湖北农业科学 ›› 2021, Vol. 60 ›› Issue (2): 82-84.doi: 10.14088/j.cnki.issn0439-8114.2021.02.015

• 植物保护 • 上一篇    下一篇

烟草黑胫病生防菌LG-3的分离鉴定及防效研究

张幸博1, 郭小红2,3, 刘玉珍2,3, 李建华1, 王京1, 孙晓伟1, 法鹏飞2,3, 危月辉2,3   

  1. 1.河南省烟草公司许昌市公司,河南 许昌 461000;
    2.福建三炬生物科技股份有限公司,福建 厦门 361001;
    3.福建省生物肥料企业工程技术研究中心,福建 厦门 361001
  • 收稿日期:2020-10-29 出版日期:2021-01-25 发布日期:2021-02-07
  • 通讯作者: 危月辉(1988-),男,江西抚州人,硕士,主要从事农用微生物研究工作,(电子信箱)weiyuehui@126.com。
  • 作者简介:张幸博(1985-),男,河南漯河人,助理农艺师,硕士,主要从事烟草农业科技推广工作,(电话)15060753285(电子信箱)916438014@qq.com。
  • 基金资助:
    河南省烟草公司许昌市公司科研开发项目(2018411000240050)

Isolation, identification and control effect of antagonistic bacteria LG-3 of tobacco black shank

ZHANG Xing-bo1, GUO Xiao-hong2,3, LIU Yu-zhen2,3, LI Jian-hua1, WANG Jing1, SUN Xiao-wei1, FA Peng-fei2,3, WEI Yue-hui2,3   

  1. 1. Henan Tobacco Company Xuchang Company, Xuchang 461000,Henan,China;
    2. Fujian Sanju Biotechnology Co., Ltd., Xiamen 361001,Fujian,China;
    3. Fujian Engineering Technological Research Center of Biofertilizer,Xiamen 361001,Fujian,China
  • Received:2020-10-29 Online:2021-01-25 Published:2021-02-07

摘要: 采用平板对峙法,从河南省许昌市健康烟草根际土壤中筛选得到35株烟草黑胫病的拮抗菌。通过防效试验,获得1株对烟草黑胫病防效较好的菌株LG-3,经鉴定,LG-3为烟草节杆菌(Arthrobacter nicotianae),经毒理分析,该菌为实际无毒菌种。首次报道了烟草节杆菌作为生防菌对烟草黑胫病致病菌具有拮抗作用,对烟草苗期黑胫病的防效可达85.59%。

关键词: 烤烟, 黑胫病, 生防菌, 鉴定, 防效

Abstract: 35 antagonistic strains of tobacco black shank disease were screened from the rhizosphere soil of Xuchang healthy tobacco by the plate confrontation method. By means of control effect test, a strain LG-3 with good control effect on black shank disease of tobacco was obtained. After identification, LG-3 was identified as Arthrobacter nicotianae, and by toxicological analysis, it was found to be a non-toxic strain. It was reported for the first time that Arthrobacter nicotianae, as a biocontrol bacterium, had an antagonistic effect on the pathogenic bacteria of tobacco nigtibia, and the control effect of tobacco nigtibia at the seedling stage can reach 85.59%.

Key words: flue-cured tobacco, black shank, biocontrol bacteria, identification, control effect

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