通过生物活性代谢物分泌和球微生物组的调节控制小麦中的菌
Fatima Ezzahra Oulkhir1, Abdelmounaaim Allaoui2, Ayoub Idbella3
1AgroBioSciences (AgBS) Program College of Agriculture and Environmental Sciences, Mohammed VI Polytechnic University, Lot 660, Hay Moulay Rachid, Ben Guerir, 43150, Morocco. Fatimaezahra.oulkhir@um6p.ma.
Microbial ecology
|August 20, 2025
概括
在实验室和实验中,Bacillus subtilis ED24有效抑制了小麦病原体Fusarium culmorum. 这种内菌增强了小麦的发芽,生长和种子产量,为化学杀菌剂提供了可持续的替代品.
科学领域:
- 农业科学
- 植物病理学
- 微生物学
背景情况:
- 虫致使小麦由于根和茎腐烂而大幅损失产量.
- 化学杀菌剂如特布可纳是常用的,但也引发了环境问题.
- 内生菌为植物疾病提供潜在的生物控制剂.
研究的目的:
- 评估Bacillus subtilis ED24对Fusarium culmorum的抗真菌作用.
- 评估B. subtilis ED24对小麦生长和产量的影响.
- 探索B. subtilis ED24作为化学杀菌剂的可持续替代品.
主要方法:
- 通过B. subtilisED24进行F. culmorum菌体生长的体外抑制试验.
- 在受控条件下评估小麦发芽,生长和产量.
- 通过B. subtilis ED24和根球微生物组调节产生的二次代谢物的分析.
主要成果:
- B. subtilis ED24 抑制了高达 87% 的 F. culmorum 菌体生长,并产生了 37 种二次代谢物.
- 与特布可纳和受感染对照相比,B. subtilis ED24显著提高了小麦发芽率 (85%) 和种子产量.
- B. subtilis ED24调节了根球微生物群,丰富了有益的真菌和细菌.
结论:
- 细菌ED24表现出强大的抗真菌作用对菌.
- B. subtilis ED24促进小麦生长和产量,这表明生物活性代谢物和微生物组调节的作用.
- 这种内生细菌为小麦生产提供了有前途的可持续生物控制剂.
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