CN112941141A - Fungus for inhibiting growth of rice blast fungus and blocking melanin secretion of rice blast fungus - Google Patents

Fungus for inhibiting growth of rice blast fungus and blocking melanin secretion of rice blast fungus Download PDF

Info

Publication number
CN112941141A
CN112941141A CN202110223901.7A CN202110223901A CN112941141A CN 112941141 A CN112941141 A CN 112941141A CN 202110223901 A CN202110223901 A CN 202110223901A CN 112941141 A CN112941141 A CN 112941141A
Authority
CN
China
Prior art keywords
rice blast
growth
bacteria
biocontrol
fungus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110223901.7A
Other languages
Chinese (zh)
Inventor
律凤霞
张彦丽
李艳萍
王美玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mudanjiang Normal University
Original Assignee
Mudanjiang Normal University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mudanjiang Normal University filed Critical Mudanjiang Normal University
Priority to CN202110223901.7A priority Critical patent/CN112941141A/en
Publication of CN112941141A publication Critical patent/CN112941141A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12QMEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/02Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving viable microorganisms
    • C12Q1/04Determining presence or kind of microorganism; Use of selective media for testing antibiotics or bacteriocides; Compositions containing a chemical indicator therefor
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/14Fungi; Culture media therefor
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12QMEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/02Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving viable microorganisms
    • C12Q1/18Testing for antimicrobial activity of a material
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2333/00Assays involving biological materials from specific organisms or of a specific nature
    • G01N2333/37Assays involving biological materials from specific organisms or of a specific nature from fungi

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Biotechnology (AREA)
  • Genetics & Genomics (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Immunology (AREA)
  • Mycology (AREA)
  • Botany (AREA)
  • Medicinal Chemistry (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Virology (AREA)
  • Biomedical Technology (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

The invention provides a fungus for inhibiting the growth of rice blast fungi and blocking melanin secretion of the rice blast fungi, and relates to the technical field of microorganisms. The analysis of the biocontrol bacterium effect on the growth inhibition of the rice blast fungi comprises the following specific experimental methods: analyzing the growth amount of biocontrol bacteria (SS 7) on rice blast bacteria and the melanin secretion inhibition effect by plate confronting culture; step two, analyzing the growth amount and melanin secretion inhibiting effect of the biocontrol strain (SS 7) metabolic liquid on rice blast fungi by PDA solid culture; and step three, analyzing the growth and melanin secretion inhibiting effect of the biocontrol strain (SS 7) metabolic liquid on the rice blast fungi by PDA liquid culture. The biological bacteria (SS 7) can obviously inhibit and even block the melanin secretion of the rice blast bacteria, the biocontrol bacteria has obvious growth inhibition effect on the rice blast bacteria and obvious inhibition effect on the melanin secretion in a PDA flat plate bacteriostasis test, and when the addition amount of the biocontrol bacteria metabolic fluid in a PDA culture medium reaches 75 percent, the biocontrol bacteria metabolic fluid not only can inhibit the growth of the rice blast bacteria, but also can completely block the melanin secretion of the rice blast bacteria.

