156 results about "Microorganism resource" patented technology

The invention discloses application of bacillus subtilis BY-S1 in preparation of biological nano-selenium, and belongs to the technical field of microbiology and biological nano-selenium preparation. The preservation number of the bacillus subtilis BY-S1 is CCTCC (China Center for Type Culture Collection) NO: M 20232368. Research finds that the bacillus subtilis BY-S1 has the function of converting and synthesizing the biological nano-selenium by utilizing selenite, the strain BY-S1 and the biological nano-selenium converted and synthesized by the strain BY-S1 can remarkably promote plant growth, and when the bacillus subtilis BY-S1 and the biological nano-selenium are combined for use, a synergistic interaction effect is achieved. A new microbial resource is provided for biosynthesis of nano-selenium, a stable, safe and efficient nano-selenium preparation method is provided, and a theoretical basis is laid for research of a novel plant growth promoter.

The present invention belongs to the field of microbial technology and specifically relates to a salt-tolerant growth-promoting composite bacterial agent and its application. The active ingredients of the salt-tolerant growth-promoting composite bacterial agent are actinomycete S36, deposited with CGMCC No. 32928, Trichoderma M2, deposited with CGMCC No. 41651, and Bacillus velezensis Y10, deposited with CGMCC No. 32927. The present invention screened and obtained a composite bacterial agent obtained by mixing these three bacteria, which can improve the resistance of cotton and wheat to salt stress, providing a new microbial resource for improving the salt tolerance of cotton and wheat.

The invention relates to the technical field of microorganisms, and discloses a pseudomonas putida strain and a preparation method and application thereof.The strain is pseudomonas putida which is separated from soil and has the capacity of dissimilatory reduction of nitrate into ammonium and is classified into a new pseudomonas putida strain based on GTDB-TK. A dissimilatory NOreductive gene cluster, namely an nirBD gene cluster, exists on a genome of the gene, nirK / nirS genes are deleted, and NOs can be reduced into NH under the anaerobic culture condition. According to the application of the pseudomonas putida strain in improvement of soil nitrogen management, the pseudomonas putida strain can be mixed with organic fertilizer for use so as to enhance the effective utilization and conversion capacity of nitrogen in soil. By means of the pseudomonas putida strain, NON can be reduced into NHH under the anaerobic condition, the culture method is simple, the growth speed is high, variation is not prone to occurring, and a brand new microbial resource is provided for soil nitrogen cycle research.

The invention discloses a micro-plastic degrading bacterium P.ataveovii and application thereof, and belongs to the technical field of microorganisms. According to the invention, a strain of Priestia aryabhattai BK12 is separated and screened from plastic wastes, and the plastic degradation capability of the Priestia aryabhattai BK12 is deeply explored. A research result shows that the P.avenae BK12 can be used for efficiently degrading the PET (Polyethylene Terephthalate), and the P.avenae BK12 can be used for efficiently degrading the PET (Polyethylene Terephthalate), so that the P.avenae BK12 can be used for efficiently degrading the PET (Polyethylene Terephthalate). The invention provides a new microbial resource for the development of a plastic degradation agent, contributes to promoting the development of a biodegradable plastic technology and solving the problem of environmental pollution caused by PET, and assists in realizing the goal of green and sustainable development.

The invention discloses bacillus velezensis TG1 and application thereof. The bacillus velezensis TG1 is classified and named as bacillus velezensis, and the preservation number of the bacillus velezensis TG1 is GDMCC 66317; the preservation date is May 12, 2025, and the preservation unit is Guangdong Microbial Culture Collection Center. The bacillus velezensis TG1 provided by the invention has broad-spectrum antibacterial activity, high environmental adaptability and high safety, provides a green, sustainable, safe and efficient microbial resource for aquaculture, and has important ecological and economic values.

