36 results about "Colletotrichum coccodes" patented technology

The invention relates to the field of agricultural biotechnology and plant protection, and particularly provides application of 2-heptanone to preparation of a preparation for preventing and treating plant diseases. The bactericidal composition has a strong bacteriostatic effect on litchi colletotrichum gloeosporioides, strawberry colletotrichum gloeosporioides, mango leaf blight, pawpaw colletotrichum gloeosporioides, wheat gibberellic disease, mango colletotrichum gloeosporioides, tomato fusarium wilt, banana fusarium wilt, banana colletotrichum gloeosporioides and corn root rot. The fumigant developed on the basis of 2-heptanone and used for preventing and treating phytopathogen is expected to be used for preventing and treating compound diseases caused by various pathogenic bacteria, or comprehensively preventing and controlling different crop diseases in a crop rotation system, and has important development value.

The invention discloses a protein capable of inducing a plant immune activation function and application of the protein in disease control, the gene sequence of the protein capable of inducing the plant immune activation function is shown as SEQ ID NO: 1, and the amino acid sequence of the protein is shown as SEQ ID NO: 2. According to the invention, a novel plant immune activator protein CgSsp16 secreted by colletotrichum gloeosporioides is identified, can be identified by plants, stimulates a plant immune response mechanism, triggers broad-spectrum resistance of host plants to various pathogens and improves disease resistance of various plants; the compound is expected to be developed into a novel biopesticide to be applied to green and sustainable production of agriculture.

The invention provides an alkaloid Waltherione S analogue as well as a synthesis method and application thereof, and relates to the technical field of alkaloid Waltherione compounds. According to the present invention, the structures of the Waltherione A and the Antidesmone are simplified, the pyridine and pyridone alkaloid Waltherione S analogue is designed and synthesized, and the synthesized compound has broad-spectrum bacterial killing activity on banana wilt pathogen, wheat scab pathogen, banana anthracnose pathogen, phytophthora capsici pathogen, botrytis cinerea, rhizoctonia solani, rice blast pathogen, mango stem-end rot pathogen and the like, the compound also has good nematicidal activity on root-knot nematodes, provides a favorable candidate agent for natural, safe and low-toxicity innovative pesticides, and is expected to be applied to agricultural production.

This invention relates to the field of crop genetics and breeding, and discloses the sweet sorghum disease resistance gene CPK4, its encoded protein, and its applications. The nucleotide sequence of the sweet sorghum disease resistance gene CPK4 is shown in SEQ ID NO.1, or has more than 90% homology with the sequence shown in SEQ ID NO.1 and encodes a protein with a nucleotide sequence that promotes the release of reactive oxygen species (ROS) in plants. By utilizing the CPK4 gene cloned from sweet sorghum, and through the specific interaction between its encoded protein and the NADPH oxidase SbRbohD protein, the ROS signaling pathway induced by pathogens is specifically activated, strengthening the defense response of sweet sorghum against anthracnose. This achieves a targeted enhancement of sweet sorghum's resistance to anthracnose. Furthermore, this gene is specifically induced by the molecular patterns of anthracnose and pathogens, and its disease resistance mechanism differs from existing NLR-mediated immune pathways, enriching the types of sweet sorghum disease resistance gene resources.

The application discloses a kind of compounds with carbonyl coupling rigid fragment and its preparation method and bactericidal purposes.The compound has the structure shown in general formula I.A rigid carbonyl skeleton is constructed by connecting amino-containing 1,2,4-triazole through amide bond, and maleic acid structure and bioactive biological amine fragment are introduced, which are integrated in the same molecular skeleton by carbonyl coupling method.The compound synthesis route is short, the reaction condition is mild, and the yield is high.The biological activity test results show that the compound has broad-spectrum and significant inhibitory activity on rice sheath blight fungus, tomato botrytis cinerea, rice blast fungus, grape anthracnose fungus, oilseed rape sclerotinia sclerotiorum and many other plant pathogenic fungi.The compound has multi-target synergistic mechanism and low risk of drug resistance.

The application discloses a pear anthracnose resistance gene MYC2- like and application, and belongs to the field of plant genetic engineering. MYC2‑like The nucleotide sequence of the gene is shown as SEQ ID NO:1, the protein sequence encoded by the gene is shown as SEQ ID NO:2, the gene is significantly up-regulated in response to MeJA and anthracnose fungus induction; the gene is located in the plant cell nucleus and has a conserved bHLH domain; a MYC2‑like MYC2‑like The constructed overexpression vector is used for transforming Solanum lycopersicum callus, so that the resistance of the callus to Colletotrichum gloeosporioides is increased, and the application provides an important gene resource for cultivating pear anthracnose resistance varieties.

