Bacillus safensis and application thereof in preventing and treating plant diseases

By screening out Bacillus sabolicii BSA15 with broad-spectrum antibacterial activity, the problems of narrow antibacterial range and unstable efficacy of existing strains have been solved, achieving efficient control of a variety of plant diseases. It is suitable for different crops and agricultural ecosystems and meets the requirements of green agriculture.

CN121674307BActive Publication Date: 2026-05-29SANYA INSTITUTE OF NANJING AGRICULTURAL UNIVERSITY +1
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Patent Information

Application Number
CN202610171685.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-02-06
Publication Date
2026-05-29
Estimated Expiration
2046-02-06

AI Technical Summary

Technical Problem

Existing Bacillus safranin strains have a narrow inhibitory range, unstable efficacy, and limited environmental adaptability, making them difficult to widely apply to the prevention and control of plant diseases in different crops and agricultural ecosystems.

Method used

A plant endophytic Bacillus sabensis strain, BSA15, was screened out. It has broad-spectrum antibacterial activity, can stably colonize in plants, and inhibits a variety of plant pathogenic fungi and oomycetes by producing antibacterial metabolites. It can be prepared into various formulations of microbial fungi.

Benefits of technology

Bacillus safranin BSA15 exhibits highly efficient and stable inhibitory effects against a variety of plant pathogens, enhancing disease control and reducing the use of chemical pesticides, thus meeting the requirements of green agriculture.

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Abstract

The application belongs to the field of agricultural microbial technology, and particularly relates to a plant endophytic Bacillus safensis and application thereof in plant disease prevention and treatment. The plant endophytic Bacillus safensis has a strain number of BSA15, a classification name of Bacillus safensis Bacillus safensis , a preservation number of CGMCC No. 36637, and is preserved in the China General Microbiological Culture Collection Center on November 17, 2025. The Bacillus safensis has a broad-spectrum inhibitory activity on pathogenic fungi and oomycetes, and can produce a significant inhibitory effect on plant pathogenic microorganisms through multiple mechanisms. In addition, the Bacillus safensis BSA15 can be stably colonized in the plant body as an endophyte, further enhancing the disease prevention and control effect. Using the strain for disease prevention and treatment can significantly reduce the use amount of chemical pesticides, reduce pesticide residues and environmental pollution, and meet the requirements of green agriculture and sustainable development.
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