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对于具有对Fusarium graminearum对抗作用的产脂细菌的菌株优先排序

Gang Wang¹, Yuting Wang², Junqiang Hu³

¹Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology/Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs/Key Laboratory for Agro-product Safety Risk Evaluation (Nanjing), Ministry of Agriculture and Rural Affairs/Collaborative Innovation Center for Modern Grain Circulation and Safety/Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, People's Republic of China; School of Ocean Food and Biological Engineering, Jiangsu Ocean University, Lianyungang, 222005, People's Republic of China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China.

Microbial pathogenesis

|June 1, 2025

概括

乙氨基面菌株7D3有效控制Fusarium graminearum,一种导致小麦和真菌毒素污染的真菌. 这种生物控制剂破坏真菌细胞膜并抑制生长,提供了绿色农业解决方案.

科学领域:

农业科学农业科学
微生物学微生物学
植物病理学植物病理学

背景情况:

虫 (Fusarium graminearum) 会对作物造成重大破坏 (例如,小麦) 并产生有害的真菌毒素.
生物控制为农业中化学农药提供了一个可持续的替代方案.
对有效的微生物生物控制剂进行查对于疾病管理至关重要.

研究的目的:

为了识别具有高脂产量和抗真菌活性的细菌菌株,对Fusarium graminearum.
评估已识别的菌株作为小麦的生物控制剂的疗效.
调查所选生物控制剂的作用机制.

主要方法:

基于定量逆转录PCR (qRT-PCR) 的高通量查.
使用液态染色学飞行时间质谱法 (LC-TOF-MS) 进行发酵分析.
在体外测定抗真菌活性,细胞膜破坏,化和子发芽抑制.
温室试验对小麦中Fusarium感染的有效性进行了研究.

主要成果:

鉴定出Bacillus amyloliquefaciens菌株7D3是一种具有强烈抗真菌活性的有力脂产物.
在该菌株的代谢产物中,LC-TOF-MS确定了表面素和伊图林.
这种菌株通过破坏其细胞膜并破坏细胞膜完整性,有效地抑制了Fusarium graminearum.
温室试验证实了在小麦中显著抑制虫感染和真菌毒素积累.

结论:

乙氨基面菌菌株7D3是一种有前途的生物控制剂,可以对抗Fusarium graminearum.
鉴定的菌株提供了一种有效和环保的方法来管理小麦和真菌毒素污染.
该研究提出了一种有价值的高通量查方法,用于发现新生物控制剂.

关键词:

亚米洛基面菌 (Bacillus amyloliquefaciens) 是一种有毒的植物.生物控制生物控制类植物 (Fusarium graminearum) 是一种植物.菌株优先级的排列方式敌对机制的对抗性机制脂类是脂类中的一种.

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