一株贝莱斯芽孢杆菌WG4、生防制剂及其应用

By using Bacillus vesiculosus WG4 fermentation broth or metabolites as biocontrol agents, the environmental pollution and drug resistance problems of chemical fungicides have been solved, achieving green control of postharvest diseases of citrus, reducing the incidence of diseases and the diameter of lesions, and making it suitable for individual growers.

CN122405484APending Publication Date: 2026-07-17HUAZHONG AGRI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAZHONG AGRI UNIV
Filing Date
2026-04-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, chemical fungicides pose environmental pollution and drug resistance problems when controlling postharvest diseases of citrus fruits, while physical methods are costly, unsuitable for individual farmers, and lack green and sustainable disease control methods.

Method used

Bacillus berleis WG4 and its fermentation broth or metabolites were used as biocontrol agents to treat citrus fruits by soaking and spraying, thereby inhibiting a variety of plant pathogens, especially Penicillium fingernail, Penicillium italicum, Geotrichum citrinum, and Diplostomum cocovenenum, and controlling postharvest diseases of citrus.

Benefits of technology

It effectively reduces the incidence and diameter of lesions in citrus green mold, providing a green and effective disease control approach applicable to different citrus varieties, reducing post-harvest losses and minimizing environmental impact.

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Abstract

本发明属于微生物技术领域,具体涉及一株贝莱斯芽孢杆菌WG4、生防制剂及其应用。本发明所述贝莱斯芽孢杆菌(Bacillus velezensis)WG4保藏于中国典型培养物保藏中心,保藏编号为CCTCC NO:M 2026345。贝莱斯芽孢杆菌WG4分离自柑橘表面附生菌中,其对柑橘表面微环境适应能力更强,且对环境和人的影响较小;并且贝莱斯芽孢杆菌WG4可产生水溶性物质抑制多种植物病原菌,其发酵液和发酵上清液能够有效降低柑橘绿霉病的发病率和病斑直径,并在不同品种的柑橘上均有效果,为柑橘病害的防治提供了一条绿色、有效的途径。
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