The application provides a cycloalkyl-substituted triazolopyridine amide compound and a preparation method and application thereof, and belongs to the technical field of pesticides. The cycloalkyl-substituted triazolopyridine amide compound provided by the application introduces an unsubstituted or substituted cyclohexyl group or an unsubstituted or substituted cyclopentyl group on a triazole ring, has excellent inhibitory effect on pepper Phytophthora capsici Leonian, and has an EC 50 as low as 0.3 micromole / L; and the cycloalkyl-substituted triazolopyridine amide compound and derivatives thereof also have broad-spectrum inhibitory activity on rice Helminthosporium leaf spot fungus, wheat Helminthosporium leaf spot fungus, brassica sclerotinia, wheat Gibberella zeae, wheat take-all fungus, tomato botrytis cinerea, potato late blight fungus, pepper Phytophthora capsici Leonian, tomato early blight fungus, rice bacterial wilt fungus, potato dry rot fungus, cucumber anthracnose fungus and rice rice blast fungus, and have a good application prospect in the preparation of anti-plant pathogenic fungus drugs.

The application discloses a strain of Brevibacillus sp. HNCS-1, relates to the technical field of tea tree planting, and has a preservation number of CCTCC NO: M2022713. The strain is classified and named as Brevibacillus sp., and is preserved in the China Center for Type Culture Collection on May 25, 2022, and is located at Wuhan University, Wuhan, China, and has a postal code of 430072. The strain shows significant inhibitory effects on common pathogenic bacteria in tea gardens, such as tea anthracnose bacteria, tea leaf penicillium, tea fusarium, tea white star bacteria, tea round brown spot disease, and tea wheel spot disease, is environment-friendly, and is non-toxic and non-harmful.

The invention provides a heterocyclic ring-containing nicotinamide compound, a synthesis method and application of the heterocyclic ring-containing nicotinamide compound in prevention and treatment of plant fungal diseases, and relates to the technical field of pesticides. The heterocyclic ring-containing nicotinamide compound is synthesized by using easily available raw materials and a simple, practical and low-cost synthesis method. The compound has a synergistic effect on rhizoctonia solani, magnaporthe oryzae, mango anthracnose pathogen, rubber anthracnose pathogen, litchi anthracnose pathogen, banana anthracnose pathogen, coffee anthracnose pathogen, fusarium graminearum, wheat powdery mildew pathogen, valsa mali, botrytis cinerea, sclerotinia sclerotiorum, sigatoka musae, banana scab pathogen, apple ring spot pathogen, botrytis cinerea, botrytis cinerea, botrytis cinerea, botrytis cinerea and botrytis cinerea. The compound has an excellent inhibiting effect on plant fungal diseases caused by fungi such as tobacco alternaria alternata, cotton rhizoctonia solani, exserohilum turcicum and hevea brasiliensis, is novel in structure, and has huge potential for creation of novel pesticides.

This invention discloses a PEG-mediated genetic transformation method for *A. anthracnose* protoplasts. Through the preparation, transformation, and transformation of *A. anthracnose* protoplasts, and the screening of transformants, the hygromycin B resistance gene fragment was successfully transferred into the *A. anthracnose* genome, achieving successful genetic transformation of *A. anthracnose* protoplasts. More importantly, this invention establishes a new enzymatic digestion system and improves the culture mechanism in protoplast preparation. During the culture and screening of transformants, a more suitable resistance concentration is used, balancing the stringency of screening with the survival of transformants. This improves transformation efficiency, shortens the overall transformation process, and establishes a more efficient and convenient genetic transformation system for *A. anthracnose* protoplasts.

The invention belongs to the technical field of plant disease and insect pest prevention and control, and particularly relates to application of nerol in prevention and control of rubber anthracnose. It is found for the first time that nerol with low concentration (0.5 [mu] L / mL) can effectively inhibit colletotrichum gloeosporioides, phytophthora capsici and colletotrichum gloeosporioides, and especially the inhibition rate of nerol to colletotrichum gloeosporioides and colletotrichum gloeosporioides can reach 100%. Besides, nerol also has obvious inhibitory activity on rubber anthrax bacteria inoculated on in-vitro leaves, and can obviously reduce the area of scabs, and the inhibition rate reaches 98.4%. The results show that the nerol has a good prevention and treatment effect on the rubber anthracnose, the nerol belongs to a plant-sourced volatile compound, and few residues are left when the nerol is used for preventing and treating the rubber tree anthracnose, so that the nerol can be used as a potential green pesticide for preventing and treating the rubber anthracnose, and a new way is provided for preventing and treating the rubber anthracnose.

