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Yingde Li^1,2,3,4, Yong Wei^1,2,3,4, Youlei Shen^1,2,3,4

¹State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems Lanzhou University Lanzhou China.

iMetaOmics

|February 12, 2026

概括

常见菌根网络 (CMN) 在植物之间传递病原体诱导的防御信号. 这项研究表明,CMN改变受体植物植物界微生物组,并提高植物防御化合物的活性.

科学领域:

植物病理学植物病理学
微生物生态学微生物生态学
菌类学菌类学是指菌类学.

背景情况:

树枝状菌根 (AM) 菌类形成共同的菌根网络 (CMN),连接植物.
虽然AM真菌在土壤中的作用已知,但它们通过病原体攻击的CMNs对植物圈微生物群的影响尚不清楚.

研究的目的:

研究CMN如何影响与病原体感染的供体植物相关的受体植物中的防御化合物和植物圈微生物群.
了解CMN介导的植物对植物的通信,以应对病原体感染.

主要方法:

检查了防御酶,植物激素和植物圈微生物群的多样性,结构和网络复杂性.
使用白叶三叶草 (Trifolium repens) 作为感染Stemphylium sarciniforme的供体植物,使用多年生草 (Lolium perenne) 作为受体植物.

主要成果:

通过CMN与感染的供体三叶草连接的受体草显示出更高的催化酶活性和更高的植物圈微生物丰富度 (ACE,属,物种).
病原体感染改变了接收者麦草植物圈社区结构,增加了真菌网络的复杂性.
催化酶和多氧化酶活动与植物界真菌多样性和与抗病相关的微生物有积极的相关性.

结论:

通过CMN调解受体植物植物界微生物组的变化,并在与病原体感染的捐赠者相关联时增强防御酶活性.
这些CMN诱导的植物圈微生物群的变化可能有助于植物对病原体的防御.
在病原体入侵下,CMN在社区层面的植物防御反应中发挥作用.

关键词:

常见的菌根菌根网络防御信号防御信号高通量测序的测序方法植物圈微生物群的微生物群.麦草麦草是一种麦草.白色的三叶草是白色的三叶草

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