Lotus root endophyte Bacillus Velez strain LS8 and its application

By using the enzyme secreted by Bacillus Velezii LS8 to hydrolyze the cell walls of plant fungi and prepare biocontrol agents, the problem of the limited variety and unstable effects of existing Bacillus biocontrol agents is solved, and effective prevention and control of soil-borne fungal diseases such as lotus root rot is achieved.

CN116042489BActive Publication Date: 2025-09-09INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI +1
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Patent Information

Application Number
CN202310169878.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-02-27
Publication Date
2025-09-09
Estimated Expiration
2043-02-27

AI Technical Summary

Technical Problem

There are few types of existing Bacillus biocontrol agents, and their antibacterial effects are single and unstable, making it difficult to effectively prevent and control soil-borne fungal diseases such as lotus root rot.

Method used

Bacillus velezensis strain LS8 was used to secrete cellulase, β-1,3-glucanase and protease to hydrolyze the cell wall components of plant fungi, inhibit the growth of plant pathogens, and prepare a biocontrol agent for controlling soil-borne diseases such as lotus root rot.

Benefits of technology

Bacillus Velez LS8 has broad-spectrum antifungal properties and significant antagonistic effects, and can effectively prevent and control various soil-borne fungal diseases of plants such as lotus root rot disease, providing good prospects for industrial application.

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Abstract

The present invention relates to the field of biotechnology, and in particular to a lotus root endophyte Bacillus Velez subtilis strain LS8 and its application. The present invention provides a lotus root endophyte Bacillus Velez subtilis LS8, which is deposited in the General Microbiology Center of the China Microorganism Culture Collection Committee with a deposit number of CGMCC No. 24563. The lotus root endophyte Bacillus Velez subtilis LS8 and its biocontrol agent have the characteristics of a wide range of antifungal effects and significant antagonistic effects, and can be used to prevent and control plant fungal diseases, thus having good industrial application prospects. At the same time, the lotus root endophyte Bacillus Velez subtilis strain LS8 provided by the present invention has a significant preventive effect in potted plant experiments and has great practical value for the prevention and control of crop diseases.
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