WO2014100874A1 - Composição nematotóxica de efeito sinérgico, uso de composição nematotóxica de efeito sinérgico - Google Patents
Composição nematotóxica de efeito sinérgico, uso de composição nematotóxica de efeito sinérgico Download PDFInfo
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- WO2014100874A1 WO2014100874A1 PCT/BR2013/000598 BR2013000598W WO2014100874A1 WO 2014100874 A1 WO2014100874 A1 WO 2014100874A1 BR 2013000598 W BR2013000598 W BR 2013000598W WO 2014100874 A1 WO2014100874 A1 WO 2014100874A1
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- composition according
- nematotoxic
- synergistic
- synergistic effect
- nematotoxic composition
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION 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
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/12—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom not containing sulfur-to-oxygen bonds, e.g. polysulfides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/02—Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/06—Unsaturated carboxylic acids or thio analogues thereof; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
- A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
Definitions
- Patent Descriptive Report "NEMATOTOXIC SYNERGIC EFFECT COMPOSITION, USE OF SYNERGIC NEMATOTOXIC COMPOSITION"
- the present invention is in the context of green chemistry and relates generally to compositions used for agricultural pest control and, in a particular embodiment, to compositions useful in combating nematodes.
- gall nematodes are among the most harmful pests in areas of intensive agriculture for important crops such as coffee, sugar cane, soybeans, beans, tobacco, fruit and vegetables. Damage caused by these phytopathogens includes the formation of galls that cause imbalance in the absorption of water and nutrients from the soil, making plants much more sensitive to any environmental modification or pest and pathogen attack.
- resistant varieties are a recommended way to control pests and diseases, but the number of resistant cultivars is limited as well as the genetic diversity related to this resistance (Dufour et al., 2003; Ferraz & Freitas, 2000).
- Integrated pest management is a targeted strategy, but it requires rigorous planning, intensive crop management, more time and may cost more than pesticides (Gentz, 2010).
- the most widely used control strategy is centered on the massive use of synthetic nematicides which result in compromised natural environment and public health (Abad, et al., 2008).
- the use of natural nematotoxic plant compounds constitutes a strategy for the control of this phytonematoid.
- the present invention provides a viable alternative to the use of environmentally harmful nematotoxic compounds which may harm human health.
- This alternative is embodied by a nematotoxic nematode control composition which can be used on plants, plant parts and soil.
- the respective technology comes from unexpected results obtained from experiments with extracts of the plant Canavalia ensiformis resulting in an unprecedented nematotoxic composition comprising a specific combination of substances naturally found in the extract.
- the present invention provides a composition comprising a specific combination of naturally occurring substances that act synergistically in controlling nematodes in plants.
- the synergistic nematotoxic composition of the present invention comprises as active compounds:
- Embodiments of the present composition include solutions, emulsions, wettable powders, suspensions, powders, dusts, pastes, soluble powders, granules, suspension-emulsion concentrates, natural and synthetic materials impregnated with active compounds and microencapsulations in polymeric substances. Additionally, the composition of the invention may further comprise formulation ingredients including, among them, liquid carriers / liquid solvents and / or solid carriers and / or surfactants and / or tackifiers and / or colorants
- a second embodiment of the respective invention relates to the use of the synergistic nematotoxic composition for controlling nematodes in plants.
- Figure 1 Effect of aqueous extracts of antagonist plant seeds on (J2) M. incognita. Bars represent the percentage of live nematodes after 48 hours of exposure. Concentration of 1mg of each extract to a final volume of 0.3ml_ and 100 second stage juveniles was used in the triplicate bioassay using distilled water as negative control.
- FIG. 2 Effect of 0.5mg (0.5mg / 0.3ml final vol) of external (DECe) and internal (DICe) dialysates on M. incognita J2.
- the bars represent the percentage of dead nematodes.
- Controls were performed with distilled water (dH2O), bovine serum albumin (BSA) and C. ensiformis aqueous raw extract (ECACe).
- Recovery test performed for certification of the nematicidal effect.
- FIG. 3- Effect of the preheated (50 ° C) C. ensiformis DE against M. incognita J2 demonstrating the thermal stability of the analyzed fraction.
