Pseudomontella Z3-4 for inducing tobacco bacterial wilt immunity and application of pseudomontella Z3-4

By activating the immunity of tobacco against bacterial wilt by Pseudomonas moniliforme Z3-4 strain, the problems of drug resistance and microbial community imbalance caused by chemical fungicides were solved, achieving stable disease control and enhanced immunity.

CN121294230APending Publication Date: 2026-01-09NANJING FORESTRY UNIV
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Patent Information

Application Number
CN202511346267.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2026-01-09

AI Technical Summary

Technical Problem

Existing technologies for controlling tobacco bacterial wilt suffer from problems such as the long-term use of chemical fungicides leading to pathogen resistance and disruption of the microbial community balance. Furthermore, traditional biocontrol agents are unstable in their effectiveness and fail to effectively enhance plant immunity.

Method used

Using Pseudomonas moniliforme strain Z3-4, the bacterial agent or preparation is provided for seed soaking and root irrigation to activate the tobacco's immunity against bacterial wilt, promote root defense metabolism, and enhance the tobacco's systemic disease resistance.

Benefits of technology

It significantly improved the control effect of tobacco against bacterial wilt, enhanced the immunity of tobacco, reduced the occurrence of the disease, and mitigated economic losses.

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Abstract

The invention discloses Pseudomonas mendogensis Z3-4 capable of inducing tobacco bacterial wilt immunity and application of the Pseudomonas mendogensis Z3-4. The Pseudomonas mendogensis Z3-4 is preserved in China General Microbiological Culture Collection Center (CGMCC), the preservation address is Beijing, the preservation center number is CGMCC No.35660, the preservation date is August 18, 2025, and the Pseudomonas mendogensis Z3-4 is classified and named as Pseudomonas mendogensis. The strain Z3-4 is an efficient tobacco root colonization bacterium, and can significantly induce the immunocompetence of tobacco to bacterial wilt. The strain Z3-4 is used as a tobacco bacterial wilt resistant vaccine, is applied by adopting a root irrigation method, can effectively prevent and treat tobacco bacterial wilt, and has a wide application prospect.
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