Bacillus thuringiensis for efficiently poisoning and killing plant parasitic nematodes and application of bacillus thuringiensis

CN119614424AActive Publication Date: 2025-03-14HUAZHONG AGRI UNIV
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Patent Information

Application Number
CN202411792864.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-08
Publication Date
2025-03-14
Estimated Expiration
2044-12-08

AI Technical Summary

Technical Problem

The prior art is difficult to effectively prevent and control plant parasitic nematodes, especially due to the hidden parasitic nature and drug resistance of nematodes, there is a bottleneck in resource scarcity of biological control methods.

Method used

By screening and identifying a highly efficient nematocidal BMB-0181, Bacillus thuringiensis, this strain is able to produce trans aconitol and has high virulence against southern root knot nematodes.

Benefits of technology

The fermentation broth of this strain has a mortality rate of 80% for southern root knot nematodes, and is non-toxic and active against non-plant parasitic nematodes. It has insecticidal specificity and environmental friendliness, and its prevention effect is comparable to that of chemical pesticides.

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Abstract

The invention provides bacillus thuringiensis for efficiently poisoning and killing plant parasitic nematodes and application of the bacillus thuringiensis, and belongs to the technical field of microorganisms. According to the invention, a strain of bacillus thuringiensis BMB-0181 capable of efficiently poisoning and killing plant parasitic nematodes is screened from soil, and the preservation number of the bacillus thuringiensis BMB-0181 is CCTCC (China Center for Type Culture Collection) NO: M 20242644. According to the present invention, the detection results of the strain fermentation broth prove that the trans-aconitic acid yield can be high, and the biological assay and the pot culture experiment prove that the strain has the high poisoning activity on the meloidogyne incognita, can effectively control the field planting of the meloidogyne incognita, and further has the certain growth promoting effect on the tomato; the strain disclosed by the invention can be developed into a novel biological nematode killing pesticide.
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Citation Information

Patent Citations

  • Trans-aconitic acid producing bacteria and application thereof

    CN103421703B

  • Bacillus thuringiensis strain and parasporal crystal thereof, extraction method of parasporal crystal, and application of the two in controlling plant nematode disease

    CN102311936A

  • Bacillus thuringiensis GL-1 and application thereof in phosphate solubilization and disease prevention of soil

    CN102321551A

  • Trans-aconitic acid producing bacteria and application thereof

    CN103421703A

  • Bacillus thuringiensis for controlling heterodera glycines and meloidogyne incognita as well as preparation and applications

    CN108070535A

Cited By

  • Bacillus thuringiensis, microbial inoculum, composite insecticide and application of bacillus thuringiensis, microbial inoculum and composite insecticide

    CN121450552A

  • Bacillus thuringiensis, bacterial agent, composite insecticide and application thereof

    CN121450552B