKPVNHLRVVKCIEHICEYGY
    NYRPDFASQIPESTKMPRKRE
    (SEQ ID NO: 103)
    >gi|152218066|gb|ABS31467.1|NCR 330 MVEILKNFYAMNLFIFLIILAVKIRGAH Medicago truncatula
    FPCVTDDDCPKPVNKLRVIKCIDHIC
    QYARNLPDFASEISESTKMPCKGE
    (SEQ ID NO: 104)
    >gi|152218064|gb|ABS31466.1|NCR 329 MFHAQAENMAKVSNFVCIMILFLALF Medicago truncatula
    FITMNDAARFECREDSHCVTRIKCV
    LPRKPECRNYACGCYDSNKYR
    (SEQ ID NO: 105)
    >gi|152218062|gb|ABS31465.1|NCR 328 MQMRQNMATILNFVFVIILFISLLLVV Medicago truncatula
    TKGYREPFSSFTEGPTCKEDIDCPSI
    SCVNPQVPKCIMFECHCKYIPTTLK
    (SEQ ID NO: 106)
    >gi|152218060|gb|ABS31464.1|NCR 327 MATILMYVYITILFISILTVLTEGLYEPL Medicago truncatula
    YNFRRDPDCRRNIDCPSYLCVAPKV
    PRCIMFECHCKDIPSDH
    (SEQ ID NO: 107)
    >gi|152218058|gb|ABS31463.1|NCR 326 MTTSLKFVYVAILFLSLLLVVMGGIR Medicago truncatula
    RFECRQDSDCPSYFCEKLTVPKCF
    WSKCYCK
    (SEQ ID NO: 108)
    >gi|152218056|gb|ABS31462.1|NCR 325 MTTSLKFVYVAILFLSLLLVVMGGIR Medicago truncatula
    KKECRQDSDCPSYFCEKLTIAKCIHS
    TCLCK
    (SEQ ID NO: 109)
    >gi|152218054|gb|ABS31461.1|NCR 324 MQIGKNMVETPKLVYFIILFLSIFLCIT Medicago truncatula
    VSNSSFSQIFNSACKTDKDCPKFGR
    VNVRCRKGNCVPI
    (SEQ ID NO: 110)
    >gi|152218046|gb|ABS31457.1|NCR 320 MTAILKKFINAVFLFIVLFLATTNVED Medicago truncatula
    FVGGSNDECVYPDVFQCINNICKCV
    SHHRT
    (SEQ ID NO: 111)
    >gi|152218044|gb|ABS31456.1|NCR 319 MQKRKNMAQIIFYVYALIILFSPFLAA Medicago truncatula
    RLVFVNPEKPCVTDADCDRYRHES
    AIYSDMFCKDGYCFIDYHHDPYP
    (SEQ ID NO: 112)
    >gi|152218042|gb|ABS31455.1|NCR 318 MQMRKNMAQILFYVYALLILFTPFLV Medicago truncatula
    ARIMVVNPNNPCVTDADCQRYRHK
    LATRMICNQGFCLMDFTHDPYAPSLP
    (SEQ ID NO: 113)
    >gi|152218040|gb|ABS31454.1|NCR 317 MNHISKFVYALIIFLSIYLVVLDGLPIS Medicago truncatula
    CKDHFECRRKINILRCIYRQEKPMCI
    NSICTCVKLL
    (SEQ ID NO: 114)
    >gi|152218038|gb|ABS31453.1|NCR 316 MQREKNMAKIFEFVYAMIIFILLFLVE Medicago truncatula
    KNVVAYLKFECKTDDDCQKSLLKTY
    VWKCVKNECYFFAKK
    (SEQ ID NO: 115)
    >gi|152218036|gb|ABS31452.1|NCR 315 MAGIIKFVHVLIIFLSLFHVVKNDDGS Medicago truncatula
    FCFKDSDCPDEMCPSPLKEMCYFL
    QCKCGVDTIA
    (SEQ ID NO: 116)
    >gi|152218034|gb|ABS31451.1|NCR 314 MANTHKLVSMILFIFLFLASNNVEGY Medicago truncatula
    VNCETDADCPPSTRVKRFKCVKGE
    CRWTRMSYA
    (SEQ ID NO: 117)
    >gi|152218032|gb|ABS31450.1|NCR 313 MQRRKKKAQVVMFVHDLIICIYLFIVI Medicago truncatula
    TTRKTDIRCRFYYDCPRLEYHFCECI
    EDFCAYIRLN
    (SEQ ID NO: 118)
    >gi|152218030|gb|ABS31449.1|NCR 312 MAKVYMFVYALIIFVSPFLLATFRTRL Medicago truncatula
    PCEKDDDCPEAFLPPVMKCVNRFC
    QYEILE
    (SEQ ID NO: 119)
    >gi|152218028|gb|ABS31448.1|NCR 310 MIKQFSVCYIQMRRNMTTILKFPYIM Medicago truncatula
    VICLLLLHVAAYEDFEKEIFDCKKDG
    DCDHMCVTPGIPKCTGYVCFCFENL
    (SEQ ID NO: 120)
    >gi|152218026|gb|ABS31447.1|NCR 309 MQRSRNMTTIFKFAYIMIICVFLLNIA Medicago truncatula
    AQEIENGIHPCKKNEDCNHMCVMP
    GLPWCHENNLCFCYENAYGNTR
    (SEQ ID NO: 121)
    >gi|152218024|gb|ABS31446.1|NCR 304 MTIIIKFVNVLIIFLSLFHVAKNDDNKL Medicago truncatula
    LLSFIEEGFLCFKDSDCPYNMCPSP
    LKEMCYFIKCVCGVYGPIRERRLYQ
    SHNPMIQ
    (SEQ ID NO: 122)
    >gi|152218022|gb|ABS31445.1|NCR 303 MRKNMTKILMIGYALMIFIFLSIAVSIT Medicago truncatula
    GNLARASRKKPVDVIPCIYDHDCPR
    KLYFLERCVGRVCKYL
    (SEQ ID NO: 123)
    >gi|152218020|gb|ABS31444.1|NCR 301 MAHKLVYAITLFIFLFLIANNIEDDIFCI Medicago truncatula
    TDNDCPPNTLVQRYRCINGKCNLSF
    VSYG
    (SEQ ID NO: 124)
    >gi|152218018|gb|ABS31443.1|NCR 300 MDETLKFVYILILFVSLCLVVADGVK Medicago truncatula
    NINRECTQTSDCYKKYPFIPWGKVR
    CVKGRCRLDM
    (SEQ ID NO: 125)
    >gi|152218016|gb|ABS31442.1|NCR 290 MAKIIKFVYVLAIFFSLFLVAKNVNG Medicago truncatula
    WTCVEDSDCPANICQPPMQRMCFY
    GECACVRSKFCT
    (SEQ ID NO: 126)
    >gi|152218014|gb|ABS31441.1|NCR 289 MVKIIKFVYFMTLFLSMLLVTTKEDG Medicago truncatula
    SVECIANIDCPQIFMLPFVMRCINFR
    CQIVNSEDT
    (SEQ ID NO: 127)
    >gi|152218012|gb|ABS31440.1|NCR 286 MDEILKFVYTLIIFFSLFFAANNVDANI Medicago truncatula
    MNCQSTFDCPRDMCSHIRDVICIFK
    KCKCAGGRYMPQVP
    (SEQ ID NO: 128)
    >gi|152218008|gb|ABS31438.1|NCR 278 MQRRKNMANNHMLIYAMIICLFPYL Medicago truncatula
    VVTFKTAITCDCNEDCLNFFTPLDNL
    KCIDNVCEVFM
    (SEQ ID NO: 129)
    >gi|152218006|gb|ABS31437.1|NCR 266 MVNILKFIYVIIFFILMFFVLIDVDGHV Medicago truncatula
    LVECIENRDCEKGMCKFPFIVRCLM
    DQCKCVRIHNLI
    (SEQ ID NO: 130)
    >gi|152218004|gb|ABS31436.1|NCR 265 MIIQFSIYYMQRRKLNMVEILKFSHA Medicago truncatula
    LIIFLFLSALVTNANIFFCSTDEDCTW
    NLCRQPWVQKCRLHMCSCEKN
    (SEQ ID NO: 131)
    >gi|152218002|gb|ABS31435.1|NCR 263 MDEVFKFVYVMIIFPFLILDVATNAEK Medicago truncatula
    IRRCFNDAHCPPDMCTLGVIPKCSR
    FTICIC
    (SEQ ID NO: 132)
    >gi|152218000|gb|ABS31434.1|NCR 244 MHRKPNMTKFFKFVYTMFILISLFLV Medicago truncatula
    VTNANANNCTDTSDCSSNHCSYEG
    VSLCMNGQCICIYE
    (SEQ ID NO: 133)
    >gi|152217998|gb|ABS31433.1|NCR 239 MQMKKMATILKFVYLIILLIYPLLVVTE Medicago truncatula
    ESHYMKFSICKDDTDCPTLFCVLPN
    VPKCIGSKCHCKLMVN
    (SEQ ID NO: 134)
    >gi|152217996|gb|ABS31432.1|NCR 237 MVETLRLFYIMILFVSLYLVVVDGVS Medicago truncatula
    KLAQSCSEDFECYIKNPHAPFGQLR
    CFEGYCQRLDKPT
    (SEQ ID NO: 135)
    >gi|152217994|gb|ABS31431.1|NCR 228 MTTFLKVAYIMIICVFVLHLAAQVDS Medicago truncatula
    QKRLHGCKEDRDCDNICSVHAVTK
    CIGNMCRCLANVK
    (SEQ ID NO: 136)
    >gi|152217992|gb|ABS31430.1|NCR 224 MRINRTPAIFKFVYTIIIYLFLLRVVAK Medicago truncatula
    DLPFNICEKDEDCLEFCAHDKVAKC
    MLNICFCF
    (SEQ ID NO: 137)
    >gi|152217990|gb|ABS31429.1|NCR 221 MAEILKILYVFIIFLSLILAVISQHPFTP Medicago truncatula
    CETNADCKCRNHKRPDCLWHKCYCY
    (SEQ ID NO: 138)
    >gi|152217988|gb|ABS31428.1|NCR 217 MRKSMATILKFVYVIMLFIYSLFVIES Medicago truncatula
    FGHRFLIYNNCKNDTECPNDCGPHE
    QAKCILYACYCVE
    (SEQ ID NO: 139)
    >gi|152217986|gb|ABS31427.1|NCR 209 MNTILKFIFVVFLFLSIFLSAGNSKSY Medicago truncatula
    GPCTTLQDCETHNWFEVCSCIDFEC
    KCWSLL
    (SEQ ID NO: 140)
    >gi|152217984|gb|ABS31426.1|NCR 206 MAEIIKFVYIMILCVSLLLIAEASGKEC Medicago truncatula
    VTDADCENLYPGNKKPMFCNNTGY
    CMSLYKEPSRYM
    (SEQ ID NO: 141)
    >gi|152217982|gb|ABS31425.1|NCR 201 MAKIIKFVYIMILCVSLLLIVEAGGKEC Medicago truncatula
    VTDVDCEKIYPGNKKPLICSTGYCYS
    LYEEPPRYHK
    (SEQ ID NO: 142)
    >gi|152217980|gb|ABS31424.1|NCR 200 MAKVTKFGYIIIHFLSLFFLAMNVAG Medicago truncatula
    GRECHANSHCVGKITCVLPQKPEC
    WNYACVCYDSNKYR
    (SEQ ID NO: 143)
    >gi|152217978|gb|ABS31423.1|NCR 192 MAKIFNYVYALIMFLSLFLMGTSGMK Medicago truncatula
    NGCKHTGHCPRKMCGAKTTKCRN
    NKCQCV
    (SEQ ID NO: 144)
    >gi|152217976|gb|ABS31422.1|NCR 189 MTEILKFVCVMIIFISSFIVSKSLNGG Medicago truncatula
    GKDKCFRDSDCPKHMCPSSLVAKCI
    NRLCRCRRPELQVQLNP
    (SEQ ID NO: 145)
    >gi|152217974|gb|ABS31421.1|NCR 187 MAHIIMFVYALIYALIIFSSLFVRDGIP Medicago truncatula
    CLSDDECPEMSHYSFKCNNKICEYD
    LGEMSDDDYYLEMSRE
    (SEQ ID NO: 146)
    >gi|152217972|gb|ABS31420.1|NCR 181 MYREKNMAKTLKFVYVIVLFLSLFLA Medicago truncatula
    AKNIDGRVSYNSFIALPVCQTAADC
    PEGTRGRTYKCINNKCRYPKLLKPIQ
    (SEQ ID NO: 147)
    >gi|152217970|gb|ABS31419.1|NCR 176 MAHIFNYVYALLVFLSLFLMVTNGIHI Medicago truncatula
    GCDKDRDCPKQMCHLNQTPKCLKN
    ICKCV
    (SEQ ID NO: 148)
    >gi|152217968|gb|ABS31418.1|NCR 175 MAEILKCFYTMNLFIFLIILPAKIREHI Medicago truncatula
    QCVIDDDCPKSLNKLLIIKCINHVCQY
    VGNLPDFASQIPKSTKMPYKGE
    (SEQ ID NO: 149)
    >gi|152217966|gb|ABS31417.1|NCR 173 MAYISRIFYVLIIFLSLFFVVINGVKSL Medicago truncatula
    LLIKVRSFIPCQRSDDCPRNLCVDQII
    PTCVWAKCKCKNYND
    (SEQ ID NO: 150)
    >gi|152217964|gb|ABS31416.1|NCR 172 MANVTKFVYIAIYFLSLFFIAKNDATA Medicago truncatula
    TFCHDDSHCVTKIKCVLPRTPQCRN
    EACGCYHSNKFR
    (SEQ ID NO: 151)
    >gi|152217962|gb|ABS31415.1|NCR 171 MGEIMKFVYVMIIYLFMFNVATGSEF Medicago truncatula
    IFTKKLTSCDSSKDCRSFLCYSPKFP
    VCKRGICECI
    (SEQ ID NO: 152)
    >gi|152217960|gb|ABS31414.1|NCR 169 MGEMFKFIYTFILFVHLFLVVIFEDIG Medicago truncatula
    HIKYCGIVDDCYKSKKPLFKIWKCVE
    NVCVLWYK
    (SEQ ID NO: 153)
    >gi|152217958|gb|ABS31413.1|NCR 165 MARTLKFVYSMILFLSLFLVANGLKIF Medicago truncatula
    CIDVADCPKDLYPLLYKCIYNKCIVFT
    RIPFPFDWI
    (SEQ ID NO: 154)
    >gi|152217956|gb|ABS31412.1|NCR 159 MANITKFVYIAILFLSLFFIGMNDAAIL Medicago truncatula
    ECREDSHCVTKIKCVLPRKPECRNN
    ACTCYKGGFSFHH
    (SEQ ID NO: 155)
    >gi|152217954|gb|ABS31411.1|NCR 147 MQRVKKMSETLKFVYVLILFISIFHVV Medicago truncatula
    IVCDSIYFPVSRPCITDKDCPNMKHY
    KAKCRKGFCISSRVR
    (SEQ ID NO: 156)
    >gi|152217952|gb|ABS31410.1|NCR 146 MQIRKIMSGVLKFVYAIILFLFLFLVA Medicago truncatula
    REVGGLETIECETDGDCPRSMIKM
    WNKNYRHKCIDGKCEWIKKLP
    (SEQ ID NO: 157)
    >gi|152217950|gb|ABS31409.1|NCR 145 MFVYDLILFISLILVVTGINAEADTSC Medicago truncatula
    HSFDDCPWVAHHYRECIEGLCAYRILY
    (SEQ ID NO: 158)
    >gi|152217948|gb|ABS31408.1|NCR 144 MQRRKKSMAKMLKFFFAIILLLSLFL Medicago truncatula
    VATEVGGAYIECEVDDDCPKPMKN
    SHPDTYYKCVKHRCQWAWK
    (SEQ ID NO: 159)
    >gi|152217946|gb|ABS31407.1|NCR 140 MFVYTLIIFLFPSHVITNKIAIYCVSDD Medicago truncatula
    DCLKTFTPLDLKCVDNVCEFNLRCK
    GKCGERDEKFVFLKALKKMDQKLVL
    EEQGNAREVKIPKKLLFDRIQVPTPA
    TKDQVEEDDYDDDDEEEEEEEDDV
    DMWFHLPDVVCH
    (SEQ ID NO: 160)
    >gi|152217944|gb|ABS31406.1|NCR 138 MAKFSMFVYALINFLSLFLVETAITNI Medicago truncatula
    RCVSDDDCPKVIKPLVMKCIGNYCY
    FFMIYEGP
    (SEQ ID NO: 161)
    >gi|152217942|gb|ABS31405.1|NCR 136 MAHKFVYAIILFIFLFLVAKNVKGYVV Medicago truncatula
    CRTVDDCPPDTRDLRYRCLNGKCK
    SYRLSYG
    (SEQ ID NO: 162)
    >gi|152217940|gb|ABS31404.1|NCR 129 MQRKKNMGQILIFVFALINFLSPILVE Medicago truncatula
    MTTTTIPCTFIDDCPKMPLVVKCIDN
    FCNYFEIK
    (SEQ ID NO: 163)
    >gi|152217938|gb|ABS31403.1|NCR 128 MAQTLMLVYALIIFTSLFLVVISRQTD Medicago truncatula
    IPCKSDDACPRVSSHHIECVKGFCT
    YWKLD
    (SEQ ID NO: 164)
    >gi|152217936|gb|ABS31402.1|NCR 127 MLRRKNTVQILMFVSALLIYIFLFLVIT Medicago truncatula
    SSANIPCNSDSDCPWKIYYTYRCND
    GFCVYKSIDPSTIPQYMTDLIFPR
    (SEQ ID NO: 165)
    >gi|152217934|gb|ABS31401.1|NCR 122 MAVILKFVYIMIIFLFLLYVVNGTRCN Medicago truncatula
    RDEDCPFICTGPQIPKCVSHICFCLS
    SGKEAY
    (SEQ ID NO: 166)
    >gi|152217932|gb|ABS31400.1|NCR 121 MDAILKFIYAMFLFLFLFVTTRNVEAL Medicago truncatula
    FECNRDFVCGNDDECVYPYAVQCI
    HRYCKCLKSRN
    (SEQ ID NO: 167)
    >gi|152217930|gb|ABS31399.1|NCR 119 MQIGRKKMGETPKLVYVIILFLSIFLC Medicago truncatula
    TNSSFSQMINFRGCKRDKDCPQFR
    GVNIRCRSGFCTPIDS
    (SEQ ID NO: 168)
    >gi|152217928|gb|ABS31398.1|NCR 118 MQMRKNMAQILFYVYALLILFSPFLV Medicago truncatula
    ARIMVVNPNNPCVTDADCQRYRHKL
    ATRMVCNIGFCLMDFTHDPYAPSLP
    (SEQ ID NO: 169)
    >gi|152217926|gb|ABS31397.1|NCR 111 MYVYYIQMGKNMAQRFMFIYALIIFL Medicago truncatula
    SQFFVVINTSDIPNNSNRNSPKEDVF
    CNSNDDCPTILYYVSKCVYNFCEYW
    (SEQ ID NO: 170)
    >gi|152217924|gb|ABS31396.1|NCR 103 MAKIVNFVYSMIIFVSLFLVATKGGS Medicago truncatula
    KPFLTRPYPCNTGSDCPQNMCPPG
    YKPGCEDGYCNHCYKRW
    (SEQ ID NO: 171)
    >gi|152217922|gb|ABS31395.1|NCR 101 MVRTLKFVYVIILILSLFLVAKGGGKK Medicago truncatula
    IYCENAASCPRLMYPLVYKCLDNKC
    VKFMMKSRFV
    (SEQ ID NO: 172)
    >gi|152217920|gb|ABS31394.1|NCR 96 MARTLKFVYAVILFLSLFLVAKGDDV Medicago truncatula
    KIKCVVAANCPDLMYPLVYKCLNGIC
    VQFTLTFPFV
    (SEQ ID NO: 173)
    >gi|152217918|gb|ABS31393.1|NCR 94 MSNTLMFVITFIVLVTLFLGPKNVYA Medicago truncatula
    FQPCVTTADCMKTLKTDENIWYECI
    NDFCIPFPIPKGRK
    (SEQ ID NO: 174)
    >gi|152217916|gb|ABS31392.1|NCR 93 MKRVVNMAKIVKYVYVIIIFLSLFLVA Medicago truncatula
    TKIEGYYYKCFKDSDCVKLLCRIPLR
    PKCMYRHICKCKVVLTQNNYVLT
    (SEQ ID NO: 175)
    >gi|152217914|gb|ABS31391.1|NCR 90 MKRGKNMSKILKFIYATLVLYLFLVV Medicago truncatula
    TKASDDECKIDGDCPISWQKFHTYK
    CINQKCKWVLRFHEY
    (SEQ ID NO: 176)
    >gi|152217912|gb|ABS31390.1|NCR 88 MAKTLNFMFALILFISLFLVSKNVAIDI Medicago truncatula
    FVCQTDADCPKSELSMYTWKCIDN
    ECNLFKVMQQMV
    (SEQ ID NO: 177)
    >gi|152217910|gb|ABS31389.1|NCR 86 MANTHKLVSMILFIFLFLVANNVEGY Medicago truncatula
    VNCETDADCPPSTRVKRFKCVKGE
    CRWTRMSYA
    (SEQ ID NO: 178)
    >gi|152217908|gb|ABS31388.1|NCR 77 MAHFLMFVYALITCLSLFLVEMGHLS Medicago truncatula
    IHCVSVDDCPKVEKPITMKCINNYCK
    YFVDHKL
    (SEQ ID NO: 179)
    >gi|152217906|gb|ABS31387.1|NCR 76 MNQIPMFGYTLIIFFSLFPVITNGDRI Medicago truncatula
    PCVTNGDCPVMRLPLYMRCITYSCE
    LFFDGPNLCAVERI
    (SEQ ID NO: 180)
    >gi|152217904|gb|ABS31386.1|NCR 74 MRKDMARISLFVYALIIFFSLFFVLTN Medicago truncatula
    GELEIRCVSDADCPLFPLPLHNRCID
    DVCHLFTS
    (SEQ ID NO: 181)
    >gi|152217902|gb|ABS31385.1|NCR 68 MAQILMFVYFLIIFLSLFLVESIKIFTE Medicago truncatula
    HRCRTDADCPARELPEYLKCQGGM
    CRLLIKKD
    (SEQ ID NO: 182)
    >gi|152217900|gb|ABS31384.1|NCR 65 MARVISLFYALIIFLFLFLVATNGDLS Medicago truncatula
    PCLRSGDCSKDECPSHLVPKCIGLT
    CYCI
    (SEQ ID NO: 183)
    >gi|152217898|gb|ABS31383.1|NCR 62 MQRRKNMAQILLFAYVFIISISLFLVV Medicago truncatula
    TNGVKIPCVKDTDCPTLPCPLYSKC
    VDGFCKMLSI
    (SEQ ID NO: 184)
    >gi|152217896|gb|ABS31382.1|NCR 57 MNHISKFVYALIIFLSVYLVVLDGRPV Medicago truncatula
    SCKDHYDCRRKVKIVGCIFPQEKPM
    CINSMCTCIREIVP
    (SEQ ID NO: 185)
    >gi|152217894|gb|ABS31381.1|NCR 56 MKSQNHAKFISFYKNDLFKIFQNND Medicago truncatula
    SHFKVFFALIIFLYTYLHVTNGVFVSC
    NSHIHCRVNNHKIGCNIPEQYLLCVN
    LFCLWLDY
    (SEQ ID NO: 186)
    >gi|152217892|gb|ABS31380.1|NCR 54 MTYISKVVYALIIFLSIYVGVNDCMLV Medicago truncatula
    TCEDHFDCRQNVQQVGCSFREIPQ
    CINSICKCMKG
    (SEQ ID NO: 187)
    >gi|152217890|gb|ABS31379.1|NCR 53 MTHISKFVFALIIFLSIYVGVNDCKRIP Medicago truncatula
    CKDNNDCNNNWQLLACRFEREVPR
    CINSICKCMPM
    (SEQ ID NO: 188)
    >gi|152217888|gb|ABS31378.1|NCR 43 MVQTPKLVYVIVLLLSIFLGMTICNSS Medicago truncatula
    FSHFFEGACKSDKDCPKLHRSNVR
    CRKGQCVQI
    (SEQ ID NO: 189)
    >gi|152217886|gb|ABS31377.1|NCR 28 MTKILMLFYAMIVFHSIFLVASYTDEC Medicago truncatula
    STDADCEYILCLFPIIKRCIHNHCKCV
    PMGSIEPMSTIPNGVHKFHIINN
    (SEQ ID NO: 190)
    >gi|152217884|gb|ABS31376.1|NCR 26 MAKTLNFVCAMILFISLFLVSKNVAL Medicago truncatula
    YIIECKTDADCPISKLNMYNWRCIKS
    SCHLYKVIQFMV
    (SEQ ID NO: 191)
    >gi|152217882|gb|ABS31375.1|NCR 24 MQKEKNMAKTFEFVYAMIIFILLFLVE Medicago truncatula
    NNFAAYIIECQTDDDCPKSQLEMFA
    WKCVKNGCHLFGMYEDDDDP
    (SEQ ID NO: 192)
    >gi|152217880|gb|ABS31374.1|NCR 21 MAATRKFIYVLSHFLFLFLVTKITDAR Medicago truncatula
    VCKSDKDCKDIIIYRYILKCRNGECV
    KIKI
    (SEQ ID NO: 193)
    >gi|152217878|gb|ABS31373.1|NCR 20 MQRLDNMAKNVKFIYVIILLLFIFLVII Medicago truncatula
    VCDSAFVPNSGPCTTDKDCKQVKG
    YIARCRKGYCMQSVKRTWSSYSR
    (SEQ ID NO: 194)
    >gi|152217876|gb|ABS31372.1|NCR 19 MKFIYIMILFLSLFLVQFLTCKGLTVP Medicago truncatula
    CENPTTCPEDFCTPPMITRCINFICL
    CDGPEYAEPEYDGPEPEYDHKGDF
    LSVKPKIINENMMMRERHMMKEIEV
    (SEQ ID NO: 195)
    >gi|152217874|gb|ABS31371.1|NCR 12 MAQFLMFIYVLIIFLYLFYVEAAMFEL Medicago truncatula
    TKSTIRCVTDADCPNVVKPLKPKCV
    DGFCEYT
    (SEQ ID NO: 196)
    >gi|152217872|gb|ABS31370.1|NCR 10 MKMRIHMAQIIMFFYALIIFLSPFLVD Medicago truncatula
    RRSFPSSFVSPKSYTSEIPCKATRD
    CPYELYYETKCVDSLCTY
    (SEQ ID NO: 197)
  • Any NCR peptide known in the art is suitable for use in the methods or compositions described herein. NCR peptide-producing plants include but are not limited to Pisum sativum (pea), Astragalus sinicus (IRLC legumes), Phaseolus vulgaris (bean), Vigna unguiculata (cowpea), Medicago truncatula (barrelclover), and Lotus japonicus. For example, over 600 potential NCR peptides are predicted from the M. truncatula genome sequence and almost 150 different NCR peptides have been detected in cells isolated from root nodules by mass spectrometry.
  • The NCR peptides described herein may be mature or immature NCR peptides. Immature NCR peptides have a C-terminal signal peptide that is required for translocation into the endoplasmic reticulum and cleaved after translocation. The N-terminus of a NCR peptide includes a signal peptide, which may be cleavable, for targeting to a secretory pathway. NCR peptides are generally small peptides with disulfide bridges that stabilize their structure. Mature NCR peptides have a length in the range of about 20 to about 60 amino acids, about 25 to about 55 amino acids, about 30 to about 50 amino acids, about 35 to about 45 amino acids, or any range therebetween. NCR peptides may include a conserved sequence of cysteine residues with the rest of the peptide sequence highly variable. NCR peptides generally have about four or eight cysteines.
  • NCR peptides may be anionic, neutral, or cationic. In some instances, synthetic cationic NCR peptides having a pl greater than about eight possess antimicrobial activities. For example, NCR247 (pl=10.15) (RNGCIVDPRCPYQQCRRPLYCRRR; SEQ ID NO: 198) and NCR335 (pl=11.22) (MAQFLLFVYSLIIFLSLFFGEAAFERTETRMLTIPCTSDDNCPKVISPCHTKCFDGFCGWYIEGSYEGP; SEQ ID NO: 199) are both effective against gram-negative and gram-positive bacteria as well as fungi. In some instances, neutral and/or anionic NCR peptides, such as NCR001, do not possess antimicrobial activities at a pl greater than about 8.
  • In some instances, the NCR peptide is effective to kill bacteria. In some instances, the NCR peptide is effective to kill S. meliloti, Xenorhabdus spp, Photorhabdus spp, Candidatus spp, Buchnera spp, Blattabacterium spp, Baumania spp, Wigglesworthia spp, Wolbachia spp, Rickettsia spp, Orientia spp, Sodalis spp, Burkholderia spp, Cupriavidus spp, Frankia spp, Snirhizobium spp, Streptococcus spp, Wolinella spp, Xylella spp, Erwinia spp, Agrobacterium spp, Bacillus spp, Paenibacillus spp, Streptomyces spp, Micrococcus spp, Corynebacterium spp, Acetobacter spp, Cyanobacteria spp, Salmonella spp, Rhodococcus spp, Pseudomonas spp, Lactobacillus spp, Enterococcus spp, Alcaligenes spp, Klebsiella spp, Paenibacillus spp, Arthrobacter spp, Corynebacterium spp, Brevibacterium spp, Thermus spp, Pseudomonas spp, Clostridium spp, or Escherichia spp.
  • In some instances, the NCR peptide is a functionally active variant of a NCR peptide described herein. In some instances, the variant of the NCR peptide has at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a NCR peptide described herein or naturally derived NCR peptide.
  • In some instances, the NCR peptide may be bioengineered to modulate its bioactivity, e.g., increase or decrease or regulate, or to specify a target microorganism. In some instances, the NCR peptide is produced by the translational machinery (e.g. a ribosome, etc.) of a cell. In some instances, the NCR peptide is chemically synthesized. In some instances, the NCR peptide is derived from a polypeptide precursor. The polypeptide precursor can undergo cleavage (for example, processing by a protease) to yield the NCR peptide itself. As such, in some instances, the NCR peptide is produced from a precursor polypeptide. In some instances, the NCR peptide includes a polypeptide that has undergone post-translational modifications, for example, cleavage, or the addition of one or more functional groups. The NCR peptide described herein may be formulated in a composition for any of the uses described herein. The compositions disclosed herein may include any number or type of NCR peptides, such as at least about any one of 1 NCR peptide, 2, 3, 4, 5, 10, 15, 20, 30, 40, 50, 100, or more NCR peptides. A suitable concentration of each NCR peptide in the composition depends on factors such as efficacy, stability of the NCR peptide, number of distinct NCR peptide, the formulation, and methods of application of the composition. In some instances, each NCR peptide in a liquid composition is from about 0.1 ng/mL to about 100 mg/mL. In some instances, each NCR peptide in a solid composition is from about 0.1 ng/g to about 100 mg/g. In some instances, wherein the composition includes at least two types of NCR peptides, the concentration of each type of NCR peptide may be the same or different.
