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细菌 velezensis BE2 通过直接的对抗和诱导的全身耐药性来控制小麦和大麦疾病

Emma Dutilloy¹, Anthony Arguëlles Arias², Nicolas Richet³

¹Université de Reims Champagne Ardenne, INRAE, RIBP USC 1488, 51100, Reims, France.

Applied microbiology and biotechnology

|January 8, 2024

概括

贝西勒斯贝尔塞尼斯BE2通过直接对抗和诱导植物耐药性,有效控制小麦和大麦的真菌疾病,如Septoria tritici blotch和网斑. 这种环保的生物控制剂显示出作为化学杀菌剂的可持续替代品的希望.

科学领域:

农业科学农业科学
植物病理学植物病理学
微生物学微生物学

背景情况:

小麦和大麦是全球重要的作物,易患真菌病.
化学杀菌剂是有效的,但对环境造成负担.
生物控制剂提供了一个可持续的,环保的替代品.

研究的目的:

评估Bacillus velezensis BE2对控制Septoria tritici斑点 (Zymoseptoria tritici) 和网斑点 (Pyrenophora teres) 的作用.
研究BE2对这些病原体的作用机制.

主要方法:

在体外对抗性测定和微观分析真菌生长抑制.
细菌代谢物的UPLC-MS分析.
在植物评估真菌DNA含量和细菌化后的基因表达.

主要成果:

在体外,BE2对Z. tritici和P. teres表现出显著的对抗作用,抑制了子发芽和菌根生长.
代谢分析在BE2的超中确定了循环脂,可能会调解生物控制.
在根层应用BE2显著降低了病原体负荷,并诱导了植物防御机制 (化).

结论:

百日菌 (Bacillus velezensis BE2) 是一种有效的生物控制剂,可以对抗主要的小麦和大麦真菌病原体.
BE2通过直接的对抗作用,并通过诱导植物的系统性抵抗而起作用.
该研究强调了BE2在可持续农作物疾病管理方面的潜力.

关键词:

百日菌 velezensis BE2 是一个生物.生物控制生物控制基因表达基因表达在此之前,NRPS是NRPS.网红斑点网红斑点在线查看塞普托利亚 (Septoria) 是一个神社.

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