Description

Fungus for inhibiting growth of rice blast fungus and blocking melanin secretion of rice blast fungus
Technical Field
The invention relates to the technical field of microorganisms, in particular to a fungus for inhibiting the growth of rice blast fungi and blocking the melanin secretion of the rice blast fungi.
Background
Fungal diseases of plants are one of three diseases (bacterial diseases, fungal diseases and viral diseases) in plant cultivation, and all cultivation areas in the world occur, so that the occurrence of the fungal diseases can cause yield reduction to different degrees, and even the fungal diseases are completely harvested in severe cases. The main conditions of the cycle and serious occurrence of plant fungal diseases are primary infection and secondary infection, and the primary infection is based on the safe overwintering quantity of pathogenic bacteria; the re-infection is based on the condition of suitable and rapid propagation after the initial infection. In plant pathogenic fungi, many fungi secrete melanin in the growth process, such as Pyricularia oryzae and Alternaria alternata of tomato early blight. Whether initially infected or re-infected with these melanin-secreting pathogens, melanin production is a prerequisite for the pathogenic fungi to complete the plant infestation. Therefore, the inhibition of melanin secretion is a direct means for blocking pathogenic fungi from infecting plants, and is the simplest and most effective method for preventing plant diseases. So far, no report about biocontrol bacteria for inhibiting the secretion of melanin of plant pathogenic fungi exists.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a fungus for inhibiting the growth of rice blast fungi and blocking the melanin secretion of the rice blast fungi, so that the goal of inhibiting the melanin secretion of most pathogenic fungi is expanded, and the problem of biocontrol bacteria which do not inhibit the melanin secretion of plant pathogenic fungi is solved.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a fungus for inhibiting the growth of rice blast fungus and blocking the melanin secretion of the rice blast fungus comprises the following specific experimental methods:
analyzing the growth amount of biocontrol bacteria (SS 7) on rice blast bacteria and the melanin secretion inhibition effect by plate confronting culture;
step two, analyzing the growth amount and melanin secretion inhibiting effect of the biocontrol strain (SS 7) metabolic liquid on rice blast fungi by PDA solid culture;
and step three, analyzing the inhibition effect of the biocontrol bacteria (SS 7) on the growth of the rice blast fungi and the melanin secretion by PDA liquid culture.
Preferably, the first step of analyzing the growth amount of rice blast fungi and the melanin secretion inhibiting effect of biocontrol bacteria (SS 7) by plate confrontation culture is embodied as follows:
select the culture dish that the specification is unanimous, divide the three-section equally with marker pen equidistance with culture dish bottom diameter, at superclean bench, interior aseptic hole puncher is respectively in living control fungus (SS 7) and the magnaporthe grisea fungus of activated edge of colony of fungus and get the hypha piece of equidimension, receive living control fungus (SS 7) and magnaporthe grisea fungus piece simultaneously the mark point department on the diameter of flat board, make 2 fungus pieces 3cm apart from each other, the sealing film seals and inverts 25 ℃ constant temperature cultivation in the constant temperature incubator, observe, every group repeats 3 dishes, treat that two bacterial colony hypha contact back, observe two bacterial colony morphologies and two interactions between the bacterial colony hypha, calculate the size that two growth volume averages are the bacterial colony diameter, calculate the bacteriostasis rate: p ═ D1-D2)/D1 × 100%;
in the formula: d1 represents control pure growth (cm); d2 represents the treatment pure growth (cm);
and simultaneously observing the change of melanin secretion of the rice blast fungi, and analyzing the difference by referring to a control.
Preferably, the second step of analyzing the growth amount and the melanin secretion inhibiting effect of the biocontrol bacteria (SS 7) metabolic liquid on the magnaporthe grisea PDA solid culture specifically comprises the following steps:
transferring the activated biocontrol bacteria (SS 7) into a liquid PDA culture medium, carrying out constant-temperature oscillation culture until the pH value is constant (about 20D), filtering the biocontrol bacteria (SS 7) metabolic liquid through four layers of gauze, respectively adding the biocontrol bacteria (SS 7) metabolic liquid into a conventional PDA solid culture medium according to the concentration gradients of 0%, 25%, 50%, 75% and 100%, taking equal-size mycelium blocks at the edge of the same colony of the activated rice blast strain in an ultraclean workbench by using a puncher, respectively inoculating the mycelium blocks into solid culture dishes with different treatments, marking after sealing films are sealed, repeating the concentration gradients for 3 times, measuring the colony diameter of the rice blast bacteria every 3D after the rice blast bacteria obviously germinate (7D), and calculating the bacteriostasis rate by P ═ D1-D2)/D1 multiplied by 100%;