  • A modulating agent including a NCR peptide as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of NCR peptide concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of NCR peptide concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of NCR peptide concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • (e) Bacteriocyte Regulatory Peptides
  • The modulating agent described herein may include a bacteriocyte regulatory peptide (BRP). BRPs are peptides expressed in the bacteriocytes of insects. These genes are expressed first at a developmental time point coincident with the incorporation of symbionts and their bacteriocyte-specific expression is maintained throughout the insect's life. In some instances, the BRP has a hydrophobic amino terminal domain, which is predicted to be a signal peptide. In addition, some BRPs have a cysteine-rich domain. In some instances, the bacteriocyte regulatory peptide is a bacteriocyte-specific cysteine rich (BCR) protein. Bacteriocyte regulatory peptides have a length between about 40 and 150 amino acids. In some instances, the bacteriocyte regulatory peptide has a length in the range of about 45 to about 145, about 50 to about 140, about 55 to about 135, about 60 to about 130, about 65 to about 125, about 70 to about 120, about 75 to about 115, about 80 to about 110, about 85 to about 105, or any range therebetween. Non-limiting examples of BRPs and their activities are listed in Table 8.
  • TABLE 8
    Examples of Bacteriocyte Regulatory Peptides
    Name Peptide Sequence
    Bacteriocyte-specific MKLLHGFLIIMLTMHLSIQYAYG
    cysteine rich GPFLTKYLCDRVCHKLCGDEFVC
    proteins BCR family, SCIQYKSLKGLWFPHCPTGKASV
    peptide BCR1 VLHNFLTSP
    (SEQ ID NO: 200)
    Bacteriocyte-specific MKLLYGFLIIMLTIHLSVQYFES
    cysteine rich PFETKYNCDTHCNKLCGKIDHCS
    proteins BCR family, CIQYHSMEGLWFPHCRTGSAAQM
    peptide BCR2 LHDFLSNP
    (SEQ ID NO: 201)
    Bacteriocyte-specific MSVRKNVLPTMFVVLLIMSPVTP
    cysteine rich TSVFISAVCYSGCGSLALVCFVS
    proteins BCR family, NGITNGLDYFKSSAPLSTSETSC
    peptide BCR3 GEAFDTCTDHCLANFKF 
    (SEQ ID NO: 202)
    Bacteriocyte-specific MRLLYGFLIIMLTIYLSVQDFDP
    cysteine rich TEFKGPFPTIEICSKYCAVVCNY
    proteins BCR family, TSRPCYCVEAAKERDQWFPYCYD
    peptide BCR4 (SEQ ID NO: 203)
    Bacteriocyte-specific MRLLYGFLIIMLTIHLSVQDIDP
    cysteine rich NTLRGPYPTKEICSKYCEYNVVC
    proteins BCR family, GASLPCICVQDARQLDHWFACCY
    peptide BCR5 DGGPEMLM
    (SEQ ID NO: 204)
    Secreted proteins MKLFVVVVLVAVGIMFVFASDTA
    SP family, peptide AAPTDYEDTNDMISLSSLVGDNS
    SP1 PYVRVSSADSGGSSKTSSKNPIL
    GLLKSVIKLLTKIFGTYSDAAPA
    MPPIPPALRKNRGMLA
    (SEQ ID NO: 205)
    Secreted proteins MVACKVILAVAVVFVAAVQGRPG
    SP family, peptide GEPEWAAPIFAELKSVSDNITNL
    SP2 VGLDNAGEYATAAKNNLNAFAES
    LKTEAAVFSKSFEGKASASDVFK
    ESTKNFQAVVDTYIKNLPKDLTL
    KDFTEKSEQALKYMVEHGTEITK
    KAQGNTETEKEIKEFFKKQIENL
    IGQGKALQAKIAEAKKA 
    (SEQ ID NO: 206)
    Secreted proteins MKTSSSKVFASCVAIVCLASVAN
    SP family, peptide ALPVQKSVAATTENPIVEKHGCR
    SP3 AHKNLVRQNVVDLKTYDSMLITN
    EVVQKQSNEVQSSEQSNEGQNSE
    QSNEGQNSEQSNEVQSSEHSNEG
    QNSKQSNEGQNSEQSNEVQSSEH
    SNEGQNSEQSNEVQSSEHSNEGQ
    NSKQSNEGQNSKQSNEVQSSEHW
    NEGQNSKQSNEDQNSEQSNEGQN
    SKQSNEGQNSKQSNEDQNSEQSN
    EGQNSKQSNEVQSSEQSNEGQNS
    KQSNEGQSSEQSNEGQNSKQSNE
    VQSPEEHYDLPDPESSYESEETK
    GSHESGDDSEHR 
    (SEQ ID NO: 207)
    Secreted proteins MKTIILGLCLFGALFWSTQSMPV
    SP family, peptide GEVAPAVPAVPSEAVPQKQVEAK
    SP4 PETNAASPVSDAKPESDSKPVDA
    EVKPTVSEVKAESEQKPSGEPKP
    ESDAKPVVASESKPESDPKPAAV
    VESKPENDAVAPETNNDAKPENA
    AAPVSENKPATDAKAETELIAQA
    KPESKPASDLKAEPEAAKPNSEV
    PVALPLNPTETKATQQSVETNQV
    EQAAPAAAQADPAAAPAADPAPA
    PAAAPVAAEEAKLSESAPSTENK
    AAEEPSKPAEQQSAKPVEDAVPA
    ASEISETKVSPAVPAVPEVPASP
    SAPAVADPVSAPEAEKNAEPAKA
    ANSAEPAVQSEAKPAEDIQKSGA
    VVSAENPKPVEEQKPAEVAKPAE
    QSKSEAPAEAPKPTEQSAAEEPK
    KPESANDEKKEQHSVNKRDATKE
    KKPTDSIMKKQKQKKAN 
    (SEQ ID NO: 208)
    Secreted proteins MNGKIVLCFAVVFIGQAMSAATG
    SP family, peptide TTPEVEDIKKVAEQMSQTFMSVA
    SP5a NHLVGITPNSADAQKSIEKIRTI
    MNKGFTDMETEANKMKDIVRKNA
    DPKLVEKYDELEKELKKHLSTAK
    DMFEDKVVKPIGEKVELKKITEN
    VIKTTKDMEATMNKAIDGFKKQ
    (SEQ ID NO: 209)
    Secreted proteins MHLFLALGLFIVCGMVDATFYNP
    SP family, peptide RSQTFNQLMERRQRSIPIPYSYG
    SP6 YHYNPIEPSINVLDSLSEGLDSR
    INTFKPIYQNVKMSTQDVNSVPR
    TQYQPKNSLYDSEYISAKDIPSL
    FPEEDSYDYKYLGSPLNKYLTRP
    STQESGIAINLVAIKETSVFDYG
    FPTYKSPYSSDSVWNFGSKIPNT
    VFEDPQSVESDPNTFKVSSPTIK
    IVKLLPETPEQESIITTTKNYEL
    NYKTTQETPTEAELYPITSEEFQ
    TEDEWHPMVPKENTTKDESSFIT
    TEEPLTEDKSNSITIEKTQTEDE
    SNSIEFNSIRTEEKSNSITTEEN
    QKEDDESMSTTSQETTTAFNLND
    TFDTNRYSSSHESLMLRIRELMK
    NIADQQNKSQFRTVDNIPAKSQS
    NLSSDESTNQQFEPQLVNGADTY
    K (SEQ ID NO: 210)
    Colepotericin A, MTRTMLFLACVAALYVCISATAG
    ColA peptide KPEEFAKLSDEAPSNDQAMYESI
    QRYRRFVDGNRYNGGQQQQQQPK
    QWEVRPDLSRDQRGNTKAQVEIN
    KKGDNHDINAGWGKNINGPDSHK
    DTWHVGGSVRW
    (SEQ ID NO: 211)
    RIpA type I MKETTVVWAKLFLILIILAKPLG
    LKAVNECKRLGNNSCRSHGECCS
    GFCFIEPGWALGVCKRLGTPKKS
    DDSNNGKNIEKNNGVHERIDDVF
    ERGVCSYYKGPSITANGDVFDEN
    EMTAAHRTLPFNTMVKVEGMGTS
    VVVKINDRKTAADGKVMLLSRAA
    AESLNIDENTGPVQCQLKFVLDG
    SGCTPDYGDTCVLHHECCSQNCF
    REMFSDKGFCLPK 
    (SEQ ID NO: 212)
  • In some instances, the BRP alters the growth and/or activity of one or more bacteria resident in the bacteriocyte of the host. In some instances, the BRP may be bioengineered to modulate its bioactivity (e.g., increase, decrease, or regulate) or to specify a target microorganism. In some instances, the BRP is produced by the translational machinery (e.g. a ribosome, etc.) of a cell. In some instances, the BRP is chemically synthesized. In some instances, the BRP is derived from a polypeptide precursor. The polypeptide precursor can undergo cleavage (for example, processing by a protease) to yield the polypeptide of the BRP itself. As such, in some instances, the BRP is produced from a precursor polypeptide. In some instances, the BRP includes a polypeptide that has undergone post-translational modifications, for example, cleavage, or the addition of one or more functional groups.
  • Functionally active variants of the BRPs as described herein are also useful in the compositions and methods described herein. In some instances, the variant of the BRP has at least 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity, e.g., over a specified region or over the entire sequence, to a sequence of a BRP described herein or naturally derived BRP.
  • The BRP described herein may be formulated in a composition for any of the uses described herein. The compositions disclosed herein may include any number or type (e.g., classes) of BRPs, such as at least about any one of 1 BRP, 2, 3, 4, 5, 10, 15, 20, or more BRPs. A suitable concentration of each BRP in the composition depends on factors such as efficacy, stability of the BRP, number of distinct BRP, the formulation, and methods of application of the composition. In some instances, each BRP in a liquid composition is from about 0.1 ng/mL to about 100 mg/mL. In some instances, each BRP in a solid composition is from about 0.1 ng/g to about 100 mg/g. In some instances, wherein the composition includes at least two types of BRPs, the concentration of each type of BRP may be the same or different.
  • A modulating agent including a BRP as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of BRP concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of BRP concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of BRP concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • iii. Small Molecules
  • Numerous small molecules (e.g., an antibiotic or a metabolite) may be used in the compositions and methods described herein. In some instances, an effective concentration of any small molecule described herein may alter the level, activity, or metabolism of one or more microorganisms (as described herein) resident in a host, the alteration resulting in a decrease in the host's fitness.
  • A modulating agent comprising a small molecule as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of a small molecule concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of small molecule concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of a small molecule concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • The small molecules discussed hereinafter, namely antibiotics and secondary metabolites, can be used to alter the level, activity, or metabolism of target microorganisms as indicated in the sections for decreasing the fitness of a host insect (e.g., vector of an animal pathogen), such as a mosquito, a mite, a louse, or a tick.
  • (a) Antibiotics
  • The modulating agent described herein may include an antibiotic. Any antibiotic known in the art may be used. Antibiotics are commonly classified based on their mechanism of action, chemical structure, or spectrum of activity.
  • The antibiotic described herein may target any bacterial function or growth processes and may be either bacteriostatic (e.g., slow or prevent bacterial growth) or bactericidal (e.g., kill bacteria). In some instances, the antibiotic is a bactericidal antibiotic. In some instances, the bactericidal antibiotic is one that targets the bacterial cell wall (e.g., penicillins and cephalosporins); one that targets the cell membrane (e.g., polymyxins); or one that inhibits essential bacterial enzymes (e.g., rifamycins, lipiarmycins, quinolones, and sulfonamides). In some instances, the bactericidal antibiotic is an aminoglycoside. In some instances, the antibiotic is a bacteriostatic antibiotic. In some instances the bacteriostatic antibiotic targets protein synthesis (e.g., macrolides, lincosamides and tetracyclines). Additional classes of antibiotics that may be used herein include cyclic lipopeptides (such as daptomycin), glycylcyclines (such as tigecycline), oxazolidinones (such as linezolid), or lipiarmycins (such as fidaxomicin). Examples of antibiotics include oxytetracycline, doxycycline, rifampicin, ciprofloxacin, ampicillin, and polymyxin B. Other non-limiting examples of antibiotics are found in Table 9.
  • TABLE 9
    Examples of Antibiotics
    Antibiotics Action
    Penicillins, cephalosporins, Cell wall synthesis
    vancomycin
    Polymixin, gramicidin Membrane active agent, disrupt
    cell membrane
    Tetracyclines, macrolides, Inhibit protein synthesis
    chloramphenicol, clindamycin,
    spectinomycin
    Sulfonamides Inhibit folate-dependent pathways
    Ciprofloxacin Inhibit DNA-gyrase
    Isoniazid, rifampicin, Antimycobacterial agents
    pyrazinamide, ethambutol,
    (myambutol)l, streptomycin
  • The antibiotic described herein may have any level of target specificity (e.g., narrow- or broad-spectrum). In some instances, the antibiotic is a narrow-spectrum antibiotic, and thus targets specific types of bacteria, such as gram-negative or gram-positive bacteria. Alternatively, the antibiotic may be a broad-spectrum antibiotic that targets a wide range of bacteria.
  • The antibiotics described herein may be formulated in a composition for any of the uses described herein. The compositions disclosed herein may include any number or type (e.g., classes) of antibiotics, such as at least about any one of 1 antibiotic, 2, 3, 4, 5, 10, 15, 20, or more antibiotics (e.g., a combination of rifampicin and doxycycline, or a combination of ampicillin and rifampicin). A suitable concentration of each antibiotic in the composition depends on factors such as efficacy, stability of the antibiotic, number of distinct antibiotics, the formulation, and methods of application of the composition. In some instances, wherein the composition includes at least two types of antibiotics, the concentration of each type of antibiotic may be the same or different.
  • A modulating agent including an antibiotic as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of antibiotic concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of antibiotic concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of antibiotic concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • As illustrated by Examples 1-4, 14, 26, and 27, antibiotics (e.g., doxycycline, oxytetracycline, azithromycin, ciprofloxacin, or rifampicin) can be used as modulating agents that target an endosymbiotic bacterium, such as a Wolbachia spp., in an insect host (e.g., an insect vector of an animal pathogen), such as a mosquito or mite or tick or biting louse, to decrease the fitness of the host (e.g., as outlined herein). As illustrated by Example 3, antibiotics such as oxytetracycline can be used as modulating agents that target an endosymbiotic bacterium, such as a Rickettsia spp., in an insect host, such as ticks, to decrease the fitness of the host (e.g., as outlined herein).
  • (b) Secondary Metabolites
  • In some instances, the modulating agent of the compositions and methods described herein includes a secondary metabolite. Secondary metabolites are derived from organic molecules produced by an organism. Secondary metabolites may act (i) as competitive agents used against bacteria, fungi, amoebae, plants, insects, and large animals; (ii) as metal transporting agents; (iii) as agents of symbiosis between microbes and plants, insects, and higher animals; (iv) as sexual hormones; and (v) as differentiation effectors. Non-limiting examples of secondary metabolites are found in Table 10.
  • TABLE 10
    Examples of Secondary Metabolites
    Phenyl-
    propanoids Alkaloids Terpenoids Quinones Steroids Polyketides
    Anthocyanins Acridines Carotenes Anthroquinones Cardiac Erythromycin
    Coumarins Betalaines Monoterpenes Bezoquinones Glycosides Lovastatin and
    other statins
    Flavonoids Quinolozidines Sesquiterpenes Naphthoquinones Pregnenolone Discodermolide
    Hydroxy- Furonoquinones Diterpenes Derivatives Aflatoxin B1
    cinnamoyl
    Derivatives Harringtonines Triterpenes Avermectins
    Isoflavonoids Isoquinolines Nystatin
    Lignans Indoles Rifamycin
    Phenolenones Purines
    Proanthocyanidins Pyridines
    Stilbenes Tropane
    Tanins Alkaloids
  • The secondary metabolite used herein may include a metabolite from any known group of secondary metabolites. For example, secondary metabolites can be categorized into the following groups: alkaloids, terpenoids, flavonoids, glycosides, natural phenols (e.g., gossypol acetic acid), enals (e.g., trans-cinnamaldehyde), phenazines, biphenols and dibenzofurans, polyketides, fatty acid synthase peptides, nonribosomal peptides, ribosomally synthesized and post-translationally modified peptides, polyphenols, polysaccharides (e.g., chitosan), and biopolymers. For an in-depth review of secondary metabolites see, for example, Vining, Annu. Rev. Microbiol. 44:395-427, 1990.
  • Secondary metabolites useful for compositions and methods described herein include those that alter a natural function of an endosymbiont (e.g., primary or secondary endosymbiont), bacteriocyte, or extracellular symbiont. In some instances, one or more secondary metabolites described herein is isolated from a high throughput screening (HTS) for antimicrobial compounds. For example, a HTS screen identified 49 antibacterial extracts that have specificity against gram positive and gram negative bacteria from over 39,000 crude extracts from organisms growing in diverse ecosystems of one specific region. In some instances, the secondary metabolite is transported inside a bacteriocyte.
  • In some instances, the small molecule is an inhibitor of vitamin synthesis. In some instances, the vitamin synthesis inhibitor is a vitamin precursor analog. In certain instances, the vitamin precursor analog is pantothenol.
  • In some instances, the small molecule is an amino acid analog. In certain instances, the amino acid analog is L-canvanine, D-arginine, D-valine, D-methionine, D-phenylalanine, D-histidine, D-tryptophan, D-threonine, D-leucine, L-NG-nitroarginine, or a combination thereof.
  • In some instances the small molecule is a natural antimicrobial compound, such as propionic acid, levulinic acid, trans-cinnemaldehdye, nisin, or low molecular weight chitosan. The secondary metabolite described herein may be formulated in a composition for any of the uses described herein. The compositions disclosed herein may include any number or type (e.g., classes) of secondary metabolites, such as at least about any one of 1 secondary metabolite, 2, 3, 4, 5, 10, 15, 20, or more secondary metabolites. A suitable concentration of each secondary metabolite in the composition depends on factors such as efficacy, stability of the secondary metabolite, number of distinct secondary metabolites, the formulation, and methods of application of the composition. In some instances, wherein the composition includes at least two types of secondary metabolites, the concentration of each type of secondary metabolite may be the same or different.
  • A modulating agent including a secondary metabolite as described herein can be contacted with the target host in an amount and for a time sufficient to: (a) reach a target level (e.g., a predetermined or threshold level) of secondary metabolite concentration inside a target host; (b) reach a target level (e.g., a predetermined or threshold level) of secondary metabolite concentration inside a target host gut; (c) reach a target level (e.g., a predetermined or threshold level) of secondary metabolite concentration inside a target host bacteriocyte; (d) modulate the level, or an activity, of one or more microorganism (e.g., endosymbiont) in the target host; or/and (e) modulate fitness of the target host.
  • As illustrated by Example 15, secondary metabolites (e.g., gossypol) can be used as modulating agents that target an endosymbiotic bacterium in an insect host to decrease the fitness of the host (e.g., as outlined herein). As further illustrated by Examples 11-13, 15-19, 23, and 24, small molecules, such as trans-cinnemaldehyde, levulinic acid, chitosan, vitamin analogs, or amino acid transport inhibitors, can be used as modulating agents that target an endosymbiotic bacterium in an insect host to decrease the fitness of the host (e.g., as outlined herein).
  • iv. Bacteria as Modulating Agents
  • In some instances, the modulating agent described herein includes one or more bacteria. Numerous bacteria are useful in the compositions and methods described herein. In some instances, the agent is a bacterial species endogenously found in the host. In some instances, the bacterial modulating agent is an endosymbiotic bacterial species. Non-limiting examples of bacteria that may be used as modulating agents include all bacterial species described herein in Section II of the detailed description and those listed in Table 1. For example, the modulating agent may be a bacterial species from any bacterial phyla present in insect guts, including Gammaproteobacteria, Alphaproteobacteria, Betaproteobacteria, Bacteroidetes, Firmicutes (e.g., Lactobacillus and Bacillus spp.), Clostridia, Actinomycetes, Spirochetes, Verrucomicrobia, and Actinobacteria.
  • In some instances, the modulating agent is a bacterium that disrupts microbial diversity or otherwise alters the microbiota of the host in a manner detrimental to the host. In one instance, bacteria may be provided to disrupt the microbiota of mosquitos. For example, the bacterial modulating agent may compete with, displace, and/or reduce a population of symbiotic bacteria in a mosquito.
  • In another instance, bacteria may be provided to disrupt the microbiota of mites. For example, the bacterial modulating agent may compete with, displace, and/or reduce a population of symbiotic bacteria in a mite.
  • In another instance, bacteria may be provided to disrupt the microbiota of biting lice. For example, the bacterial modulating agent may compete with, displace, and/or reduce a population of symbiotic bacteria in a biting louse.
  • In another instance, bacteria may be provided to disrupt the microbiota of ticks. For example, the bacterial modulating agent may compete with, displace, and/or reduce a population of symbiotic bacteria in a tick.
  • The bacterial modulating agents discussed herein can be used to alter the level, activity, or metabolism of target microorganisms as indicated in the sections for decreasing the fitness of a host insect (e.g., a vector of an animal pathogen), such as a mosquito a mite, a biting louse, or a tick.
  • v. Modifications to Modulating Agents
  • (a) Fusions
  • Any of the modulating agents described herein may be fused or linked to an additional moiety. In some instances, the modulating agent includes a fusion of one or more additional moieties (e.g., 1 additional moiety, 2, 3, 4, 5, 6, 7, 8, 9, 10, or more additional moieties). In some instances, the additional moiety is any one of the modulating agents described herein (e.g., a peptide, polypeptide, small molecule, or antibiotic). Alternatively, the additional moiety may not act as modulating agent itself but may instead serve a secondary function. For example, the additional moiety may to help the modulating agent access, bind, or become activated at a target site in the host (e.g., at a host gut or a host bacteriocyte) or at a target microorganism resident in the host (e.g., a vector of an animal pathogen, e.g., a mosquito, a mite, a biting louse, or a tick).
  • In some instances, the additional moiety may help the modulating agent penetrate a target host cell or target microorganism resident in the host. For example, the additional moiety may include a cell penetrating peptide. Cell penetrating peptides (CPPs) may be natural sequences derived from proteins; chimeric peptides that are formed by the fusion of two natural sequences; or synthetic CPPs, which are synthetically designed sequences based on structure-activity studies. In some instances, CPPs have the capacity to ubiquitously cross cellular membranes (e.g., prokaryotic and eukaryotic cellular membranes) with limited toxicity. Further, CPPs may have the capacity to cross cellular membranes via energy-dependent and/or independent mechanisms, without the necessity of a chiral recognition by specific receptors. CPPs can be bound to any of the modulating agents described herein. For example, a CPP can be bound to an antimicrobial peptide (AMP), e.g., a scorpion peptide, e.g., UY192 fused to a cell penetrating peptide (e.g., YGRKKRRQRRRFLSTIWNGIKGLLFAM; SEQ ID NO: 232). Non-limiting examples of CPPs are listed in Table 11.
  • TABLE 11
    Examples of Cell Penetrating Peptides (CPPs)
    Peptide Origin Sequence
    Protein-derived
    Penetratin Antennapedia RQIKIWFQNRRMKWKK
    (SEQ ID NO: 213)
    Tat peptide Tat GRKKRRQRRRPPQ
    (SEQ ID NO: 214)
    pVEC Cadherin LLIILRRRIRKQAHAH
    SK
    (SEQ ID NO: 215)
    Chimeric
    Transportan Galanine/ GWTLNSAGYLLGKINL
    Mastoparan KALAALAKKIL
    (SEQ ID NO: 216)
    MPG HIV-gp41/ GALFLGFLGAAGSTMG
    SV40 T-antigen AWSQPKKKRKV
    (SEQ ID NO: 217)
    Pep-1 HIV-reverse KETWWETWWTEWSQPK
    transcriptase/ KKRKV
    SV40 T-antigen (SEQ ID NO: 218)
    Synthetic
    Polyarginines Based on Tat (R)n;
    peptide 6 < n < 12
    MAP de novo KLALKLALKALKAALK
    LA
    (SEQ ID NO: 219)
    R6W3 Based on  RRWWRRWRR
    penetratin (SEQ ID NO: 220)
  • In other instances, the additional moiety helps the modulating agent bind a target microorganism (e.g., a fungi or bacterium) resident in the host. The additional moiety may include one or more targeting domains. In some instances, the targeting domain may target the modulating agent to one or more microorganisms (e.g., bacterium or fungus) resident in the gut of the host. In some instances, the targeting domain may target the modulating agent to a specific region of the host (e.g., host gut or bacteriocyte) to access microorganisms that are generally present in said region of the host. For example, the targeting domain may target the modulating agent to the foregut, midgut, or hindgut of the host. In other instances, the targeting domain may target the modulating agent to a bacteriocyte in the host and/or one or more specific bacteria resident in a host bacteriocyte. For example, the targeting domain may be Galanthus nivalis lectin or agglutinin (GNA) bound to a modulating agent described herein, e.g., an AMP, e.g., a scorpion peptide, e.g., Uy192.
  • (b) Pre- or Pro-Domains
  • In some instances, the modulating agent may include a pre- or pro-amino acid sequence. For example, the modulating agent may be an inactive protein or peptide that can be activated by cleavage or post-translational modification of a pre- or pro-sequence. In some instances, the modulating agent is engineered with an inactivating pre- or pro-sequence. For example, the pre- or pro-sequence may obscure an activation site on the modulating agent, e.g., a receptor binding site, or may induce a conformational change in the modulating agent. Thus, upon cleavage of the pre- or pro-sequence, the modulating agent is activated.
  • Alternatively, the modulating agent may include a pre- or pro-small molecule, e.g., an antibiotic. The modulating agent may be an inactive small molecule described herein that can be activated in a target environment inside the host. For example, the small molecule may be activated upon reaching a certain pH in the host gut.
  • (c) Linkers
  • In instances where the modulating agent is connected to an additional moiety, the modulating agent may further include a linker. For example, the linker may be a chemical bond, e.g., one or more covalent bonds or non-covalent bonds. In some instances, the linker may be a peptide linker (e.g., 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 20, 25, 30, 35, 40, or more amino acids longer). The linker maybe include any flexible, rigid, or cleavable linkers described herein.
  • A flexible peptide linker may include any of those commonly used in the art, including linkers having sequences having primarily Gly and Ser residues (“GS” linker). Flexible linkers may be useful for joining domains that require a certain degree of movement or interaction and may include small, non-polar (e.g. Gly) or polar (e.g. Ser or Thr) amino acids.
  • Alternatively, a peptide linker may be a rigid linker. Rigid linkers are useful to keep a fixed distance between moieties and to maintain their independent functions. Rigid linkers may also be useful when a spatial separation of the domains is critical to preserve the stability or bioactivity of one or more components in the fusion. Rigid linkers may, for example, have an alpha helix-structure or Pro-rich sequence, (XP)n, with X designating any amino acid, preferably Ala, Lys, or Glu.
  • In yet other instances, a peptide linker may be a cleavable linker. In some instances, linkers may be cleaved under specific conditions, such as the presence of reducing reagents or proteases. In vivo cleavable linkers may utilize the reversible nature of a disulfide bond. One example includes a thrombin-sensitive sequence (e.g., PRS) between two Cys residues. In vitro thrombin treatment of CPRSC results in the cleavage of the thrombin-sensitive sequence, while the reversible disulfide linkage remains intact. Such linkers are known and described, e.g., in Chen et al., Adv. Drug Deliv. Rev. 65(10):1357-1369, 2013. Cleavage of linkers in fusions may also be carried out by proteases that are expressed in vivo under conditions in specific cells or tissues of the host or microorganisms resident in the host. In some instances, cleavage of the linker may release a free functional, modulating agent upon reaching a target site or cell.
  • Fusions described herein may alternatively be linked by a linking molecule, including a hydrophobic linker, such as a negatively charged sulfonate group; lipids, such as a poly (—CH2-) hydrocarbon chains, such as polyethylene glycol (PEG) group, unsaturated variants thereof, hydroxylated variants thereof, amidated or otherwise N-containing variants thereof, non-carbon linkers; carbohydrate linkers; phosphodiester linkers, or other molecule capable of covalently linking two or more molecules, e.g., two modulating agents. Non-covalent linkers may be used, such as hydrophobic lipid globules to which the modulating agent is linked, for example, through a hydrophobic region of the modulating agent or a hydrophobic extension of the modulating agent, such as a series of residues rich in leucine, isoleucine, valine, or perhaps also alanine, phenylalanine, or even tyrosine, methionine, glycine, or other hydrophobic residue. The modulating agent may be linked using charge-based chemistry, such that a positively charged moiety of the modulating agent is linked to a negative charge of another modulating agent or an additional moiety.
  • IV. Formulations and Compositions
  • The compositions described herein may be formulated either in pure form (e.g., the composition contains only the modulating agent) or together with one or more additional agents (such as excipient, delivery vehicle, carrier, diluent, stabilizer, etc.) to facilitate application or delivery of the compositions. Examples of suitable excipients and diluents include, but are not limited to, lactose, dextrose, sucrose, sorbitol, mannitol, starches, gum acacia, calcium phosphate, alginates, tragacanth, gelatin, calcium silicate, microcrystalline cellulose, polyvinylpyrrolidone, cellulose, water, saline solution, syrup, methylcellulose, methyl- and propylhydroxybenzoates, talc, magnesium stearate, and mineral oil.
  • In some instances, the composition includes a delivery vehicle or carrier. In some instances, the delivery vehicle includes an excipient. Exemplary excipients include, but are not limited to, solid or liquid carrier materials, solvents, stabilizers, slow-release excipients, colorings, and surface-active substances (surfactants). In some instances, the delivery vehicle is a stabilizing vehicle. In some instances, the stabilizing vehicle includes a stabilizing excipient. Exemplary stabilizing excipients include, but are not limited to, epoxidized vegetable oils, antifoaming agents, e.g. silicone oil, preservatives, viscosity regulators, binding agents and tackifiers. In some instances, the stabilizing vehicle is a buffer suitable for the modulating agent. In some instances, the composition is microencapsulated in a polymer bead delivery vehicle. In some instances, the stabilizing vehicle protects the modulating agent against UV and/or acidic conditions. In some instances, the delivery vehicle contains a pH buffer. In some instances, the composition is formulated to have a pH in the range of about 4.5 to about 9.0, including for example pH ranges of about any one of 5.0 to about 8.0, about 6.5 to about 7.5, or about 6.5 to about 7.0.
  • Depending on the intended objectives and prevailing circumstances, the composition may be formulated into emulsifiable concentrates, suspension concentrates, directly sprayable or dilutable solutions, coatable pastes, diluted emulsions, spray powders, soluble powders, dispersible powders, wettable powders, dusts, granules, encapsulations in polymeric substances, microcapsules, foams, aerosols, carbon dioxide gas preparations, tablets, resin preparations, paper preparations, nonwoven fabric preparations, or knitted or woven fabric preparations. In some instances, the composition is a liquid. In some instances, the composition is a solid. In some instances, the composition is an aerosol, such as in a pressurized aerosol can. In some instances, the composition is present in the waste (such as feces) of the pest. In some instances, the composition is present in or on a live pest.
  • In some instances, the delivery vehicle is the food or water of the host. In other instances, the delivery vehicle is a food source for the host. In some instances, the delivery vehicle is a food bait for the host. In some instances, the composition is a comestible agent consumed by the host. In some instances, the composition is delivered by the host to a second host, and consumed by the second host. In some instances, the composition is consumed by the host or a second host, and the composition is released to the surrounding of the host or the second host via the waste (such as feces) of the host or the second host. In some instances, the modulating agent is included in food bait intended to be consumed by a host or carried back to its colony.
  • In some instances, the delivery vehicle is a bacterial vector. The modulating agent can be incorporated in a bacterial vector using any suitable cloning methods and reagents known in the art, such as described in Sambrook et al., Molecular Cloning: A Laboratory Manual, Cold Spring Harbor Laboratory Press, Cold Spring Harbor, N.Y., 1989. “Bacterial vector” as used herein refers to any genetic element, such as plasmids, bacteriophage vectors, transposons, cosmids, and chromosomes, which is capable of replication inside bacterial cells and which is capable of transferring genes between cells. Exemplary bacterial vectors include, but are not limited to, lambda vector system gtl 1, gt WES.tB, Charon 4, and plasmid vectors such as pBR322, pBR325, pACYC177, pACYC184, pUC8, pUC9, pUC18, pUC19, pLG339, pR290, pKC37, pKCIOI, SV 40, pBluescript II SK +/− or KS +/−(see “Stratagene Cloning Systems” Catalog, Stratagene, La Jolla, Calif., 1993), pQE, pIH821, pGEX, pET series (see Studier et al., “Use of T7 RNA Polymerase to Direct Expression of Cloned Genes,” Gene Expression Technology Vol. 185, 1990), and any derivatives thereof.