The invention discloses staphylococcus Z8 for antagonizing pathogenic bacteria of mulberry bacterial wilt and application of the staphylococcus Z8. The Z8 is identified as staphylococcus sp. And is preserved in Guangdong Microbial Culture Collection Center, the preservation number is GDMCC No.66232, and the preservation time is April 28, 2025. The invention further discloses a preparation method of the staphylococcus Z8 for antagonizing the pathogenic bacteria of mulberry bacterial wilt and application of the staphylococcus Z8 for antagonizing the pathogenic bacteria of mulberry bacterial wilt. The strain Z8 disclosed by the invention can destroy the formation of a biological membrane of the mulberry ralstonia solanacearum, so that the pathogenicity of the ralstonia solanacearum is reduced, and the strain Z8 can be used for preventing and treating the mulberry bacterial wilt. In addition, the strain Z8 does not affect the growth and development of the mulberry, the safety of the strain as a biocontrol strain is embodied, and the root activity and the total chlorophyll content can be improved. An efficient and environment-friendly microbial resource is provided for biological prevention and control of mulberry bacterial wilt, traditional chemical pesticides can be replaced, and environmental pollution is reduced.

The invention discloses a bacterial strain for broad-spectrum degradation of organic pollutants and application of the bacterial strain, the bacterial strain is classified and named as Acinetobacter venetianus, the bacterial strain number is GXGD-YZ-2508, the bacterial strain is preserved in Guangdong Microbial Culture Collection Center on August 27, 2025, the preservation number is GDMCC No: 66869, and the preservation address is the fifth floor, No. 59 building, No. 100 Courtyard, Xianlie Middle Road, Guangzhou City, Guangdong Province. The strain can grow under the condition that the salinity is 3wt%, can efficiently degrade 4-ethylphenol (4-EP), 2, 4-di-tert-butylphenol (2, 4-DTBP) and terephthalic acid (PTA), is suitable for biological treatment of aromatic pollutant-containing wastewater such as refining wastewater and PTA production wastewater, and has the advantages of high treatment efficiency, strong environmental adaptability and the like. The invention provides a novel microbial resource and an effective technical support for biological treatment of refractory aromatic pollutants, and has a wide application prospect.

The invention discloses a salt-tolerant strain for degrading 2, 4-di-tert-butylphenol, which is classified and named as Acinetobacter junii, has the strain number of GXGD-YZ-2506 (D1), is preserved in the Guangdong Microbial Culture Collection Center on July 4, 2025, has the preservation number of GDMCC No: 66641, and is preserved in the 5th floor, No. 59 building, No. 100 Courtyard, Xianlie Middle Road, Guangzhou City, Guangdong Province. The strain can grow under the condition that the salinity is 7wt%, can efficiently degrade 2, 4-di-tert-butylphenol, is suitable for treating high-salt organic wastewater containing 2, 4-di-tert-butylphenol in the industries of petrifaction, metallurgy, chemical engineering and the like, and has the advantages of being high in treatment efficiency, high in environmental adaptability and the like. The invention provides a novel microbial resource and an effective technical support for biological treatment of refractory phenol pollutants, and has a wide application prospect.

The invention relates to the technical field of environmental microbial resource development and sewage denitrification. The invention discloses an efficient denitrification strain Paracoccus sp.N21 with a flocculation characteristic, which is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.34710. The invention further discloses a preparation method of the efficient denitrification strain Paracoccus sp.N21. The strain obtained by the invention can completely remove ammonia nitrogen within 12 hours and thoroughly remove nitrate nitrogen within 48 hours, the removal rate reaches 100%, and ammonia nitrogen is preferentially degraded in a mixed nitrogen source. The method has the unique advantages that the flocculation rate in the nitrification process and the flocculation rate in the denitrification process exceed 93.9%, and the usage amount of a flocculating agent can be greatly reduced. When actual kitchen wastewater is treated, the ammonia nitrogen removal rate reaches 100%, and the removal rate reaches up to 7.51 mg / (L.h). The application of the strain can effectively reduce the volume of a reactor, reduce energy consumption and operation cost, provides a new solution for simplifying a biological denitrification process, is particularly suitable for treating high-ammonia-nitrogen kitchen wastewater, and has remarkable environmental and economic benefits.