The invention discloses a fungus strain 41233 from Western sand and application of the fungus strain 41233, the taxonomic name of the fungus strain 41233 is Plectosphaerella sp., the preservation number of the fungus strain 41233 is GDMCC No.67505, and the preservation date of the fungus strain 41233 is December 19, 2025. The invention further discloses application of the fungus strain 41233 and a crude extract of the fungus strain 41233 in preparation of pathogenic bacterium inhibition products. The fungus strain 41233 sourced from Xiaxa has inhibitory activity on mango colletotrichum gloeosporioides and / or phytophthora capsici, and a crude extract of the fungus strain 41233 sourced from Xiaxa has inhibitory activity on various pathogenic bacteria such as colletotrichum gloeosporioides, phytophthora and fruit rot pathogens, and can be used for preparing biocontrol inoculants or further mining active natural products. And a new green prevention and control means is provided for plant disease prevention and control.

The invention provides an application of an enterobacter and bacillus mixture in treatment of strawberry anthracnose and void disease, by exploring reasons of strawberry void disease, endophyte enterobacter of the enterobacter can generate voids in strawberry stem bases to inhibit germination of anthrax spores, antibacterial effects of different enterobacter are compared, and the enterobacter and bacillus mixture can be applied to treatment of strawberry anthracnose and void disease. A method capable of more effectively inhibiting strawberry anthracnose and reducing cavities is researched, meanwhile, the situation that the cavities can be reduced and germination of colletotrichum gloeosporioides spores can be further inhibited while bacillus and enterobacter are combined for use is found, and the disease resistance of strawberries can be effectively improved. The enterobacter and bacillus mixture provided by the invention has good biocompatibility, is simple to use, is not easy to generate resistance, and has broad prospects in the fields of microorganisms and biological control.

The present application belongs to the technical field of microorganism and plant disease control, and discloses a bacillus velezensis YNDH2404 (Bacillus velezensis YNDH2404) Bacillus velezensis ), with a preservation number of CCTCC NO: M 20242825; and the application of the bacillus velezensis or its fermentation liquor is also disclosed. Experiments prove that the bacillus velezensis and fermentation products thereof isolated and identified by the present application have a significant inhibitory effect on coffee variegation caused by the short hair paint spot fungus, konjak variegation, coffee anthracnose caused by the anthracnose fungus, and coffee stem rot caused by the corchiferous fusarium. The biocontrol agent prepared by using the present application does not cause pollution to the ecological environment in the use process, is non-polluting, can reduce the use amount of other chemical pesticides, and reduces the prevention and control cost of coffee and konjak diseases, thereby providing protection for creating a coffee and konjak "green food brand", and has good popularization value.

The present application relates to a kind of Trichoderma fermentation liquor and preparation method thereof.The Trichoderma fermentation liquor is the fermentation liquor of Trichoderma sulphureum DH4-3, and the preservation number of Trichoderma sulphureum DH4-3 is CGMCC No.40704.The preparation method of the above-mentioned Trichoderma fermentation liquor includes the following steps: Trichoderma sulphureum DH4-3 is inoculated into culture medium and fermented.The Trichoderma fermentation liquor has inhibitory effect on 12 kinds of tested plant pathogenic fungi, such as poplar bark rot fungus, nursery wilt fungus, blueberry branch wilt fungus, apple rot fungus, cucumber sclerotium blight fungus, apple fruit rot fungus, melon vine cutting fungus, rice malignant worm fungus, red bean anthracnose fungus, tobacco brown spot fungus, tobacco target spot fungus and Pythium aphanidermatum, and has the advantages of good control effect, wide inhibitory spectrum and wide application range.