- the bioassay was performed in triplicate and the bars represent the percentage of dead nematodes. Distilled water was used as a negative control. Recovery test performed for certification of the nematicidal effect.
- Figure 4 Effect of 500pg (500 pg / 0.3mL) of C. ensiformis DE on free-living saprophytic nematodes (VL) and M. incognita J2.
- the bars represent the percentage of dead nematodes.
- the bioassay controls have M. incognita nematodes (VL) and J2 immersed separately in distilled water.
- Figure 5 Test of hemolytic activity using bovine blood (A) or purified red blood cells (B) incubated with different concentrations of C. ensiformis external dialysate solubilized in PBS. Hemolytic activity measurements were monitored spectrophotometrically using wavelengths of 567 nm. Distilled water (100% hemolysis) and PBS were used as positive and negative controls.
- FIG. 6 Effect of C. ensiformis external dialysate (DE) on M. incognita J2 in a greenhouse simulating field conditions.
- the bars symbolize the number of egg masses found in tomato roots after treatments.
- the experiment was conducted in quintuplicate with distilled water and commercial nematicide being used as negative and positive controls respectively.
- Figure 7 - Optical microscopy (A) J2 before the addition of DE-200x. (B) Intestinal region of J2 before the addition of DE - 400x. (C) J2 24 hours after addition of DE - 200x. (D) J2 intestinal region after the addition of DE - 400x.
- B - Evaluation of the effect of different commercial compounds and their compositions after the recovery test using distilled water.
- C + positive control (extract) 2: palmitic acid; 3: S-carboxymethylcysteine; 4: transconcitic acid; 5: glucose.
- the present invention is the result of research carried out to detect possible natural nematotoxic compounds present in plant extracts. Such compounds are an alternative in substitution for nematotoxic synthetic agents that cause damage to nature and man.
- the nematotoxic composition described in the invention was generated from unexpected results obtained when performing nematotoxicity bioassays using as active compounds some substances detected in the plant extract. The results of these bioassays proved that there was an unexpected synergistic nematotoxic effect from combinations of these active compounds.
- the present invention describes a synergistic nematotoxic composition
- a synergistic nematotoxic composition comprising as active compounds:
- the nematotoxic composition described in this invention may alternatively comprise formulation ingredients.
- Said composition with or without the presence of formulation ingredients may be in the form of solutions, emulsions, wettable powders, suspensions, powders, dusts, pastes, soluble powders, granules, emulsion suspension concentrates, natural and synthetic materials impregnated with active compounds and microencapsulations in polymeric substances.
- composition ingredients which may be used as formulation ingredients include, but are not limited to, liquid carriers / liquid solvents and / or solid carriers and / or surfactants and / or tackifiers and / or coloring agents. If the formulation ingredient used is water, auxiliary solvents such as organic solvents may also be employed.
- Suitable liquid carriers / solvents for use in the present invention include, but are not limited to, aromatic solvents, chlorinated aromatic solvents or chlorinated aliphatic hydrocarbons, aliphatic hydrocarbons, petroleum fractions, mineral oils, vegetable oils, alcohols and their ethers and esters, ketones, strongly polar solvents and water.
- the aromatic solvents used in the invention are selected from xylene, toluene or alkylnaphthalenes.
- chlorinated aromatic solvents or chlorinated aliphatic hydrocarbons are used in the composition of the present invention, they are preferably selected from chlorobenzene, chloroethylene or dichloromethane.
- Aliphatic hydrocarbons are preferably selected from cyclohexane or paraffins. In the alternative case of use of alcohols these are preferably selected from ethanol, propanol, butanol or glycol.
- ketones are used they are preferably selected from propanone, methyl ethyl ketone, methyl isobutyl ketone or cyclohexanone.
- Strongly polar solvents are preferably selected from dimethylformamide and dimethyl sulfoxide.
- Suitable solid carriers for use in the present invention include, but are not limited to, ammonium salts, ground natural minerals and ground synthetic minerals.
- the ground natural minerals are selected from kaolin, clays, talc, chalk, quartz, attapulgite, montmorillonite and diatomaceous earth.
