起源问题:菌根的生长反应和对病原体的诱导耐药性取决于菌根和病原体的来源
Camille S Delavaux1,2, Haley Burrill2,3, Robert Menning2
1Institute of Integrative Biology, ETH Zurich (Swiss Federal Institute of Technology), Universitätsstrasse 16, 8092, Zurich, Switzerland.
The New phytologist
|July 7, 2025
概括
树状菌根真菌 (AMF) 为本地植物提供了抗病原体的耐药性. 植物,AMF和病原体之间的本地适应增强了这些好处,对本地植物生态至关重要.
科学领域:
- 生态生态学 生态生态学
- 植物病理学 植物病理学
- 菌类学 菌类学是指菌类学.
背景情况:
- 树状菌根真菌 (AMF) 对本土植物群落至关重要,并影响植物入侵.
- 虽然AMF的营养益处得到了充分的研究,但它们在赋予病原体耐药性的作用,特别是在本地植物物种中,仍未得到充分研究.
- 新型植物微生物相互作用对AMF介导的病原体耐药性的影响在很大程度上是未知的.
研究的目的:
- 调查草原本土植物物种中菌根诱导的对病原体的耐药性 (MIR).
- 评估本地和非本地AMF对植物生长和病原体耐药性的影响.
- 确定局部适应在植物-AMF-病原体相互作用中的作用.
主要方法:
- 在五种本土植物物种中测试了69种田间隔离的真菌和菌的病原性.
- 评估了来自不同种群的三种本地植物物种和乳草 (Asclepias syriaca) 对本地和非本地AMF和病原体的植物生长反应.
- 在乳草中测量了菌根诱导耐药性 (MIR).
主要成果:
- 在乳草 (Asclepias syriaca) 中发现了MIR的证据.
- 根据植物物种,AMF表现出不同的影响;本地乳草种群从AMF中受益.
- 植物生长反应受到当地适应的影响,与一致的AMF病原体起源加强了耐药性.
结论:
- 病原体耐药性是AMF对本地植物的显著,低估的好处.
- 当地采购的AMF和植物对于保持本地植物生态和健康至关重要.
- 了解植物微生物相互作用,包括局部适应,是预测生态系统对环境变化的反应的关键.
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