  • Each bacterial vector may encode one or more modulating agents. In some instances, the bacterial vector includes a phage genome to be expressed and packaged in the target symbiotic bacterium. In some instances, the bacterial vector includes a nucleic acid molecule encoding a lysin to be expressed in the target symbiotic bacterium or a host bacterium. In some instances, the lysin is co-expressed with a holin, or the lysin is engineered to have a signal peptide for secretion from the host bacterium. In some instances, the bacterial vector includes a nucleic acid molecule encoding a bacteriocin to be expressed in the target symbiotic bacterium. In some instances, the bacterial vector further includes one or more regulatory elements, such as promoters, termination signals, and transcription and translation elements. In some instances, the regulatory sequence is operably linked to a nucleic acid encoding a gene (such as a bacteriocin, lysin, or other polypeptides) to be expressed in the target symbiotic bacterium.
  • In some instances, the bacterial vector is introduced into a bacterium to be consumed by the host or a member in the colony of the host. In some instances, the bacterium is the target symbiotic bacterium. In some instances, the bacterium is a naturally occurring bacterium of the gut of the host, or a genetically modified derivative thereof, which can be easily introduced to the host through ingestion. Exemplary bacteria for use in carrying the bacterial vector include, but are not limited to, Proteobacter, including the genus Pseudomonas; Actinobacter, including Priopionibacterium and Corynebacterium; Firmicutes, including the any species of the genera Mycoplasma, Bacillus, Streptococcus, Staphylococcus; Fibrobacteres; Spirochaetes, including Treponema and Borrelia; Bacteroides, including the genera Bacteroides and Flavobacterium. Also suitable are any bacteria of the Enterobacteriaceae, including the genus Serratia, including, but not limited to S. marcescens, S. entomophila, S. proteamaculans, S. marcensces; any species of Enterobacter, including, but not limited to, E. cloacae, E. amnigenus, E. aerogenes, E. dissolvens, E. agglomerans, E. hafiiiae; and any species belonging to the following genera: Citrobacter, Escherichia, Klebsiella, Kluyvera, Panotea, Proteus, Salmonella, Xenorhabdus, and Yokenella.
  • In some instances, the modulating agent may make up about 0.1% to about 100% of the composition, such as any one of about 0.01% to about 100%, about 1% to about 99.9%, about 0.1% to about 10%, about 1% to about 25%, about 10% to about 50%, about 50% to about 99%, or about 0.1% to about 90% of active ingredients (such as phage, lysin or bacteriocin). In some instances, the composition includes at least any of 0.1%, 0.5%, 1%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, or more active ingredients (such as phage, lysin or bacteriocin). In some instances, the concentrated agents are preferred as commercial products, the final user normally uses diluted agents, which have a substantially lower concentration of active ingredient.
  • Any of the formulations described herein may be used in the form of a bait, a coil, an electric mat, a smoking preparation, a fumigant, or a sheet.
  • i. Liquid Formulations
  • The compositions provided herein may be in a liquid formulation. Liquid formulations are generally mixed with water, but in some instances may be used with crop oil, diesel fuel, kerosene or other light oil as a carrier. The amount of active ingredient often ranges from about 0.5 to about 80 percent by weight.
  • An emulsifiable concentrate formulation may contain a liquid active ingredient, one or more petroleum-based solvents, and an agent that allows the formulation to be mixed with water to form an emulsion. Such concentrates may be used in agricultural, ornamental and turf, forestry, structural, food processing, livestock, and public health pest formulations. These may be adaptable to application equipment from small portable sprayers to hydraulic sprayers, low-volume ground sprayers, mist blowers, and low-volume aircraft sprayers. Some active ingredients are readily dissolve in a liquid carrier. When mixed with a carrier, they form a solution that does not settle out or separate, e.g., a homogenous solution. Formulations of these types may include an active ingredient, a carrier, and one or more other ingredients. Solutions may be used in any type of sprayer, indoors and outdoors.
  • In some instances, the composition may be formulated as an invert emulsion. An invert emulsion is a water-soluble active ingredient dispersed in an oil carrier. Invert emulsions require an emulsifier that allows the active ingredient to be mixed with a large volume of petroleum-based carrier, usually fuel oil. Invert emulsions aid in reducing drift. With other formulations, some spray drift results when water droplets begin to evaporate before reaching target surfaces; as a result the droplets become very small and lightweight. Because oil evaporates more slowly than water, invert emulsion droplets shrink less and more active ingredient reaches the target. Oil further helps to reduce runoff and improve rain resistance. It further serves as a sticker-spreader by improving surface coverage and absorption. Because droplets are relatively large and heavy, it is difficult to get thorough coverage on the undersides of foliage. Invert emulsions are most commonly used along rights-of-way where drift to susceptible non-target areas can be a problem.
  • A flowable or liquid formulation combines many of the characteristics of emulsifiable concentrates and wettable powders. Manufacturers use these formulations when the active ingredient is a solid that does not dissolve in either water or oil. The active ingredient, impregnated on a substance such as clay, is ground to a very fine powder. The powder is then suspended in a small amount of liquid. The resulting liquid product is quite thick. Flowables and liquids share many of the features of emulsifiable concentrates, and they have similar disadvantages. They require moderate agitation to keep them in suspension and leave visible residues, similar to those of wettable powders.
  • Flowables/liquids are easy to handle and apply. Because they are liquids, they are subject to spilling and splashing. They contain solid particles, so they contribute to abrasive wear of nozzles and pumps. Flowable and liquid suspensions settle out in their containers. Because flowable and liquid formulations tend to settle, packaging in containers of five gallons or less makes remixing easier.
  • Aerosol formulations contain one or more active ingredients and a solvent. Most aerosols contain a low percentage of active ingredients. There are two types of aerosol formulations—the ready-to-use type commonly available in pressurized sealed containers and those products used in electrical or gasoline-powered aerosol generators that release the formulation as a smoke or fog.
  • Ready to use aerosol formulations are usually small, self-contained units that release the formulation when the nozzle valve is triggered. The formulation is driven through a fine opening by an inert gas under pressure, creating fine droplets. These products are used in greenhouses, in small areas inside buildings, or in localized outdoor areas. Commercial models, which hold five to 5 pounds of active ingredient, are usually refillable.
  • Smoke or fog aerosol formulations are not under pressure. They are used in machines that break the liquid formulation into a fine mist or fog (aerosol) using a rapidly whirling disk or heated surface.
  • ii. Dry or Solid Formulations
  • Dry formulations can be divided into two types: ready-to-use and concentrates that must be mixed with water to be applied as a spray. Most dust formulations are ready to use and contain a low percentage of active ingredients (less than about 10 percent by weight), plus a very fine, dry inert carrier made from talc, chalk, clay, nut hulls, or volcanic ash. The size of individual dust particles varies. A few dust formulations are concentrates and contain a high percentage of active ingredients. Mix these with dry inert carriers before applying. Dusts are always used dry and can easily drift to non-target sites.
  • iii. Granule or Pellet Formulations
  • In some instances, the composition is formulated as granules. Granular formulations are similar to dust formulations, except granular particles are larger and heavier. The coarse particles may be made from materials such as clay, corncobs, or walnut shells. The active ingredient either coats the outside of the granules or is absorbed into them. The amount of active ingredient may be relatively low, usually ranging from about 0.5 to about 15 percent by weight. Granular formulations are most often used to apply to the soil, insects living in the soil, or absorption into plants through the roots. Granular formulations are sometimes applied by airplane or helicopter to minimize drift or to penetrate dense vegetation. Once applied, granules may release the active ingredient slowly. Some granules require soil moisture to release the active ingredient. Granular formulations also are used to control larval mosquitoes and other aquatic pests. Granules are used in agricultural, structural, ornamental, turf, aquatic, right-of-way, and public health (biting insect) pest-control operations.
  • In some instances, the composition is formulated as pellets. Most pellet formulations are very similar to granular formulations; the terms are used interchangeably. In a pellet formulation, however, all the particles are the same weight and shape. The uniformity of the particles allows use with precision application equipment.
  • iv. Powders
  • In some instances, the composition is formulated as a powder. In some instances, the composition is formulated as a wettable powder. Wettable powders are dry, finely ground formulations that look like dusts. They usually must be mixed with water for application as a spray. A few products, however, may be applied either as a dust or as a wettable powder—the choice is left to the applicator. Wettable powders have about 1 to about 95 percent active ingredient by weight; in some cases more than about 50 percent. The particles do not dissolve in water. They settle out quickly unless constantly agitated to keep them suspended. They can be used for most pest problems and in most types of spray equipment where agitation is possible. Wettable powders have excellent residual activity. Because of their physical properties, most of the formulation remains on the surface of treated porous materials such as concrete, plaster, and untreated wood. In such cases, only the water penetrates the material.
  • In some instances, the composition is formulated as a soluble powder. Soluble powder formulations look like wettable powders. However, when mixed with water, soluble powders dissolve readily and form a true solution. After they are mixed thoroughly, no additional agitation is necessary. The amount of active ingredient in soluble powders ranges from about 15 to about 95 percent by weight; in some cases more than about 50 percent. Soluble powders have all the advantages of wettable powders and none of the disadvantages, except the inhalation hazard during mixing.
  • In some instances, the composition is formulated as a water-dispersible granule. Water-dispersible granules, also known as dry flowables, are like wettable powders, except instead of being dust-like, they are formulated as small, easily measured granules. Water-dispersible granules must be mixed with water to be applied. Once in water, the granules break apart into fine particles similar to wettable powders. The formulation requires constant agitation to keep it suspended in water. The percentage of active ingredient is high, often as much as 90 percent by weight. Water-dispersible granules share many of the same advantages and disadvantages of wettable powders, except they are more easily measured and mixed. Because of low dust, they cause less inhalation hazard to the applicator during handling
  • v. Bait
  • In some instances, the composition includes a bait. The bait can be in any suitable form, such as a solid, paste, pellet or powdered form. The bait can also be carried away by the host back to a population of said host (e.g., a colony or hive). The bait can then act as a food source for other members of the colony, thus providing an effective modulating agent for a large number of hosts and potentially an entire host colony.
  • The baits can be provided in a suitable “housing” or “trap.” Such housings and traps are commercially available and existing traps can be adapted to include the compositions described herein. The housing or trap can be box-shaped for example, and can be provided in pre-formed condition or can be formed of foldable cardboard for example. Suitable materials for a housing or trap include plastics and cardboard, particularly corrugated cardboard. The inside surfaces of the traps can be lined with a sticky substance in order to restrict movement of the host once inside the trap. The housing or trap can contain a suitable trough inside which can hold the bait in place. A trap is distinguished from a housing because the host cannot readily leave a trap following entry, whereas a housing acts as a “feeding station” which provides the host with a preferred environment in which they can feed and feel safe from predators.
  • vi. Attractants
  • In some instances, the composition includes an attractant (e.g., a chemoattractant). The attractant may attract an adult host or immature host (e.g., larva) to the vicinity of the composition. Attractants include pheromones, a chemical that is secreted by an animal, especially an insect, which influences the behavior or development of others of the same species. Other attractants include sugar and protein hydrolysate syrups, yeasts, and rotting meat. Attractants also can be combined with an active ingredient and sprayed onto foliage or other items in the treatment area.
  • Various attractants are known which influence host behavior as a host's search for food, oviposition or mating sites, or mates. Attractants useful in the methods and compositions described herein include, for example, eugenol, phenethyl propionate, ethyl dimethylisobutyl-cyclopropane carboxylate, propyl benszodioxancarboxylate, cis-7,8-epoxy-2-methyloctadecane, trans-8,trans-0-dodecadienol, cis-9-tetradecenal (with cis-11-hexadecenal), trans-11-tetradecenal, cis-11-hexadecenal, (Z)-11,12-hexadecadienal, cis-7-dodecenyl acetate, cis-8-dodecenyul acetate, cis-9-dodecenyl acetate, cis-9-tetradecenyl acetate, cis-11-tetradecenyl acetate, trans-11-tetradecenyl acetate (with cis-11), cis-9,trans-11-tetradecadienyl acetate (with cis-9,trans-12), cis-9,trans-12-tetradecadienyl acetate, cis-7,cis-11-hexadecadienyl acetate (with cis-7,trans-11), cis-3,cis-13-octadecadienyl acetate, trans-3,cis-13-octadecadienyl acetate, anethole and isoamyl salicylate.
  • Means other than chemoattractants may also be used to attract insects, including lights in various wavelengths or colors.
  • vii. Nanocapsules/Microencapsulation/Liposomes
  • In some instances, the composition is provided in a microencapsulated formulation. Microencapsulated formulations are mixed with water and sprayed in the same manner as other sprayable formulations. After spraying, the plastic coating breaks down and slowly releases the active ingredient.
  • viii. Carriers
  • Any of the compositions described herein may be formulated to include the modulating agent described herein and an inert carrier. Such carrier can be a solid carrier, a liquid carrier, a gel carrier, and/or a gaseous carrier. In certain instances, the carrier can be a seed coating. The seed coating is any non-naturally occurring formulation that adheres, in whole or part, to the surface of the seed. The formulation may further include an adjuvant or surfactant. The formulation can also include one or more modulating agents to enlarge the action spectrum.
  • A solid carrier used for formulation includes finely-divided powder or granules of clay (e.g. kaolin clay, diatomaceous earth, bentonite, Fubasami clay, acid clay, etc.), synthetic hydrated silicon oxide, talc, ceramics, other inorganic minerals (e.g., sericite, quartz, sulfur, activated carbon, calcium carbonate, hydrated silica, etc.), a substance which can be sublimated and is in the solid form at room temperature (e.g., 2,4,6-triisopropyl-1,3,5-trioxane, naphthalene, p-dichlorobenzene, camphor, adamantan, etc.); wool; silk; cotton; hemp; pulp; synthetic resins (e.g., polyethylene resins such as low-density polyethylene, straight low-density polyethylene and high-density polyethylene; ethylene-vinyl ester copolymers such as ethylene-vinyl acetate copolymers; ethylene-methacrylic acid ester copolymers such as ethylene-methyl methacrylate copolymers and ethylene-ethyl methacrylate copolymers; ethylene-acrylic acid ester copolymers such as ethylene-methyl acrylate copolymers and ethylene-ethyl acrylate copolymers; ethylene-vinylcarboxylic acid copolymers such as ethylene-acrylic acid copolymers; ethylene-tetracyclododecene copolymers; polypropylene resins such as propylene homopolymers and propylene-ethylene copolymers; poly-4-methylpentene-1, polybutene-1, polybutadiene, polystyrene; acrylonitrile-styrene resins; styrene elastomers such as acrylonitrile-butadiene-styrene resins, styrene-conjugated diene block copolymers, and styrene-conjugated diene block copolymer hydrides; fluororesins; acrylic resins such as poly(methyl methacrylate); polyamide resins such as nylon 6 and nylon 66; polyester resins such as polyethylene terephthalate, polyethylene naphthalate, polybutylene terephthalate, and polycyclohexylenedimethylene terephthalate; polycarbonates, polyacetals, polyacrylsulfones, polyarylates, hydroxybenzoic acid polyesters, polyetherimides, polyester carbonates, polyphenylene ether resins, polyvinyl chloride, polyvinylidene chloride, polyurethane, and porous resins such as foamed polyurethane, foamed polypropylene, or foamed ethylene, etc.), glasses, metals, ceramics, fibers, cloths, knitted fabrics, sheets, papers, yarn, foam, porous substances, and multifilaments.
  • A liquid carrier may include, for example, aromatic or aliphatic hydrocarbons (e.g., xylene, toluene, alkylnaphthalene, phenylxylylethane, kerosine, gas oil, hexane, cyclohexane, etc.), halogenated hydrocarbons (e.g., chlorobenzene, dichloromethane, dichloroethane, trichloroethane, etc.), alcohols (e.g., methanol, ethanol, isopropyl alcohol, butanol, hexanol, benzyl alcohol, ethylene glycol, etc.), ethers (e.g., diethyl ether, ethylene glycol dimethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, propylene glycol monomethyl ether, tetrahydrofuran, dioxane, etc.), esters (e.g., ethyl acetate, butyl acetate, etc.), ketones (e.g., acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, etc.), nitriles (e.g., acetonitrile, isobutyronitrile, etc.), sulfoxides (e.g., dimethyl sulfoxide, etc.), amides (e.g., N,N-dimethylformamide, N,N-dimethylacetamide, cyclic imides (e.g. N-methylpyrrolidone) alkylidene carbonates (e.g., propylene carbonate, etc.), vegetable oil (e.g., soybean oil, cottonseed oil, etc.), vegetable essential oils (e.g., orange oil, hyssop oil, lemon oil, etc.), or water.
  • A gaseous carrier may include, for example, butane gas, flon gas, liquefied petroleum gas (LPG), dimethyl ether, and carbon dioxide gas.
  • ix. Adjuvants
  • In some instances, the composition provided herein may include an adjuvant. Adjuvants are chemicals that do not possess activity. Adjuvants are either pre-mixed in the formulation or added to the spray tank to improve mixing or application or to enhance performance. They are used extensively in products designed for foliar applications. Adjuvants can be used to customize the formulation to specific needs and compensate for local conditions. Adjuvants may be designed to perform specific functions, including wetting, spreading, sticking, reducing evaporation, reducing volatilization, buffering, emulsifying, dispersing, reducing spray drift, and reducing foaming. No single adjuvant can perform all these functions, but compatible adjuvants often can be combined to perform multiple functions simultaneously. Among nonlimiting examples of adjuvants included in the formulation are binders, dispersants and stabilizers, specifically, for example, casein, gelatin, polysaccharides (e.g., starch, gum arabic, cellulose derivatives, alginic acid, etc.), lignin derivatives, bentonite, sugars, synthetic water-soluble polymers (e.g., polyvinyl alcohol, polyvinylpyrrolidone, polyacrylic acid, etc.), PAP (acidic isopropyl phosphate), BHT (2,6-di-t-butyl-4-methylphenol), BHA (a mixture of 2-t-butyl-4-methoxyphenol and 3-t-butyl-4-methoxyphenol), vegetable oils, mineral oils, fatty acids and fatty acid esters.
  • x. Surfactants
  • In some instances, the composition provided herein includes a surfactant. Surfactants, also called wetting agents and spreaders, physically alter the surface tension of a spray droplet. For a formulation to perform its function properly, a spray droplet must be able to wet the foliage and spread out evenly over a leaf. Surfactants enlarge the area of formulation coverage, thereby increasing the pest's exposure to the chemical. Surfactants are particularly important when applying a formulation to waxy or hairy leaves. Without proper wetting and spreading, spray droplets often run off or fail to cover leaf surfaces adequately. Too much surfactant, however, can cause excessive runoff and reduce efficacy.
  • Surfactants are classified by the way they ionize or split apart into electrically charged atoms or molecules called ions. A surfactant with a negative charge is anionic. One with a positive charge is cationic, and one with no electrical charge is nonionic. Formulation activity in the presence of a nonionic surfactant can be quite different from activity in the presence of a cationic or anionic surfactant. Selecting the wrong surfactant can reduce the efficacy of a pesticide product and injure the target plant. Anionic surfactants are most effective when used with contact pesticides (pesticides that control the pest by direct contact rather than being absorbed systemically). Cationic surfactants should never be used as stand-alone surfactants because they usually are phytotoxic.
  • Nonionic surfactants, often used with systemic pesticides, help pesticide sprays penetrate plant cuticles. Nonionic surfactants are compatible with most pesticides, and most EPA-registered pesticides that require a surfactant recommend a nonionic type. Adjuvants include, but are not limited to, stickers, extenders, plant penetrants, compatibility agents, buffers or pH modifiers, drift control additives, defoaming agents, and thickeners.
  • Among nonlimiting examples of surfactants included in the compositions described herein are alkyl sulfate ester salts, alkyl sulfonates, alkyl aryl sulfonates, alkyl aryl ethers and polyoxyethylenated products thereof, polyethylene glycol ethers, polyvalent alcohol esters and sugar alcohol derivatives.
  • xi. Combinations
  • In formulations and in the use forms prepared from these formulations, the modulating agent may be in a mixture with other active compounds, such as pesticidal agents (e.g., insecticides, sterilants, acaricides, nematicides, molluscicides, or fungicides; see, e.g., pesticides listed in table 12), attractants, growth-regulating substances, or herbicides. As used herein, the term “pesticidal agent” refers to any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest. A pesticide can be a chemical substance or biological agent used against pests including insects, pathogens, weeds, and microbes that compete with humans for food, destroy property, spread disease, or are a nuisance. The term “pesticidal agent” may further encompass other bioactive molecules such as antibiotics, antivirals pesticides, antifungals, antihelminthics, nutrients, pollen, sucrose, and/or agents that stun or slow insect movement.
  • In instances where the modulating agent is applied to plants, a mixture with other known compounds, such as herbicides, fertilizers, growth regulators, safeners, semiochemicals, or else with agents for improving plant properties is also possible.
  • V. Delivery
  • A host described herein can be exposed to any of the compositions described herein in any suitable manner that permits delivering or administering the composition to the insect. The modulating agent may be delivered either alone or in combination with other active or inactive substances and may be applied by, for example, spraying, microinjection, through plants, pouring, dipping, in the form of concentrated liquids, gels, solutions, suspensions, sprays, powders, pellets, briquettes, bricks and the like, formulated to deliver an effective concentration of the modulating agent. Amounts and locations for application of the compositions described herein are generally determined by the habits of the host, the lifecycle stage at which the microorganisms of the host can be targeted by the modulating agent, the site where the application is to be made, and the physical and functional characteristics of the modulating agent. The modulating agents described herein may be administered to the insect by oral ingestion, but may also be administered by means which permit penetration through the cuticle or penetration of the insect respiratory system.
  • In some instances, the insect can be simply “soaked” or “sprayed” with a solution including the modulating agent. Alternatively, the modulating agent can be linked to a food component (e.g., comestible) of the insect for ease of delivery and/or in order to increase uptake of the modulating agent by the insect. Methods for oral introduction include, for example, directly mixing a modulating agent with the insects food, spraying the modulating agent in the insect's habitat or field, as well as engineered approaches in which a species that is used as food is engineered to express a modulating agent, then fed to the insect to be affected. In some instances, for example, the modulating agent composition can be incorporated into, or overlaid on the top of, the insect's diet. For example, the modulating agent composition can be sprayed onto a field of crops which an insect inhabits.
  • In some instances, the composition is sprayed directly onto a plant e.g., crops, by e.g., backpack spraying, aerial spraying, crop spraying/dusting etc. In instances where the modulating agent is delivered to a plant, the plant receiving the modulating agent may be at any stage of plant growth. For example, formulated modulating agents can be applied as a seed-coating or root treatment in early stages of plant growth or as a total plant treatment at later stages of the crop cycle. In some instances, the modulating agent may be applied as a topical agent to a plant, such that the host insect ingests or otherwise comes in contact with the plant upon interacting with the plant.
  • Further, the modulating agent may be applied (e.g., in the soil in which a plant grows, or in the water that is used to water the plant) as a systemic agent that is absorbed and distributed through the tissues (e.g., stems or leafs) of a plant or animal host, such that an insect feeding thereon will obtain an effective dose of the modulating agent. In some instances, plants or food organisms may be genetically transformed to express the modulating agent such that a host feeding upon the plant or food organism will ingest the modulating agent.
  • Delayed or continuous release can also be accomplished by coating the modulating agent or a composition containing the modulating agent(s) with a dissolvable or bioerodable coating layer, such as gelatin, which coating dissolves or erodes in the environment of use, to then make the modulating agent available, or by dispersing the agent in a dissolvable or erodable matrix. Such continuous release and/or dispensing means devices may be advantageously employed to consistently maintain an effective concentration of one or more of the modulating agents described herein in a specific host habitat.
  • The modulating agent can also be incorporated into the medium in which the insect grows, lives, reproduces, feeds, or infests. For example, a modulating agent can be incorporated into a food container, feeding station, protective wrapping, or a hive. For some applications the modulating agent may be bound to a solid support for application in powder form or in a “trap” or “feeding station.” As an example, for applications where the composition is to be used in a trap or as bait for a particular host insect, the compositions may also be bound to a solid support or encapsulated in a time-release material. For example, the compositions described herein can be administered by delivering the composition to at least one habitat where a vector (e.g., a vector of an animal pathogen, e.g., a mosquito, mite, biting louse, or tick) grows, lives, reproduces, feeds, or infests.
  • VI. Screening
  • Included herein are methods for screening for modulating agents that are effective to alter the microbiota of a host (e.g., insect) and thereby decrease host fitness. The screening assays provided herein may be effective to identify one or more modulating agents (e.g., phage) that target symbiotic microorganisms resident in the host and thereby decrease the fitness of the host. For example, the identified modulating agent (e.g., phage) may be effective to decrease the viability of pesticide- or allelochemical-degrading microorganisms (e.g., bacteria, e.g., a bacterium that degrade a pesticide listed in Table 12), thereby increasing the hosts sensitivity to a pesticide (e.g., sensitivity to a pesticide listed in Table 12) or allelochemical agent.
  • For example, a phage library may be screened to identify a phage that targets a specific endosymbiotic microorganism resident in a host. In some instances, the phage library may be provided in the form of one or more environmental samples (e.g., soil, pond sediments, or sewage water). Alternatively, the phage library may be generated from laboratory isolates. The phage library may be co-cultured with a target bacterial strain. After incubation with the bacterial strain, phage that successfully infect and lyse the target bacteria are enriched in the culture media. The phage-enriched culture may be sub-cultured with additional bacteria any number of times to further enrich for phage of interest. The phage may be isolated for use as a modulating agent in any of the methods or compositions described herein, wherein the phage alters the microbiota of the host in a manner that decreases host fitness.
  • TABLE 12
    Pesticides
    Aclonifen
    Acetamiprid
    Alanycarb
    Amidosulfuron
    Aminocyclopyrachlor
    Amisulbrom
    Anthraquinone
    Asulam, sodium salt
    Benfuracarb
    Bensulide
    beta-HCH; beta-BCH
    Bioresmethrin
    Blasticidin-S
    Borax; disodium tetraborate
    Boric acid
    Bromoxynil heptanoate
    Bromoxynil octanoate
    Carbosulfan
    Chlorantraniliprole
    Chlordimeform
    Chlorfluazuron
    Chlorphropham
    Climbazole
    Clopyralid
    Copper (II) hydroxide
    Cyflufenamid
    Cyhalothrin
    Cyhalothrin, gamma
    Decahydrate
    Diafenthiuron
    Dimefuron
    Dimoxystrobin
    Dinotefuran
    Diquat dichloride
    Dithianon
    E-Phosphamidon
    EPTC
    Ethaboxam
    Ethirimol
    Fenchlorazole-ethyl
    Fenothiocarb
    Fenitrothion
    Fenpropidin
    Fluazolate
    Flufenoxuron
    Flumetralin
    Fluxapyroxad
    Fuberidazole
    Glufosinate-ammonium
    Glyphosate
    Group: Borax, borate salts (see
    Group: Paraffin oils, Mineral
    Halfenprox
    Imiprothrin
    Imidacloprid
    Ipconazole
    Isopyrazam
    Isopyrazam
    Lenacil
    Magnesium phosphide
    Metaflumizone
    Metazachlor
    Metazachlor
    Metobromuron
    Metoxuron
    Metsulfuron-methyl
    Milbemectin
    Naled
    Napropamide
    Nicosulfuron
    Nitenpyram
    Nitrobenzene
    o-phenylphenol
    oils
    Oxadiargyl
    Oxycarboxin
    Paraffin oil
    Penconazole
    Pendimethalin
    Penflufen
    Penflufen
    Pentachlorbenzene
    Penthiopyrad
    Penthiopyrad
    Pirimiphos-methyl
    Prallethrin
    Profenofos
    Proquinazid
    Prothiofos
    Pyraclofos
    Pyrazachlor
    Pyrazophos
    Pyridaben
    Pyridalyl
    Pyridiphenthion
    Pyrifenox
    Quinmerac
    Rotenone
    Sedaxane
    Sedaxane
    Silafluofen
    Sintofen
    Spinetoram
    Sulfoxaflor
    Temephos
    Thiocloprid
    Thiamethoxam
    Tolfenpyrad
    Tralomethrin
    Tributyltin
    compounds
    Tridiphane
    Triflumizole
    Validamycin
    Zinc phosphide
  • EXAMPLES
  • The following is an example of the methods of the invention. It is understood that various other embodiments may be practiced, given the general description provided above.
  • Example 1: Treatment of the Aedes vexans Mosquito with an Antibiotic Solution
  • This Example demonstrates the ability to kill or decrease the fitness of the Aedes vexans mosquitoes by treatment with doxycycline, a broad spectrum antibiotic that inhibits protein production. The effect of doxycycline on mosquitoes is mediated through the modulation of bacterial populations endogenous to the mosquito that are sensitive to doxycycline. One targeted bacterial strain is Wolbachia.
  • Successful control and eradication of porcine reproductive and respiratory syndrome virus (PRRSV) is of great importance to the global swine industry today. To reduce the risk of PRRSV entry, swine producers utilize stringent measures to enhance the biosecurity of their farms; however, infection of PRRSV in swine herds still frequently occurs. One vector of transmission of PRRSV is the Aedes vexans mosquito. Aedes vexans is a cosmopolitan and common pest mosquito. On top of PRRSV, it is also a known vector of Dirofilaria immitis (dog heartworm); Myxomatosis (deadly rabbit virus disease) and Eastern equine encephalitis (deadly horse virus disease in the USA). Aedes vexans is the most common mosquito in Europe, often composing more than 80% the European mosquito community. Its abundance depends upon availability of floodwater pools. In summer, mosquito traps can collect up to 8,000 mosquitoes per trap per night.
  • Therapeutic Design:
  • Blood meals mixed with doxycycline solutions are formulated with final antibiotic concentrations of 0 (negative control), 1, 10, or 50 μg/ml in 1 mL of blood
  • Experimental Design:
  • To prepare for the treatment, mosquitoes are grown in a lab environment and medium. Experiments are performed with female mosquitoes from an Aedes vexans, originally established from field mosquitoes collected on a field of the University of Minnesota St. Paul campus, maintained on human blood and fed as adults with, 5% fructose. Doxycycline solutions are made by dissolving doxycycline (SIGMA-ALDRICH, D9891) in sterile water. Different volumes of a doxycycline solution are added to fresh blood to total 1 mL in preparation for blood meals. The final doxycycline concentrations in the blood are approximately 0 (control solution), 1, 10 or 50 μg/ml.
  • For each replicate, age-matched, 2- to 3-day-old mosquitoes are offered a control or experimental blood meal from a membrane-feeding device (2 ml Eppendorf tube) covered with parafilm and kept at 37° C. Nonengorged mosquitoes are discarded. Meals are given every four days for a total of three blood meals. Between the blood meals, mosquitoes are provided with a cotton pad moistened with distilled water for oviposition. Unfed mosquitoes are not removed after the second and later blood meals. Deaths are counted daily and carcasses are removed and stored for Wolbachia analysis as described herein. At least 50 mosquitoes per concentration of doxycycline are used for each replicate. At the end of the last blood meal, mosquitoes are kept for 12 hours before dissection.