The present application relates to the technical field of microorganisms, and particularly relates to a bacillus velezensis F0b and application thereof.The bacillus velezensis F0b has been preserved in the Guangdong Microbial Culture Collection Center on April 26, 2024, and the preservation number is GDMCC No: 64566.The bacillus velezensis has a preventive and / or control effect on rice blast fungus, plasmodiophora brassicae, fusarium solani, fusarium oxysporum f.sp.cubense, rice leaf spot fungus, pythium sylvaticum, diaporthe phaseolorum, colletotrichum gloeosporioides and curvularia inaequalis, and can be used to prepare a broad-spectrum microbial source bactericide.The bacillus velezensis can produce amylase, carboxymethyl cellulase and protease in fermentation liquor, and the fermentation liquor of the bacillus velezensis has a preventive and / or control effect on vegetable pathogenic fungal diseases, such as cabbage sclerotinia disease or pepper anthracnose disease.

The invention discloses an in-vitro high-throughput inoculation method of tea tree colletotrichum gloeosporioides, and belongs to the technical field of tea tree biology. The method comprises the following steps: preparing a spore suspension with the concentration gradient (absorbance) OD600 of 0.4, 0.6, 0.8 and 1.0 from the Colletotrichum calamiae, inoculating the spore suspension to an in-vitro tea tree leaf in an injection manner, then placing the leaf in a high-throughput microenvironment culture device, and culturing for 4 days under the conditions of 28 DEG C, 75% relative humidity and 12h illumination / 12h darkness, thereby accurately evaluating the infection efficiency of the pathogenic bacteria. According to the method, a standardized inoculation process is combined with high-throughput microenvironment control, so that the problems of long period, non-uniform environment and low efficiency of a traditional method are solved, and the method has the outstanding advantages of short inoculation period, good experimental result consistency and capability of realizing batch high-throughput screening; the method can be directly used for tea tree colletotrichum gloeosporioides resistance identification, pathogen toxicity analysis and bactericide screening.

The invention discloses a strain of schizophyllum commune DKK and application thereof in prevention and treatment of rice and wheat diseases, the strain is preserved in China General Microbiological Culture Collection Center (CGMCC), the preservation date is May 19, 2025, the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC No.42010. The DKK strain is separated from persimmon fruits on which sporocarp grows. Researches show that the strain DKK inhibits the growth of rhizoctonia solani through antagonism and hyperparasitism; and the compound also has relatively good antagonistic activity on other pathogenic bacteria such as cochliobotrys miyabeanus, fusarium graminearum, wheat stem rot pathogen, potato late blight pathogen, tomato fusarium wilt pathogen, sclerotium fistulosum, strawberry botrytis cinerea, colletotrichum gloeosporioides and ligustrum japonicum leaf spot pathogen.

The invention discloses a method for predicting the infection success probability of pepper colletotrichum gloeosporioides and a method for preventing diseases, which are characterized in that a prediction model of the integral value of the contribution degree of the temperature and the infection success probability of the colletotrichum gloeosporioides under saturated humidity is established to predict a time node with the success probability of 50%, so that targeted pesticide spraying prevention and control are carried out. By adopting the prediction model provided by the invention, the pathogen infection success probability condition can be pre-judged, so that precise pesticide application is performed, the control effect can be improved, the pesticide spraying frequency can be reduced, the pesticide application cost can be reduced, and pesticide residues can be reduced.

The invention relates to the field of microorganisms, in particular to a novel streptomyces strain capable of producing volatile antibacterial substances and application of the novel streptomyces strain. The streptomyces strain AMJ-169 related to the invention is identified as a new streptomyces strain, and also has obvious inhibitory activity on strawberry anthracnose pathogen, cucumber fusarium wilt pathogen, botrytis cinerea and the like. Volatile organic compounds generated by the strain AMJ-169 have remarkable inhibitory activity on papaya colletotrichum gloeosporioides, mango colletotrichum gloeosporioides, banana colletotrichum gloeosporioides and The volatile organic compounds and the volatile compounds thereof also have inhibitory activity on a variety of plant pathogens. The levorotatory-alpha-pinene can effectively reduce the scab diameter of strawberry anthracnose on strawberry fruits, and has significant inhibitory activity on strawberry anthracnose. The new streptomyces strain and the volatile antibacterial substance generated by the streptomyces strain provide a new way for biological prevention and control of strawberry anthracnose, and have wide development space and development and application prospects.

