Journal of Zhejiang Agricultural Sciences ›› 2024, Vol. 65 ›› Issue (7): 1676-1682.DOI: 10.16178/j.issn.0528-9017.20230028

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Research progress on the functions of fimbria in the colonization of phytopathogenic nematodes by biological control bacteria

HE Shan1,2(), WU Di1,2, ZHAO Yu1,2, WANG Qi3, ZHANG Lixia4,*(), NIU Ben1,2,*()   

  1. 1. State Key Laboratory of Tree Genetics Breeding,Northeast Forestry University, Harbin 150040, Heilongjiang
    2. College of Life Sciences, Northeast Forestry University, Harbin 150040, Heilongjiang
    3. Department of Plant Pathology, China Agricultural University, Beijing 100193
    4. Sino Green Agri-Biotech Co., Ltd., Beijing 102101
  • Received:2023-01-06 Online:2024-07-11 Published:2024-07-17

Abstract:

Plant pathogenic nematodes do serious harm to forestry production and lack of effective prevention and control measures, which has caused huge economic losses. Biocontrol bacteria have been used for green control of forest pathogenic nematodes, and good control results have been achieved. However, the mechanism of biocontrol bacteria in the prevention and control of forest nematode diseases is not clear, which seriously hinders the research and development and efficient application of nematode control microbial agents. At present, a large number of research results have confirmed that the colonization ability of biocontrol bacteria on nematodes is closely related to their efficacy of killing nematodes and preventing diseases, and bacterial fimbriae play an important role in the colonization of biocontrol bacteria to nematode hosts. In this paper, the types of Gram-negative bacterial fimbriae and their functions in biological control of bacterial colonization nematodes were reviewed, and the effects of biocontrol bacterial fimbriae on colonization-related biological characters such as movement, adhesion and biofilm formation were discussed. The research and application of fimbriae in the prevention and control of forest nematode diseases were prospected.

Key words: fimbriae, biological control bacterium, phytopathogenic nematode, colonization

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