Pathogenic bacteria capable of causing radix astragali red heart disease related root rot symptoms and application of pathogenic bacteria

By studying and screening Fusarium oxysporum FUS-001-2025, the pathogen of Astragalus membranaceus red heart disease, and its sensitivity to fungicides, the problems of enhanced drug resistance and incomplete antibacterial effects in existing technologies have been solved, achieving highly efficient chemical control of Astragalus membranaceus red heart disease.

CN122445478APending Publication Date: 2026-07-24INNER MONGOLIA MEDICAL UNIV +2
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Patent Information

Application Number
CN202610608397.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-06
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing chemical fungicides have problems such as increased drug resistance and incomplete antibacterial effect in the prevention and control of Astragalus membranaceus red heart disease, making it difficult to achieve efficient control.

Method used

This study provides a pathogenic fungus, Fusarium sp. FUS-001-2025, that causes root rot symptoms associated with Astragalus membranaceus red heart disease. Its biological characteristics and sensitivity to fungicides were investigated, and effective chemical control agents such as 25% silazole·prochloraz, 25% bromuconazole, 50% azoxystrobin, and 70% thiophanate-methyl were screened out.

Benefits of technology

It provides precise guidance on medication, reduces blind application of drugs and the development of drug resistance, improves the prevention and control effect, and provides a scientific basis for the chemical control of Astragalus membranaceus red heart disease.

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Abstract

The invention relates to the technical field of microorganisms, in particular to pathogenic bacteria causing radix astragali red heart disease related root rot symptoms and application of the pathogenic bacteria, the pathogenic bacteria are Fusarium sp. FUS-001-2025, the pathogenic bacteria are preserved in the China General Microbiological Culture Collection Center on March 16, 2026, and the preservation number is CGMCC No. 42529; the strain is determined as a fusarium new record strain through morphology and molecular identification, and sensitivity determination of a bactericide shows that 25% of silazole.prochloraz has the strongest antibacterial effect, and 25% of bromothalonil, 50% of azoxystrobin and 70% of thiophanate methyl have significant bacteriostasis under high concentration. The invention provides an important pathogenic bacterium resource for the pathogenic mechanism and disease resistance evaluation of the radix astragali red heart disease and the development of prevention and treatment medicaments.
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