and simultaneously observing the change of melanin secretion of the rice blast fungi, and analyzing the difference by referring to a control.
Preferably, the third step of analyzing the growth and melanin secretion inhibiting effect of the biocontrol bacteria (SS 7) on rice blast fungi by PDA liquid culture is as follows:
adding biocontrol bacteria (SS 7) metabolic liquid into a conventional PDA liquid culture medium according to the concentration gradients of 0%, 25%, 50%, 75% and 100%, taking mycelium blocks with the same size at the edge of the same colony of an activated rice blast strain in a super clean workbench by using a puncher, respectively inoculating the mycelium blocks into liquid culture media with different treatments, inoculating 4 mycelium blocks into each bottle, sealing a sealing film to seal a mark, repeating the concentration gradients for 3 times, observing every 3d after the rice blast bacteria obviously germinate (7d), collecting mycelium in the culture solution by using a filter paper filtration method when culturing for 20d, placing in a drying box at 80 ℃ for drying, analyzing the mass of the mycelium weighed by a balance, and calculating the growth amount;
and simultaneously observing the change of melanin secretion of the rice blast fungi, and analyzing the difference by referring to a control.
(III) advantageous effects
The invention provides a fungus for inhibiting the growth of rice blast fungi and blocking the melanin secretion of the rice blast fungi. The method has the following beneficial effects:
the biological bacteria (SS 7) can obviously inhibit and even block the secretion of melanin of pathogenic fungi, the biocontrol bacteria has obvious growth inhibition effect on rice blast fungi and obvious inhibition effect on the secretion of the melanin in a PDA flat plate bacteriostasis test, and when the addition amount of the biocontrol bacteria metabolic solution in a PDA culture medium reaches 75 percent, the biocontrol bacteria metabolic solution not only can inhibit the growth of the rice blast fungi, but also can completely block the secretion of the melanin.
Drawings
FIG. 1 is a graph showing the results of experiments on the effect of biocontrol bacteria (SS 7) on the growth of Pyricularia oryzae and melanin secretion during plate-confrontation culture according to the present invention;
FIG. 2 is a graph showing the experimental results of the effect of the metabolite of biocontrol bacteria (SS 7) on the growth of Pyricularia oryzae and the secretion of melanin during the solid culture of PDA in accordance with the present invention;
FIG. 3 is a graph showing the results of experiments on the effect of biocontrol bacteria (SS 7) on the growth of Pyricularia oryzae and melanin secretion in the liquid culture of PDA according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in the figure, the embodiment of the invention provides a fungus for inhibiting the growth of rice blast fungi and blocking the melanin secretion of the rice blast fungi, which comprises the following specific experimental methods:
analyzing the growth amount of biocontrol bacteria (SS 7) on rice blast bacteria and the melanin secretion inhibition effect by plate confronting culture;
step two, analyzing the growth amount and melanin secretion inhibiting effect of the biocontrol strain (SS 7) metabolic liquid on rice blast fungi by PDA solid culture;
and step three, analyzing the growth and melanin secretion inhibiting effect of the biocontrol strain (SS 7) metabolic liquid on the rice blast fungi by PDA liquid culture.
The first step is to analyze the growth amount of the biocontrol strain (SS 7) on the rice blast bacteria and the melanin secretion inhibiting effect through plate confronting culture, which is embodied as follows:
select the culture dish that the specification is unanimous, divide the three-section equally with marker pen equidistance with culture dish bottom diameter, at superclean bench, interior aseptic hole puncher is respectively in living control fungus (SS 7) and the magnaporthe grisea fungus of activated edge of colony of fungus and get the hypha piece of equidimension, receive living control fungus (SS 7) and magnaporthe grisea fungus piece simultaneously the mark point department on the diameter of flat board, make 2 fungus pieces 3cm apart from each other, the sealing film seals and inverts 25 ℃ constant temperature cultivation in the constant temperature incubator, observe, every group repeats 3 dishes, treat that two bacterial colony hypha contact back, observe two bacterial colony morphologies and two interactions between the bacterial colony hypha, calculate the size that two growth volume averages are the bacterial colony diameter, calculate the bacteriostasis rate: p ═ D1-D2)/D1 × 100%;
in the formula: d1 represents control pure growth (cm); d2 represents the treatment pure growth (cm);