  • Microbiota Analysis by Quantitative Polymerase Chain Reaction:
  • Before dissection, mosquitoes are immersed in 70% ethanol for 5 minutes then rinsed 3 times in sterile phosphate-buffered saline (PBS) to kill and remove surface bacteria, thus minimizing sample contamination with cuticle bacteria during dissection. The midgut of each mosquito (control and doxycycline treatment) is removed and frozen immediately on dry ice and stored at 20° C. until processing. Midguts are only excluded from analysis if they burst and a substantial amount of the gut content is lost. Samples are homogenized in phenol-chloroform in a Precellys 24 homogenizer (Bertin) using 0.5 mm wide glass beads (Bertin) for 30 seconds at 6800 rpm and deoxy-ribonucleic acid (DNA) is extracted with phenol-chloroform. The 16S ribosomal DNA (rDNA) is used for Wolbachia quantification and is shown as a ratio of the Aedes housekeeping gene 40S ribosomal protein S7 (Vector-Base gene ID AAEL009496). Primer sequences for Wolbachia are: forward primer 5′-TCAGCCACACTGGAACTGAG-3′ (SEQ ID NO: 221) and reverse primer 5′-TAACGCTAGCCCTCTCCGTA-3′ (SEQ ID NO: 222), and for S7: forward 5′-AAGGTCGACACCTTCACGTC-3′ (SEQ ID NO: 223) and reverse 5′-CCGTTTGGTGAGGGTCTTTA-3′ (SEQ ID NO: 224). Quantitative polymerase chain reaction (qPCR) is performed on a 7500 Fast Real-Time thermocycler (Applied Biosystems) using the SYBR Premix Ex Taq kit (Takara), following the manufacturer's instructions. Doxycycline treated mosquitoes show a reduction of Wolbachia specific genes.
  • The survival rates of mosquitoes treated with doxycycline solution are compared to the mosquitoes treated with the negative control. The survival rate of mosquitoes treated with doxycycline solution is decreased compared to the control.
  • Example 2: Treatment of the Anopheles Mosquito with Azithromycin Solutions
  • This Example demonstrates the ability to kill or decrease the fitness of the Anopheles coluzzii mosquitoes and decrease the transmission rate of parasites by treatment with azithromycin, relatively broad but shallow antibacterial activity. It inhibits some Gram-positive bacteria, some Gram-negative bacteria, and many atypical bacteria. The effect of azithromycin on mosquitoes is mediated through the modulation of bacterial populations endogenous to the mosquito that are sensitive to azithromycin. One targeted bacterial strain is Asaia.
  • The mosquito has been described as the most dangerous animal in the world and malaria is one mosquito-borne disease that detrimentally impacts humans. There are about 3,500 mosquito species and those that transmit malaria all belong to a sub-set called the Anopheles. Approximately 40 Anopheles species are able to transmit malaria that significantly impacts human health.
  • Therapeutic Design:
  • Blood meals mixed with azithromycin solutions are formulated with final antibiotic concentrations of 0 (negative control), 0.1, 1, or 5 μg/ml in 1 mL of blood.
  • Experimental Design:
  • To prepare for the treatment, mosquitoes are grown in a lab environment and medium. Experiments are performed with female mosquitoes from an Anopheles coluzzii Ngousso colony, originally established from field mosquitoes collected in Cameroon, maintained on human blood and fed as adults with, 5% fructose. Larvae are fed tetramin fish food. Temperature is maintained at 28° C. (±1° C.), 70-80% humidity on a 12 hr light/dark cycle.
  • Human Blood Feeding and Plasmodium Infections:
  • Plasmodium falciparum NF54 gametocytes are cultured in RPMI medium (GIBCO) including 300 mg. L-1 L-glutamine supplemented with, 50 mg/L hypoxanthine, 25 mM HEPES plus 10% heat-inactivated human serum without antibiotics. Two 25-mL cultures are started 17 and 14 days before the infection at 0.5% parasitemia in 6% v/v washed 0+red blood cells (RBCs). Media is changed daily. Before mosquito infection, centrifuged RBCs are pooled and supplemented with 20% fresh washed RBCs and human serum (2:3 v/v ratio between RBCs and serum). Mosquitoes are offered a blood meal from a membrane-feeding device (2 ml Eppendorf tube) covered with Parafilm and kept at 37° C.
  • Azithromycin solutions are made by dissolving azithromycin (SIGMA-ALDRICH, PZ0007) in DMSO. Different volumes of azithromycin solution are added to fresh blood to total 1 mL in preparation for blood meals. The final azithromycin concentrations in the blood are 0 (just solvent as control solution), 0.1, 1, or 5 μg/ml.
  • For each Plasmodium infection, at least 100 age-matched, 2- to 3-day-old, mosquitoes per condition are offered a control or experimental blood meal from a membrane-feeding device (2 ml Eppendorf tube) covered with parafilm and kept at 37° C. and nonengorged mosquitoes are removed. Meals are given every four days for a total of three blood meals. Between the blood meals, mosquitoes are provided with a cotton pad moistened with distilled water for oviposition. Unfed mosquitoes are not removed after the second and later blood meals. Deaths are counted daily and carcasses are removed and stored for Asaia analysis as described herein. At least 50 mosquitoes per concentration of azithromycin are used for each replicate. At the end of the last blood meal, mosquitoes are kept for 12 hours before dissection.
  • Microbiota Analysis by Quantitative Polymerase Chain Reaction:
  • Before dissection, mosquitoes are immersed in 70% ethanol for 5 minutes then rinsed 3 times in sterile phosphate-buffered saline (PBS) to kill and remove surface bacteria, thus minimizing sample contamination with cuticle bacteria during dissection. The midgut of each mosquitoe (control and azithromycin treatment) is removed and frozen immediately on dry ice and stored at 20° C. until processing. Midguts are only excluded from analysis if they burst and a substantial amount of the gut content is lost. Samples are homogenized in phenol-chloroform in a Precellys 24 homogenizer (Bertin) using 0.5 mm-wide glass beads (Bertin) for 30 seconds at 6800 rpm and deoxy-ribonucleic acid (DNA) is extracted with phenol-chloroform. The 16S ribosomal DNA (rDNA) is used for Asaia quantification and is shown as a ratio of the Anopheles housekeeping gene 40S ribosomal protein S7 (Vector-Base gene ID AGAP010592). Primer sequences for Asaia are: forward 5′-GTGCCGATCTCTAAAAGCCGTCTCA-3′ (SEQ ID NO:248) and reverse 5′-TTCGCTCACCGGCTTCGGGT-3′ (SEQ ID NO: 249), and for S7: forward 5′-GTGCGCGAGTTGGAGAAGA-3′ (SEQ ID NO: 250) and reverse 5′-ATCGGTTTGGGCAGAATGC-3′ (SEQ ID NO: 251). Quantitative polymerase chain reaction (qPCR) is performed on a 7500 Fast Real-Time thermocycler (Applied Biosystems) using the SYBR Premix Ex Taq kit (Takara), following the manufacturer's instructions. Azithromycin treated mosquitoes show a reduction of Asaia specific genes.
  • The survival rates of mosquitoes treated with azithromycin are compared to the mosquitoes treated with the negative control. The survival rate of mosquitoes treated with azithromycin solution is decreased compared to the control.
  • Example 3: Treatment of the Dermacentor andersoni, with an Antibiotic Solution
  • This Example demonstrates the ability to kill or decrease the fitness of the tick, Dermacentor andersoni, by treatment with Liquamycin LA-200 oxytetracycline, a broad spectrum antibiotic commonly used to treat a broad range of bacterial infections in cattle. The effect of Liquamycin LA-200 oxytetracycline on ticks is mediated through the modulation of bacterial populations endogenous to the tick that are sensitive to Liquamycin LA-200 oxytetracycline. One targeted bacterial strain is Rickettsia.
  • Ticks are obligate hematophagous arthropods that feed on vertebrates and cause great economic losses to livestock due to their ability to transmit diseases to humans and animals. In particular, ticks transmit pathogens throughout all continents and are labeled as principle vectors of zoonotic pathogens. In fact, 415 new tick-borne bacterial pathogens have been discovered since Lyme disease was characterized in 1982. Dermacentor andersoni, the Rocky Mountain wood tick, has been labeled a ‘veritable Pandora's box of disease-producing agents’ and transmits several pathogens, including Rickettsia rickettsii and Francisella tularensis. It is also a vector of Anaplasma marginale, the agent of anaplasmosis, and the most widespread tick-borne pathogen of livestock worldwide (Gall et al., The ISME Journal 10:1846-1855, 2016). Economic losses due to anaplasmosis in cattle are estimated to be $300 million per year in the United States (Rochon et al., J. Med. Entomol. 49:253-261, 2012).
  • Therapeutic design: A therapeutic dose (11 mg/kg of body weight) of Liquamycin LA-200 oxytetracycline injection on −4, −1, +3 and +5 days post application of ticks.
  • Experimental Design:
  • Questing adult D. andersoni are collected by flag and drag techniques at sites in Burns, Oreg. and Lake Como, Mont. as described in (Scoles et al., J. Med. Entomol. 42:153-162, 2005). Field collected ticks are used to establish laboratory colonies. For tick bacteria analysis, a cohort of adult F1 or F2 male ticks from each colony is fed on a Holstein calf and dissected to collect midguts (MG) and salivary glands (SG) for genomic DNA isolation and bacteria quantification as follows:
  • A cohort of F1 ticks are fed on either antibiotic-treated calves or untreated calves (control). The antibiotic-treated calves received a therapeutic dose (11 mg/kg of body weight) of Liquamycin LA-200 oxytetracycline injections on −4, −1, +3 and +5 days post application of ticks, whereas untreated calves did not receive any injections (untreated control). Females ticks are allowed to oviposit to continue a second generation of the untreated and treated ticks (F2 generation). The F2 treated generation arose from F1 adults that are exposed to antibiotics. The F2 ticks are not subjected to antibiotics.
  • F1 and F2 generation adult male ticks are fed for 7 days and then dissected within 24 h. Deaths are counted daily and ticks are removed and stored for Rickettsia analysis as described herein. Before dissection, the ticks are surface sterilized and all dissection tools are sterilized between each dissection. Tick MG and SG are dissected and pooled in groups of 30 with three biological replicates. Tissues are stored in Cell Lysis Solution (Qiagen, Valencia, Calif., USA) and Proteinase K (1.25 mg/ml). Genomic DNA is isolated using the PureGene Extraction kit (Qiagen) according to the manufacturer's specifications.
  • Quantitative Analysis of Rickettsia bellii:
  • To quantify Rickettsia, rickA gene copy numbers are measured using SYBR Green quantitative PCR of non-treated and antibiotic treated in F1 and F2 ticks. The quantity of Rickettsia is determined using Forward (5′-TACGCCACTCCCTGTGT CA-3′; SEQ ID NO: 225) and Reverse (5′-GATGTAACGGTATTAC ACCAACAG-3′; SEQ ID NO: 226) primers. The bacterial quantity is measured in F1 and F2 MG and SG of the pooled samples. Quantitative polymerase chain reaction (qPCR) is performed on a 7500 Fast Real-Time thermocycler (Applied Biosystems) using the SYBR Premix Ex Taq kit (Takara), following the manufacturer's instructions. Liquamycin LA-200 oxytetracycline treated ticks show a reduction of Rickettsia specific genes.
  • The survival rates of ticks treated with antibiotic solution are compared to the ticks untreated. The survival rate of ticks treated with Liquamycin LA-200 oxytetracycline solution is decreased compared to the untreated.
  • Example 4: Treatment of Mites that Infect Livestock with Rifampicin Solutions
  • This Example demonstrates the ability to kill or decrease the fitness of mites by treating them with an antibiotic solution. This Example demonstrates that the effect of oxytetracycline on mites is mediated through the modulation of bacterial populations endogenous, such as Bacillus, to the mites that are sensitive to oxytetracycline.
  • Sarcoptic mange is caused by mites that infest animals by burrowing deeply into the skin and laying eggs inside the burrows. The eggs hatch into the larval stage. The larval mites then leave the burrows, move up to the skin surface, and begin forming new burrows in healthy skin tissue. Development from egg to adult is completed in about 2 weeks. The lesions resulting from infestations by these mites are a consequence of the reaction of the animals' immune system to the mites' presence. Because of the intensity of the animals' immunological response, it takes only a small number of mites to produce widespread lesions and generalized dermatitis. While mites can be killed with chemically synthesized miticides, these types of chemicals must sprayed on every animal in the herd with high-pressure hydraulic spray equipment to ensure penetration by the spray into the skin. Furthermore, these types of chemical pesticides may have detrimental ecological and/or agricultural effects.
  • Therapeutic Design:
  • Oxytetracycline solution is formulated with 0 (negative control), 1, 10, or 50 μg/ml in 10 mL of sterile water with 0.5% sucrose and essential amino acids.
  • Experimental Design:
  • To determine whether adult mites at the reproductive stage have different susceptibility compared to phoretic mites or their offspring because their cuticle is not hardened, mites living on livestock and mites associated with larvae and pupae are collected. This assay tests antibiotic solutions on different types of mites and determines how their fitness is altered by targeting endogenous microbes, such as Bacillus.
  • The brood mites are collected from mite-infested pigs. Skin samples are collected by gently scraping and lifting off encrusted areas from the inner ear area of the pig with a sharpened teaspoon and subsequently examined for mites.
  • Mites are grouped per age and assayed separately. The age is determined based on the morphology and pigmentation of the larva or the pupa as follows: mites collected from spinning larvae that are small enough to move around are grouped into Group 1; mites collected from stretched larvae, which are too big to lay in the cell and start to stretch upright with their mouth in the direction of the cell opening, are grouped into Group 2; and mites collected from pupae are grouped into Group 3. Mites are stored on their host larva or pupa in glass Petri dishes until 50 units are collected. This ensures their feeding routine and physiological status remains unchanged. To prevent mites from straying from their host larva or pupa or climbing onto one another, only hosts at the same development stage are kept in the same dish.
  • The equipment—a stainless steel ring (56 mm inner diameter, 2-3 mm height) and 2 glass circles (62 mm diameter)—is cleaned with acetone and hexane or pentane to form the testing arena. The oxytetracycline solutions and control solution are applied on the equipment by spraying the glass disks and ring of the arena homogeneously. For this, a reservoir is loaded with 1 ml of the solutions; the distance of the sprayed surface from the bottom end of the tube is set at 11 mm and a 0.0275 inch nozzle is used. The pressure is adjusted (usually in the range 350-500 hPa) until the amount of solution deposited is 1±0.05 mg/cm2. The antibiotic solutions are poured in their respective dishes, covering the whole bottom of the dishes, and residual liquid is evaporated under a fume hood. The ring is placed between the glass circles to build a cage. The cages are used within 60 hr of preparation, for not more than three assays, in order to control the exposure of mites to antibiotic solutions. 10 to 15 mites are introduced in this cage and the equipment pieces are bound together with droplets of melted wax. Mites collected from spinning larvae, stretched larvae, white eyed pupae and dark eyed with white and pale body are used.
  • After 4 hours, mites are transferred into a clean glass Petri dish (60 mm diameter) with two or three white eye pupae (4-5 days after capping) to feed on. The mites are observed under a dissecting microscope at 4 hr, 24 hr, and 48 hr after being treated with the antibiotic or the control solutions, and classified according to the following categories:
      • Mobile: they walk around when on their legs, whether after being poked by a needle.
      • Paralyzed: they move one or more appendages, unstimulated or after stimulation, but they cannot move around.
      • Dead: immobile and do not react to 3 subsequent stimulations.
  • A sterile toothpick or needle is used to stimulate the mites by touching their legs. New tooth picks or sterile needles are used for stimulating each group to avoid contamination between mite groups.
  • The assays are carried out at 32.5° C. and 60-70% relative humidity. If the mortality in the controls exceeds 30%, the replicate is excluded. Each experiment is replicated with four series of cages.
  • The status of Bacillus in mite groups is assessed by PCR. Total DNA is isolated from control (non-oxytetracycline treated) and oxytetracyline treated individuals (whole body) using a DNA Kit (OMEGA, Bio-tek) according to the manufacturer's protocol. The primers for Bacillus, forward primer 5′-GAGGTAGACGAAGCGACCTG-3′ (SEQ ID NO: 233) and reverse primer 5′-TTCCCTCACGGTACTGGTTC-3′ (SEQ ID NO: 234), are designed based on 23S-5S rRNA sequences obtained from the Bacillus genome (Accession Number: AP007209.1) (Takeno et al., J. Bacteriol. 194(17):4767-4768, 2012) using Primer 5.0 software (Primer-E Ltd., Plymouth, UK). The PCR amplification cycles included an initial denaturation step at 95° C. for 5 min, 35 cycles of 95° C. for 1 min, 59° C. for 1 min, and 72° C. for 2 min, and a final extension step of 5 min at 72° C. Amplification products from oxytetracyline treated and control samples are analyzed on 1% agarose gels, stained with SYBR safe, and visualized using an imaging System.
  • The survival rates of mites treated with an oxytetracyline solution are compared to the Varroa mites treated with the negative control.
  • The survival rate and the mobility of mites treated with oxytetracyline solution are expected to be decreased compared to the control.
  • Example 5: Production of a Phage Library
  • This Example demonstrates the acquisition of a phage collection from environmental samples.
  • Therapeutic Design:
  • Phage library collection having the following phage families: Myoviridae, Siphoviridae, Podoviridae, Lipothrixviridae, Rudiviridae, Ampullaviridae, Bicaudaviridae, Clavaviridae, Corticoviridae, Cystoviridae, Fuselloviridae, Gluboloviridae, Guttaviridae, Inoviridae, Leviviridae, Microviridae, Plasmaviridae, Tectiviridae
  • Experimental Design:
  • Multiple environmental samples (soil, pond sediments, sewage water) are collected in sterile 1 L flasks over a period of 2 weeks and are immediately processed as described below after collection and stored thereafter at 4° C. Solid samples are homogenized in sterile double-strength difco luria broth (LB) or tryptic soy broth (TSB) supplemented with 2 mM CaCl2) to a final volume of 100 mL. The pH and phosphate levels are measured using phosphate test strips. For purification, all samples are centrifuged at 3000-6000 g in a Megafuge 1.0R, Heraeus, or in Eppendorf centrifuge 5702 R, for 10-15 min at +4° C., and filtered through 0.2-μm low protein filters to remove all remaining bacterial cells. The supernatant is stored at 4° C. in the presence of chloroform in a glass bottle.
  • Example 6: Identification of Target Specific Phage
  • This Example demonstrates the isolation, purification, and identification of single target specific phages from a heterogeneous phage library.
  • Experimental Design:
  • 20-30 ml of the phage library described in Example 5 is diluted to a volume of 30-40 ml with LB-broth. The target bacterial strain, e.g., Buchnera, is added (50-200 μl overnight culture grown in LB-broth) to enrich phages that target this specific bacterial strain in the culture. This culture is incubated overnight at +37° C., shaken at 230 rpm. Bacteria from this enrichment culture are removed by centrifugation (3000-6000 g in Megafuge 1.0R, Heraeus, or in Eppendorf centrifuge 5702 R, 15-20 min, +4° C.) and filtered (0.2 or 0.45 μm filter). 2.5 ml of the bacteria free culture is added to 2.5 ml of LB-broth and 50-100 μl of the target bacteria to enrich the phages. The enrichment culture is grown overnight as above. A sample from this enrichment culture is centrifuged at 13,000 g for 15 min at room temperature and 10 μl of the supernatant is plated on a LB-agar containing petri dish along with 100-300 μl of the target bacteria and 3 ml of melted 0.7% soft-agar. The plates are incubated overnight at +37° C. Each of the plaques observed on the bacterial lawn are picked and transferred into 500 μl of LB-broth. A sample from this plaque-stock is further plated on the target bacteria. Plaque-purification is performed three times for all discovered phages in order to isolate a single homogenous phage from the heterogeneous phage mix.
  • Lysates from plates with high-titer phages (>1×10{circumflex over ( )}10 PFU/ml) are prepared by harvesting overlay plates of a host bacterium strain exhibiting confluent lysis. After being flooded with, 5 ml of buffer, the soft agar overlay is macerated, clarified by centrifugation, and filter sterilized. The resulting lysates are stored at 4° C. High-titer phage lysates are further purified by isopycnic CsCl centrifugation, as described in (Summer et al., J. Bacteriol. 192:179-190, 2010).
  • DNA is isolated from CsCl-purified phage suspensions as described in (Summer, Methods Mol. Biol. 502:27-46, 2009). An individual isolated phage is sequenced as part of two pools of phage genomes by using a 454 pyrosequencing method. Phage genomic DNA is mixed in equimolar amounts to a final concentration of about 100 ng/L. The pooled DNA is sheared, ligated with a multiplex identifier (MID) tag specific for each of the pools, and sequenced by pyrosequencing using a full-plate reaction on a Roche FLX Titanium sequencer according to the manufacturer's protocols. The pooled phage DNA is present in two sequencing reactions. The trimmed FLX Titanium flow-gram output corresponding to each of the pools is assembled individually by using Newbler Assembler version 2.5.3 (454 Life Sciences), by adjusting the settings to include only reads containing a single MID per assembly. The identity of individual contigs is determined by PCR using primers generated against contig sequences and individual phage genomic DNA preparations as the template. Sequencher 4.8 (Gene Codes Corporation) is used for sequence assembly and editing. Phage chromosomal end structures are determined experimentally. Cohesive (cos) ends for phages are determined by sequencing off the ends of the phage genome and sequencing the PCR products derived by amplification through the ligated junction of circularized genomic DNA, as described in (Summer, Methods Mol. Biol. 502:27-46, 2009). Protein-coding regions are initially predicted using GeneMark.hmm (Lukashin et al. Nucleic Acids Res. 26:1107-1115, 1998), refined through manual analysis in Artemis (Rutherford et al., Bioinformatics 16:944-945, 2000.), and analyzed through the use of BLAST (E value cutoff of 0.005) (Camacho et al., BMC Bioinformatics 10:421, 2009). Proteins of particular interest are additionally analyzed by InterProScan (Hunter et al., Nucleic Acids Res. 40:D306-D312, 2012).
  • Electron microscopy of CsCl-purified phage (>1×10{circumflex over ( )}11 PFU/ml) that lysed the endosymbiotic bacteria, Buchnera, is performed by diluting stock with the tryptic soy broth buffer. Phages are applied onto thin 400-mesh carbon-coated Formvar grids, stained with 2% (wt/vol) uranyl acetate, and air dried. Specimens are observed on a JEOL 1200EX transmission electron microscope operating at an acceleration voltage of 100 kV. Five virions of each phage are measured to calculate mean values and standard deviations for dimensions of capsid and tail, where appropriate.
  • Example 7: Treatment of Aphids with a Solution of Purified Phages
  • This Example demonstrates the ability to kill or decrease the fitness of aphids by treating them with a phage solution. This Example demonstrates that the effect of phage on aphids is mediated through the modulation of bacterial populations endogenous to the aphid that are sensitive to phages. One targeted bacterial strain is Buchnera with the phage identified in Example 6.
  • Aphids are representative species for testing microbiota modulating agents and effects on fitness of the aphids.
  • Therapeutic Design:
  • Phage solutions are formulated with 0 (negative control), 102, 105, or 108 plaque-forming units (pfu)/ml phage from Example 6 in 10 mL of sterile water with 0.5% sucrose and essential amino acids.
  • Experimental Design:
  • To prepare for the treatment, aphids are grown in a lab environment and medium. In a climate-controlled room (16 h light photoperiod; 60±5% RH; 20±2° C.), fava bean plants are grown in a mixture of vermiculite and perlite at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants are distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, second and third instar aphids are collected from healthy plants and divided into treatments so that each treatment receives approximately the same number of individuals from each of the collection plants.
  • Phage solutions are prepared as described herein. Wells of a 96-well plate are filled with 200 μl of artificial aphid diet (Febvay et al., Canadian Journal of Zoology 66(11):2449-2453, 1988) and the plate is covered with parafilm to make a feeding sachet. Artificial diet is either mixed with sterile water and with 0.5% sucrose and essential amino acids as a negative control or phage solutions with varying concentrations of phages. Phage solutions are mixed with artificial diet to get final concentrations of phages between 102 to 108 (pfu)/ml.
  • For each replicate treatment, 30-50 second and third instar aphids are placed individually in wells of a 96-well plate and a feeding sachet plate is inverted above them, allowing the insects to feed through the parafilm and keeping them restricted to individual wells. Experimental aphids are kept under the same environmental conditions as aphid colonies. After the aphids are fed for 24 hr, the feeding sachet is replaced with a new one containing sterile artificial diet and a new sterile sachet is provided every 24 h for 4 days. At the time that the sachet is replaced, aphids are also checked for mortality. An aphid is counted as dead if it had turned brown or is at the bottom of the well and does not move during the observation. If an aphid is on the parafilm of the feeding sachet but not moving, it is assumed to be feeding and alive.
  • The status of Buchnera in aphid samples is assessed by PCR. Aphids adults from the negative control (non-phage treated) and phage treated groups are first surface-sterilized with 70% ethanol for 1 min, 10% bleach for 1 min and three washes of ultrapure water for 1 min. Total DNA is extracted from each individual (whole body) using an Insect DNA Kit (OMEGA, Bio-tek) according to the manufacturer's protocol. The primers for Buchnera, forward primer 5′-GTCGGCTCATCACATCC-3′ (SEQ ID NO: 235) and reverse primer 5′-TTCCGTCTGTATTATCTCCT-3′ (SEQ ID NO: 236), are designed based on 23S-5S rRNA sequences obtained from the Buchnera genome (Accession Number: GCA_000009605.1) (Shigenobu et al., Nature 407:81-86, 2000) using Primer 5.0 software (Primer-E Ltd., Plymouth, UK). The PCR amplification cycles included an initial denaturation step at 95° C. for 5 min, 35 cycles of 95° C. for 30 s, 55° C. for 30 s, and 72° C. for 60 s, and a final extension step of 10 min at 72° C. Amplification products from rifampicin treated and control samples are analyzed on 1% agarose gels, stained with SYBR safe, and visualized using an imaging System. Phage treated aphids show a reduction of Buchnera specific genes.
  • The survival rates of aphids treated with Buchnera specific phages are compared to the aphids treated with the negative control. The survival rate of aphids treated with Buchnera specific phages is decreased as compared to the control treated aphids.
  • Example 8: Production of a ColA Bacteriocin Solution
  • This Example demonstrates the production and purification of colA bacteriocin.
  • Construct Sequence:
  • (SEQ ID NO: 237)
    catatgatgacccgcaccatgctgtttctggcgtgcgtggcggcgct
    gtatgtgtgcattagcgcgaccgcgggcaaaccggaagaatttgcga
    aactgagcgatgaagcgccgagcaacgatcaggcgatgtatgaaagc
    attcagcgctatcgccgctttgtggatggcaaccgctataacggcgg
    ccagcagcagcagcagcagccgaaacagtgggaagtgcgcccggatc
    tgagccgcgatcagcgcggcaacaccaaagcgcaggtggaaattaac
    aaaaaaggcgataaccatgatattaacgcgggctggggcaaaaacat
    taacggcccggatagccataaagatacctggcatgtgggcggcagcg
    tgcgctggctcgag
  • Experimental Design:
  • DNA is generated by PCR with specific primers with upstream (NdeI) and downstream (XhoI) restriction sites. Forward primer GTATCTATTCCCGTCTACGAACATATGGAATTCC (SEQ ID NO: 238) and reverse primer CCGCTCGAGCCATCTGACACTTCCTCCAA (SEQ ID NO: 239). Purified PCR fragments (Nucleospin Extract II-Macherey Nagel) are digested with NdeI or XhoI and then the fragments are ligated. For colA cloning, the ligated DNA fragment is cloned into per2.1 (GenBank database accession number EY122872) vector (Anselme et al., BMC Biol. 6:43, 2008). The nucleotide sequence is systematically checked (Cogenics).
  • The plasmid with colA sequence is expressed in BL21 (DE3)/pLys. Bacteria are grown in LB broth at 30° C. At an OD600 of 0.9, isopropyl β-D-1-thiogalactopyranoside (IPTG) is added to a final concentration of 1 mM and cells were grown for 6 h. Bacteria are lysed by sonication in 100 mM NaCL, 1% Triton X-100, 100 mM Tris-base pH 9.5, and proteins are loaded onto a HisTrap HP column (GE Healthcare). The column is washed successively with 100 mM NaCl, 100 mM Tris-HCl pH 6.8, and PBS. Elution is performed with 0.3M imidazol in PBS. Desalting PD-10 columns (GE Healthcare) are used to eliminate imidazol and PBS solubilized peptides are concentrated on centrifugal filter units (Millipore).
  • ColA Protein Sequence:
  • (SEQ ID NO: 211)
    MTRTMLFLAC VAALYVCISA TAGKPEEFAK LSDEAPSNDQ
    AMYESIQRYR RFVDGNRYNG GQQQQQQPKQ WEVRPDLSRD
    QRGNTKAQVE INKKGDNHDI NAGWGKNING PDSHKDTWHV
    GGSVRW
  • Example 9: Treatment of Aphids with a Solution of colA Bacteriocin
  • This Example demonstrates the ability to kill or decrease the fitness of aphids by treating them with a bacteriocin solution. This Example demonstrates that the effect of bacteriocins on aphids is mediated through the modulation of bacterial populations endogenous to the aphid that are sensitive to ColA bacteriocin. One targeted bacterial strain is Buchnera with the bacteriocin produced in Example 8.
  • Therapeutic Design:
  • ColA solutions are formulated with 0 (negative control), 0.6, 1, 50 or 100 mg/ml of ColA from Example 8 in 10 mL of sterile water with 0.5% sucrose and essential amino acids.
  • Experimental Design:
  • To prepare for the treatment, aphids are grown in a lab environment and medium. In a climate-controlled room (16 h light photoperiod; 60±5% RH; 20±2° C.), plants are grown in a mixture of vermiculite and perlite and are infested with aphids. In the same climatic conditions, E. balteatus larvae are obtained from a mass production; the hoverflies are reared with sugar, pollen and water; and the oviposition is induced by the introduction of infested host plants in the rearing cage during 3 h. The complete life cycle takes place on the host plants that are daily re-infested with aphids.
  • Wells of a 96-well plate are filled with 200 μl of artificial aphid diet (Febvay et al., Canadian Journal of Zoology 66(11):2449-2453, 1988) and the plate is covered with parafilm to make a feeding sachet. Artificial diet is either mixed with the solution of sterile water with 0.5% sucrose and essential amino acids as a negative control or ColA solutions with varying concentrations of ColA. ColA solutions are mixed with artificial diet to obtain final concentrations between 0.6 to 100 mg/ml.
  • For each replicate treatment, 30-50 second and third instar aphids are placed individually in wells of a 96-well plate and a feeding sachet plate is inverted above them, allowing the insects to feed through the parafilm and keeping them restricted to individual wells. Experimental aphids are kept under the same environmental conditions as aphid colonies. After the aphids are fed for 24 hr, the feeding sachet is replaced with a new one containing sterile artificial diet and a new sterile sachet is provided every 24 h for 4 days. At the time that the sachet is replaced, aphids are also checked for mortality. An aphid is counted as dead if it had turned brown or is at the bottom of the well and does not move during the observation. If an aphid is on the parafilm of the feeding sachet but not moving, it is assumed to be feeding and alive.
  • The status of Buchnera in aphid samples is assessed by PCR. Aphids adults from the negative control and phage treated are first surface-sterilized with 70% ethanol for 1 min, 10% bleach for 1 min and three washes of ultrapure water for 1 min. Total DNA is extracted from each individual (whole body) using an Insect DNA Kit (OMEGA, Bio-tek) according to the manufacturer's protocol. The primers for Buchnera, forward primer 5′-GTCGGCTCATCACATCC-3′ (SEQ ID NO: 235) and reverse primer 5′-TTCCGTCTGTATTATCTCCT-3′ (SEQ ID NO: 236), are designed based on 23S-5S rRNA sequences obtained from the Buchnera genome (Accession Number: GCA_000009605.1) (Shigenobu, et al., Nature 200.407, 81-86) using Primer 5.0 software (Primer-E Ltd., Plymouth, UK). The PCR amplification cycles included an initial denaturation step at 95° C. for 5 min, 35 cycles of 95° C. for 30 s, 55° C. for 30 s, and 72° C. for 60 s, and a final extension step of 10 min at 72° C. Amplification products from rifampicin treated and control samples are analyzed on 1% agarose gels, stained with SYBR safe, and visualized using an imaging System. ColA treated aphids show a reduction of Buchnera specific genes.