The application relates to the field of agricultural biotechnology and plant protection, and specifically provides application of 2-heptanone in preparation of a preparation for preventing and treating plant diseases, the 2-heptanone has broad-spectrum bacteriostasis, and has strong bacteriostasis on colletotrichum gloeosporioides, colletotrichum acutatum, mycosphaerella musicola, colletotrichum caricae, fusarium graminearum, colletotrichum musae, fusarium solani, fusarium oxysporum, colletotrichum musae, and fusarium verticillioides. The fumigant for preventing and treating plant pathogens developed based on the 2-heptanone is expected to be used for preventing and treating complex diseases caused by various pathogens, or comprehensively preventing and controlling different crop diseases in a crop rotation system, and has important development value.

The invention discloses application of strigolactones analogues in resistance of tea trees to anthracnose pathogen infection, and relates to the technical field of agriculture. According to the application disclosed by the invention, the fac-GR24 is subjected to exogenous spraying in advance, so that not only can endogenous strigolactones signals of the tea trees be activated, but also the expression of a disease-resistant response gene PR1 can be activated, so that the oxidation damage caused by pathogenic bacterium invasion can be relieved, the disease resistance of the tea trees can be improved, and finally, the reproduction and expansion of Colletotrichum camelliae pathogenic bacteria in leaves of the tea trees can be inhibited. Experimental results show that the number of pathogenic bacteria on leaves subjected to exogenous spraying of the rac-GR24 is only 54.8% of that of a control group, the area of disease spots in the leaves is only 45.8% of that of the control group, and the obvious level is achieved. The method has great significance in the field of tea tree planting.

The invention discloses application of a GmERF36 gene in regulation and control of resistance of soybeans to anthracnose, and belongs to the technical field of gene engineering. According to the invention, a yeast library of each tissue of soybean under the stress of colletotrichum gloeosporioides is constructed, a promoter of a key gene GmHPL in soybean lipid metabolism is used as a bait to carry out yeast one-hybrid library screening, a batch of interaction genes are screened, and point-to-point verification and luciferase experiments verify the interaction relationship between the GmERF36 gene and the GmHPL gene promoter. The results of luciferase and fluorescence quantification show that the GmERF36 has a negative regulation effect on the GmHPL gene under the stress of colletotrichum gloeosporioides. Based on the regulation and control mechanism, the invention provides a technical scheme for enhancing the anthracnose resistance of the soybean by regulating and controlling a GmERF36-GmHPL molecular module, and particularly, the expression of the GmHPL gene is inhibited by improving the expression level of the GmERF36 gene, so that the resistance of the soybean to anthracnose stress is enhanced.

The present application provides a kind of detection of pecan anthracnose fungus (Cryphonectria parasitica Murrill) Colletotrichum fructicola ) probe set, rapid detection kit and its method and application, belong to biological detection technical field.Aiming at the current pecan anthracnose fungus identification difficult, excessive dependence on expensive equipment and technical personnel and other limitations, carry out pecan fruit anthracnose fungus LFD-RPA detection technology research, the present application can simply, efficiently detect pecan fruit anthracnose fungus, and there is no cross response with 22 representative strains of anthracnose fungus genus, strong specificity, minimum detection limit is 10 pg genome DNA, high sensitivity.The present application is suitable for the on-site real-time rapid detection of the disease by port quarantine, scientific research units, agricultural and forestry management and planting households and other departments.

The application discloses a benzopentaheterocyclic compound containing a hydrazine structure and an application thereof. The compound, stereoisomers of the compound, or a salt of the compound, or a solvate of the compound has good inhibiting effects on plant pathogenic bacteria and fungi. The compound has good inhibiting effects on fungi such as Colletotrichum gloeosporioides, Colletotrichum theae-sinensis, Mycosphaerella pachyrrhizi, Alternaria solani, Phytophthora capsici and the like, and pathogenic bacteria such as Xanthomonas oryzae, Xanthomonas citri and the like. Some of the compounds show excellent inhibiting activities on Colletotrichum theae-sinensis, with an EC 50 of 11.85 μg / mL. Some of the compounds show excellent inhibiting activities on Mycosphaerella pachyrrhizi, with an EC 50 of 2.88-16.41 μg / mL. Some of the compounds show excellent inhibiting activities on Xanthomonas citri, with a primary screening activity of 13.69-27.03 μg / mL, which is superior to a commercial drug, copper oxychloride. Some of the compounds show excellent inhibiting activities on Xanthomonas campestris, with a primary screening activity of 25.07-43.78 μg / mL, which is superior to the commercial drug, copper oxychloride. The application provides an important scientific basis for the research and development of new pesticides.

