Paenibacillus terrae PY8 controls Botrytis cinerea and modifies the endophytic microbial community of the medicinal plant, Paris polyphylla
文献类型： 外文期刊
作者： Tang, Tao 1 ; Zhang, Yunhua 2 ; Wang, Fanfan 1 ; Mao, Ting 1 ; Guo, Jie 1 ; Guo, Xiaoliang 1 ; Duan, Yuanyuan 1 ; You, Jingmao 1 ;
作者机构： 1.Hubei Acad Agr Sci, Inst Chinese Herbal Med, Enshi 445000, Peoples R China
2.Huazhong Agr Univ, Coll Plant Sci & Technol, Hubei Insect Resources Utilizat & Sustainable Pest, Wuhan 430070, Peoples R China
关键词： Biological control; Botrytis cinerea; Paenibacillus terrae; Leaf microbiome Endophytic microbial community
期刊名称：BIOLOGICAL CONTROL （ 影响因子：3.857； 五年影响因子：4.141 ）
ISSN： 1049-9644
年卷期： 2022 年 169 卷
页码：
收录情况： SCI
摘要： Huachonglou (Paris polyphylla Smith var. chinensis (Franch.) Hara) is an important traditional Chinese herbal medicine. Botrytis cinerea is a plant pathogen that causes significant economic losses of P. polyphylla. Presently, chemical fungicides are the primary means of effective control of gray mold caused by B. cinerea. As a safer and greener control method, biocontrol agents (BCAs) for gray mold of P. polyphylla are very important. In the present study, a biocontrol agent, Paenibacillus terrae PY8, was isolated from the endophytic microbial community of leaves of the medicinal plant, Paris polyphylla. PY8 significantly reduced gray mold infections by Botrytis cinerea and additionally increased P. polyphylla yield and the level of polyphyllin I and II of P. polyphylla detected in rhizomes. An analysis of the endophytic microbial community of leaves of P. polyphylla indicated that the foliar application of P. terrae PY8 favorably altered the composition and structure of the endophytic community in P. polyphylla by decreasing the total abundance of potential plant pathogenic fungi. The effect of biocontrol agents on the endophytic microbiome may represent a new criterion for evaluating biocontrol agents in the future. Results of the present study provide theoretical support for the field application of PY8 on P. polyphylla for the control of gray mold.
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