The application discloses an Aeromonas media strain capable of degrading PAEs and an application thereof, and belongs to the technical field of microorganisms. The strain is Aeromonas media HJ02, and the preservation number is GDMCC NO: 66828. The strain has obvious advantages in environmental adaptability and PAEs pollutant degradation activity, can efficiently degrade various PAEs and intermediate metabolites, and maintains good growth kinetic characteristics in a 0-120 h culture period. When the initial concentration of diisooctyl phthalate (DEHP) is 300 mg / L, the strain can significantly reduce the residual content of DEHP in the culture system after culture, and the 24 h degradation rate reaches 91.73 %. The application has the advantages of simple operation, safety and economy, provides efficient and stable microbial resources for PAEs pollution remediation, and has important practical value.

The invention provides application of platanus sp. Su100 in promotion of synthesis of poplar melatonin and disease resistance, and relates to the technical field of microbial resource development and forest cultivation. The soft disc fungus Su100 can activate the activity of a key enzyme for synthesizing melatonin in a poplar body, and the content of the melatonin is remarkably increased. As a plant endogenous antioxidant and a multifunctional signal molecule, the melatonin plays a core role in plant stress resistance, growth regulation and control, quality improvement and ecological restoration. The floppy disc fungi have high colonization efficiency in plants, and can form a symbiotic system with the poplar by utilizing a floppy disc fungi inoculation technology to play a role for a long time. The application of the invention can significantly reduce the production cost of agriculture and forestry, is especially suitable for crop cultivation under the adverse conditions of drought, salt and alkali, diseases and the like, reduces the application of chemical fertilizers and pesticides, and lays a foundation for the construction of an efficient, green and sustainable forestry planting and cultivation system.

The present application belongs to the technical field of plant disease prevention and treatment, and particularly relates to a biocontrol bacterium for preventing and treating Guaiacum officinale anthracnose, a fermentation liquor, a biocontrol bacterium agent and application. Bacillus velezensis A biocontrol bacterium is isolated and screened from a microbial resource on a healthy Guaiacum officinale leaf, and is classified and named as Bacillus velezensis , which is preserved in the China General Microbiological Culture Collection Center on March 28, 2025, and has a preservation number of CGMCC No.34038; the biocontrol bacterium provided in the present application has good antagonistic effects on Colletotrichum gloeosporioides causing Guaiacum officinale anthracnose, on Stemphylium botryosum causing Guaiacum officinale leaf spot disease, on Botryosphaeria dothidea, on Alternaria alternata and on Pestalotiopsis versicolor capable of causing plant diseases. The biocontrol bacterium, the fermentation liquor and the biocontrol bacterium agent provided in the present application have potential application prospects in preventing and treating Guaiacum officinale anthracnose.

The invention discloses bacillus subtilis 12-10-2 and application thereof in synergistic preparation of fish oil and fish sauce, and belongs to the technical field of microbial fermentation. The preservation number of the bacillus subtilis (Bacillus subtilis) 12-10-2 is CGMCC (China General Microbiological Culture Collection Center) No.34966. The bacillus subtilis (Bacillus subtilis) 12-10-2 can be used for preparing the bacillus subtilis. The bacillus subtilis 12-10-2 can be used for efficiently hydrolyzing protein in a high-salt environment. The bacillus subtilis 12-10-2 is used for performing bacterium-adding fermentation on the snakehead processing leftovers, so that the fish oil and the fish sauce can be synergistically prepared, and the obtained product is high in yield and good in quality. A new microbial resource is provided for high-value utilization of snakehead processing leftovers, the problems of environmental pollution and resource waste caused by improper treatment can be solved, a new technical support is provided for establishment of a preparation process of high-quality fish oil and fish sauce, and the method has a wide market application prospect.