  • The survival rates of aphids treated with Buchnera specific ColA bacteriocin are compared to the aphids treated with the negative control. The survival rate of aphids treated with Buchnera specific ColA bacteriocin is decreased as compared to the control treated aphids.
  • Example 10: Treatment of Aphids with Rifampicin Solutions
  • This Example demonstrates the ability to kill or decrease the fitness of aphids by treating them with rifampicin, a narrow spectrum antibiotic that inhibits DNA-dependent RNA synthesis by inhibiting a bacterial RNA polymerase. This Example demonstrates that the effect of rifampicin on aphids is mediated through the modulation of bacterial populations endogenous to the aphid that are sensitive to rifampicin. One targeted bacterial strain is Buchnera.
  • Therapeutic Design:
  • The antibiotic solutions are formulated with 0 (negative control), 1, 10, or 50 μg/ml of rifampicin in 10 mL of sterile water with 0.5% sucrose and essential amino acids.
  • Experimental Design:
  • To prepare for the treatment, aphids are grown in a lab environment and medium. In a climate-controlled room (16 h light photoperiod; 60±5% RH; 20±2° C.), fava bean plants are grown in a mixture of vermiculite and perlite at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants are distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, second and third instar aphids are collected from healthy plants and divided into treatments so that each treatment receives approximately the same number of individuals from each of the collection plants.
  • Rifampicin solutions are made by dissolving rifampicin (SIGMA-ALDRICH, 557303) in sterile water with 0.5% sucrose and essential aminoacids. Wells of a 96-well plate are filled with 200 μl of artificial aphid diet (Febvay et al., Canadian Journal of Zoology 66(11):2449-2453, 1988) and the plate is covered with parafilm to make a feeding sachet. Artificial diet is either mixed with sterile water and with 0.5% sucrose and essential aminoacids as a negative control or a rifampicin solution with one of the concentrations of rifampicin. Rifampicin solutions are mixed with artificial diet to get final concentrations of the antibiotic between 1 and 50 μg/mL.
  • For each replicate treatment, 30-50 second and third instar aphids are placed individually in wells of a 96-well plate and a feeding sachet plate is inverted above them, allowing the insects to feed through the parafilm and keeping them restricted to individual wells. Experimental aphids are kept under the same environmental conditions as aphid colonies. After the aphids are fed for 24 hr, the feeding sachet is replaced with a new one containing sterile artificial diet and a new sterile sachet is provided every 24 h for four days. At the time that the sachet is replaced, aphids are also checked for mortality. An aphid is counted as dead if it had turned brown or is at the bottom of the well and does not move during the observation. If an aphid is on the parafilm of the feeding sachet but not moving, it is assumed to be feeding and alive.
  • The status of Buchnera in aphid samples is assessed by PCR. Total DNA is isolated from control (non-rifampicin treated) and rifampicin treated individuals using an Insect DNA Kit (OMEGA, Bio-tek) according to the manufacturer's protocol. The primers for Buchnera, forward primer 5′-GTCGGCTCATCACATCC-3′ (SEQ ID NO: 235) and reverse primer 5′-TTCCGTCTGTATTATCTCCT-3′ (SEQ ID NO: 236), are designed based on 23S-5S rRNA sequences obtained from the Buchnera genome (Accession Number: GCA_000009605.1) (Shigenobu et al., Nature 407:81-86, 2000) using Primer 5.0 software (Primer-E Ltd., Plymouth, UK). The PCR amplification cycles included an initial denaturation step at 95° C. for 5 min, 35 cycles of 95° C. for 30 s, 55° C. for 30 s, and 72° C. for 60 s, and a final extension step of 10 min at 72° C. Amplification products from rifampicin treated and control samples are analyzed on 1% agarose gels, stained with SYBR safe, and visualized using an imaging System. Rifampicin treated aphids show a reduction of Buchnera specific genes.
  • The survival rates of aphids treated with rifampicin solution are compared to the aphids treated with the negative control. The survival rate of aphids treated with rifampicin solution is decreased compared to the control.
  • Example 11: High Throughput Screening (HTS) for Buchnera Targeting Molecules
  • This Example demonstrates the identification of molecules that target Buchnera.
  • Experimental Design:
  • A HTS to identify inhibitors of targeted bacterial strains, Buchnera, uses sucrose fermentation in pH-MMSuc medium (Ymele-Leki et al., PLoS ONE 7(2):e31307, 2012) to decrease the pH of the medium. pH indicators in the medium monitor medium acidification spectrophotometrically through a change in absorbance at 615 nm (A615). A target bacterial strain, Buchnera, derived from a glycerol stock, is plated on an LB-agar plate and incubated overnight at 37° C. A loopful of cells is harvested, washed three times with PBS, and then resuspended in PBS at an optical density of 0.015.
  • For the HTS, 10 μL of this bacterial cell suspension is aliquoted into the wells of a 384-well plate containing 30 μL of pH-MMSuc medium and 100 nL of a test compound fraction from a natural product library of pre-fractionated extracts (39,314 extracts arrayed in 384-well plates) from microbial sources, such as fungal endophytes, bacterial endophytes, soil bacteria, and marine bacteria, described in (Ymele-Leki et al., PLoS ONE 7(2):e31307, 2012). For each assay, the A615 is measured after incubation at room temperature at 6 hr and 20 hr. This step is automated and validated in the 384-well plate format using an EnVision™ multi-well spectrophotometer to test all fractions from the library. Fractions that demonstrate delayed medium acidification by sucrose fermentation and inhibited cell growth are selected for further purification and identification.
  • Example 12: Isolation and Identification of Buchnera Specific Molecules
  • This Example demonstrates the isolation and identification of an isolate from the fraction described in Example 11 that blocks sucrose fermentation and inhibits cell growth of Buchnera.
  • Experimental Design:
  • The fraction described in Example 11 is resuspended in 90% water/methanol and passed over a C18 SPE column to get fraction I. The column is then washed with methanol to get fraction II. Fraction II is separated on an Agilent 1100 series HPLC with a preparative Phenyl-hexyl column (Phenomenex, Luna, 25 cm610 mm, 5 mm particle size) using an elution buffer with 20% acetonitrile/water with 0.1% formic acid at a flow rate of 2 mL/min for 50 minutes. This yields multiple compounds at different elution times. Spectra for each compound is obtained on an Alpha FT-IR mass spectrometer (Bruker), an Ultrospec™ 5300 pro UV/Visible Spectrophotometer (Amersham Biosciences), and an INOVA 600 MHz nuclear magnetic resonance spectrometer (Varian).
  • Example 13: Treatment of Aphids with a Solution of a Buchnera Specific Molecule
  • This Example demonstrates the ability to kill or decrease the fitness of aphids by treating them with one of the compounds identified in Example 12 through the modulation of bacterial populations endogenous to the aphid that are sensitive to this compound. One targeted bacterial strain is Buchnera.
  • Therapeutic Design:
  • Each compound from Example 12 is formulated at 0 (negative control), 0.6, 1, 20 or 80 μg/ml in 10 mL of sterile water with 0.5% sucrose and essential amino acids.
  • Experimental Design:
  • To prepare for the treatment, aphids are grown in a lab environment and medium. In a climate-controlled room (16 h light photoperiod; 60±5% RH; 20±2° C.), fava bean plants are grown in a mixture of vermiculite and perlite at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants are distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, second and third instar aphids are collected from healthy plants and divided into treatments so that each treatment receives approximately the same number of individuals from each of the collection plants.
  • Wells of a 96-well plate are filled with 200 μl of artificial aphid diet (Febvay et al., Canadian Journal of Zoology 66(11):2449-2453, 1988) and the plate is covered with parafilm to make a feeding sachet. Artificial diet is either mixed with sterile water with 0.5% sucrose and essential amino acids as a negative control or solutions with varying concentrations of the compound.
  • For each replicate treatment, 30-50 second and third instar aphids are placed individually in wells of a 96-well plate and a feeding sachet plate is inverted above them, allowing the insects to feed through the parafilm and keeping them restricted to individual wells. Experimental aphids are kept under the same environmental conditions as aphid colonies. After the aphids are fed for 24 hr, the feeding sachet is replaced with a new one containing sterile artificial diet and a new sterile sachet is provided every 24 h for 4 days. At the time that the sachet is replaced, aphids are also checked for mortality. An aphid is counted as dead if it had turned brown or is at the bottom of the well and does not move during the observation. If an aphid is on the parafilm of the feeding sachet but not moving, it is assumed to be feeding and alive.
  • The status of Buchnera in aphid samples is assessed by PCR. Aphids from the negative control and compound 1 treated are first surface-sterilized with 70% ethanol for 1 min, 10% bleach for 1 min and three washes of ultrapure water for 1 min. Total DNA is extracted from each individual (whole body) using an Insect DNA Kit (OMEGA, Bio-tek) according to the manufacturer's protocol. The primers for Buchnera, forward primer 5′-GTCGGCTCATCACATCC-3′ (SEQ ID NO: 235) and reverse primer 5′-TTCCGTCTGTATTATCTCCT-3′ (SEQ ID NO: 236), are designed based on 23S-5S rRNA sequences obtained from the Buchnera genome (Accession Number: GCA_000009605.1) (Shigenobu et al., Nature 407:81-86, 2000) using Primer 5.0 software (Primer-E Ltd., Plymouth, UK). The PCR amplification cycles included an initial denaturation step at 95° C. for 5 min, 35 cycles of 95° C. for 30 s, 55° C. for 30 s, and 72° C. for 60 s, and a final extension step of 10 min at 72° C. Amplification products from compound 1 treated and control samples are analyzed on 1% agarose gels, stained with SYBR safe, and visualized using an imaging System. Reduction of Buchnera specific genes indicates antimicrobial activity of compound 1.
  • The survival rate of aphids treated with the compound is compared to the aphids treated with the negative control. A decrease in the survival rate of aphids treated with the compound is expected to indicate antimicrobial activity of the compound.
  • Example 14: Insects Treated with an Antibiotic Solution
  • This Example demonstrates the treatment of aphids with rifampicin, a narrow spectrum antibiotic that inhibits DNA-dependent RNA synthesis by inhibiting a bacterial RNA polymerase. This Example demonstrates that the effect of rifampicin on a model insect species, aphids, was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to rifampicin. One targeted bacterial strain is Buchnera.
  • Therapeutic Design
  • The antibiotic solution was formulated according to the means of delivery, as follows (FIG. 1A-1G):
  • 1) Through the plants: with 0 (negative control) or 100 μg/ml of rifampicin formulated in an artificial diet (based on Akey and Beck, 1971; see Experimental Design) with and without essential amino acids (2 mg/ml histidine, 2 mg/ml isoleucine, 2 mg/ml leucine, 2 mg/ml lysine, 1 mg/ml methionine, 1.62 mg/ml phenylalanine, 2 mg/ml threonine, 1 mg/ml tryptophan, and 2 mg/ml valine).
  • 2) Leaf coating: 100 μl of 0.025% nonionic organosilicone surfactant solvent Silwet L-77 in water (negative control), or 100 μl of 50 μg/ml of rifampicin formulated in solvent solution was applied directly to the leaf surface and allowed to dry.
  • 3) Microinjection: injection solutions were either 0.025% nonionic organosilicone surfactant solvent Silwet L-77 in water (negative control), or 50 μg/ml of rifampicin formulated in solvent solution.
  • 4) Topical delivery: 100 μl of 0.025% nonionic organosilicone surfactant solvent Silwet L-77 (negative control), or 50 μg/ml of rifampicin formulated in solvent solution were sprayed using a 30 mL spray bottle.
  • 5) Leaf injection method A—Leaf perfusion and cutting: leaves were injected with approximately 1 ml of 50 μg/ml of rifampicin in water with food coloring or approximately 1 ml of negative control with water and food coloring. Leaves were cut into 2×2 cm squared pieces and aphids were placed on the leaf pieces.
  • 6) Leaf perfusion and delivery through plant: Leaves were injected with approximately 1 ml of 100 μg/ml of rifampicin in water plus food coloring or approximately 1 ml of negative control with water and food coloring. The stem of injected leaf was then placed into an Eppendorf tube with 1 ml of 100 μg/ml of rifampicin plus water and food coloring or 1 ml of negative control with only water and food coloring.
  • 7) Combination delivery method: a) Topical delivery to aphid and plant: via spraying both aphids and plants with 0.025% nonionic organosilicone surfactant solvent Silwet L-77 in water (negative control) or 100 μg/ml of rifampicin formulated in solvent solution using a 30 mL, b) Delivery through plant: water only (negative control) or 100 μg/ml of rifampicin formulated in water.
  • Plant Delivery Experimental Design:
  • Aphids (LSR-1 strain, Acyrthosiphon pisum) were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 25±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, first instar aphids were collected from healthy plants and divided into 3 different treatment groups: 1) artificial diet alone without essential amino acids, 2) artificial diet alone without essential amino acids and 100 μg/ml rifampicin, and 3) artificial diet with essential amino acids and 100 μg/ml rifampicin). Each treatment group received approximately the same number of individuals from each of the collection plants.
  • The artificial diet used was made as previously published (Akey and Beck, 1971 Continuous Rearing of the Pea Aphid, Acyrthosiphon pisum, on a Holidic Diet), with and without the essential amino acids (2 mg/ml histidine, 2 mg/ml isoleucine, 2 mg/ml leucine, 2 mg/ml lysine, 1 mg/ml methionine, 1.62 mg/ml phenylalanine, 2 mg/ml threonine, 1 mg/ml tryptophan, and 2 mg/ml valine), except neither diet included homoserine or beta-alanyltyrosine. The pH of the diets was adjusted to 7.5 with KOH and diets were filter sterilized through a 0.22 μm filter and stored at 4° C. for short term (<7 days) or at −80° C. for long term.
  • Rifampicin (Tokyo Chemical Industry, LTD) stock solutions were made at 25 mg/ml in methanol, sterilized by passing through a 0.22 μm syringe filter, and stored at −20° C. For treatments (see Therapeutic design), the appropriate amount of stock solution was added to the artificial diet with or without essential amino acids to obtain a final concentration of 100 μg/ml rifampicin. The diet was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf and the opening of the tube was closed using parafilm. This artificial diet feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • For each treatment, 33 aphids were placed onto each leaf. Artificial diet feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish housing the artificial feeding system when they were discovered.
  • In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th instar) was determined daily throughout the experiment. Once an aphid reached the 4th instar stage, they were given their own artificial feeding system in a deep petri dish so that fecundity could be monitored once they reached adulthood.
  • For adult aphids, new nymphs were counted daily and then discarded. At the end of the experiments, fecundity was determined as the mean number of offspring produced daily once the aphid reached adulthood. Pictures of aphids were taken throughout the experiment to evaluate size differences between treatment groups.
  • After 7 days of treatment, DNA was extracted from multiple aphids from each treatment group. Briefly, the aphid body surface was sterilized by dipping the aphid into a 6% bleach solution for approximately 5 seconds. Aphids were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and Buchnera and aphid DNA copy numbers were measured by qPCR. The primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS). The primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS). qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C. for 15 seconds, 3) 55° C. for 30 seconds, 4) repeat steps 2-3 40×, 5) 95° C. for 15 seconds, 6) 55° C. for 1 minute, 7) ramp change to 0.15 degrees C./s, 8) 95° C. for 1 second. qPCR data was analyzed using analytic (Thermo Fisher Scientific, QuantStudio Design and Analysis) software.
  • Antibiotic Treatment Delays and Stops Progression of Aphid Development
  • LSR-1 1st instar aphids were divided into three separate treatment groups as defined in Experimental Design (above). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with artificial diet alone without essential amino acids began reaching maturity (5th instar stage) at approximately 6 days (FIG. 2A). Development was delayed in aphids treated with rifampicin, and by 6 days of treatment, most aphids did not mature further than the 3rd instar stage, even after 12 days and their size is drastically affected (FIGS. 2A-2C).
  • In contrast, aphids treated with artificial diet with rifampicin supplemented with essential amino acids developed faster and to higher instar stages as compared to aphids treated with rifampicin alone, but not as quickly as aphids treated with artificial diet without essential amino acids (FIGS. 2A-2C). These data indicate that treatment with rifampicin impaired aphid development. Adding back essential amino acids partially rescued this defect in development.
  • Antibiotic Treatment Increased Aphid Mortality
  • Survival rate of aphids was also measured during the treatments. The majority of the aphids treated with artificial diet alone without essential amino acids were alive at 5 days post-treatment (FIG. 3). After 5 days, aphids began gradually dying, and some survived beyond 13 days post-treatment.
  • In contrast, aphids treated with rifampicin without essential amino acids had lower survival rates than aphids treated with artificial diet alone (p<0.00001). Rifampicin-treated aphids began dying after 1 day of treatment and all aphids succumbed to treatment by 9 days. Aphids treated with both rifampicin and essential amino acids survived longer than those treated with rifampicin alone (p=0.017). These data indicate that rifampicin treatment affected aphid survival.
  • Antibiotic Treatment Decreased Aphid Reproduction
  • Fecundity was also monitored in aphids during the treatments. By days 7 and 8 post-treatment, the majority of the adult aphids treated with artificial diet without essential amino acids began reproducing. The mean number of offspring produced daily after maturity by aphids treated with artificial diet without essential amino acids was approximately 4 (FIG. 4). In contrast, aphids treated with rifampicin with or without essential amino acids were unable to reach adulthood and produce offspring. These data indicate that rifampicin treatment resulted in a loss of aphid reproduction.
  • Antibiotic Treatment Decreased Buchnera in Aphids
  • To test whether rifampicin, specifically resulted in loss of Buchnera in aphids, and that this loss impacted aphid fitness, DNA was extracted from aphids in each treatment group after 7 days of treatment and qPCR was performed to determine the Buchnera/aphid copy numbers. Aphids treated with artificial diet alone without essential amino acids had high ratios of Buchnera/aphid DNA copies. In contrast, aphids treated with rifampicin had ˜4-fold less Buchnera/aphid DNA copies (FIG. 5), indicating that rifampicin treatment decreased Buchnera levels.
  • Leaf Coating Delivery Experimental Design
  • Rifampicin stock solution was added to 0.025% of a nonionic organosilicone surfactant solvent, Silwet L-77, to obtain a final concentration of 50 μg/ml rifampicin. Aphids (eNASCO strain, Acyrthosiphon pisum) were grown on fava bean plants as described in a previous Example. For experiments, first instar aphids were collected from healthy plants and divided into 2 different treatment groups: leaves were sprayed with 1) negative control (solvent solution only), 2) 50 μg/ml rifampicin in solvent. Solutions were absorbed onto a 2×2 cm piece of fava bean leaf.
  • Each treatment group received approximately the same number of individuals from each of the collection plant. For each treatment, 20 aphids were placed onto each leaf. Aphids were monitored daily for survival and dead aphids were removed when they were discovered. In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th instar, and 5R, representing a reproducing 5th instar) was determined daily throughout the experiment. Pictures of aphids were taken throughout the experiment to evaluate size differences between treatment groups.
  • After 6 days of treatment, DNA was extracted from multiple aphids from each treatment group and qPCR for quantifying Buchnera levels was done as described in the previous Example.
  • Antibiotic Treatment Delivered Through Leaf Coating Delays and Stops Progression of Aphid Development
  • LSR-1 1st instar aphids were divided into two separate treatment groups as defined in the Experimental Design described herein. Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids placed on coated leaves treated with control began reaching maturity (5th instar reproducing stage; 5R) at approximately 6 days (FIG. 6A). Development was delayed in aphids placed on coated leaves with rifampicin, and by 6 days of treatment, most aphids did not mature further than the 3rd instar stage, even after 12 days, and their size is drastically affected (FIGS. 6A and 6B).
  • These data indicate that leaf coating with rifampicin impaired aphid development.
  • Antibiotic Treatment Delivered Through Leaf Coating Increased Aphid Mortality
  • Survival rate of aphids was also measured during the leaf coating treatments. Aphids placed on coated leaves with rifampicin had lower survival rates than aphids placed on coated leaves with the control (FIG. 7). These data indicate that rifampicin treatment delivered through leaf coating affected aphid survival.
  • Antibiotic Treatment Delivered Through Leaf Coating Decreased Buchnera in Aphids
  • To test whether rifampicin delivered through leaf coating, specifically resulted in loss of Buchnera in aphids, and that this loss impacted aphid fitness, DNA was extracted from aphids in each treatment group after 6 days of treatment and qPCR was performed to determine the Buchnera/aphid copy numbers.
  • Aphids placed on leaves treated with control had high ratios of Buchnera/aphid DNA copies. In contrast, aphids placed on leaves treated with rifampicin had a drastic reduction of Buchnera/aphid DNA copies (FIG. 8), indicating that rifampicin leaf coating treatment eliminated endosymbiotic Buchnera.
  • Microinjection Delivery Experimental Design:
  • Microinjection was performed using NanoJet III Auto-Nanoliter Injector with the in-house pulled borosilicate needle (Drummond Scientific; Cat #3-000-203-G/XL). Aphids (eNASCO strain, Acyrthosiphon pisum) were grown on fava bean plants as described in a previous Example. Aphids are transferred using a paint brush to a tubing system connected to vacuum (FIG. 10). The injection site was at the ventral thorax of the aphid. The injection solutions were either the organosilicone surfactant solvent 0.025% Silwet L-77 (Lehle Seeds, Cat No VIS-01) in water (negative control), or 50 μg/ml of rifampicin formulated in solvent solution. The injection volume was 10 nl for nymph and 20 nl for adult (both at a rate of 2 nl/sec). Each treatment group had approximately the same number of individuals injected from each of the collection plants. After injection, aphids were released into a petri dish with fava bean leaves, whose stems are in 2% agar.
  • Microinjection with Antibiotic Treatment Decreased Buchnera in Aphids
  • To test whether rifampicin delivered by microinjection results in loss of Buchnera in aphids, and that this loss impacts aphid fitness as demonstrated in previous Examples, DNA was extracted from aphids in each treatment group after 4 days of treatment and qPCR was performed as described in a previous Example to determine the Buchnera/aphid copy numbers.
  • Aphids microinjected with negative control had high ratios of Buchnera/aphid DNA copies. In contrast, aphid nymphs and adults microinjected with rifampicin had a drastic reduction of Buchnera/aphid DNA copies (FIG. 9), indicating that rifampicin microinjection treatment decreased the presence of endosymbiotic Buchnera.
  • Topical Delivery Experimental Design:
  • Aphids (LSR-1 strain, Acyrthosiphon pisum) were grown on fava bean plants as described in a previous Example. Spray bottles were filled with 2 ml of control (0.025% Silwet L-77) or rifampicin solutions (50 μg/ml of in solvent solution). Aphids (number=10) were transferred to the bottom of a clean petri dish and gathered to the corner of the petri dish using a paint brush. Subsequently, aphids were separated into two cohorts and sprayed with ˜100 μl of either control or rifampicin solutions. Immediately after spraying, the petri dish was covered with a lid. Five minutes after spraying, aphids were released into a petri dish with fava bean leaves with stems in 2% agar.
  • Topical Delivery of Antibiotic Treatment Decreased Buchnera in Aphids
  • To test whether rifampicin delivered by topical delivery results in loss of Buchnera in aphids, and that this loss impacts aphid fitness as demonstrated in previous Examples, DNA was extracted from aphids in each treatment group after 3 days of treatment and qPCR as described in a previous Example was performed to determine the Buchnera/aphid copy numbers.
  • Aphids sprayed with the control solution had high ratios of Buchnera/aphid DNA copies. In contrast, aphids sprayed with rifampicin had a drastic reduction of Buchnera/aphid DNA copies (FIG. 10), indicating that rifampicin treatment delivered through topical treatment decreases the presence of endosymbiotic Buchnera.
  • Leaf Injection Method A—Leaf Perfusion and Cutting
  • Experimental Design:
  • Aphids LSR-1 (which harbor only Buchnera), Acyrthosiphon pisum were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 25±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (leaf injected with water plus blue food coloring) and 2) leaf injected with, 50 μg/ml rifampicin in water plus blue food coloring. Each treatment group received approximately the same number of individuals from each of the collection plants. For treatment, rifampicin stock solution (25 mg/ml in 100% methanol) was diluted to 50 μg/ml in water plus blue food coloring. The solution was then placed into a 1.5 ml Eppendorf tube with a fava bean stem perfused with the solutions and the opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant. For each treatment, 74-81 aphids were placed onto each leaf. The feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered. In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th, and 5R (5th that has reproduced) instar) was determined daily throughout the experiment.
  • Antibiotic Treatment Delivered Through Leaf Injection Method a Delays and Stops Progression of Aphid Development
  • LSR-1 1st and 2nd instar aphids were divided into two separate treatment groups as defined in Leaf injection method A—Leaf perfusion and cutting Experimental Design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with water plus food coloring began reaching maturity (5th instar stage) at approximately 6 days (FIG. 11). Development was delayed in aphids feeding on rifampicin injected leaves, and by 6 days of treatment, most aphids did not mature further than the 4th instar stage. Even after 8 days, the development of aphids feeding on rifampicin injected leaves was drastically delayed (FIG. 11). These data indicate that rifampicin treatment via leaf perfusion impaired aphid development.
  • Antibiotic Treatment Delivered Through Leaf Injection Method a Increased Aphid Mortality
  • Survival rate of aphids was also measured during the leaf perfusion experiments. Aphids placed on leaves injected with rifampicin had lower survival rates than aphids placed on leaves injected with the control solution (FIG. 12). These data indicate that rifampicin treatment delivered through leaf injection affected aphid survival.
  • Antibiotic Treatment Delivered Thorough Leaf Injection Method a Results in Decreased Levels of Buchnera
  • To test whether rifampicin delivered via leaf perfusion results in loss of Buchnera in aphids, and that this loss impacts aphid fitness as demonstrated in previous Examples, DNA was extracted from aphids in each treatment group after 8 days of treatment and qPCR as described in a previous Example was performed to determine the Buchnera/aphid copy numbers.
  • Aphids feeding on leaves injected with the control solution had high ratios of Buchnera/aphid DNA copies. In contrast, aphids feeding on leaves injected with rifampicin had a reduction of Buchnera/aphid DNA copies (FIG. 13), indicating that rifampicin treatment delivered via leaf injection decreases the presence of endosymbiotic Buchnera, as shown in previous Examples, and resulted in a fitness decrease.
  • Leaf Perfusion and Delivery Through Plant
  • Experimental Design:
  • Aphids LSR-1 (which harbor only Buchnera), Acyrthosiphon pisum were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 25±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness.
  • To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) aphids placed on leaves injected with the negative control solution (water and food coloring) and placed into an Eppendorf tube with the negative control solution, or 2) aphids placed on leaves that were injected with 100 ug/ml rifampicin in water plus food coloring and put into an Eppendorf tube with 100 ug/ml rifampicin in water. Each treatment group received approximately the same number of individuals from each of the collection plants.
  • For treatment, rifampicin stock solution (25 mg/ml in 100% methanol) was diluted to 100 μg/ml in water plus blue food coloring. The solution was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf also perfused with the solutions and the opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • For each treatment, 49-50 aphids were placed onto each leaf. The feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th, and 5R (5th that has reproduced) instar) was determined daily throughout the experiment.
  • Antibiotic Treatment Delivered Through Leaf Injection and Delivery Through Plant Delays and Stops Progression of Aphid Development
  • LSR-1 1st and 2nd instar aphids were divided into two separate treatment groups as defined in Leaf perfusion and delivery through plant Experimental Design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with the control solution (water plus food coloring only) began reaching maturity (5th instar stage) at approximately 6 days (FIG. 14).
  • Development was delayed in aphids treated with rifampicin, and by 6 days of treatment, most aphids did not mature further than the 3rd instar stage. Even after 8 days, their development was drastically delayed (FIG. 14). These data indicate that rifampicin treatment via leaf perfusion impaired aphid development.
  • Antibiotic Treatment Delivered Through Leaf Injection and Delivery Through Plant Increased Aphid Mortality
  • Survival rate of aphids was also measured during the experiments where aphids were treated with either control solution or rifampicin delivered via leaf perfusion and through the plant. Aphids feeding on leaves perfused and treated with rifampicin had lower survival rates than aphids feeding on leaves perfused and treated with the control solution (FIG. 15). These data indicate that rifampicin treatment delivered through leaf perfusion and through the plant negatively impacted aphid survival.
  • Antibiotic Treatment Delivered Via Leaf Injection and Through the Plant Results in Decreased Levels of Buchnera
  • To test whether rifampicin delivered via leaf perfusion and through the plant results in loss of Buchnera in aphids, and that this loss impacts aphid fitness as demonstrated in previous Examples, DNA was extracted from aphids in each treatment group after 6 and 8 days of treatment and qPCR was performed to determine the Buchnera/aphid copy numbers, as described in previous Examples.
  • Aphids feeding on leaves injected and treated with the control solution had high ratios of Buchnera/aphid DNA copies. In contrast, aphids feeding on leaves perfused and treated with rifampicin had a statistically significant reduction of Buchnera/aphid DNA copies at both time points (p=0.0037 and p=0.0025 for days 6 and 8, respectively) (FIGS. 16A and 16B), indicating that rifampicin treatment delivered via leaf perfusion and through the plant decreased the presence of endosymbiotic Buchnera, and as shown in previous Examples, and resulted in a fitness decrease.
  • Combination Delivery Method
  • Experimental Design:
  • Aphids LSR-1 (which harbor only Buchnera), Acyrthosiphon pisum were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 20±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days.
  • For experiments, first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) treatment with Silwet-L77 or water control solutions or 2) treatment with rifampicin diluted in silwet L-77 or water. Each treatment group received approximately the same number of individuals from each of the collection plants. The combination of delivery methods was as follows: a) Topical delivery to aphid and plant by spraying 0.025% nonionic organosilicone surfactant solvent Silwet L-77 (negative control) or 100 μg/ml of rifampicin formulated in solvent solution using a 30 mL spray bottle and b) Delivery through plant with either water (negative control) or 100 μg/ml of rifampicin formulated in water. For treatment, rifampicin stock solution (25 mg/ml in 100% methanol) was diluted to 100 μg/ml in Silwet L-77 (for topical treatment to aphid and coating the leaf) or water (for delivery through plant). The solution was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf also perfused with the solutions and the opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • For each treatment, 76-80 aphids were placed onto each leaf. The feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th, and 5R (5th that has reproduced) instar) was determined daily throughout the experiment.
  • Combination Antibiotic Treatment Delays Aphid Development
  • LSR-1 1st and 2nd instar aphids were divided into two separate treatment groups as defined in Combination delivery method Experimental Design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Control treated aphids began reaching maturity (5th instar stage) at approximately 6 days (FIG. 17). Development was delayed in aphids treated with rifampicin, and by 6 days of treatment, most aphids did not mature further than the 3rd instar stage, even after 7 days their development was drastically delayed (FIG. 17). These data indicate that a combination of rifampicin treatments impaired aphid development.
  • Combination Antibiotic Treatment Results in Increased Aphid Mortality
  • Survival rate of aphids was also measured during the experiments where aphids were treated with a combination of rifampicin treatments. Rifampicin treated aphids had slightly lower survival rates than aphids treated with control solutions (FIG. 18). These data indicate that rifampicin treatment delivered through a combination of treatments affected aphid survival.
  • Combination Antibiotic Treatment in Decreased Levels of Buchnera
  • To test whether rifampicin delivered via a combination of methods results in loss of Buchnera in aphids, and that this loss impacts aphid fitness as demonstrated in previous Examples, DNA was extracted from aphids in each treatment group after 7 days of treatment and qPCR as described in a previous Example was performed to determine the Buchnera/aphid copy numbers.
