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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (22): 144-151.doi: 10.11924/j.issn.1000-6850.casb2022-0823

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Advances in Biocontrol Microbes of Potato Late Blight

WEI Peixia1(), FU Haiyan1,2(), ZHOU Shuang3, LIU Chunguang1, WU Tong1, YANG Fengshan1()   

  1. 1 Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education/ Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region/ Key Laboratory of Molecular Biology in College of Heilongjiang Province/ School of Life Sciences, Heilongjiang University, Harbin 150080
    2 Northeast Forestry University, Harbin 150040
    3 Institute of Rural Revitalization Science and Technology, Heilongjiang Academy of Agricultural Sciences, Harbin 150027
  • Revised:2023-05-16 Online:2023-08-05 Published:2023-07-28

Abstract:

Phytophthora infestans, which causes potato late blight, is one of the most destructive pathogens in potato production. Biocontrol agent (BCAs) as an alternative to chemical fungicides to control potato late blight is one of the important measures to ensure the sustainable development of potato production. In this paper, the research situation and characteristics of potato late blight were briefly reviewed, and the current researches of biocontrol microbes against potato late blight were summarized. The species, source, control effect, antibacterial active substances and action mechanism of the biocontrol microbes for P. infestans were systematically summarized from three levels of bacteria, fungi and actinomycetes. The challenges and limitations of the development and application of biocontrol agents were analyzed. It was suggested that the future biological control of potato late blight should be further studied in four aspects: strengthening the defense function of potato, establishing the prediction model of late blight, paying attention to the population dynamics of biocontrol microorganisms and revealing the control mechanism of P. infestans. The aim is to provide reference for the development and application of biocontrol agents against potato late blight, and sustainable development of potato green industry.

Key words: potato, late blight, Phytophthora infestans, antagonistic microorganisms, biocontrol agents, mechanism