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中国生物防治学报 ›› 2025, Vol. 41 ›› Issue (3): 585-592.DOI: 10.16409/j.cnki.2095-039x.2025.02.038

• 研究论文 • 上一篇    

解淀粉芽胞杆菌ZF522的分离鉴定及对生姜根腐病防治效果

李森1, 李磊1, 刘世程1, 段广荣2, 陈朱侃3, 石延霞1, 柴阿丽1, 李宝聚1, 谢学文1   

  1. 1. 中国农业科学院蔬菜花卉研究所/蔬菜生物育种全国重点实验室, 北京 100081;
    2. 中化作物保护品有限公司, 上海 200131;
    3. 杭州市富阳区农业局, 杭州 311400
  • 收稿日期:2024-12-02 发布日期:2025-06-20
  • 通讯作者: 李宝聚, 谢学文
  • 作者简介:李森,男,硕士研究生,E-mail: 2897415014@qq.com;李磊,男,博士,副研究员,E-mail: lilei01@caas.cn;通信作者,谢学文,男,博士,研究员,E-mail: xiexuewen@caas.cn;李宝聚,男,博士,研究员,E-mail: libaojuivf@163.com。
  • 基金资助:
    国家重点研发计划(2024YFD2000010);西藏自治区科技计划(XZ202401ZY0049);中国农业科学院科技创新工程(CAAS-ASTIP-IVFCAAS);农业农村部园艺作物生物学与种质创制重点实验室(IVF2023)

Isolation and Identification of Bacillus amyloliquefaciens ZF522 and Its Control Effect on Ginger Root Rot

LI Sen1, LI Lei1, LIU Shicheng1, DUAN Guangrong2, CHEN Zhukan3, SHI Yanxia1, CHAI Ali1, LI Baoju1, XIE Xuewen1   

  1. 1. State Key Laboratory of Vegetable Biobreeding/Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
    2. Sinochem Crop Protection Products Co., Ltd., Shanghai 200131, China;
    3. Hangzhou Fuyang District Agriculture and Rural Bureau, Hangzhou 311400, China
  • Received:2024-12-02 Published:2025-06-20

摘要: 由瓜果腐霉菌Pythium aphanidermatum引起的生姜根腐病严重危害着生姜生产,给生姜生产带来了严重的经济损失。目前生姜的茎基部类的病害难以防治,使用化学药剂又容易残留,对根茎类病害的生物防治目前也缺乏有效的防控产品。本试验从生姜的根际土壤中分离得到芽胞杆菌,通过对生姜根腐病的离体筛选,筛选出1株离体防效可以达到57.67%的生防菌株。根据形态特征、生理生化特性以及多基因系统发育树分析确定ZF522菌株为解淀粉芽胞杆菌Bacillus amyloliquefaciens。盆栽试验条件下,生防菌株ZF522对生姜根腐病的防效达到50.84%。经琼脂糖凝胶电泳检测,菌株ZF522含有srfA、fenA、ituA、ituC、bymA、bymC等有抑菌作用的脂肽类化合物合成基因。这些基因与报道过的抗菌脂肽物质均是密切相关的。综上所述,菌株ZF522对生姜根腐病具有很好的生防潜力,是一株具有开发利用价值的生防菌株。

关键词: 解淀粉芽胞杆菌, 生姜根腐病, 拮抗菌, 菌株鉴定, 防治效果

Abstract: Ginger root rot caused by Pythium aphanidermatum seriously endangers ginger production and brings serious economic losses to ginger production. At present, the stem base diseases of ginger are difficult to control, and the use of chemical agents is easy to remain. The biological control of rhizome diseases is also lack of effective prevention and control products. In this experiment, Bacillus was isolated from the rhizosphere soil of ginger, and a strain with good control effect was screened by in vitro screening of ginger root rot. ZF522 was identified as Bacillus amyloliquefaciens according to its morphological characteristics, physiological and biochemical characteristics and phylogenetic tree analysis. Under the condition of pot experiment, the control effect of biocontrol strain ZF522 on ginger root rot reached 50.84%. Agarose gel electrophoresis showed that strain ZF522 contained srfA, fenA, ituA, ituC, bymA, bymB and other antimicrobial lipopeptide synthesis genes. These genes are closely related to the reported antimicrobial lipopeptides. In summary, strain ZF522 has good biocontrol potential against ginger root rot, and is a biocontrol strain with development and utilization value.

Key words: Bacillus amyloliquefaciens, ginger rhizome rot, antagonistic bacterium, strain identification, control effect

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