The invention discloses a deep-sea microorganism enrichment culture and mineral reaction integrated device, belongs to the field of microorganism equipment, and aims to solve the problems that deep-sea extreme microorganism resource development is limited and mineral reaction research and observation are difficult. A metabolite and an enzyme system of the strain have remarkable application value, but a traditional enrichment method is limited by extreme environments such as high pressure, low temperature and oligotrophic environments, and efficient development is difficult to realize; in addition, deep sea mineral reaction related research is blocked due to difficult direct observation and lack of in-situ observation equipment. The device comprises a microorganism enrichment culture device and a mineral reaction device, the microorganism enrichment culture device is used for suction filtration and enrichment of deep sea microorganism samples and can collect in-situ water samples; the mineral reaction device is used for researching the interaction between the deep sea extreme environment and a mineral sample.

The invention discloses a nicosulfuron pseudomonas (Pseudomonas nisulfuron HD1) with a capability of degrading multiple pollutants and an application of the nicosulfuron pseudomonas (Pseudomonas nisulfuron HD1, and belongs to the technical field of screening and application of functional microorganisms. The strain is derived from a chicken manure aerobic composting environment, the preservation number is GDMCC No: 67351, and nitro polycyclic aromatic hydrocarbons, polycyclic aromatic hydrocarbons and tetracycline antibiotics can be efficiently degraded at the same time. In a single pollutant with the concentration of 50 mg / L, the degradation rates of tetracycline and doxycycline exceed 97% in 8 h, the degradation rate of nitrofluoranthene reaches 99.01% in 48 h, and the degradation rate of phenanthrene reaches 66.17%. In nitrofluoranthene-phenanthrene composite pollutants, the 48-hour degradation rate is kept to be 78% or above. The strain is high in degradation efficiency and strong in environmental adaptability, provides a new microbial resource for bioremediation of a combined pollution site, and has a wide application prospect.

The application discloses a soil enterobacter capable of efficiently degrading polypropylene and application thereof. The strain is FJNUIM-S2, which is classified and named as soil enterobacter (Enterobacter agglomerans) Enterobacter soli ), is preserved in the China General Microbiological Culture Collection Center (CGMCC), and is preserved on October 17, 2024, with a preservation number of CGMCC No. 32241 and a preservation address of No. 3, Institute of Microbiology, Chinese Academy of Sciences, Xiliujiaobei, Chaoyang District, Beijing. The strain FJNUIM-S2 of the application can grow with polypropylene as the only carbon source, has good polypropylene degradation characteristics, provides a microbial resource for bioremediation of waste polypropylene in the environment, and has a wide application prospect.

This invention belongs to the field of biological control technology for plant diseases and pests, and provides a strain of Chaetomium globosum ( Chaetomium globosum EF-14 and its applications. This strain is deposited at the China General Microbiological Culture Collection Center (CGMCC), with accession number CGMCC No. 40618. The *Chaetomium globosum* EF-14 provided by this invention is an endophytic fungus of maize that can simultaneously inhibit *Fusarium graminearum* (…). Fusarium gramineae ) and Corn spores ( Bipolaris maydis It can effectively reduce corn stalk rot and corn leaf spot caused by fall armyworm ( ) and can also effectively reduce the incidence of fall armyworm ( ). Spodoptera frugiperda This invention provides a highly efficient and safe microbial resource for the green control of major corn diseases and pests, and broadens the application scope of Chaetomium globosum in agricultural biocontrol, achieving synergistic control of diseases and pests through "one fungus targeting multiple targets".

The invention provides a citrobacter freundii phage and an application thereof. The bacteriophage is a citrobacter freundii bacteriophage CFP2505001, and the preservation number is CCTCC (China Center For Type Culture Collection) NO: M20251306. The bacteriophage has excellent lysis activity, thermal stability and pH stability, can efficiently perform targeted lysis on multi-drug-resistant citrobacter freundii, significantly reduces the infection death rate of Japanese eels, and provides a new microbial resource and application approach for green prevention and control of citrobacter freundii diseases in aquaculture.