  • Aphids treated with the control solutions had high ratios of Buchnera/aphid DNA copies. In contrast, aphids treated with rifampicin had a statistically significant and drastic reduction of Buchnera/aphid DNA copies (p=0.227; FIG. 19), indicating that rifampicin treatment delivered via a combination of methods decreases the presence of endosymbiotic Buchnera, and as shown in previous Examples, this resulted in a fitness decrease.
  • Together this data described in the previous Examples demonstrated the ability to kill and decrease the development, reproductive ability, longevity, and endogenous bacterial populations, e.g., fitness, of aphids by treating them with an antibiotic through multiple delivery methods.
  • Example 15: Insects Treated with a Natural Antimicrobial Polysacharide
  • This Example demonstrates the treatment of aphids with Chitosan, a natural cationic linear polysaccharide of deacetylated beta-1,4-D-glucosamine derived from chitin. Chitin is the structural element in the exoskeleton of insects, crustaceans (mainly shrimp and crabs) and cell walls of fungi, and the second most abundant natural polysaccharide after cellulose. This Example demonstrates that the effect of chitosan on insects was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to chitosan. One targeted bacterial strain is Buchnera aphidicola.
  • Therapeutic Design
  • The chitosan solution was formulated using a combination of leaf perfusion and delivery through plants (FIG. 20). The control solution was leaf injected with water+blue food coloring and water in tube. The treatment solution with 300 ug/ml chitosan in water (low molecular weight) via leaf injection (with blue food coloring) and through plant (in Eppendorf tube).
  • Leaf Perfusion-Plant Delivery Experimental Design:
  • Aphids LSR-1 (which harbor only Buchnera), Acyrthosiphon pisum were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 25±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treated), 2) The treatment solution included 300 ug/ml chitosan in water (low molecular weight). Each treatment group received approximately the same number of individuals from each of the collection plants.
  • Chitosan (Sigma, catalog number 448869-50G) stock solution was made at 1% in acetic acid, sterilized autoclaving, and stored at 4° C. For treatment (see Therapeutic design), the appropriate amount of stock solution was diluted with water to obtain the final treatment concentration of chitosan. The solution was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf also perfused with the solutions and the opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • For each treatment, 50-51 aphids were placed onto each leaf. The feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th, and 5R (5th that has reproduced) instar) was determined daily throughout the experiment.
  • After 8 days of treatment, DNA was extracted from multiple aphids from each treatment group. Briefly, the aphid body surface was sterilized by dipping the aphid into a 6% bleach solution for approximately 5 seconds. Aphids were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and Buchnera and aphid DNA copy numbers were measured by qPCR. The primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS). The primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS). qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C. for 15 seconds, 3) 55° C. for 30 seconds, 4) repeat steps 2-3 40×, 5) 95° C. for 15 seconds, 6) 55° C. for 1 minute, 7) ramp change to 0.15 degrees C./s, 8) 95° C. for 1 second. qPCR data was analyzed using analytic (Thermo Fisher Scientific, QuantStudio Design and Analysis) software.
  • There was a Negative Response on Insect Fitness Upon Treatment with the Natural Antimicrobial Polysaccharide
  • LSR-1 A. pisum 1st and 2nd instar aphids were divided into two separate treatment groups as defined in Experimental Design (above). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with the negative control alone began reaching maturity (5th instar stage) at approximately 6 days (FIG. 21). Development was delayed in aphids treated with chitosan solution, and by 6 days of treatment with chitosan, most aphids did not mature further than the 4rd instar stage. These data indicate that treatment with chitosan delayed and stopped progression of aphid development.
  • Chitosan Treatment Increased Aphid Mortality
  • Survival rate of aphids was also measured during the treatments. The majority of the aphids treated with the control alone were alive at 3 days post-treatment (FIG. 22). After 4 days, aphids began gradually dying, and some survived beyond 7 days post-treatment.
  • In contrast, aphids treated with chitosan solution had lower survival rates than aphids treated with control. These data indicate that there was a decrease in survival upon treatment with the natural antimicrobial polysaccharide.
  • Chitosan Treatment Decreased Buchnera in Aphids
  • To test whether the chitosan solution treatment, specifically resulted in loss of Buchnera in aphids, and that this loss impacted aphid fitness, DNA was extracted from aphids in each treatment group after 8 days of treatment and qPCR was performed to determine the Buchnera/aphid copy numbers. Aphids treated with control alone had high ratios of Buchnera/aphid DNA copies. In contrast, aphids treated with 300 ug/ml chitosan in water had ˜2-5-fold less Buchnera/aphid DNA copies (FIG. 23), indicating that chitosan treatment decreased Buchnera levels.
  • Together this data described previously demonstrated the ability to kill and decrease the development, longevity, and endogenous bacterial populations, e.g., fitness, of aphids by treating them with a natural antimicrobial polysaccharide.
  • Example 16: Insects Treated with Nisin, a Natural Antimicrobial Peptide
  • This Example demonstrates the treatment of aphids with the natural, “broad spectrum”, polycyclic antibacterial peptide produced by the bacterium Lactococcus lactis that is commonly used as a food preservative. The antibacterial activity of nisin is mediated through its ability to generate pores in the bacterial cell membrane and interrupt bacterial cell-wall biosynthesis through a specific lipid II interaction. This Example demonstrates that the negative effect of nisin on insect fitness is mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to nisin. One targeted bacterial strain is Buchnera aphidicola.
  • Therapeutic Design:
  • Nisin was formulated using a combination of leaf perfusion and delivery through plants. The control solution (water) or treatment solution (nisin) was injected into the leaf and placed in the Eppendorf tube. The treatment solutions consisted of 1.6 or 7 mg/ml nisin in water.
  • Leaf Perfusion-Plant Delivery Experimental Design:
  • LSR-1 aphids, Acyrthosiphon pisum were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 25±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treated), 2) nisin treated with either 1.6 or 7 mg/ml nisin in water. Each treatment group received approximately the same number of individuals from each of the collection plants.
  • For treatment (see Therapeutic design), nisin (Sigma, product number: N5764) solution was made at 1.6 or 7 mg/ml (w/v) in water and filter sterilized using a 0.22 um syringe filter. The solution was then injected into the leaf of the plant and the stem of the plant was placed into a 1.5 ml Eppendorf tube. The opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • For each treatment, 56-59 aphids were placed onto each leaf. The feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th, and 5R (5th instar aphids that are reproducing) instar) was determined daily throughout the experiment.
  • After 8 days of treatment, DNA was extracted from the remaining aphids in each treatment group. Briefly, the aphid body surface was sterilized by dipping the aphid into a 6% bleach solution for approximately 5 seconds. Aphids were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and Buchnera and aphid DNA copy numbers were measured by qPCR. The primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS). The primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS). qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C. for 15 seconds, 3) 55° C. for 30 seconds, 4) repeat steps 2-3 40×, 5) 95° C. for 15 seconds, 6) 55° C. for 1 minute, 7) ramp change to 0.15 degrees C./s, 8) 95° C. for 1 second. qPCR data was analyzed using analytic (Thermo Fisher Scientific, QuantStudio Design and Analysis) software.
  • There was a Dose-Dependent Negative Response on Insect Fitness Upon Treatment with Nisin
  • LSR-1 A. pisum 1st and 2nd instar aphids were divided into three separate treatment groups as defined in Experimental Design (above). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with the negative control solution (water) began reaching maturity (5th instar stage) at approximately 6 days, and reproducing (5R stage) by 7 days (FIG. 24). Development was severely delayed in aphids treated with 7 mg/ml nisin. Aphids treated with 7 mg/ml nisin only developed to the 2nd instar stage by day 3, and by day 6, all aphids in the group were dead (FIG. 24). Development was slightly delayed in aphids treated with the lower concentration of nisin (1.6 mg/ml) and at each time point assessed, there were more less-developed aphids compared to water-treated controls (FIG. 24). These data indicate that treatment with nisin delayed and stopped progression of aphid development and this delay in development was dependent on the dose of nisin administered.
  • However, it is important to note that treatment with 7 mg/ml of nisin also had a negative impact on the health of the leaves used in the assay. Shortly after leaf perfusion of 7 mg/ml of nisin it started turning brown. After two days, the leaves perfused with 7 mg/ml turned black. There was no noticeable difference in the condition of the leaves treated with 1.6 mg/ml nisin.
  • Treatment with Nisin Resulted in Increased Aphid Mortality
  • Survival rate of aphids was also measured during the treatments. Approximately 50% of aphids treated with the control alone survived the 8-day experiment (FIG. 25). In contrast, survival was significantly less for aphids treated with 7 mg/ml nisin (p<0.0001, by Log-Rank Mantel Cox test), and all aphids in this group succumbed to the treatment by 6 days (FIG. 25). Aphids treated with the lower dose of nisin (1.6 mg/ml) had higher mortality compared to control treated aphids, although the difference did not reach statistical significance (p=0.0501 by Log-Rank Mantel Cox test). These data indicate that there was a dose-dependent decrease in survival upon treatment with nisin.
  • Treatment with Nisin Resulted in Decreased Buchnera in Aphids
  • To test whether treatment with nisin, specifically resulted in loss of Buchnera in aphids, and that this loss impacted aphid fitness, DNA was extracted from aphids in each treatment group after 8 days of treatment and qPCR was performed to determine the Buchnera/aphid copy numbers. Aphids treated with control alone had high ratios of Buchnera/aphid DNA copies. In contrast, aphids treated with 1.6 mg/ml nisin had ˜1.4-fold less Buchnera/aphid DNA copies after 8 days of treatment (FIG. 26). No aphids were alive in the group treated with 7 mg/ml nisin, and therefore, Buchnera/aphid DNA copies was not assessed in this group. These data indicate that nisin treatment decreased Buchnera levels.
  • Together this data described previously demonstrate the ability to kill and decrease the development, longevity, and endogenous bacterial populations, e.g., fitness, of aphids by treating them with the antimicrobial peptide nisin.
  • Example 17: Insects Treated with Levulinic Acid Decreases Insect Fitness
  • This Example demonstrates the treatment of aphids with levulinic acid, a keto acid produced by heating a carbohydrate with hexose (e.g., wood, starch, wheat, straw, or cane sugar) with the addition of a dilute mineral acid reduces insect fitness. Levulinic acid has previously been tested as an antimicrobial agent against Escherichia coli and Salmonella in meat production (Carpenter et al., 2010, Meat Science; Savannah G. Hawkins, 2014, University of Tennessee Honors Thesis). This Example demonstrates that the effect of levulinic acid on insects was mediated through the modulation of bacterial populations endogenous to the insects that were sensitive to levulinic acid. One targeted bacterial strain is Buchnera aphidicola.
  • Therapeutic Design:
  • The levulinic acid was formulated using a combination of leaf perfusion and delivery through plants. The control solution was leaf injected with water and water was placed in the Eppendorf tube. The treatment solutions included 0.03 or 0.3% levulinic acid in water via leaf injection and through plant (in Eppendorf tube).
  • Leaf Perfusion-Plant Delivery
  • Experimental Design:
  • eNASCO aphids, Acyrthosiphon pisum were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 25±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treated), 2) The treatment solution included 0.03 or 0.3% levulinic acid in water. Each treatment group received approximately the same number of individuals from each of the collection plants.
  • For treatment (see Therapeutic design), levulinic acid (Sigma, product number: W262706) was diluted to either 0.03 or 0.3% in water. The solution was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf also perfused with the solutions and the opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • For each treatment, 57-59 aphids were placed onto each leaf. The feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • In addition, the developmental stage (1st, 2nd, 3rd, 4th, and 5th instar) was determined daily throughout the experiment.
  • After 7 of treatment, DNA was extracted from the remaining aphids in each treatment group. Briefly, the aphid body surface was sterilized by dipping the aphid into a 6% bleach solution for approximately 5 seconds. Aphids were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and Buchnera and aphid DNA copy numbers were measured by qPCR. The primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS). The primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS). qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C. for 15 seconds, 3) 55° C. for 30 seconds, 4) repeat steps 2-3 40×, 5) 95° C. for 15 seconds, 6) 55° C. for 1 minute, 7) ramp change to 0.15 degrees C./s, 8) 95° C. for 1 second. qPCR data was analyzed using analytic (Thermo Fisher Scientific, QuantStudio Design and Analysis) software.
  • There was a Dose-Dependent Negative Response on Insect Fitness Upon Treatment with Levulinic Acid
  • eNASCO A. pisum 1st and 2nd instar aphids were divided into three separate treatment groups as defined in Experimental Design (above). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with the negative control alone began reaching maturity (5th instar stage) at approximately 7 days (FIG. 27). Development was delayed in aphids treated with levulinic acid and by 11 days post-treatment, nearly all control treated aphids reached maturity while ˜23 and 63% aphids treated with 0.03 and 0.3% levulinic acid, respectively, did not mature further than the 4rd instar stage. These data indicate that treatment with levulinic acid delayed and stopped progression of aphid development and this delay in development is dependent on the dose of levulinic acid administered.
  • Treatment with Levulinic Acid Results in Increased Aphid Mortality
  • Survival rate of aphids was also measured during the treatments. Approximately 50% of aphids treated with the control alone survived the 11-day experiment (FIG. 28). In contrast, survival was significantly less for aphids treated with 0.3% levulinic acid (p<0.01). Aphids treated with the low dose of levulinic acid (0.03%) had higher mortality compared to control treated aphids, although the difference did not reach statistical significance. These data indicate that there was a dose-dependent decrease in survival upon treatment with levulinic acid.
  • Treatment with Levulinic Acid Results in Decreased Buchnera in Aphids
  • To test whether treatment with levulinic acid, specifically resulted in loss of Buchnera in aphids, and that this loss impacted aphid fitness, DNA was extracted from aphids in each treatment group after 7 days of treatment and qPCR was performed to determine the Buchnera/aphid copy numbers. Aphids treated with control alone had high ratios of Buchnera/aphid DNA copies. In contrast, aphids treated with 0.03 or 0.3% levulinic acid in water had ˜6-fold less Buchnera/aphid DNA copies after 7 days of treatment (FIG. 29, left panel). These data indicate that levulinic acid treatment decreased Buchnera levels.
  • Together this data described previously demonstrated the ability to kill and decrease the development, longevity, and endogenous bacterial populations, e.g., fitness, of aphids by treating them with levulinic acid.
  • Example 18: Insects Treated with a Plant Derived Secondary Metabolite Solution
  • This Example demonstrates the treatment of aphids with gossypol acetic acid, a natural phenol derived from the cotton plant (genus Gossypium) that permeates cells and acts as an inhibitor for several dehydrogenase enzymes. This Example demonstrates that the effect of gossypol on insects was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to gossypol. One targeted bacterial strain is Buchnera aphidicola.
  • Therapeutic Design:
  • The gossypol solution was formulated depending on the delivery method:
  • 1) Through the plants: with 0 (negative control) or 0.5%, 0.25%, and 0.05% of gossypol formulated in an artificial diet (based on Akey and Beck, 1971; see Experimental Design) without essential amino acids (histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine).
  • 2) Microinjection: injection solutions were either 0.5% of gossypol or artificial diet only (negative control).
  • Plant Delivery Experimental Design:
  • Aphids (either eNASCO (which harbor both Buchnera and Serratia primary and secondary symbionts, respectively) or LSR-1 (which harbor only Buchnera) strains, Acyrthosiphon pisum) were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 25±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, first and second instar aphids were collected from healthy plants and divided into 4 different treatment groups: 1) artificial diet alone without essential amino acids, 2) artificial diet alone without essential amino acids and 0.05% of gossypol, 3) artificial diet alone without essential amino acids and 0.25% of gossypol, and 4) artificial diet alone without essential amino acids and 0.5% of gossypol. Each treatment group received approximately the same number of individuals from each of the collection plants.
  • The artificial diet used was made as previously published (Akey and Beck, 1971 Continuous Rearing of the Pea Aphid, Acyrthosiphon pisum, on a Holidic Diet), with and without the essential amino acids (2 mg/ml histidine, 2 mg/ml isoleucine, 2 mg/ml leucine, 2 mg/ml lysine, 1 mg/ml methionine, 1.62 mg/ml phenylalanine, 2 mg/ml threonine, 1 mg/ml tryptophan, and 2 mg/ml valine), except neither diet included homoserine or beta-alanyltyrosine. The pH of the diets was adjusted to 7.5 with KOH and diets were filter sterilized through a 0.22 μm filter and stored at 4° C. for short term (<7 days) or at −80° C. for long term.
  • Gossypol acetic acid (Sigma, Cat # G4382-250MG) stock solution was made at 5% in methanol and sterilized by passing through a 0.22 μm syringe filter, and stored at 4° C. For treatments (see Therapeutic design), the appropriate amount of stock solution was added to the artificial diet to obtain the different final concentrations of gossypol. The diet was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf and the opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • For each treatment, 15-87 aphids were placed onto each leaf. Artificial diet feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish housing the artificial feeding system when they were discovered.
  • In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th, and 5R (5th that has reproduced) instar) was determined daily throughout the experiment. Once an aphid reached the 4th instar stage, they were given their own artificial feeding system in a deep petri dish so that fecundity could be monitored once they reached adulthood.
  • For adult aphids, new nymphs were counted daily and then discarded. At the end of the experiments, fecundity was measured in two ways: 1) the mean day at which the first offspring for the treatment group was determined and 2) the mean number of offspring produced daily once the aphid reached adulthood. Pictures of aphids were taken throughout the experiment to evaluate size differences between treatment groups.
  • After 5 or 13 days of treatment, DNA was extracted from multiple aphids from each treatment group. Briefly, the aphid body surface was sterilized by dipping the aphid into a 6% bleach solution for approximately 5 seconds. Aphids were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and Buchnera and aphid DNA copy numbers were measured by qPCR. The primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS). The primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS). qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C. for 15 seconds, 3) 55° C. for 30 seconds, 4) repeat steps 2-3 40×, 5) 95° C. for 15 seconds, 6) 55° C. for 1 minute, 7) ramp change to 0.15 degrees C./s, 8) 95° C. for 1 second. qPCR data was analyzed using analytic (Thermo Fisher Scientific, QuantStudio Design and Analysis) software.
  • There was a Dose-Dependent Negative Response on Insect Fitness Upon Treatment with the Allelochemical Gossypol
  • eNASCO and LSR-1 A. pisum 1st and 2nd instar aphids were divided into four separate treatment groups as defined in Experimental Design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with artificial diet alone began reaching maturity (5th instar stage) at approximately 3 days (FIG. 30A). Development was delayed in aphids treated with gossypol, and by 5 days of treatment with 0.5% of gossypol, most aphids did not mature further than the 3rd instar stage, and their size is also affected (FIGS. 30A and 30B). These data indicate that treatment with gossypol delayed and stopped progression of aphid development, and that this response was dose dependent.
  • Gossypol Treatment Increased Aphid Mortality
  • Survival rate of aphids was also measured during the treatments. The majority of the aphids treated with artificial diet alone without essential amino acids were alive at 2 days post-treatment (FIG. 31). After 4 days, aphids began gradually dying, and some survived beyond 7 days post-treatment.
  • In contrast, aphids treated with 0.25 (not significantly different than control, p=0.2794) and 0.5% of gossypol had lower survival rates than aphids treated with artificial diet alone, with 0.5% gossypol treatment being significantly different than AD no EAA control (p=0.002). 0.5% gossypol-treated aphids began dying after 2 days of treatment and all aphids succumbed to treatment by 4 days. Aphids treated with 0.25% survived a bit longer than those treated with 0.5% but were also drastically affected. These data indicate that there was a dose-dependent decrease in survival upon treatment with the allelochemical gossypol.
  • Gossypol Treatment Decreased Aphid Reproduction
  • Fecundity was also monitored in aphids during the treatments. By days 7 and 8 post-treatment, the majority of the adult aphids treated with artificial diet without essential amino acids began reproducing. The mean number of offspring produced daily after maturity by aphids treated with artificial diet without essential amino acids was approximately 5 (FIGS. 32A and 32B).
  • In contrast, aphids treated with 0.25% of gossypol show a reduction to reach adulthood and produce offspring. These data indicate that gossypol treatment resulted in a decrease of aphid reproduction.
  • Gossypol Treatment Decreased Buchnera in Aphids
  • To test whether different concentrations of gossypol, specifically resulted in loss of Buchnera in aphids, and that this loss impacted aphid fitness, DNA was extracted from aphids in each treatment group after 5 or 13 days of treatment and qPCR was performed to determine the Buchnera/aphid copy numbers. Aphids treated with artificial diet alone without essential amino acids (control) had high ratios of Buchnera/aphid DNA copies. In contrast, aphids treated with 0.25 and 0.5% of gossypol had ˜4-fold less Buchnera/aphid DNA copies (FIG. 33), indicating that gossypol treatment decreased Buchnera levels, and that this decrease was concentration dependent.
  • Microinjection Delivery Experimental Design:
  • Microinjection was performed using NanoJet III Auto-Nanoliter Injector with the in-house pulled borosilicate needle (Drummond Scientific; Cat #3-000-203-G/XL). Aphids (LSR-1 strain, A. pisum) were grown on fava bean plants as described in a previous Example. Each treatment group had approximately the same number of individuals injected from each of the collection plants. Nymph aphids (<3rd instar stage) were transferred using a paint brush to a tubing system connected to vacuum and microinjected into the ventral thorax with 20 nl of either artificial diet without essential amino acids (negative control) or 0.05% of gossypol solution in artificial diet without essential amino acids. After injection, aphids were placed in a deep petri dish with a fava bean leaf with stem in 2% agar.
  • Microinjection with Antibiotic Treatment Decreased Buchnera in Aphids
  • To test whether gossypol delivered by microinjection results in loss of Buchnera in aphids, and that this loss impacts aphid fitness as demonstrated in previous Examples, DNA was extracted from aphids in each treatment group after 4 days of treatment and qPCR was performed as described in a previous Example to determine the Buchnera/aphid copy numbers.
  • Aphids microinjected with negative control had high ratios of Buchnera/aphid DNA copies. In contrast, aphid nymphs and adults microinjected with gossypol had a drastic reduction of Buchnera/aphid DNA copies (FIG. 34), indicating that gossypol microinjection treatment decreases the presence of endosymbiotic Buchnera, and as shown in previous Examples this resulted in a fitness decrease.
  • Together this data described in the previous Examples demonstrated the ability to kill and decrease the development, reproductive ability, longevity, and endogenous bacterial populations, e.g., fitness, of aphids by treating them with plant secondary metabolite solution through multiple delivery methods.
  • Example 19: Insects Treated with Natural Plant Derived Antimicrobial Compound, Trans-Cinnemaldehyde
  • This Example demonstrates the treatment of aphids with trans-cinnemaldehyde, a natural aromatic aldehyde that is the major component of bark extract of cinnamon (Cinnamomum zeylandicum) results in decreased fitness. Trans-cinnemaldehyde has been shown to have antimicrobial activity against both gram-negative and gram-positive organisms, although the exact mechanism of action of its antimicrobial activity remains unclear. Trans-cinnemaldehyde may damage bacterial cell membranes and inhibit of specific cellular processes or enzymes (Gill and Holley, 2004 Applied Environmental Microbiology). This Example demonstrates that the effect of trans-cinnemaldehyde on insects was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to trans-cinnemaldehyde. One targeted bacterial strain is Buchnera aphidicola.
  • Therapeutic Design:
  • Trans-cinnemaldehyde was diluted to 0.05%, 0.5%, or 5% in water and was delivered through leaf perfusion (˜1 ml was injected into leaves) and through plants.
  • Experimental Design:
  • Aphids (LSR-1 (which harbor only Buchnera) strains, Acyrthosiphon pisum) were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 25±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, first and second instar aphids were collected from healthy plants and divided into four different treatment groups: 1) water treated controls, 2) 0.05% trans-cinnemaldehyde in water, 3) 0.5% trans-cinnemaldehyde in water, and 4) 5% trans-cinnemaldehyde in water. Each treatment group received approximately the same number of individuals from each of the collection plants.
  • Trans-cinnemaldehyde (Sigma, Cat # C80687) was diluted to the appropriate concentration in water (see Therapeutic design), sterilized by passing through a 0.22 μm syringe filter, and stored at 4° C. Fava bean leaves were injected with approximately 1 ml of the treatment and then the leaf was placed in a 1.5 ml Eppendorf tube containing the same treatment solution. The opening of the tube where the fava bean stem was placed was closed using parafilm. This treatment feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • For each treatment, 40-49 aphids were placed onto each leaf. Treatment feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish housing the treatment feeding system when they were discovered.
  • In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th and 5R (5th that has reproduced) instar) was determined daily throughout the experiment.
  • After 3 days of treatment, DNA was extracted from the remaining living aphids from each treatment group. Briefly, the aphid body surface was sterilized by dipping the aphid into a 6% bleach solution for approximately 5 seconds. Aphids were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and Buchnera and aphid DNA copy numbers were measured by qPCR. The primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS). The primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS). qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C. for 15 seconds, 3) 55° C. for 30 seconds, 4) repeat steps 2-3 40×, 5) 95° C. for 15 seconds, 6) 55° C. for 1 minute, 7) ramp change to 0.15 degrees C./s, 8) 95° C. for 1 second. qPCR data was analyzed using analytic (Thermo Fisher Scientific, QuantStudio Design and Analysis) software.
  • There was a Dose-Dependent Negative Response on Insect Fitness Upon Treatment with the Natural Antimicrobial Trans-Cinnemaldehyde
  • LSR-1 A. pisum 1st and 2nd instar aphids were divided into four separate treatment groups as defined in Experimental Design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with water alone began reaching the 3rd instar stage at 3 days post-treatment (FIG. 35). Development was delayed in aphids treated with trans-cinnemaldehyde, and by 3 days of treatment with each the three of the trans-cinnemaldehyde concentrations, none of the aphids matured past the second instar stage (FIG. 35). Moreover, all the aphids treated with the highest concentration of trans-cinnemaldehyde (5%) remained at the 1st instar stage throughout the course of the experiment. These data indicate that treatment with trans-cinnemaldehyde delays and stops progression of aphid development, and that this response is dose dependent.
  • Trans-Cinnemaldehyde Treatment Increased Aphid Mortality
  • Survival rate of aphids was also measured during the treatments. Approximately 75 percent of the aphids treated with water alone were alive at 3 days post-treatment (FIG. 36). In contrast, aphids treated with 0.05%, 0.5%, and 5% trans-cinnemaldehyde had significantly lower (p<0.0001 for each treatment group compared to water treated control) survival rates than aphids treated with water alone. These data indicate that there was a dose-dependent decrease in survival upon treatment with the natural antimicrobial trans-cinnemaldehyde.
  • Trans-Cinnemaldehyde Treatment Decreased Buchnera in Aphids
  • To test whether different concentrations of trans-cinnemaldehyde, specifically resulted in loss of Buchnera in aphids, and that this loss impacted aphid fitness, DNA was extracted from aphids in each treatment group after 3 days of treatment and qPCR was performed to determine the Buchnera/aphid copy numbers. Aphids treated with water alone (control) had high ratios of Buchnera/aphid DNA copies. Similarly, aphids treated with the lowest concentration of trans-cinnemaldehyde (0.5%) had high ratios of Buchnera/aphid DNA copies.
  • In contrast, aphids treated with 0.5 and 5% of trans-cinnemaldehyde had ˜870-fold less Buchnera/aphid DNA copies (FIG. 37), indicating that trans-cinnemaldehyde treatment decreased Buchnera levels, and that this decrease was concentration dependent.
  • Together this data described in the previous Examples demonstrate the ability to kill and decrease the development, reproductive ability, longevity and endogenous bacterial populations, e.g., fitness, of aphids by treating them with plant secondary metabolite solution through multiple delivery methods.
  • Example 20: Insects Treated with Scorpion Antimicrobial Peptides
  • This Example demonstrates the treatment of aphids with multiple scorpion antimicrobial peptides (AMP), of which several are identified AMPs in the venom gland transcriptome of the scorpion Urodacus yaschenkoi (Luna-Ramirez et al., 2017, Toxins). AMPs typically have a net positive charge and hence, a high affinity for bacterial membranes. This Example demonstrates that the effect of the AMP on insects was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to AMP peptides. One targeted bacterial strain is Buchnera aphidicola, an obligate symbiont of aphids.
  • Therapeutic Design:
  • The Uy192 solution was formulated using a combination of leaf perfusion and delivery through plants. The control solution was leaf injected with water+blue food coloring and water in tube. The treatment solution consisted of 100 ug/ml Uy192 in water via leaf injection (with blue food coloring) and through plant (in Eppendorf tube).
  • Leaf Perfusion-Plant Delivery Experimental Design:
  • Aphids LSR-1 (which harbor only Buchnera), Acyrthosiphon pisum were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 20±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treated), 2) The treatment solution of 100 ug/ml AMP in water. Each treatment group received approximately the same number of individuals from each of the collection plants.
  • Uy192 was synthesized by Bio-Synthesis at >75% purity. 1 mg of lyophilized peptide was reconstituted in 500 ul of 80% acetonitrile, 20% water, and 0.1% TFA, 100 ul (100 ug) was aliquoted into 10 individual Eppendorf tubes, and allowed to dry. For treatment (see Therapeutic design), 1 ml of water was added to a 100 ug aliquot of peptide to obtain the final concentration of Uy192 (100 ug/ml). The solution was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf also perfused with the solutions and the opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • For each treatment, 50 aphids were placed onto each leaf. The feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th, and 5R (5th that has reproduced) instar) was determined daily throughout the experiment.
  • After 8 days of treatment, DNA was extracted from the remaining aphids in each treatment group. Briefly, the aphid body surface was sterilized by dipping the aphid into a 6% bleach solution for approximately 5 seconds. Aphids were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and Buchnera and aphid DNA copy numbers were measured by qPCR. The primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS). The primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS). qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C. for 15 seconds, 3) 55° C. for 30 seconds, 4) repeat steps 2-3 40×, 5) 95° C. for 15 seconds, 6) 55° C. for 1 minute, 7) ramp change to 0.15 degrees C./s, 8) 95° C. for 1 second. qPCR data was analyzed using analytic (Thermo Fisher Scientific, QuantStudio Design and Analysis) software.
  • There was a Negative Response on Insect Fitness Upon Treatment with the Scorpion AMPs
  • LSR-1 A. pisum 1st and 2nd instar aphids were divided into two separate treatment groups as defined in Experimental Design (above). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with the negative control alone began reaching maturity (5th instar stage) at approximately 6 days (FIG. 38). Development was delayed in aphids treated with Uy192, and after 8 days of treatment, aphids did not mature further than the 4rd instar stage. These data indicate that treatment with Uy192 delayed and stopped progression of aphid development.
  • Treatment with Scorpion AMPs Results in Increased Aphid Mortality
  • Survival rate of aphids was also measured during the treatments. The majority of the aphids treated with the control alone were alive at 3 days post-treatment (FIG. 39). After 4 days, aphids began gradually dying, and some survived beyond 7 days post-treatment.
  • In contrast, aphids treated with Uy192 had lower survival rates than aphids treated with control. These data indicate that there was a decrease in survival upon treatment with the scorpion AMP Uly192.
  • Treatment with Scorpion AMP Uy192 Results in Decreased Buchnera in Aphids
  • To test whether treatment with Uy192, specifically resulted in loss of Buchnera in aphids, and that this loss impacted aphid fitness, DNA was extracted from aphids in each treatment group after 8 days of treatment and qPCR was performed to determine the Buchnera/aphid copy numbers. Aphids treated with control alone had high ratios of Buchnera/aphid DNA copies. In contrast, aphids treated with 100 ug/ml Uy192 in water had ˜7-fold less Buchnera/aphid DNA copies (FIG. 40), indicating that Uy192 treatment decreased Buchnera levels.
  • Together this data described previously demonstrated the ability to kill and decrease the development, longevity and endogenous bacterial populations, e.g., fitness, of aphids by treating them with a natural scorpion antimicrobial peptide.
