湖北农业科学 ›› 2025, Vol. 64 ›› Issue (3): 182-189.doi: 10.14088/j.cnki.issn0439-8114.2025.03.029

• 生物工程 • 上一篇    下一篇

农杆菌介导的稻瘟病菌遗传转化体系的建立及优化

李爽1, 张淑梅1, 田缘1,2, 潘钰1,3, 刘伟1, 闫更轩1   

  1. 1.黑龙江省科学院微生物研究所,哈尔滨 150010;
    2.东北农业大学食品学院,哈尔滨 150030;
    3.黑龙江大学生命科学学院,哈尔滨 150006
  • 收稿日期:2024-05-16 出版日期:2025-03-25 发布日期:2025-04-17
  • 通讯作者: 闫更轩(1996-),男,黑龙江哈尔滨人,助理研究员,硕士,主要从事植物病害防治研究,(电话)18745058190(电子信箱)predawnyan@126.com。
  • 作者简介:李 爽(2000-),女,内蒙古呼伦贝尔人,硕士,主要从事微生物农药与真菌病害防治研究,(电话)17861408607(电子信箱)ls17861408607@126.com。
  • 基金资助:
    省属科研院所科研业务费项目(CZKYF2021-2-C031)

Establishment and optimization of Agrobacterium mediated genetic transformation system for Magnaporthe oryzae

LI Shuang1, ZHANG Shu-mei1, TIAN Yuan1,2, PAN Yu1,3, LIU Wei1, YAN Geng-xuan1   

  1. 1. Institute of Microbiology,Heilongjiang Academy of Sciences,Harbin 150010, China;
    2. College of Food Science,Northeast Agricultural University, Harbin 150030, China;
    3. School of Life Sciences, Heilongjiang University,Harbin 150006, China
  • Received:2024-05-16 Published:2025-03-25 Online:2025-04-17

摘要: 以稻瘟病菌(Magnaporthe oryzae)为试验材料,通过PCR获得GFP基因,构建pBarg-GFP-BAR-Amp重组载体,使用农杆菌转化法获得能够稳定遗传的含GFP基因的稻瘟病菌菌株,采用单因素与响应面法优化转化条件。稻瘟病菌遗传转化体系的最佳转化条件:OD600 nm为 0.38(农杆菌菌液浓度)、共培养温度为28.2 ℃、共培养时间为2.12 d,转化效率为280.00×10-5。PCR鉴定和荧光显微镜观察发现,转化的稻瘟病菌GFP基因能够正常表达,和野生型稻瘟病菌的致病性无显著差异。

关键词: 稻瘟病菌(Magnaporthe oryzae), 农杆菌介导, 遗传转化, GFP基因, 建立, 优化

Abstract: Magnaporthe oryzae was used as the experimental material. The GFP gene was obtained through PCR, and a pBarg-GFP-BAR-Amp recombinant vector was constructed. The Magnaporthe oryzae strain containing the GFP gene with stable inheritance was obtained using Agrobacterium-mediated transformation. The transformation conditions were optimized using single factor and response surface methodology. The optimal transformation conditions for the Magnaporthe oryzae genetic transformation system were an OD600 nm of 0.38 (Agrobacterium concentration), a co-culture temperature of 28.2 ℃, a co-culture time of 2.12 days, and a transformation efficiency of 280.00×10-5. PCR identification and fluorescence microscopy observation revealed that the GFP gene of the transformant Magnaporthe oryzae could be expressed normally, with no significant difference in pathogenicity compared to the wild-type Magnaporthe oryzae.

Key words: Magnaporthe oryzae, Agrobacterium mediated, genetic transformation, GFP gene, establish, optimization

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