To provide a soil microbiota improving agent, a method for preparing a soil microbiota improving agent, and a method for improving soil microbiota, employing a Lysobacter bacterium unused in conventional microbial pesticides or microbial formulations as a novel microbial resource.MEANS FOR SOLVING THE PROBLEM: The foregoing problem is solved by a soil microbiota improving agent comprising a Lysobacter bacterium or a bacterial flora comprising a Lysobacter bacterium.SELECTED DRAWING: None

The application discloses a bacterial agent containing a salt-tolerant and alkali-tolerant strain TRM45540 and application thereof. The bacterial agent containing the salt-tolerant and alkali-tolerant strain TRM45540 is a fermentation liquor obtained by inoculating the strain TRM45540 in a fermentation medium and performing fermentation; a preparation method of the bacterial agent containing the salt-tolerant and alkali-tolerant strain TRM45540, wherein an ISP4 medium with a pH of 7-12 and a sodium chloride content of 0.2wt%-9wt% is used as the fermentation medium to perform fermentation on the strain TRM45540; and application of the bacterial agent containing the salt-tolerant and alkali-tolerant strain TRM45540, which is used for preventing soil compaction and improving soil fixation capacity of a pepper root system, or used for promoting growth of the pepper, or used for improving soil microbial richness. The bacterial agent helps to reduce use of chemical fertilizers and promote effective use of microbial resources.

The invention discloses a microalgae biological fertilizer for improving crop yield and stress resistance, and belongs to the technical field of microorganisms. The thermophilic monolith ZGL1 disclosed by the invention can stably grow in a saline-alkali environment, shows strong saline-alkali tolerance, can maintain normal metabolism and growth under high saline-alkali concentration, and provides an ideal microbial resource for agricultural application of saline-alkali soil. The thermophile ZGL1 disclosed by the invention can simultaneously act on saline-alkali soil improvement, antibiotic and pesticide pollution treatment and crop stress resistance and yield increase, has remarkable ecological benefits and economic benefits, and provides an efficient and environment-friendly solution for agricultural ecological restoration of saline-alkali soil.

The application discloses a method for improving information storage capacity of actinomycete, and belongs to the technical field of genetic engineering. The method comprises the steps of simulating acetylation mutation or simulating deacetylation mutation of DasR protein of the actinomycete; the simulating acetylation mutation is that lysine at the 78th position of the DasR protein is mutated into glutamine; and the simulating deacetylation mutation is that lysine at the 78th position of the DasR protein is mutated into arginine. Through acetylation mutation and deacetylation mutation of specific sites of the wide-range regulatory factor protein, the growth of the improved Actinomucor rubrum is determined, and the sporulation capacity of the strain is observed, so that it is confirmed that the optimization of the spore growth capacity and growth condition of the Actinomucor rubrum can be realized by using genetic engineering modification, new microbial resources are provided for preparation of an information storage carrier, and a research foundation is provided for promotion of a DNA data storage technology.

The invention discloses an endophytic fungus with functions of improving stress resistance and promoting growth of fraxinus mandshurica and application of the endophytic fungus, and belongs to the technical field of microorganisms, the endophytic fungus is named as Alternaria tenuissima SLR21 and preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC NO. 42057. The endophytic fungus has the advantages that the endophytic fungus is named as Alternaria tenuissima SLR21; according to the invention, fraxinus mandshurica is taken as a material, the endophytic fungus with the functions of improving stress resistance and promoting growth of fraxinus mandshurica is screened out, a new microbial resource is provided for digging a new strain with a biological energy function, and a new path is provided for solving the problem that fraxinus mandshurica forest establishment is difficult. Fermentation liquor of the endophytic fungi contains substances with high content of polyphenol, polysaccharide, flavone, salicylic acid, auxin and the like, has high drought resistance, salt and alkali resistance and the function of promoting seedling plant height increase, can be independently used as a seed soaking agent to be applied to promoting seed germination, and can also be used for carrying out root-irrigation or spraying treatment on nursery stocks through fermentation liquor of the endophytic fungi.