  • Example 21: Insects Treated with Scorpion Antimicrobial Peptides
  • This Example demonstrates the treatment of aphids with several scorpion antimicrobial peptides (AMPs) D10, D3, Uyct3, and Uy17, which have been recently identified AMPs in the venom gland transcriptome of the scorpion Urodacus yaschenkoi (Luna-Ramirez et al., 2017, Toxins). AMPs typically have a net positive charge and hence, a high affinity for bacterial membranes. This Example demonstrates that the effect of the AMPs on insects was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to AMP peptides. One targeted bacterial strain is Buchnera aphidicola, an obligate symbiont of aphids.
  • Aphids are agricultural insect pests causing direct feeding damage to the plant and serving as vectors of plant viruses. In addition, aphid honeydew promotes the growth of sooty mold and attracts nuisance ants. The use of chemical treatments, unfortunately still widespread, leads to the selection of resistant individuals whose eradication becomes increasingly difficult.
  • Therapeutic Design:
  • The indicated peptide or peptide cocktail (see Aphid Microinjection Experimental Design and Leaf perfusion-Plant Experimental Design sections for details below) was directly microinjected into aphids or delivered using a combination of leaf perfusion and delivery through plants. As a negative control, aphids were microinjected with water (for microinjection experiments) or placed on leaves injected with water and water in tube (for leaf perfusion and plant delivery experiments). The treatment solutions consisted of 20 nl of 5 μg/μl of D3 or D10 dissolved in water (for aphid microinjections) or 40 μg/ml of a cocktail of D10, Uy17, D3, and UyCt3 in water via leaf injection and through plant (in Eppendorf tube).
  • Aphid Microinjection Experimental Design
  • Microinjection was performed using NanoJet III Auto-Nanoliter Injector with the in-house pulled borosilicate needle (Drummond Scientific; Cat #3-000-203-G/XL). Aphids (LSR-1 strain, Acyrthosiphon pisum) were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 25±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. Each treatment group had approximately the same number of individuals injected from each of the collection plants. Adult aphids were microinjected into the ventral thorax with 20 nl of either water or 100 ng (20 ul of a 5 ug/ml solution of peptide D3 or D10. The microinjection rate as 5 nl/sec. After injection, aphids were placed in a deep petri dish containing a fava bean leaf with stem in 2% agar.
  • Peptides were synthesized by Bio-Synthesis at >75% purity. 1 mg of lyophilized peptide was reconstituted in 500 μl of 80% acetonitrile, 20% water, and 0.1% TFA, 100 μl (100 μg) was aliquoted into 10 individual Eppendorf tubes, and allowed to dry.
  • After 5 days of treatment, DNA was extracted from the remaining aphids in each treatment group. Briefly, the aphid body surface was sterilized by dipping the aphid into a 6% bleach solution for approximately 5 seconds. Aphids were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and Buchnera and aphid DNA copy numbers were measured by qPCR. The primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS). The primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS). qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C. for 15 seconds, 3) 55° C. for 30 seconds, 4) repeat steps 2-3 40×, 5) 95° C. for 15 seconds, 6) 55° C. for 1 minute, 7) ramp change to 0.15 degrees C./s, 8) 95° C. for 1 second. qPCR data was analyzed using analytic (Thermo Fisher Scientific, QuantStudio Design and Analysis) software.
  • Microinjection of Aphids with Scorpion Peptides D3 and D10 Results in Decreased Insect Survival
  • LSR-1 A. pisum 1st and 2nd instar aphids were divided into three separate treatment groups as defined in Experimental Design (described herein). Aphids were monitored daily and survival rate was determined. After 5 days of treatment, the aphids injected with the scorpion peptides had lower survival rates compared to water injected controls (9, 35, and 45% survival for injection with D3, D10, and water, respectively) (FIG. 41). These data indicate that there was a decrease in survival upon treatment with the scorpion AMPs D3 and D10.
  • Microinjection of Aphids with Scorpion Peptides D3 and D10 Results in a Reduction of Buchnera Endosymbionts
  • To test whether injection with the scorpion AMPs D3 and D10, specifically resulted in loss of Buchnera in aphids, and that this loss impacted aphid fitness, DNA was extracted from aphids in each treatment group 5 days after injection and qPCR was performed to determine the Buchnera/aphid copy numbers. Aphids injected with water alone had high ratios of Buchnera/aphid DNA (47.4) while aphids injected with D3 and D10 had lower ratios of Buchnera/aphid DNA (25.3 and 30.9, respectively) (FIG. 42). These data indicate that treatment with scorpion peptides D3 and D10 resulted in decreased levels of the bacterial symbiont Buchnera.
  • Leaf Perfusion-Plant Delivery Experimental Design:
  • eNASCO Aphids (which harbor Buchnera and Serratia), Acyrthosiphon pisum were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) as described above. For experiments, first and second instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treated), 2) The treatment solution consisted of 40 μg/ml of each D10, Uy17, D3, and UyCt3 in water. Each treatment group received approximately the same number of individuals from each of the collection plants.
  • Peptides were synthesized, dissolved, and aliquoted, as described above. For treatment (see Therapeutic design), water was added to a 100 μg aliquot of peptide to obtain the desired final concentration (40 μg/ml). The four peptides were combined to make the peptide cocktail solution. This solution was used to perfuse into leaves via injection. Following injection, the stems of the injected leaves were placed into a 1.5 ml Eppendorf tube which was then sealed with parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • For each treatment, 41-49 aphids were placed onto each leaf. The feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered.
  • Treatment with Cocktail of Scorpion Peptides Results in Increased Aphid Mortality
  • Survival rate of aphids was also measured during the treatments. After 6 days of treatment, aphids treated with the peptide cocktail had lower survival rates compared to those treated with water, and after 9 days the effect is more evident (16 and 29% survival for peptide cocktail and water treated, respectively) (FIG. 43). These data indicate that there was a decrease in survival upon treatment with the cocktail of scorpion AMPs, and as shown in previous Examples these AMP decreased the endosymbiont levels in the aphids.
  • Together this data described previously demonstrated the ability to kill and decrease the longevity and endogenous bacterial populations, e.g., fitness, of aphids by treating them with single natural scorpion antimicrobial peptides or a peptide cocktail.
  • Example 22: Insects Treated with an Antimicrobial Peptide Fused to a Cell Penetrating Peptide
  • This Example demonstrates the treatment of aphids with a fused scorpion antimicrobial peptide (AMP) (Uy192) to a cell penetrating peptide derived from a virus. The AMP Uy192 is one of several recently identified AMPs in the venom gland transcriptome of the scorpion Urodacus yaschenkoi (Luna-Ramirez et al., 2017, Toxins). AMPs typically have a net positive charge and hence, a high affinity for bacterial membranes. To enhance the delivery of the scorpion peptide Uy192 into aphid cells, the peptide was synthesized fused to a portion of the transactivator of transcription (TAT) protein of human immunodeficiency virus I (HIV-1). Previous studies have shown that conjugating this cell penetrating peptide (CPP) to other molecules increased their uptake into cells via transduction (Zhou et al., 2015 Journal of Insect Science and Cermenati et al., 2011 Journal of Insect Physiology). This Example demonstrates that the effect of the fused peptide on insects was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to the antimicrobial peptide. One targeted bacterial strain is Buchnera.
  • Therapeutic Design
  • The scorpion peptide conjugated to the cell penetrating peptide and fluorescently tagged with 6FAM (Uy192+CPP+FAM) was formulated using a combination of leaf perfusion and delivery through plants. The control solution (water) or treatment solution (Uy192+CPP+FAM) was injected into the leaf and placed in the Eppendorf tube. The treatment solution included 100 μg/ml Uy192+CPP+FAM in water.
  • Leaf Perfusion-Plant Delivery Experimental Design
  • LSR-1 aphids, Acyrthosiphon pisum were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 25±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, first instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treated), 2) Uy192+CPP+FAM treated with 100 μg/ml Uy192+CPP+FAM in water. Each treatment group received approximately the same number of individuals from each of the collection plants.
  • For treatment (see Therapeutic design), Uy192+CPP+FAM (amino acid sequence: YGRKKRRQRRRFLSTIWNGIKGLL-FAM) was synthesized by Bio-Synthesis at >75% purity. 5 mg of lyophilized peptide was reconstituted in 1 ml of 80% acetonitrile, 20% water, and 0.1% TFA, 50 μl (100 μg) was aliquoted into individual Eppendorf tubes, and allowed to dry. For treatment (see Therapeutic design), 1 ml of sterile water was added to a 100 μg aliquot of peptide to obtain the final concentration of Uy192+CPP+FAM (100 μg/ml). The solution was then injected into the leaf of the plant and the stem of the plant was placed into a 1.5 ml Eppendorf tube. The opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant. Epi fluorescence imaging of the leaf confirmed that the leaves contained the green fluorescently tagged peptide in their vascular system.
  • For each treatment, 30 aphids were placed onto each leaf in triplicate. The feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered. In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th, and 5R (5th instar aphids that are reproducing) instar) was determined daily throughout the experiment.
  • At 5 days post-treatment, DNA was extracted from several aphids in each treatment group. Briefly, the aphid body surface was sterilized by dipping the aphid into a 6% bleach solution for approximately 5 seconds. Aphids were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and Buchnera and aphid DNA copy numbers were measured by qPCR. The primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS). The primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS). qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C. for 15 seconds, 3) 55° C. for 30 seconds, 4) repeat steps 2-3 40×, 5) 95° C. for 15 seconds, 6) 55° C. for 1 minute, 7) ramp change to 0.15 degrees C./s, 8) 95° C. for 1 second. qPCR data was analyzed using analytic (Thermo Fisher Scientific, QuantStudio Design and Analysis) software.
  • Treatment with Scorpion Peptide Uy192 Fused to a Cell Penetrating Peptide Delayed and Stopped Progression of Aphid Development
  • LSR-1 A. pisum 1st instar aphids were divided into three separate treatment groups as defined in Experimental Design (above). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Development for both aphids treated with water and those treated with the scorpion peptide fused to the cell penetrating peptide was similar for days 0 and 1 (FIG. 44). By day 2, however, control treated aphids developed to either in the second or third instar stage, while some aphids treated with the scorpion peptide fused to the cell penetrating peptide remained in the first instar stage (FIG. 44). Even at 3 days post-treatment, some aphids treated with the scorpion peptide fused to the cell penetrating peptide remained in the first instar stage (FIG. 44). By 7 days post-treatment, the majority of the water treated aphids developed to the 5th or 5th reproducing instar stage. In contrast, only 50 percent of aphids treated with the scorpion peptide fused to the cell penetrating peptide developed to the 5th instar stage, while ˜42 and ˜8 percent of aphids remained at the 3rd or 4th instar stage, respectively (FIG. 44). These data indicate that treatment with the scorpion peptide Uy192 fused to the cell penetrating peptide delayed and stopped progression of aphid development.
  • Treatment with the Scorpion Peptide Uy192 Fused to a Cell Penetrating Peptide Resulted in Increased Aphid Mortality
  • Survival rate of aphids was also measured during the treatments. Approximately 40% of aphids treated with the control alone survived the 7-day experiment (FIG. 45). In contrast, survival was significantly less for aphids treated with 100 μg/ml Uy192+CPP+FAM (p=0.0036, by Log-Rank Mantel Cox test), with only 16% of aphids surviving to day 7 (FIG. 45). These data indicate that there was a decrease in survival upon treatment with the scorpion peptide Uy192 fused to a cell penetrating peptide.
  • Treatment with a Scorpion Peptide Fused to a Cell Penetrating Peptide Resulted in Decreased Buchnera/Aphid DNA Ratios
  • To test whether treatment with treatment with Uy192+CPP+FAM, specifically resulted in loss of Buchnera in aphids, and that this loss impacted aphid fitness, DNA was extracted from aphids in each group after 5 days of treatment, and qPCR was performed to determine the Buchnera/aphid copy numbers. Aphids treated with water had high ratios (˜134) of Buchnera/aphid DNA. In contrast, aphids treated with the scorpion peptide fused to the cell penetrating peptide had ˜1.8-fold less Buchnera/aphid DNA copies after 5 days of treatment (FIG. 46). These data indicate that treatment with the scorpion peptide fused to a cell penetrating peptide decreased endosymbiont levels.
  • The Scorpion Peptide Fused to a Cell Penetrating Peptide Freely Entered the Bacteriocytes to Act Against Buchnera
  • To test whether the cell penetrating peptide aids in the delivery of the scorpion peptide into the bacteriocytes directly, isolated bacteriocytes were directly exposed to the fusion protein and imaged. The bacteriocytes were dissected from the aphids in Schneider's medium supplemented with 1% w/v BSA (Schneider-BSA medium), and placed in an imaging well containing 20 ul of schneider's medium. A 100 ug lyophilized aliquot of the scorpion peptide was resuspended in 100 ul of the schneider's medium to produce 1 mg/ml solution, and 5 ul of this solution was mixed in to the well containing bacteriocytes. After 30 min of incubation at room temperature, the bacteriocytes were thoroughly washed to eliminate any excess free peptide in the solution. Images of the bacteriocytes were captured before and after the incubation (FIG. 47). The fusion peptide penetrated the bacteriocyte membranes and was directly available to Buchnera.
  • Together, this data demonstrates the ability to kill and decrease the development, longevity, and endogenous bacterial populations, e.g., fitness, of aphids by treating them with the scorpion antimicrobial peptide Uy192 fused to a cell penetrating peptide.
  • Example 23: Insects Treated with Vitamin Analogs
  • This Example demonstrates the treatment of aphids with the provitamin pantothenol which is the alcohol analog of pantothenic acid (Vitamin B5). Aphids have obligate endosymbiont bacteria, Buchnera, that help them make essential amino acids and vitamins, including Vitamin B5. A previous study has shown that pantothenol inhibits the growth of Plasmodium falciparium by inhibition of the specific parasite kinases (Saliba et al., 2005). It was hypothesized that treating insects with pantothenol would be detrimental for the bacterial-insect symbiosis therefore affecting insect fitness. This Example demonstrates that the treatment with pantothenol decreased insect fitness.
  • Therapeutic Design:
  • Pantothenol solutions were formulated depending on the delivery method:
  • 1) In artificial diet through the plants: with 0 (negative control) or 10 or 100 uM pantothenol formulated in an artificial diet (based on Akey and Beck, 1971; see Experimental Design) without essential amino acids (2 mg/ml histidine, 2 mg/ml isoleucine, 2 mg/ml leucine, 2 mg/ml lysine, 1 mg/ml methionine, 1.62 mg/ml phenylalanine, 2 mg/ml threonine, 1 mg/ml tryptophan, and 2 mg/ml valine).
  • 2) Leaf coating: 100 μl of 0.025% nonionic organosilicone surfactant solvent Silwet L-77 in water (negative control) or 100 μl of 50 μg/ml of rifampicin formulated in solvent solution was applied directly to the leaf surface and allowed to dry.
  • Plant Delivery Experimental Design
  • Aphids (eNASCO, Acyrthosiphon pisum) were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 25±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, first and second instar aphids were collected from healthy plants and divided into 3 different treatment groups: 1) artificial diet alone without essential amino acids, 2) artificial diet alone without essential amino acids and 10 uM pantothenol, and 3) artificial diet alone without essential amino acids and 100 uM pantothenol. Each treatment group received approximately the same number of individuals from each of the collection plants.
  • The artificial diet used was made as previously published (Akey and Beck, 1971 Continuous Rearing of the Pea Aphid, Acyrthosiphon pisum, on a Holidic Diet), with and without the essential amino acids (2 mg/ml histidine, 2 mg/ml isoleucine, 2 mg/ml leucine, 2 mg/ml lysine, 1 mg/ml methionine, 1.62 mg/ml phenylalanine, 2 mg/ml threonine, 1 mg/ml tryptophan, and 2 mg/ml valine), except neither diet included homoserine or beta-alanyltyrosine. The pH of the diets was adjusted to 7.5 with KOH and diets were filter sterilized through a 0.22 μm filter and stored at 4° C. for short term (<7 days) or at −80° C. for long term.
  • Pantothenol (Sigma Cat #295787) solutions were made at 10 uM and 100 uM in artificial diet without essential amino acids, sterilized by passing through a 0.22 μm syringe filter, and stored at −20° C. For treatments (see Therapeutic design), the appropriate amount of stock solution was added to the artificial diet without essential amino acids to obtain a final concentration of 10 or 100 uM pantothenol. The diet was then placed into a 1.5 ml Eppendorf tube with a fava bean stem with a leaf and the opening of the tube was closed using parafilm. This artificial diet feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant.
  • For each treatment, 16-20 aphids were placed onto each leaf. Artificial diet feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish housing the artificial feeding system when they were discovered.
  • In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th instar) was determined daily throughout the experiment. Once an aphid reached the 4th instar stage, they were given their own artificial feeding system in a deep petri dish so that fecundity could be monitored once they reached adulthood.
  • For adult aphids, new nymphs were counted daily and then discarded. At the end of the experiments, fecundity was determined as the mean number of offspring produced daily once the aphid reached adulthood. Pictures of aphids were taken throughout the experiment to evaluate size differences between treatment groups.
  • After 8 days of treatment, DNA was extracted from multiple aphids from each treatment group. Briefly, the aphid body surface was sterilized by dipping the aphid into a 6% bleach solution for approximately 5 seconds. Aphids were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and Buchnera and aphid DNA copy numbers were measured by qPCR. The primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS). The primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS). qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C. for 15 seconds, 3) 55° C. for 30 seconds, 4) repeat steps 2-3 40×, 5) 95° C. for 15 seconds, 6) 55° C. for 1 minute, 7) ramp change to 0.15 degrees C./s, 8) 95° C. for 1 second. qPCR data was analyzed using analytic (Thermo Fisher Scientific, QuantStudio Design and Analysis) software.
  • Vitamin Analog Treatment Delays Aphid Development
  • eNASCO 1st and 2nd instar aphids were divided into three separate treatment groups as defined in Plant Delivery Experimental Design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with artificial diet alone without essential amino acids began reaching maturity (5th instar stage) at approximately 5 days (FIG. 48A). Development was delayed in aphids treated with pantothenol, especially at days two and three post-treatment (FIG. 48A), indicating that treatment with pantothenol impairs aphid development. Eventually, most aphids from each treatment group reached maturity and began reproducing. In addition to monitoring developmental stage of aphids over time, aphids were also imaged and aphid area was determined. All aphids were the same size after 1 day of treatment, however, by 3 days post-treatment, aphids treated with pantothenol were smaller in area than untreated controls. Moreover, aphids treated with pantothenol had much less of an increase in body size (as determined by area) over the course of the experiment, compared to aphids treated with artificial diet alone without essential amino acids (FIG. 48B).
  • Vitamin Analog Treatment Increased Aphid Mortality
  • Survival rate of aphids was also measured during the treatments. Aphids reared on artificial diet alone without essential amino acids had higher survival rates compared to aphids treated with 10 or 100 uM pantothenol (FIG. 49), indicating that pantothenol treatment negatively affected aphid fitness.
  • Treatment with Pantothenol Decreases Aphid Fecundity
  • Fecundity was also monitored in aphids during the treatments. The fraction of aphids surviving to maturity and reproducing was determined. Approximately one quarter of aphids treated with artificial diet without essential amino acids survived to reach maturity by 8 days post-treatment (FIG. 50A). In contrast, only a little over 1/10th of aphids treated with 10 or 100 uM pantothenol survived to reach maturity and reproduce by 8 days post-treatment. The mean day aphids in each treatment group began reproducing was also measured and for all treatment groups, the mean day aphids began reproducing was 7 days (FIG. 50B). Additionally, the mean number of offspring per day produced by mature, reproducing aphids was also monitored. Aphids treated with artificial diet alone without essential amino acids produced approximately 7 offspring/day. In contrast, aphids treated with 10 and 100 uM pantothenol only produced approximately 4 and 5 offspring/day, respectively, shown in FIG. 50C. Taken together, these data indicate that pantothenol treatment resulted in a loss of aphid reproduction.
  • Pantothenol Treatment does not Affect Buchnera in Aphids
  • To test whether treatment with pantothenol, specifically resulted in loss of Buchnera in aphids, and that this loss impacted aphid fitness, DNA was extracted from aphids in each treatment group after 8 days of treatment and qPCR was performed to determine the Buchnera/aphid copy numbers. Aphids treated with artificial diet alone without essential amino acids had high ratios of Buchnera/aphid DNA copies as did aphids treated with each of the two concentrations of pantothenol (FIG. 51). These data indicate that pantothenol treatment does not affect Buchnera/aphid DNA copy number directly.
  • Leaf Coating Delivery Experimental Design:
  • Pantothenol powder was added to 0.025% of a nonionic organosilicone surfactant solvent, Silwet L-77, to obtain a final concentration of 10 uM pantothenol. The treatment was filter sterilized using a 0.22 um filter and stored at 4 degrees C. Aphids (eNASCO strain, Acyrthosiphon pisum) were grown on fava bean plants as described in a previous Example. For experiments, first instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (solvent solution only) and 2) 10 uM pantothenol in solvent. 100 ul of the solution was absorbed onto a 2×2 cm piece of fava bean leaf.
  • Each treatment group received approximately the same number of individuals from each of the collection plant. For each treatment, 20 aphids were placed onto each leaf. Aphids were monitored daily for survival and dead aphids were removed when they were discovered. In addition, the developmental stage (1st, 2nd, 3rd, 4th, 5th instar, and 5R, representing a reproducing 5th instar) was determined daily throughout the experiment.
  • Pantothenol Treatment Delivered Through Leaf Coating does not Affect Aphid Development
  • eNASCO 1st instar aphids were divided into two separate treatment groups as defined in the Experimental Design described herein. Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids placed on coated leaves treated with either the control or pantothenol solution matured at similar rates up to two days post-treatment (FIG. 52). These data indicate that leaf coating with pantothenol did not affect aphid development.
  • Pantothenol Treatment Delivered Through Leaf Coating Increased Aphid Mortality
  • Survival rate of aphids was also measured during the leaf coating treatments. Aphids placed on coated leaves with pantothenol had lower survival rates than aphids placed on coated leaves with the control solution (FIG. 53). These data indicate that pantothenol treatment delivered through leaf coating significantly (p=0.0019) affected aphid survival. All aphids died in this experiment and there were no remaining aphids left to extract DNA from and determine Buchnera/aphid DNA ratios.
  • Together this data described in the previous Examples demonstrate the ability to kill and decrease the development, reproductive ability, longevity, and endogenous bacterial populations, e.g., fitness, of aphids by treating them with pantothenol through multiple delivery methods.
  • Example 24: Insects Treated with a Cocktail of Amino Acid Transporters Inhibitors
  • This Example demonstrates the treatment of aphids with a cocktail of amino acid analogs. The objective of this treatment was to inhibit uptakes of glutamine into the bacteriocytes through the ApGLNT1 glutamine transporter. It has previously been shown that arginine inhibits glutamine uptake by the glutamine transporter (Price et al., 2014 PNAS), and we hypothesized that treatment with analogs of arginine, or other amino acid analogs, may also inhibit uptake of essential amino acids into the aphid bacteriocytes. This Example demonstrates that the decrease in fitness upon treatment was mediated through the modulation of bacterial populations endogenous to the insect that were sensitive to amino acid analogs. One targeted bacterial strain is Buchnera.
  • Therapeutic Design:
  • The amino acid cocktail was formulated for delivery through leaf perfusion and through the plant. This delivery method consisted of injecting leaves with approximately 1 ml of the amino acid cocktail in water (see below for list of components in the cocktail) or 1 ml of the negative control solution containing water only.
  • Leaf Perfusion and Delivery Through Plants Experimental Design:
  • Aphids LSR-1 (which harbor only Buchnera), Acyrthosiphon pisum were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 25±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, first instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treatment) and 2) amino acid cocktail treatment. The amino acid cocktail contained each of the following agents at the indicated final concentrations: 330 μML-NNA (N-nitro-L-Arginine; Sigma), 0.1 mg/ml L-canavanine (Sigma), 0.5 mg/ml D-arginine (Sigma), 0.5 mg/ml D-phenylalanine (Sigma), 0.5 mg/ml D-histidine (Sigma), 0.5 mg/ml D-tryptophan (Sigma), 0.5 mg/ml D-threonine (Sigma), 0.5 mg/ml D-valine (Sigma), 0.5 mg/ml D-methionine (Sigma), 0.5 mg/ml D-leucine, and 6 μM L-NMMA (citrate) (Cayman Chemical). ˜1 ml of the treatment solution was perfused into the fava bean leaf via injection and the stem of the plant was put into a 1.5 ml Eppendorf tube containing the treatment solution. The opening of the tube was closed using parafilm. This feeding system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant. For each treatment, a total of 56-58 aphids were placed onto each leaf (each treatment consisted of two replicates of 28-31 aphids). Each treatment group received approximately the same number of individuals from each of the collection plants. The feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered. The aphid developmental stage (1st, 2nd, 3rd, 4th, and 5th instar) was determined daily throughout the experiment and microscopic images were taken of the aphids on day 5 to determine aphid area measurements.
  • Stock solutions of L-NNA were made at 5 mM in water, sterilized by passing through a 0.22 μm syringe filter, and stored at −20° C. Stock solutions of L-canavanine were made at 100 mg/ml in water, sterilized by passing through a 0.22 μm syringe filter, and stored at 4° C. Stock solutions of D-arginine and D-threonine were made at 50 mg/ml in water, sterilized by passing through a 0.22 μm syringe filter, and stored at 4° C. Stock solutions of D-valine and D-methionine were made at 25 mg/ml in water, sterilized by passing through a 0.22 μm syringe filter, and stored at 4° C. Stock solutions of D-leucine were made at 12 mg/ml in water, sterilized by passing through a 0.22 μm syringe filter, and stored at 4° C. Stock solutions of D-phenylalanine and D-histidine were made at 50 mg/ml in 1M HCl, sterilized by passing through a 0.22 μm syringe filter, and stored at 4° C. Stock solutions of D-tryptophan were made at 50 mg/ml in 0.5M HCl, sterilized by passing through a 0.22 μm syringe filter, and stored at 4° C. Stock solutions of L-NMMA were made at 6 mg/ml in sterile PBS, sterilized by passing through a 0.22 μm syringe filter, and stored at −20° C. For treatments (see Therapeutic design), the appropriate amount of stock solution was added to water to obtain the final concentration of the agent in the cocktail as indicated above.
  • After 6 days of treatment, DNA was extracted from multiple aphids from each treatment group. Briefly, the aphid body surface was sterilized by dipping the aphid into a 6% bleach solution for approximately 5 seconds. Aphids were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and Buchnera and aphid DNA copy numbers were measured by qPCR. The primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 240) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 241) (Chong and Moran, 2016 PNAS). The primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 242) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 243) (Chong and Moran, 2016 PNAS). qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C. for 15 seconds, 3) 55° C. for 30 seconds, 4) repeat steps 2-3 40×, 5) 95° C. for 15 seconds, 6) 55° C. for 1 minute, 7) ramp change to 0.15 degrees C./s, 8) 95° C. for 1 second. qPCR data was analyzed using analytic (Thermo Fisher Scientific, QuantStudio Design and Analysis) software.
  • Treatment with a Cocktail of Amino Acid Analogs Delayed and Stopped Progression of Aphid Development
  • LSR-1 1st instar aphids were divided into two separate treatment groups as defined in Leaf perfusion and delivery through plants experimental design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with water began reaching maturity (5th instar stage) at day 5 post-treatment (FIG. 54A). By 6 days post-treatment, ˜20 percent of aphids treated with water reached the 5th instar stage. In contrast, less than 3 percent of the aphids treated with the amino acid cocktail reached the 5th instar stage, even after 6 days (FIG. 54A). This delay in development upon treatment with the amino acid cocktail was further exemplified by aphid size measurements taken at 5 days post-treatment. Aphids treated with water alone were approximately 0.45 mm2, whereas aphids treated with the amino acid cocktail were approximately 0.33 mm2 (FIG. 54B). These data indicate that treatment with the amino acid cocktail delayed aphid development, negatively impacting aphid fitness.
  • Treatment with an Amino Acid Analog Cocktail Resulted in Decreased Buchnera in Aphids
  • To test whether treatment with the amino acid analog cocktail specifically resulted in loss of Buchnera in aphids, and that this loss impacted aphid fitness, DNA was extracted from aphids in each treatment group after 6 days of treatment and qPCR was performed to determine the Buchnera/aphid copy numbers. Aphids placed on control solution had high ratios of Buchnera/aphid DNA copies. In contrast, aphids placed on AA cocktail treatment had a drastic reduction of Buchnera/aphid DNA copies (FIG. 55), indicating that the AA analog cocktail treatment eliminated endosymbiotic Buchnera.
  • Together, this data demonstrates the ability to decrease the development and endogenous bacterial populations, e.g., fitness, of aphids by treating them with a cocktail of amino acid analogs.
  • Example 25: Insects Treated with a Combination of Agents (Antibiotic, Peptide, and Natural Antimicrobial)
  • This Example demonstrates the treatment of insects with a combination of three antimicrobial agents—an antibiotic (rifampicin), a peptide (the scorpion peptide Uy192), and a natural antimicrobial (low molecular weight chitosan). In other Examples, each of these agents administered individually resulted in decreased aphid fitness and reduced endosymbiont levels. This Example demonstrates that through the delivery of a combination of treatments, insect fitness and endosymbiont levels were reduced as well as, or better than, treatment with each individual agent alone.
  • Therapeutic Design
  • The combination treatment was formulated for delivery through leaf perfusion and through the plant. This delivery method consisted of injecting leaves with approximately 1 ml of the combination treatment in water (with final concentrations of 100 μg/ml rifampicin, 100 μg/ml Uy192, and 300 μg/ml chitosan) or 1 ml of the negative control solution containing water only.
  • Leaf Perfusion and Delivery Through Plants Experimental Design
  • Aphids LSR-1 (which harbor only Buchnera), Acyrthosiphon pisum were grown on fava bean plants (Vroma vicia faba from Johnny's Selected Seeds) in a climate-controlled incubator (16 h light/8 h dark photoperiod; 60±5% RH; 25±2° C.). Prior to being used for aphid rearing, fava bean plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. To limit maternal effects or health differences between plants, 5-10 adults from different plants were distributed among 10 two-week-old plants, and allowed to multiply to high density for 5-7 days. For experiments, first instar aphids were collected from healthy plants and divided into 2 different treatment groups: 1) negative control (water treatment) and 2) a combination of 100 μg/ml rifampicin, 100 μg/ml Uy192, and 300 μg/ml chitosan treatment. ˜1 ml of the treatment solution was perfused into the fava bean leaf via injection and the stem of the plant was put into a 1.5 ml Eppendorf tube containing the treatment solution. The opening of the tube was closed using parafilm. This treatment system was then placed into a deep petri dish (Fisher Scientific, Cat # FB0875711) and aphids were applied to the leaves of the plant. For each treatment, a total of 56 aphids were placed onto each leaf (each treatment consisted of two replicates of 28 aphids).
  • Each treatment group received approximately the same number of individuals from each of the collection plants. The feeding systems were changed every 2-3 days throughout the experiment. Aphids were monitored daily for survival and dead aphids were removed from the deep petri dish when they were discovered. The aphid developmental stage (1st, 2nd, 3rd, 4th, and 5th instar) was determined daily throughout the experiment and microscopic images were taken of the aphids on day 5 to determine aphid area measurements.
  • Rifampicin (Tokyo Chemical Industry, LTD) stock solution was made at 25 mg/ml in methanol, sterilized by passing through a 0.22 μm syringe filter, and stored at −20° C. For treatment, the appropriate amount of stock solution was added to water to obtain a final concentration of 100 μg/ml rifampicin. Uy192 was synthesized by Bio-Synthesis at >75% purity. 1 mg of lyophilized peptide was reconstituted in 500 μl of 80% acetonitrile, 20% water, and 0.1% TFA. 100 μl (100 μg) was aliquoted into 10 individual Eppendorf tubes and allowed to dry. For treatment, 1 ml of water was added to a 100 μg aliquot of peptide to obtain the final concentration of 100 μg/ml Uy192. Chitosan (Sigma, catalog number 448869-50G) stock solution was made at 1% in acetic acid, sterilized autoclaving, and stored at 4° C. For treatments the appropriate amount of stock solution was added to water to obtain the final concentration of 300 μg/ml chitosan.