- ground synthetic minerals they are preferably selected from silica, alumina and silicates.
- Suitable solid carriers are used when the nematotoxic composition of the present invention is presented in granule form. These suitable solid carriers are preferably selected from crushed natural rocks, synthetic granules and granules of organic material.
- surfactants may be employed as formulation ingredients for the composition of the present invention.
- the respective surfactants are selected from emulsifiers and / or dispersants and / or foams.
- Different emulsifiers / foaming agents may be used in the nematotoxic composition of the present invention including cationic, nonionic emulsifiers and anionic emulsifiers.
- nonionic and anionic emulsifiers these are preferably selected from polyoxyethylene fatty esters, polyoxyethylene fatty ethers, alkyl sulfonates, alkyl sulfates, aryl sulfonates, and protein hydrolysates.
- dispersants are used as surfactants in the present invention, they are preferably selected from methylcellulose and lignin sulfite scrap.
- formulation ingredients may also alternatively be employed in the composition of the present invention.
- Such ingredients include, but are not limited to, tackifiers such as carboxymethylcellulose and natural and synthetic polymers in the form of powders, granules or latex, such as gum arabic, polyvinyl alcohol and polyvinyl acetate.
- Other ingredients that may also be employed as formulation ingredients are vegetable and mineral oils, natural phospholipids such as cephalines and lecithins, and synthetic phospholipids.
- the nematotoxic composition of the present invention may also contain as a formulation ingredient dyes such as inorganic pigments such as iron oxide, titanium oxide and prussian blue and organic dyes such as alizarin dyes, azo dyes and metallic phthalocyanine dyes.
- Residual nutrients such as salts of iron, manganese, boron, copper, cobalt, molybdenum and zinc may alternatively be used as formulation ingredients in the composition of the present invention.
- the synergistic effect nematotoxic composition may further comprise other active compounds. These other active compounds, when used, are selected from insecticides, attractants, sterilizing agents, bactericides, acaricides, nematicides, fungicides, growth regulating substances, herbicides and safeners.
- the synergistic nematotoxic composition is an aqueous composition comprising the active compounds.
- the nematotoxic composition is an aqueous composition containing palmitic acid and transconcitic acid at concentrations of 0.25 g / l each.
- the nematotoxic composition is an aqueous composition containing palmitic acid and glucose at concentrations of 0.25 g / l each.
- the nematotoxic composition is an aqueous composition containing palmitic acid, transconcitic acid and glucose at concentrations of 0.17 g / l each.
- the nematotoxic composition is an aqueous composition containing palmitic acid, transconcitic acid and S-carboxymethylcysteine at concentrations of 0.17 g / l each.
- the nematotoxic composition is an aqueous composition containing palmitic acid, glucose and S-carboxymethylcysteine at concentrations of 0.17 g / l each.
- the nematotoxic composition is an aqueous composition containing palmitic acid, glucose, S-carboxymethylcysteine and transconcitic acid at concentrations of 0.125 g / l each.
- object of the present invention is the use of the synergistic effect nematotoxic composition described above for the control of nematodes in plants. Particularly, said use occurs by applying the composition of the invention to the plant and / or plant parts and / or soil.
- synergistic nematotoxic composition of the present invention to the plant, and / or parts of the plant and / or soil may be accomplished directly or by allowing the compounds to act upon their vicinity, environment or storage space by common treatment methods such as, eg by dipping, spraying, evaporating, misting, scattering, etc.
- common treatment methods such as, eg by dipping, spraying, evaporating, misting, scattering, etc.
- the use of the synergistic nematotoxic composition described herein is for the control of Meloigogyne incognita.
- aqueous extracts obtained from antagonistic plant seeds were tested in bioassays for the detection of effective compounds against second stage juveniles (J2). unknown.
- Canavalia ensiformis a plant of the Leguminosae family, originating from Central America, exhibited the highest nematicidal activity (85%) (Fig. 1).
- Fractionation of this material by dialysis resulted in the separation of molecules smaller than 3.5 kDa (external dialysate - DE) and larger than 3.5 kDa (internal dialysate - D1).
- the ND presented the most promising results compared to the Dl, such as: a) higher nematotoxic activity (Fig.