The invention discloses an endophyte for inhibiting corn spider mites. The invention provides bacillus velezensis which is bacillus velezensis 2025-BC248L1-1, and the preservation number of the bacillus velezensis 2025-BC248L1-1 is CGMCC (China General Microbiological Culture Collection Center) No. 33929. The invention also provides any one of the following applications of the bacillus velezensis or the culture thereof: A1) preventing plant diseases and insect pests; a2) treating plant diseases and insect pests; and A3) inhibiting phytopathogen. The endophyte with the activity of antagonizing the corn pathogenic bacteria is separated from corn leaves, the classification status of the endophyte is accurately determined by a molecular identification method, and the endophyte is identified as the bacillus. The endophyte is subjected to a biocontrol experiment of field endophyte liquid on spider mites, a new microbial resource is provided for biological control of corn diseases, and the endophyte is expected to be developed into a biological control preparation, so that the use of chemical pesticides can be reduced, and the environmental pollution is reduced.

The screening method comprises the following steps: S1, taking a high-temperature yeast sample, adding sterile normal saline, soaking and oscillating, taking supernate, inoculating the supernate into an acetic acid bacteria enrichment culture medium, and culturing at constant temperature to obtain enriched liquid; s2, carrying out gradient dilution on the enrichment liquid, taking a diluent with a proper concentration, coating a calcium plate isolation culture medium with the diluent, and selecting a single colony generating a transparent circle to carry out multi-generation streak purification; s3, inoculating the purified strain to an acidogenic qualitative culture medium, carrying out shake cultivation, centrifuging the fermentation broth, taking the supernatant, neutralizing the supernatant with a NaOH solution until the pH value is 7, adding a FeCl3 solution, and heating in a boiling water bath to generate a rufous flocculent precipitate which is an acidogenic bacterium; and S4, preparing bacterial suspension from the bacterial strains which are qualitatively identified as acid-producing bacteria, inoculating the bacterial suspension to a basic culture medium, and selecting the bacterial strain with the highest acid yield as a target bacterial strain. The strain with high acid yield and high stress tolerance obtained by screening provides a high-quality microbial resource for improving the quality of Maotai-flavor liquor.

The invention belongs to the technical field of microorganisms, and particularly discloses a bacillus aryabhattai strain and application thereof, the bacillus aryabhattai strain is identified as the bacillus aryabhattai strain through morphology, physiology, biochemistry and 16S rDNA (ribosomal deoxyribonucleic acid) molecules, is named as GR-6, is preserved in the China General Microbiological Culture Collection Center (CGMCC), and has the preservation number of CGMCC No.37494. The bacillus aryabhattai GR-6 disclosed by the invention has an in-vitro control effect of 67.58% and a living potting control effect of 38.67% on tomato gray leaf spot disease, and has good nitrogen fixation and potassium solubilization capabilities, and generated volatile substances have an obvious inhibition effect on various plant pathogenic fungi such as Stemphylium solani, Corynespora cassiicola, Botryis cinerea, fusarium oxysporum and Colletotrichum capsici; according to the present invention, the genome contains Surfactin, Macrolactin, Difficidin and other lipopeptide and polyketone antibiotic synthesis related genes, such that the biocontrol effect is significant, the growth promoting function and the broad-spectrum antibacterial ability are provided, the environmental protection is provided, the new microbial resource is provided for the green prevention and control of the tomato gray leaf spot disease, and the important application development value is provided.