  • After 6 days of treatment, DNA was extracted from multiple aphids from each treatment group. Briefly, the aphid body surface was sterilized by dipping the aphid into a 6% bleach solution for approximately 5 seconds. Aphids were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and Buchnera and aphid DNA copy numbers were measured by qPCR. The primers used for Buchnera were Buch_groES_18F (CATGATCGTGTGCTTGTTAAG; SEQ ID NO: 228) and Buch_groES_98R (CTGTTCCTCGAGTCGATTTCC; SEQ ID NO: 229) (Chong and Moran, 2016 PNAS). The primers used for aphid were ApEF1a 107F (CTGATTGTGCCGTGCTTATTG; SEQ ID NO: 230) and ApEF1a 246R (TATGGTGGTTCAGTAGAGTCC; SEQ ID NO: 231) (Chong and Moran, 2016 PNAS). qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C. for 15 seconds, 3) 55° C. for 30 seconds, 4) repeat steps 2-3 40×, 5) 95° C. for 15 seconds, 6) 55° C. for 1 minute, 7) ramp change to 0.15 degrees C./s, 8) 95° C. for 1 second. qPCR data was analyzed using analytic (Thermo Fisher Scientific, QuantStudio Design and Analysis) software.
  • Treatment with a Combination of Three Antimicrobial Agents Delayed and Stopped Progression of Aphid Development
  • LSR-1 1st instar aphids were divided into two separate treatment groups as defined in Leaf perfusion and delivery through plants experimental design (described herein). Aphids were monitored daily and the number of aphids at each developmental stage was determined. Aphids treated with water began reaching maturity (5th instar stage) at day 5 post-treatment (FIG. 56A). By 6 days post-treatment, ˜20 percent of aphids treated with water reached the 5th instar stage. In contrast, no aphids treated with the combination of three agents reached the 5th instar stage, even after 6 days (FIG. 56A). This delay in development upon combination treatment was further exemplified by aphid size measurements taken at 5 days post-treatment. Aphids treated with water alone were approximately 0.45 mm2, whereas aphids treated with the 3-agent combination were approximately 0.26 mm2 (FIG. 56B). These data indicate that treatment with a combination of agents delayed aphid development, negatively impacting aphid fitness.
  • Treatment with a Combination of Three Antimicrobial Agents Increased Aphid Mortality
  • Survival was also monitored daily after treatment. At 2 days post-treatment, approximately 75 percent of aphids treated with water were alive, whereas only 62 percent of aphids treated with the combination of agents were alive. This trend of more aphids surviving treatment in the control (water-treated) group continued for the duration of the experiment. At 6 days post-treatment, 64 percent of control (water-treated) aphids survived, whereas 58 percent of aphids treated with a combination of rifampicin, Uy192, and chitosan survived (FIG. 57). These data indicate that the combination of treatments negatively affected aphid survival.
  • Treatment with a Combination of Three Agents Resulted in Decreased Buchnera in Aphids
  • To test whether treatment with a combination of a peptide, antibiotic, and natural antimicrobial specifically resulted in loss of Buchnera in aphids, and that this loss impacted aphid fitness, DNA was extracted from aphids in each treatment group after 6 days of treatment and qPCR was performed to determine the Buchnera/aphid copy numbers. Aphids treated with water alone ratios of approximately 2.3 Buchnera/aphid DNA (FIG. 58). In contrast, aphids treated with the combination of a peptide, antibiotic, and natural antimicrobial had approximately 2-fold lower ratios of Buchnera/aphid DNA (FIG. 58). These data indicate that combination treatment reduced endosymbiont levels, which resulted in decreased aphid fitness.
  • Together, this data demonstrates the ability to decrease the development and endogenous bacterial populations, e.g., fitness, of aphids by treating them with a combination of a peptide, antibiotic, and natural antimicrobial.
  • Example 26: Insects Treated with an Antibiotic Solution
  • This Example demonstrates the effects of treatment of weevils with ciprofloxacin, a bactericidal antibiotic that inhibits the activity of DNA gyrase and topoisomerase, two enzymes essential for DNA replication. This Example demonstrates that the phenotypic effect of ciprofloxacin on another model insect, weevils, was mediated through the modulation of bacterial populations endogenous to the insects that were sensitive to ciprofloxacin. One targeted bacterial strain is Sitophilus primary endosymbiont (SPE, Candidatus Sodalis pierantonius).
  • Experimental Design:
  • Sitophilus maize weevils (Sitophilus zeamais) were reared on organic corn at 27.5° C. and 70% relative humidity. Prior to being used for weevil rearing, corn was frozen for 7 days and then tempered to 10% humidity with sterile water. For experiments, adult male/female mating pairs were divided into 3 different treatment groups that were done in triplicate: 1) water control, 2) 250 μg/ml ciprofloxacin, and 3) 2.5 mg/ml ciprofloxacin. Ciprofloxacin (Sigma) stock solutions were made at 25 mg/ml in 0.1N HCl, sterilized by passing through a 0.22 μm syringe filter, and stored at −20° C. For treatments, the appropriate amount of stock solution was diluted in sterile water.
  • The weevils were subjected to three successive treatments:
      • 1. The first treatment included soaking 25 g of corn with each of the three treatment groups listed above: 1) water control, 2) 250 μg/ml ciprofloxacin, and 3) 2.5 mg/ml ciprofloxacin. Briefly, 25 g of corn was placed into a 50 ml conical tube and each of the treatment was added to fill the tube completely. The tube was put on a shaker for 1.5 hours after which, the corn was removed and placed into a deep petri dish and air dried. Male/Female mating pairs were then added to each treatment group and allowed to feed for 4 days.
      • 2. After 4 days, mating pairs were removed and subjected to a second treatment by putting them onto 25 g of new corn treated with 1) water control, 2) 250 μg/ml ciprofloxacin, and 3) 2.5 mg/ml ciprofloxacin. Mating pairs fed and laid eggs on this corn for 7 days. The corn from the second treatment was assessed for the emergence of offspring (see assessment of offspring, below)
      • 3. Mating pairs were subjected to a final treatment which included a combination of submerging them into the treatment (1) water control, 2) 250 μg/ml ciprofloxacin, and 3) 2.5 mg/ml ciprofloxacin for 5 seconds and then placing them in a vial with 10 corn kernels that had been coated with 1 ml of 1) water control, 2) 250 μg/ml ciprofloxacin, and 3) 2.5 mg/ml ciprofloxacin.
  • Weevil survival was monitored daily for 18 days, after which DNA was extracted from the remaining weevils in each group. Briefly, the weevil body was surface sterilized by dipping the weevil into a 6% bleach solution for approximately 5 seconds. Weevils were then rinsed in sterile water and DNA was extracted from each individual aphid using a DNA extraction kit (Qiagen, DNeasy kit) according to manufacturer's instructions. DNA concentration was measured using a nanodrop nucleic acid quantification, and SPE and weevil DNA copy numbers were measured by qPCR. The primers used for SPE were qPCR_Sod_F (ATAGCTGTCCAGACGCTTCG; SEQ ID NO: 244) and qPCR_Sod_R (ATGTCGTCGAGGCGATTACC; SEQ ID NO: 245). The primers used for weevil (β-actin) were SACT144_FOR (GGTGTTGGCGTACAAGTCCT; SEQ ID NO: 246) and SACT314_REV (GAATTGCCTGATGGACAGGT; SEQ ID NO: 247) (Login et al., 2011). qPCR was performed using a qPCR amplification ramp of 1.6 degrees C./s and the following conditions: 1) 95° C. for 10 minutes, 2) 95° C. for 15 seconds, 3) 57° C. for 30 seconds, 4) repeat steps 2-3 40×, 5) 95° C. for 15 seconds, 6) 55° C. for 1 minute, 7) ramp change to 0.15 degrees C./s, 8) 95° C. for 1 second. qPCR data was analyzed using analytic (Thermo Fisher Scientific, QuantStudio Design and Analysis) software.
  • Assessment of Offspring:
  • After 25 days, one replicate of the corn kernels from the second treatment of the adult mating pairs was dissected (see Experimental Design, above) to check for the presence of any developing larvae, pupae, or adult weevils. Most of the development of Sitophilus weevils takes place within the grain/rice/corn and adults emerge from the kernels once their development is complete. Corn kernels were gently dissected open with a scalpel and any developing weevils were collected and the percent of adults, pupae, and larvae were determined. The weevils from the dissection were then surface sterilized and the levels of SPE were determined by qPCR. Corn kernels from the remaining two replicates of each of the groups from the second treatment were not dissected but checked daily for the emergence of adult weevils.
  • Assessment of Antibiotic Penetration into Corn
  • 25 mg of corn kernels was placed into a 50 ml conical tube and water or 2.5 mg/ml or 0.25 mg/ml ciprofloxacin in water was added to fill the tube. The kernels were soaked for 1.5 hours as described herein. After soaking, kernels were air dried and assayed to determine whether the antibiotic was able to coat and penetrate the kernel. To test this, a concentrated sample of Escherichia coli DH5α in water was spread onto 5 Luria Broth (LB) plates. To each plate the following was done, 1) a corn kernel soaked in water was added, 2) an entire corn kernel that had been soaked with 2.5 or 0.25 mg/ml ciprofloxacin was added, and 3) a half of corn kernel that had been soaked with 2.5 or 0.25 mg/ml ciprofloxacin was added and placed inside down on the plate. The plates were incubated overnight at 37 degrees C. and bacterial growth and/or zone(s) of inhibition were assessed the next day.
  • Soaking Corn Kernels in Antibiotics Allowed Antibiotics to Coat the Surface and Penetrate Corn Kernels.
  • To test whether ciprofloxacin could coat the surface of a corn kernel after a kernel, corn kernels were soaked in water without antibiotics or water with 2.5 or 0.25 mg/ml ciprofloxacin (as described above). A concentrated culture of E. coli was then spread onto LB plates and one of the coated kernels was then placed onto the center of the plate. The plates were incubated overnight, and bacterial growth was assessed the next day.
  • A lawn of bacteria grew on the entire plate with the corn kernel that had been coated in water without any antibiotics (FIG. 56A). In contrast, no bacteria grew on plates with entire corn kernels that had been soaked in either of the two concentrations of ciprofloxacin (FIG. 56B, left panels). These data show that the coating method employed in these experiments allowed for ciprofloxacin to successfully coat the surface of corn kernels and inhibit bacterial growth.
  • To test whether ciprofloxacin could penetrate the corn kernel, corn kernels soaked in 2.5 or 0.25 mg/ml ciprofloxacin were cut in half and placed cut side down on an LB plate with a concentrated culture of E. coli. The plates were incubated overnight and the next day bacterial growth was assessed. No bacterial growth was present on the plates with the kernels soaked in either concentration of antibiotic, indicating that ciprofloxacin penetrated the corn kernel (FIG. 56B, right panels). Together, these data indicate that the method of corn kernel soaking used for these experiments successfully coated and penetrated the kernels with the antibiotic.
  • Antibiotic Treatment Decreases SPE Levels in the F0 Generation.
  • S. zeamais mating pairs were divided into three separate treatment groups as defined in Experimental Design (above). Weevils were monitored daily and all weevils remained alive for the course of the experiment. After 18 days of treatment, weevils were surface sterilized, genomic DNA was extracted, and SPE levels were measured by qPCR. Weevils treated with water only had approximately 4 and 8-fold higher amounts of SPE compared to weevils treated with 250 ug/ml and 2.5 mg/ml ciprofloxacin, respectively (FIG. 57). These data indicate that treatment of weevils with ciprofloxacin resulted in decreased levels of SPE.
  • Antibiotic Treatment Delays the Development and Decreases the SPE Levels of the F1 Generation of Weevils.
  • The development of the F1 generation of weevils was assessed by dissecting corn kernels that F0 mating pairs had oviposited on for 7 days and were subsequently removed. After 25 days, 12 offspring were found in water/control-treated corn with the majority (˜67%) of offspring being in the pupae form (FIG. 58A). 13 and 20 offspring were found in weevils treated with 250 ug/ml and 2.5 mg/ml ciprofloxacin, respectively. Interestingly, weevils treated with antibiotic showed a delay in development compared to control treated weevils with the majority (38 and 65% for 250 ug/ml and 2.5 mg/ml ciprofloxacin, respectively) of the offspring being in the larval form (FIG. 58A).
  • Genomic DNA was extracted from weevils dissected from the corn kernels and qPCR was performed to measure the levels of SPE. Water treated F1 weevils had approximately 4-fold higher levels of SPE compared to weevils treated with 2.5 mg/ml ciprofloxacin (FIG. 58B). These data indicate that treatment with ciprofloxacin reduced the levels of the SPE in weevils which led to a delay in development.
  • Antibiotic Treatment Decreased Weevil Reproduction
  • The number of weevils that emerged over the course of 43 days after the initial mating pairs were removed from the second treatment was used a measure for the fecundity FIGS. 59A and 59B). The first weevil emerged on day 29, and the total number of weevils that emerged till day 43 were counted. While weevils treated with water and 250 ug/ml had similar amount of F1 offspring, there were much less offspring that emerged from the 2.5 mg/ml treatment group, indicating that antibiotic treatment decreased SPE levels affected weevil fecundity.
  • Together with the previous Examples, this data demonstrate the ability to kill and decrease the development, reproductive ability, longevity and endogenous bacterial populations, e.g., fitness, of weevils by treating them with an antibiotic through multiple delivery methods.
  • Example 27: Mites Treated with an Antibiotic Solution
  • This Example demonstrates the ability to kill, decrease the fitness of two-spotted spider mites by treating them with rifampicin, a narrow spectrum antibiotic that inhibits DNA-dependent RNA synthesis by inhibiting a bacterial RNA polymerase, and doxycycline, a broad-spectrum antibiotic that prevents bacterial reproduction by inhibiting protein synthesis. The effect of rifampicin and doxycycline on mites was mediated through the modulation of bacterial populations endogenous to the mites that were sensitive to the antibiotics.
  • Insects, such as mosquitoes, and arachnids, such as ticks, can function as vectors for pathogens causing severe diseases in humans and animals such as Lyme disease, dengue, trypanosomiases, and malaria. Vector-borne diseases cause millions of human deaths every year. Also, vector-borne diseases that infect animals, such as livestock, represent a major global public health burden. Thus, there is a need for methods and compositions to control insects and arachnids that carry vector-borne diseases. Two-spotted spider mites are arachnids in the same subclass as ticks. Therefore, this Example demonstrates methods and compositions used to decrease the fitness of two-spotted spider mites and provide insight into decreasing tick fitness.
  • Therapeutic Design
  • Two treatments were used for these experiments 1) 0.025% Silwet L-77 (negative control) or 2) a cocktail of antibiotics containing 250 μg/ml rifampicin and 500 μg/ml doxycycline. Rifampicin (Tokyo Chemical Industry, LTD) stock solutions were made at 25 mg/ml in methanol, sterilized by passing through a 0.22 μm syringe filter, and stored at −20° C. Doxcycline (manufacturer) stock solutions were made at 50 mg/mL in water, sterilized by passing through a 0.22 μm syringe filter, and stored at −20° C.
  • Experimental Design:
  • This assay tested an antibiotic solution on two-spotted spider mites and determined how their fitness was altered by targeting endogenous microbes.
  • Kidney plants were grown in potting soil at 24° C. with 16 h of light and 8 h of darkness. Mites were reared on kidney bean plants at 26° C. and 15-20% relative humidity. For treatments, one-inch diameter leaf disks were cut from kidney bean leaves and sprayed with either 0.025% Silwet L-77 (negative control) or the antibiotic cocktail (250 μg/ml rifampicin and 500 μg/ml doxycycline in 0.025% Silwet L-77) using a Master Airbrush Brand Compressor Model C-16-B Black Mini Airbrush Air Compressor. The compressor was cleaned with ethanol before, after, and between treatments. The liquid was feed through the compressor using a quarter inch tube. A new tube was used for each treatment.
  • After leaf discs dried, four of each treatment were placed in a cup on top of a wet cotton ball covered with a piece of kimwipe. Each treatment setup was done in duplicate. 25 adult female mites were then placed in the cup. On day 4, the females were removed from the cup and the eggs and larvae were left on the leaf discs.
  • On day 11, mites at the protonymph stage and the deutonymph stage were taken from the cups and placed in their own tube so survival could be measured. Each tube contained a moist cotton ball covered with a piece of kimwipe with a half inch leaf disc treated with the negative control or the cocktail.
  • The mites were observed under a dissecting microscope daily after feeding on a leaf treated with the antibiotic or the control solutions, and classified according to the following categories:
      • Alive: they walked around when on their legs or moved after being poked by a paint brush.
      • Dead: immobile and did not react to stimulation from a paint brush
  • A sterile paint brush was used to stimulate the mites by touching their legs. Mites classified as dead were kept throughout the assay and rechecked for movement daily. The assays were carried out at 26° C. and 15-20% relative humidity.
  • Antibiotic Treatment Increased Mite Mortality
  • The survival rates of the two-spotted spider mites treated with the antibiotic cocktail were compared to the mites treated with the negative control. The survival rates of the mites treated with the cocktail were decreased compared to the control (FIG. 60).
  • This data demonstrates the ability to decrease fitness of mites by treating them with a solution of antibiotics.
  • Example 28: Insects Treated with a Solution of Purified Phage
  • This Example demonstrates the isolation and purification of phages from environmental samples that targeted specific insect bacteria. This Example also demonstrates the efficacy of isolated phages against the target bacteria in vitro by plaque assays, by measuring their oxygen consumption rate, and the extracellular acidification rate. Finally, this Example demonstrates the efficacy of the phages in vivo, by measuring the ability of the phage to the target bacteria from flies by treating them with a phage isolated against the bacteria. This Example demonstrates that a pathogenic bacterium that decreased the fitness of an insect can be cleared using a phage to target the bacteria. Specifically, Serratia marcescens which is a pathogenic bacterium in flies can be cleared with the use of a phage that was isolated from garden compost.
  • Experimental Design
  • Isolation of Specific Bacteriophages from Natural Samples:
  • Bacteriophages against target bacteria were isolated from environmental source material. Briefly, a saturated culture of Serratia marcescens was diluted into fresh double-strength tryptic soy broth (TSB) and grown for ˜120 minutes to early log-phase at 24-26° C., or into double-strength Luria-Bertani (LB) broth and grown for ˜90 min at 37° C. Garden compost was prepared by homogenization in PBS and sterilized by 0.2 μm filtration. Raw sewage was sterilized by 0.2 μm filtration. One volume of filtered source material was added to log-phase bacterial cultures and incubation was continued for 24 h. Enriched source material was prepared by pelleting cultures and filtering supernatant fluid through 0.45 μm membranes.
  • Phages were isolated by plating samples onto double-agar bacterial lawns. Stationary bacterial cultures were combined with molten 0.6% agar LB or TSB and poured onto 1.5% agar LB or TSB plates. After solidification, 2.5 μL of phage sample dilutions were spotted onto the double-agar plates and allowed to absorb. Plates were then wrapped and incubated overnight at 25° C. (TSA) or 37° C. (LB), then assessed for the formation of visible plaques. Newly isolated plaques were purified by serial passaging of individual plaques on the target strain by picking plaques into SM Buffer (50 mM Tris-HCl [pH 7.4], 10 mM MgSO4, 100 mM NaCl) and incubating for 15 min at 55° C., then repeating the double-agar spotting method from above using the plaque suspension.
  • Bacteriophages were successfully isolated from both sewage and compost, as detailed above. Plaque formation was clearly evident after spotting samples onto lawns of the S. marcescens bacteria used for the enrichments.
  • Passaging, Quantification, and Propagation of Bacteriophages:
  • Propagation and generation of phage lysates for use in subsequent experiments was performed using bacteriophages isolated and purified as above. Briefly, saturated bacterial cultures were diluted 100-fold into fresh medium and grown for 60-120 minutes to achieve an early-logarithmic growth state for effective phage infection. Phage suspensions or lysates were added to early log phase cultures and incubation was continued until broth clearing, indicative of phage propagation and bacterial lysis, was observed, or until up to 24 h post-infection. Lysates were harvested by pelleting cells at 7,197×g for 20 min, then filtering the supernatant fluid through 0.45 or 0.2 μm membranes. Filtered lysates were stored at 4° C.
  • Enumeration of infective phage particles was performed using the double-agar spotting method. Briefly, a 1:10 dilution series of samples was performed in PBS and dilutions were spotted onto solidified double-agar plates prepared with the host bacteria as above. Plaque-forming units (PFU) were counted after overnight incubation to determine the approximate titer of samples.
  • In Vitro Analysis of Isolated Phages Measuring Bacterial Respiration:
  • A Seahorse XFe96 Analyzer (Agilent) was used to measure the effects of phages on bacteria by monitoring oxygen consumption rate (OCR) and extracellular acidification rate (ECAR) during infection. XFe96 plates were coated the day prior to experiments by 15 μL of a 1 mg/mL poly-L-lysine stock per well and dried overnight at 28° C. and XFe96 probes were equilibrated by placing into wells containing 200 μL of XF Calibrant and incubating in the dark at room temperature. The following day, poly-L-lysine coated plates were washed twice with ddH2O. Saturated overnight cultures of E. coli BL21 (LB, 37° C.) or S. marcescens (TSB, 25° C.) were subcultured at 1:100 into the same media and grown with aeration for ˜2.5 h at 30° C. Cultures were then diluted to O.D.600 nm˜0.02 using the same media. Treatments were prepared by diluting stocks into SM Buffer at 10× final concentration and loading 20 μL of the 10× solutions into the appropriate injection ports of the probe plate. While the probes were equilibrating in the XFe96 Flux Analyzer, bacterial plates were prepared by adding 90 μL of bacterial suspensions or media controls and spun at 3,000 rpm for 10 min. Following centrifugation, an additional 90 μL of the appropriate media were added gently to the wells so as not to disturb bacterial adherence, bringing the total volume to 180 μL per well.
  • The XFe96 Flux Analyzer was run at ˜30° C., following a Mix, Wait, Read cycling of 1:00, 0:30, 3:00. Four cycles were completed to permit equilibration/normalization of bacteria, then the 20 μL treatments were injected and cycling continued as above, for a total time of approximately 6 h. Data were analyzed using the Seahorse XFe96 Wave software package.
  • The effects of isolated bacteriophages were assayed by measuring oxygen consumption rate (OCR) and extracellular acidification rate (ECAR) of bacteria with a Seahorse XFe96 Analyzer. When E. coli was infected with phage T7 and S. marcescens infected with the newly isolated ϕSmVL-C1, dramatic decreases in OCR were observed following brief bursts in this rate (FIG. 64). For both phages with both host organisms, the Seahorse assay permitted the detection of successful phage infection without the need for plaque assays. Thus, this method is applicable for detecting phage infection of a host organism not amenable to traditional phage detection methods.
  • SYBR Gold Transduction Assay for Infection Identification:
  • Bacteriophage preparations were prepared for staining by pretreating with nucleases to remove extraviral nucleic acids that could interfere with fluorescent signal interpretation. Briefly, MgCl2 was added to 10 mL of phage lysate at 10 mM final concentration, and RNase A (Qiagen) and DNase I (Sigma) were both added to final concentrations of 10 μg/mL. Samples were incubated for 1 h at room temperature. After nuclease treatment, 5 mL of lysates were combined with 1 μL of SYBR Gold (Thermo, 10,000×) and incubated at room temperature for ˜1.5 h. Excess dye was subsequently removed from samples using Amicon ultrafiltration columns. Briefly, Amicon columns (15 mL, 10 k MWCO) were washed by adding 10 mL of SM Buffer and spinning at 5,000×g, 4° C. for 5 min. Labeled phage samples were then spun through the columns at 5,000×g, 4° C. until the volume had decreased by approximately 10-fold (15-30 min). To wash samples, 5 mL SM Buffer was added to each reservoir and the spin repeated, followed by two additional washes. After the third wash, the retained samples were pipetted out from the Amicon reservoirs and brought up to approximately 1 mL using SM Buffer. To remove larger contaminants, washed and labeled phage samples were spun at 10,000×g for 2 min, and the supernatants were subsequently filtered through 0.2 μm membranes into black microtubes and stored at 4° C.
  • Saturated bacterial cultures (E. coli MG1655 grown in LB at 37° C., S. marcescens and S. symbiotica grown in TSB at 26° C.) were prepared by spinning down 1 mL aliquots and washing once with 1 mL PBS before a final resuspension using 1 mL PBS. Positive control labeled bacteria were stained by combining 500 μL of washed bacteria with 1 μL of SYBR Gold and incubating for 1 h in the dark at room temperature. Bacteria were pelleted by spinning at 8,000×g for 5 min and washed twice with an equal volume of PBS, followed by resuspension in a final volume of 500 μL PBS. A volume of 25 μL of stained bacteria was combined with 25 μL of SM Buffer in a black microtube, to which 50 μL of 10% formalin (5% final volume, ˜2% formaldehyde) was added and mixed by flicking. Samples were fixed at room temperature for ˜3 h and then washed using Amicon ultrafiltration columns. Briefly, 500 μL of picopure water was added to Amicon columns (0.5 mL, 100 k MWCO) and spun at 14,000×g for 5 min to wash membranes. Fixed samples were diluted by adding 400 μL of PBS and then transferred to pre-washed spin columns and spun at 14,000×g for 10 min. Columns were transferred to fresh collection tubes, and 500 μL of PBS was added to dilute out fixative remaining in the retentate. Subsequently, two additional PBS dilutions were performed, for a total of three washes. The final retentates were diluted to roughly 100 μL, then columns were inverted into fresh collection tubes and spun at 1,000×g for 2 min to collect samples. Washed samples were transferred to black microtubes and stored at 4° C.
  • For transduction experiments and controls, 25 μL of bacteria (or PBS) and 25 μL of SYBR Gold labeled phage (or SM Buffer) were combined in black microtubes and incubated static for 15-20 min at room temperature to permit phage adsorption and injection into recipient bacteria. Immediately after incubation, 50 μL of 10% formalin was added to samples and fixation was performed at room temperature for ˜4 h. Samples were washed with PBS using Amicon columns, as above.
  • Injection of bacteriophage nucleic acid was required for a phage to successfully infect a host bacterial cell. Coliphage P1kc labeled with SYBR Gold and co-incubated with S. marcescens revealed the presence of fluorescent bacteria by microscopy, validating the use of this assay in a phage isolation pipeline. As with the Seahorse assay, this approach provided an alternative to traditional phage methods to permit expansion to organisms not amenable to plaque assay. Additionally, the SYBR Gold transduction assay did not require bacterial growth, so is applicable to analysis of phages targeting difficult or even non-culturable organisms, including endosymbionts such as Buchnera.
  • Testing In Vivo Efficacy of the Phages Against S. marcescens in Drosophila melanogaster Flies
  • S. marcescens cultures were grown in Tryptic Soy Broth (TSB) at 30° C. with constant shaking at 200 rpm.
  • The media used to rear fly stocks was cornmeal, molasses and yeast medium (11 g/l yeast, 54 g/l yellow cornmeal, 5 g/l agar, 66 ml/l molasses, and 4.8 ml/l propionic acid). All the components of the diet except propionic acid were heated together to 80° C. in deionized water with constant mixing for 30 minutes and let to cool to 60° C. Propionic acid was then mixed in and 50 ml of the diet was aliquoted into individual bottles and allowed to cool down and solidify. The flies were raised at 26° C., 16:8 hour light:dark cycle, at around 60% humidity.
  • To infect the flies with S. marcescens, a fine needle (About 10 um wide tip) was dipped in a dense overnight stationary phase culture and the thorax of the flies was punctured. For this experiment, four replicates of 10 males and 10 females each were infected with S. marcescens using the needle puncturing method as the positive control for fly mortality. For the treatment group, four replicates of 10 males and 10 females each were pricked with S. marcescens and a phage solution containing about 108 phage particles/ml. Finally, two replicates of 10 males and 10 females each that were not pricked or treated in anyway were used as a negative control for mortality.
  • Flies in all conditions were placed in food bottles and incubated at 26° C., 16:8 light:dark cycle, at 60% humidity. The number of alive and dead flies were counted every day for four days after the pricking. All The flies pricked with S. marcescens alone were all dead within 24 hours of the treatment. In comparison, more than 60% of the flies in the phage treatment group, and all the flies in the untreated control group were alive at that time point (FIG. 65). Further, most of the flies in the phage treatment group and the negative control group went on to survive for four more days when the experiment was terminated.
  • To ascertain the reason of death of the flies, dead flies from both the S. marcescens and S. marcescens+phage pricked flies were homogenized and plated out. Four dead flies from each of the four replicates of both the S. marcescens and the S. marcescens+phage treatment were homogenized in 100 ul of TSB. A 1:100 dilution was also produced by diluting the homogenate in TSB. 10 ul of the concentrated homogenate as well as the 1:100 dilution was plated out onto TSA plates, and incubated overnight at 30° C. Upon inspection of the plates for bacteria growth, all the plates from the dead S. marcescens pricked flies had a lawn of bacteria growing on them, whereas the plates from the dead S. marcescens+phage pricked flies had no bacteria on them. This shows that in the absence of the phage, S. marcescens likely induced septic shock in the flies leading to their fatality. However, in the presence of the phage, the mortality may have been due to injury caused by the pricking with the needle.
  • Other Embodiments
  • Although the foregoing invention has been described in some detail by way of illustration and example for purposes of clarity of understanding, the descriptions and examples should not be construed as limiting the scope of the invention. The disclosures of all patent and scientific literature cited herein are expressly incorporated in their entirety by reference.

Claims (9)

1. A method of decreasing fitness of a vector for an animal pathogen, the method comprising:
delivering an antimicrobial peptide having at least 90% sequence identity with one or more of the following: cecropin (SEQ ID NO: 82), melittin, copsin, drosomycin (SEQ ID NO: 93), dermcidin (SEQ ID NO: 81), andropin (SEQ ID NO: 83), moricin (SEQ ID NO: 84), ceratotoxin (SEQ ID NO: 85), abaecin (SEQ ID NO: 86), apidaecin (SEQ ID NO: 87), prophenin (SEQ ID NO: 88), indolicidin (SEQ ID NO: 89), protegrin (SEQ ID NO: 90), tachyplesin (SEQ ID NO: 91), or defensin (SEQ ID NO: 92) to the vector.
2. The method of claim 1, wherein the delivery comprises delivering the antimicrobial peptide to at least one habitat where the vector grows, lives, reproduces, feeds, or infests.
3. The method of claim 1, wherein the antimicrobial peptide is delivered in an insect comestible composition for ingestion by the vector.
4. The method of claim 1, wherein the antimicrobial peptide is formulated as a liquid, a solid, an aerosol, a paste, a gel, or a gas composition.
5. The method of claim 1, wherein the insect is at least one of a mosquito, midge, louse, sandfly, tick, triatomine bug, tsetse fly, or flea.
6. A composition comprising an antimicrobial peptide having at least 90% sequence identity with one or more of the following: cecropin, melittin, copsin, drosomycin, dermcidin, andropin, moricin, ceratotoxin, abaecin, apidaecin, prophenin, indolicidin, protegrin, tachyplesin, or defensin formulated for targeting a microorganism in a vector for an animal pathogen.
7. The composition of claim 6, wherein the antimicrobial peptide is at a concentration of about 0.1 ng/g to about 100 mg/g in the composition.
8. The composition of claim 6, wherein the antimicrobial peptide further comprises a targeting domain.
9. The composition of claim 6, wherein the antimicrobial peptide further comprises a cell penetrating peptide.
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