and simultaneously observing the change of melanin secretion of the rice blast fungi, and analyzing the difference by referring to a control.
Figure BDA0002956073900000041
Figure BDA0002956073900000051
After the antagonistic line is generated, the hyphae on the side of the antagonistic line in the culture dish can cover the surface of the rice blast fungus to continue growing along the antagonistic line with the lapse of the culture time, and the hyphae of the biocontrol bacterium (SS 7) has obvious inhibition effect on the growth of the rice blast fungus and the melanin secretion.
And step two, the growth amount and the melanin secretion inhibiting effect of the biocontrol strain (SS 7) metabolic liquid on the magnaporthe grisea PDA solid culture are specifically embodied as follows:
transferring the activated biocontrol bacteria (SS 7) into a liquid PDA culture medium, carrying out constant-temperature oscillation culture until the pH value is constant (about 20D), filtering the biocontrol bacteria (SS 7) metabolic liquid through four layers of gauze, respectively adding the biocontrol bacteria (SS 7) metabolic liquid into a conventional PDA solid culture medium according to the concentration gradients of 0%, 25%, 50%, 75% and 100%, taking equal-size mycelium blocks at the edge of the same colony of the activated rice blast strain in an ultraclean workbench by using a puncher, respectively inoculating the mycelium blocks into solid culture dishes with different treatments, marking after sealing films are sealed, repeating the concentration gradients for 3 times, measuring the colony diameter of the rice blast bacteria every 3D after the rice blast bacteria obviously germinate (7D), and calculating the bacteriostasis rate by P ═ D1-D2)/D1 multiplied by 100%;
and simultaneously observing the change of melanin secretion of the rice blast fungi, and analyzing the difference by referring to a control.
Figure BDA0002956073900000052
Note: different capital letters indicate heteropolar significance at P <0.01 levels, lower case letters indicate heteropolar significance at P <0.05 levels
Compared with a control, the growth of the rice blast bacteria in the culture medium of the metabolic solution with different concentrations is obviously different along with the extension of the culture time, the larger the concentration is, the smaller the colony diameter of the rice blast bacteria is, the obvious bacteriostatic effect is achieved, the difference is extremely obvious, and the bacterial colonies of the rice blast bacteria in the culture dish with the concentrations of 50% and 75% have the phenomenon that hypha melanin is obviously degraded in a concentric circle manner; the inhibition effect of the metabolic liquid on the rice blast fungi is continuously constant in the later period of the test, and the inhibition effect is very obvious different all the time.
Step three, analyzing the growth and melanin secretion inhibiting effect of the biocontrol strain (SS 7) on the rice blast fungus through PDA liquid culture, and concretely embodying the following steps:
adding biocontrol bacteria (SS 7) metabolic liquid into a conventional PDA liquid culture medium according to the concentration gradients of 0%, 25%, 50%, 75% and 100%, taking mycelium blocks with the same size at the edge of the same colony of an activated rice blast strain in a super clean workbench by using a puncher, respectively inoculating the mycelium blocks into liquid culture media with different treatments, inoculating 4 mycelium blocks into each bottle, sealing a sealing film to seal a mark, repeating the concentration gradients for 3 times, observing at intervals of 3d after the rice blast bacteria obviously germinate (7d), collecting the mycelium in the culture solution by using a filter paper filtration method when culturing for 20d, placing the mycelium in a drying box at 80 ℃ for drying, measuring the mass of the mycelium by using an electronic analytical balance, and comparing data; and simultaneously observing the change of melanin secretion of the rice blast fungi, and analyzing the difference by referring to a control.
Figure BDA0002956073900000061
And (3) measuring the dry weight of the hyphae after the liquid culture of the rice blast fungi for 20 days, wherein the biocontrol strain (SS 7) metabolic liquid with different proportions has obvious inhibition effect on the growth of the rice blast fungi hyphae, the inhibition effect is concentration-related, the higher the concentration is, the more obvious the antibacterial effect is, and the antibacterial difference is extremely obvious. The melanin secretion of Magnaporthe grisea is completely blocked when the addition amount of biocontrol bacteria (SS 7) metabolic liquid reaches 75%.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The fungus for inhibiting the growth of rice blast fungi and blocking the melanin secretion of the rice blast fungi is characterized by comprising the following specific experimental methods:
analyzing the growth amount of biocontrol bacteria (SS 7) on rice blast bacteria and the melanin secretion inhibition effect by plate confronting culture;
