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球细菌菌株的生物控制潜力抗小硬化菌 Jagger 导致菜滴落

Lihui Xu^1,2,3, Qinghua Shang⁴, Mogens Nicolaisen⁵

¹Institute of Eco-Environmental Protection, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.

|January 25, 2025

概括

百菌 velezensis Bac20有效地控制了由Sclerotinia minor引起的落病. 这种细菌抑制了病原体的生长,并大大减少了作物损失,提供了一个有前途的生物控制解决方案.

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:

由Sclerotinia minor引起的落是一种破坏性土壤传播疾病,影响作物产量.
生物防治剂为植物疾病的化学治疗提供了一个可持续的替代方案.

研究的目的:

为了识别和评估来自Sclerotinia minor感染的细菌菌株,作为潜在的生物控制剂.
评估已识别的细菌菌株在控制落病中的有效性.

主要方法:

隔离和体外对抗性测定31种细菌菌株的Sclerotinia minor.
使用16S rRNA和多基因遗传学分析识别有前途的菌株 (Bac20和Bac45).
使用MALDI-TOF MS分析脂质产量 (表面素,伊图林,素) 并评估温室试验中的生物控制疗效.

主要成果:

鉴定出Bacillus velezensis Bac20和Bacillus subtilis Bac45是有效的对抗剂.
与Bac45.5相比,Bac20表现出对S.小和更高的伊图林生产具有优越的抑制活性.
在温室实验中,Bac20注射导致了71.7%的落控制,并抑制了酸的形成.

结论:

百菌 velezensis Bac20是一种高度有效的生物控制剂,用于对抗小硬化菌.
由Bac20产生的脂化合物,特别是伊图林,有助于其对抗活性.
这项研究突出了B. velezensis Bac20在可持续管理生菜病的潜力.

关键词:

细菌杆菌是一种小型硬化症 Jagger Jagger 的情况.反对主义的对立.生物控制生物控制沙拉滴落在沙拉滴落

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