The application discloses an endophytic fungus with functions of improving stress resistance and promoting growth of Fraxinus mandshurica and application thereof, and belongs to the technical field of microorganisms. Alternaria tenuissima The endophytic fungus is named as Alternaria tenuissima (SLR21), is preserved in the China General Microbiological Culture Collection Center, and has a preservation number of CGMCC NO.42057. The application screens out the endophytic fungus with functions of improving stress resistance and promoting growth of Fraxinus mandshurica by taking Fraxinus mandshurica as a material, provides new microbial resources for mining of new strains of biological energy functions, and provides a new path for solving the problem of difficult forestation of Fraxinus mandshurica. The fermentation liquor of the endophytic fungus contains high contents of polyphenols, polysaccharides, flavones, salicylic acid and auxin and the like, has high drought resistance, salt and alkali resistance and functions of promoting growth of seedling height, can be used as a seed soaking agent alone, and can be applied to promotion of seed germination, and the fermentation liquor of the endophytic fungus can also be used for root irrigation or spraying treatment of seedlings.

This invention discloses a strain of *Pseudomonas nicosulfuron-methyl* capable of degrading multiple pollutants. Pseudomonas nicosulfuronedens HD1 and its applications belong to the field of functional microbial screening and application technology. This strain, originating from an aerobic composting environment of chicken manure (accession number GDMCC No:67351), can simultaneously and efficiently degrade nitropolycyclic aromatic hydrocarbons (NPH), polycyclic aromatic hydrocarbons (PAHs), and tetracycline antibiotics. In single pollutants at a concentration of 50 mg / L, the degradation rates of tetracycline and doxycycline exceeded 97% after 8 hours; the degradation rate of nitrofluoranthene reached 99.01% after 48 hours; and the degradation rate of phenanthrene reached 66.17%. In nitrofluoranthene-phenanthrene composite pollutants, the degradation rate remained above 78% after 48 hours. This strain exhibits high degradation efficiency and strong environmental adaptability, providing a new microbial resource for the bioremediation of multi-contaminated sites and possessing broad application prospects.

The invention belongs to the technical field of agricultural microorganisms, and particularly relates to paenibacillus polymyxa as well as a fungicide and application thereof. The invention discloses paenibacillus polymyxa GC-13, the preservation number of the paenibacillus polymyxa GC-13 is CGMCC (China General Microbiological Culture Collection Center) No.32824, and the 16S rDNA (Ribosomal Deoxyribose Nucleic Acid) sequence of the paenibacillus polymyxa GC-13 is as shown in SEQ ID NO: 1. Through verification, the paenibacillus polymyxa GC-13 has a relatively strong antagonistic effect on uredospores of wheat stripe rust bacteria, and pathogenic bacteria of wheat scab and wheat basal stem rot, and the paenibacillus polymyxa GC-13 has a relatively strong antagonistic effect on the uredospores of the wheat stripe rust bacteria and the pathogenic bacteria of the wheat scab and the wheat basal stem rot. A pot experiment shows that the paenibacillus polymyxa GC-13 has a remarkable prevention and treatment effect on plant fungal diseases such as wheat stripe rust, wheat stem rot and wheat scab. The paenibacillus polymyxa GC-13 has the advantages that the paenibacillus polymyxa GC-13 can be used for preventing and treating the plant fungal diseases such as the wheat stripe rust, the wheat stem rot and the wheat scab; the invention provides a new microbial resource for preventing and treating fungal diseases of plants.

The application provides a strain of protozoan nephrospora NJAU-HN1 and an application thereof, and belongs to the technical field of agricultural microorganisms. The nephrospora NJAU-HN1 has a preservation number of CCTCC NO: C2025172. The nephrospora NJAU-HN1 can directly and effectively inhibit the survival of root-knot nematodes. Application of the nephrospora NJAU-HN1 or a culture thereof can significantly promote the growth of melon plants, increase the fresh weight, dry weight and root length of the plants. The nephrospora NJAU-HN1 provided by the application provides valuable microbial resources for the development of a new microbial preparation for green prevention and control of melon root-knot nematode disease and crop health promotion, and has a good application prospect.