- compositions containing combinations of active compounds were tested by performing in vitro bioassays against M. incognita juveniles.
- the active compounds used in the experiments were obtained commercially.
- compositions tested were:
- compositions b), e), f), g), h), and i) unexpectedly showed synergistic nematotoxic effect with respect to nematode stoppage as compared to the sum of the results obtained. individually for each active compound. These comparisons are shown in Tables 2 to 7 below:
- Composition S- 0.17 (out of 99.32
- Nematotoxic compositions a), c), d) whose in vitro test results are also shown in Figures 10A and 10B and did not show significant synergistic nematotoxic effect.
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
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- Engineering & Computer Science (AREA)
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Abstract
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US14/654,017 US9750247B2 (en) | 2012-12-26 | 2013-12-26 | Nematotoxic composition of synergistic effect, use of a nematotoxic composition of synergistic effect |
CN201380073835.3A CN105163581B (zh) | 2012-12-26 | 2013-12-26 | 协同效应的线虫毒性组合物,协同效应线虫毒性组合物的用途 |
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BR102012033146-2A BR102012033146B1 (pt) | 2012-12-26 | 2012-12-26 | Composição nematotóxica de efeito sinérgico, uso de composição nematotóxica de efeito sinérgico |
BRBR1020120331462 | 2012-12-26 |
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WO2014100874A1 true WO2014100874A1 (pt) | 2014-07-03 |
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PCT/BR2013/000598 WO2014100874A1 (pt) | 2012-12-26 | 2013-12-26 | Composição nematotóxica de efeito sinérgico, uso de composição nematotóxica de efeito sinérgico |
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US (1) | US9750247B2 (pt) |
CN (1) | CN105163581B (pt) |
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WO (1) | WO2014100874A1 (pt) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5192546A (en) * | 1991-01-15 | 1993-03-09 | Mycogen Corporation | Synergistic pesticidal compositions |
WO2003075656A2 (en) * | 2002-03-04 | 2003-09-18 | Divergence, Inc. | Nematicidal fatty acid and fatty acid ester related compounds |
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CN1197955C (zh) * | 2003-05-21 | 2005-04-20 | 云南大学 | 一种提高真菌菌剂在土壤中生长和繁殖能力的方法 |
CN101167452B (zh) * | 2006-10-23 | 2012-10-31 | 黄永 | 促进植物生长和保护植物的双效脂肪酸制剂 |
CN101849539B (zh) * | 2010-06-11 | 2012-12-19 | 中国科学院动物研究所 | 棕榈酸乙酯在松材线虫病防治中的应用 |
CN102450282A (zh) * | 2010-10-20 | 2012-05-16 | 周端午 | 绿色、长效人兽共患疾病传播媒介系列防控药剂 |
EP2696677B1 (en) * | 2011-04-13 | 2021-08-11 | BioSafe Technologies, Inc. | Insecticide, insect repellant and anti-irritation composition |
CN102326542B (zh) * | 2011-10-24 | 2013-08-14 | 中国农业大学 | 棕榈酸作为南方根结线虫驱避剂的新用途 |
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2012
- 2012-12-26 BR BR102012033146-2A patent/BR102012033146B1/pt active IP Right Grant
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2013
- 2013-12-26 WO PCT/BR2013/000598 patent/WO2014100874A1/pt active Application Filing
- 2013-12-26 US US14/654,017 patent/US9750247B2/en active Active
- 2013-12-26 CN CN201380073835.3A patent/CN105163581B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US5192546A (en) * | 1991-01-15 | 1993-03-09 | Mycogen Corporation | Synergistic pesticidal compositions |
WO2003075656A2 (en) * | 2002-03-04 | 2003-09-18 | Divergence, Inc. | Nematicidal fatty acid and fatty acid ester related compounds |
Non-Patent Citations (6)
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CN105163581A (zh) | 2015-12-16 |
BR102012033146B1 (pt) | 2021-11-03 |
US20150313220A1 (en) | 2015-11-05 |
US9750247B2 (en) | 2017-09-05 |
CN105163581B (zh) | 2019-05-10 |
BR102012033146A2 (pt) | 2014-08-26 |
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