step two, analyzing the growth amount and melanin secretion inhibiting effect of the biocontrol strain (SS 7) metabolic liquid on rice blast fungi through PDA solid culture;
and step three, analyzing the growth and melanin secretion inhibiting effect of the biocontrol strain (SS 7) metabolic liquid on the rice blast fungi by PDA liquid culture.
2. The fungus for inhibiting the growth of Pyricularia oryzae and blocking the melanin secretion according to claim 1, wherein the first step of analyzing the growth amount of Pyricularia oryzae and the melanin secretion-inhibiting effect of biocontrol bacteria (SS 7) by plate confrontation culture comprises:
the culture dish of 9cm internal diameter is got, divide the three-section equally with marker pen with culture dish bottom diameter, take equidimension hypha piece with aseptic hole puncher respectively at activated biocontrol fungus (SS7 number) and the magnaporthe grisea fungus colony edge in superclean bench, connect biocontrol fungus (SS7 number) and magnaporthe grisea fungus piece simultaneously to dull and stereotyped mark point department on the diameter, make 2 fungus pieces 3cm apart from each other, the sealing membrane seals and inverts 25 ℃ constant temperature cultivation in the constant temperature incubator, the repeated 3 dishes of every group, treat that two colony hypha contact back, observe the interact between two colony forms and two colony, calculate the size that two growth volume averages are the colony hypha diameter, calculate the antibacterial rate: p ═ D1-D2)/D1 × 100%;
in the formula: d1 represents control pure growth (cm); d2 represents the treatment pure growth (cm);
and simultaneously observing the change of melanin secretion of the rice blast fungi, and analyzing the difference by referring to a control.
3. The fungus for inhibiting the growth of Pyricularia oryzae and blocking the melanin secretion according to claim 1, wherein the second step of analyzing the yield of Pyricularia oryzae (SS 7) and the effect of the metabolite of biocontrol fungus on the growth of Pyricularia oryzae and the melanin secretion inhibition by PDA solid culture is embodied as follows:
transferring the activated biocontrol bacteria (SS 7) into a liquid PDA culture medium, carrying out constant-temperature oscillation culture until the pH value is constant (about 20D), filtering the biocontrol bacteria (SS 7) metabolic liquid through four layers of gauze, respectively adding the biocontrol bacteria (SS 7) metabolic liquid into a conventional PDA solid culture medium according to the concentration gradients of 0%, 25%, 50%, 75% and 100%, taking equal-size mycelium blocks at the edge of the same colony of the activated rice blast strain in an ultraclean workbench by using a puncher, respectively inoculating the mycelium blocks into solid culture dishes with different treatments, marking after sealing films are sealed, repeating the concentration gradients for 3 times, measuring the colony diameter of the rice blast bacteria every 3D after the rice blast bacteria obviously germinate (7D), and calculating the bacteriostasis rate by P ═ D1-D2)/D1 multiplied by 100%;
and simultaneously observing the change of melanin secretion of the rice blast fungi, and analyzing the difference by referring to a control.
4. The fungus for inhibiting the growth of Pyricularia oryzae and blocking the melanin secretion according to claim 1, wherein the inhibitory effect of biocontrol bacteria (SS 7) on the growth of Pyricularia oryzae and the melanin secretion is determined by the following steps:
adding biocontrol bacteria (SS 7) metabolic liquid into a conventional PDA liquid culture medium according to the concentration gradients of 0%, 25%, 50%, 75% and 100%, taking mycelium blocks with the same size at the edge of the same colony of an activated rice blast strain in a super clean workbench by using a puncher, respectively inoculating the mycelium blocks into liquid culture media with different treatments, inoculating 4 mycelium blocks into each bottle, sealing a sealing film to seal a mark, repeating the concentration gradients for 3 times, observing at intervals of 3d after the rice blast bacteria obviously germinate (7d), collecting the mycelium in the culture solution by using a filter paper filtration method when culturing for 20d, placing the mycelium in a drying box at 80 ℃ for drying, measuring the mass of the mycelium by using an electronic analytical balance, and comparing data;
and simultaneously observing the change of melanin secretion of the rice blast fungi, and analyzing the difference by referring to a control.
CN202110223901.7A 2021-03-01 2021-03-01 Fungus for inhibiting growth of rice blast fungus and blocking melanin secretion of rice blast fungus Pending CN112941141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110223901.7A CN112941141A (en) 2021-03-01 2021-03-01 Fungus for inhibiting growth of rice blast fungus and blocking melanin secretion of rice blast fungus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110223901.7A CN112941141A (en) 2021-03-01 2021-03-01 Fungus for inhibiting growth of rice blast fungus and blocking melanin secretion of rice blast fungus