The invention belongs to the technical field of fermentation engineering and plant disease prevention and control, and particularly relates to pseudomonas veronii and application thereof in prevention and control of plant fungal diseases. The invention discloses Pseudomonas veronii JD003 with the preservation number of CGMCC (China General Microbiological Culture Collection Center) No.36825. The test shows that the Pseudomonas veronii JD003 can effectively inhibit the growth of tomato root rot, grape botrytis cinerea, colletotrichum capsici and alternaria capsici, and can effectively inhibit the growth of the tomato root rot, the grape botrytis cinerea, the colletotrichum capsici and the alternaria capsici. The compound provided by the invention has the advantages that the inhibition effects on the corresponding pathogenic microorganisms such as fusarium solani, botrytis cinerea, colletotrichum oxysporum and alternaria hexabarzicola respectively reach 64.7%, 72.9%, 74.1% and 73.8%, the compound has a good inhibition effect on pepper anthracnose, the field prevention and control effect reaches 83.5%, and a new direction is found for preventing and controlling plant diseases.

The invention discloses a cinnamic acid butenolide compound and a preparation method and application thereof.The cinnamic acid butenolide compound has the advantages of being environmentally friendly and low in toxicity, shows excellent performance in the field of insect killing and sterilization, can be widely applied to the scenes of agricultural pest control, forestry insect prevention, daily chemical antibiosis and the like, and has a wide application prospect. The compound disclosed by the invention can be used for remarkably inhibiting strawberry botrytis cinerea and colletotrichum gloeosporioides, the highest inhibition rate reaches 78%, in addition, the compound has a super-strong inhibition effect on alfalfa aphids, the inhibition rate of most compounds reaches 80% or above, the highest inhibition rate reaches 95%, and the compound has an important application value in the fields of agricultural chemistry and biological control. Besides, the preparation method is simple to operate and easy to realize through a commercialized cinnamic acid compound, does not need intermediate separation and purification, can directly and quickly synthesize a target product, and has the advantages of environmental friendliness, low toxicity, high yield, simple steps, mild conditions, wide substrate application range, simple post-treatment and the like.

The invention provides a streptomycete, which is ArbiCoenn streptomycete, is named as Streptomyces abikoensis LY4-2, is registered and preserved in Guangdong Microbial Culture Collection Center, and has a preservation number of GDMCC NO: 66503. The streptomyces, the fermentation liquor thereof and the like have broad-spectrum antibacterial activity, have a good antagonistic effect on banana colletotrichum gloeosporioides, strawberry colletotrichum gloeosporioides, cucumber fusarium wilt, wheat gibberellic disease, litchi colletotrichum gloeosporioides, mango colletotrichum gloeosporioides and mango leaf blight, and are potential biological preparations for preventing and treating diseases caused by colletotrichum gloeosporioides, fusarium wilt and the like; the method has a wide development space and a good development and application prospect.

This invention discloses a method for identifying anthracnose resistance in macadamia nuts, belonging to the field of macadamia nut resistance breeding technology. The method includes steps such as: isolation of the anthracnose pathogen, preparation of mycelial cakes, inoculation of healthy macadamia nut leaves by scrambling, disease index classification, and evaluation of resistance and susceptibility characteristics. This application involves culturing macadamia anthracnose to obtain purified anthracnose mycelia, then inoculating healthy leaves by scrambling; classifying the disease index by the diameter of leaf lesions, and evaluating the anthracnose resistance and susceptibility characteristics of macadamia nuts based on the disease index; providing a convenient method for identifying anthracnose-resistant macadamia nut varieties.

This invention provides a Streptomyces sp., registered and preserved at the Guangdong Provincial Center for Microbial Culture Collection, with accession number GDMCC NO:66719. The novel Streptomyces sp. D43-56 and its crude extract exhibit broad-spectrum antibacterial activity, showing good antagonistic effects against banana anthracnose fungi and collodion fungi. Furthermore, it can cause the mycelia and spores of banana anthracnose fungi to shrink and rupture, increasing the content of soluble solids, titratable acid, soluble sugars, and vitamin C in banana pulp, thus improving pulp quality. It can also increase the activity of oxidases and polyphenol oxidases in banana peel, while decreasing the activity of cellulase, pectin methyl esterase, and polygalacturonase, and reducing the reducing sugar content. Therefore, it is a potential biological agent for the prevention and control of anthracnose and the improvement of fruit pulp quality, with broad development potential and excellent application prospects.