Publications (1)

Publication Number Publication Date
CN112941141A true CN112941141A (en) 2021-06-11

Family

ID=76246809

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110223901.7A Pending CN112941141A (en) 2021-03-01 2021-03-01 Fungus for inhibiting growth of rice blast fungus and blocking melanin secretion of rice blast fungus

Country Status (1)

Country Link
CN (1) CN112941141A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2760153A1 (en) * 2009-04-27 2010-11-11 Alex Chenchik Reagents and methods for producing bioactive secreted peptides
CN110249379A (en) * 2017-01-24 2019-09-17 隆萨有限公司 The method and system of industrial maintenance is carried out using the display of virtual or augmented reality
US20210251237A1 (en) * 2018-07-25 2021-08-19 Regents Of The University Of Minnesota Platform for developing soil-borne plant pathogen inhibiting microbial consortia

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2760153A1 (en) * 2009-04-27 2010-11-11 Alex Chenchik Reagents and methods for producing bioactive secreted peptides
CN110249379A (en) * 2017-01-24 2019-09-17 隆萨有限公司 The method and system of industrial maintenance is carried out using the display of virtual or augmented reality
US20210251237A1 (en) * 2018-07-25 2021-08-19 Regents Of The University Of Minnesota Platform for developing soil-borne plant pathogen inhibiting microbial consortia

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
SAIMA KHALID等: "Chemical signals driving bacterial–fungal interactions", 《ENVIRONMENTAL MICROBIOLOGY》 *
王瑶等: "拮抗酵母控制果蔬采后真菌病害研究进展", 《食品工业科技》 *

Similar Documents

Publication Publication Date Title
Prasad et al. Identification and characterization of Endophytic bacteria from fruits like Avacado and Black grapes
CN114456986B (en) Broad-spectrum antibacterial bacillus aryabhattai and application thereof
Nesbitt et al. Effect of organic matter on the survival of Phytophthora cinnamomi Rands in soil
CN101805717B (en) Method for efficiently and directionally screening biocontrol bacteria in soil-borne diseases of crops
CN110982765B (en) Endophytic bacillus amyloliquefaciens JL-B05 and application thereof
Asha et al. Selection of effective bio-antagonistic bacteria for biological control of tomato wilt caused by Fusarium oxysporum f. sp. lycopersici
CN115261233B (en) Biocontrol fungus for stem rot of saffron crocus and application thereof
CN110317747A (en) A kind of bacillus amyloliquefaciens JT68 and its application in prevention and treatment tea anthracnose
CN105062917A (en) Chloroacetamide herbicide degrading strain, bacterium produced thereby and application thereof
CN116179367B (en) Strawberry disease biocontrol bacterium JSNL-B118 and application thereof
Xu et al. Chemotactic response study of Cylindrocarpon destructans towards ginseng root exudates
Tsegaye et al. Characterization and identification of Tef (Eragrostis tef) seed endophytic bacterial species and evaluate their effect on plant growth promotion
CN112501242A (en) Method for screening biocontrol bacteria for tobacco bacterial wilt by using living biological test system
CN112941141A (en) Fungus for inhibiting growth of rice blast fungus and blocking melanin secretion of rice blast fungus
CN107012110A (en) A kind of entomopathogenic nematode symbiotic bacteria and its application with inhibition of potato late blight
CN111778174A (en) Bacillus subtilis with inhibiting effect on citrus sand skin disease and screening method thereof
CN115029249B (en) Fungus for antagonizing potato scab and application thereof
CN105936879A (en) Bacillus subtilis K13, and culture method and application thereof
CN113652382B (en) Bacillus bailii for preventing and treating peanut southern blight, microbial agent, microbial fertilizer and application of microbial fertilizer
CN112961784B (en) Endophytic Alternaria alternata Aa-Lcht and application thereof in preventing and treating apple tree rot
CN107630064A (en) A kind of phytophthora infestans antagonistic effect culture medium and its preparation method and application
CN114934001A (en) Endogenous antagonistic bacterium of tobacco seeds and application thereof
Hu et al. Effects of root exudates from crop plants on the growth of Fusarium oxysporum f. sp. niveum.
CN113832049A (en) Coptis southern blight biocontrol bacterium pseudomonas fluorescens HT1 and application thereof
CN112760230A (en) Gliocladium roseum, gliocladium roseum bacterial liquid and application thereof in preventing and treating sunflower sclerotium disease

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210611