树枝状菌根真菌促进了入侵性黄叶植物 (Brassicaceae) 的发展
Josh Trombley1, John L Celenza2, Serita D Frey1
1Center for Soil Biogeochemistry and Microbial Ecology, Department of Natural Resources and the Environment, University of New Hampshire, Durham, New Hampshire, USA.
Plant, cell & environment
|March 26, 2025
概括
状菌根真菌 (AMF) 意外地使入侵性大末生长翻了一番,这与典型的植物相互作用相反. 这一发现挑战了使用AMF管理入侵物种的假设,表明需要新的策略.
科学领域:
- 植物与微生物的相互作用
- 侵入性物种生物学 侵入性物种生物学
- 菌类学 菌类学是指菌类学.
背景情况:
- 树枝状菌根真菌 (AMF) 是大多数陆地植物的重要互惠者.
- 然而,AMF通常会抑制Brassicaceae家族植物的生长,其中包括许多入侵物种.
- 子 (Alliaria petiolata) 是一种非本土的科植物,侵入北美森林,影响依赖AMF的本土植物.
研究的目的:
- 调查AMF接种对侵入性Alliaria petiolata的生长的影响.
- 确定AMF是否可以用作防治大末入侵的管理工具.
- 了解AMF和子末之间相互作用的基础机制.
主要方法:
- 在受控的实验室和现场条件下,用AMF接种了子末.
- 测量了植物生长,葡萄糖酸盐水平和的可用性.
- 研究了根结构,特别是树,以评估共生交换.
主要成果:
- 在实验室和现场环境中,在AMF接种后,大末的生长显著增加,几乎翻了一番.
- 对AMF的注射与防御化合物葡萄糖酸盐的产生有负相关性.
- 虽然AMF不会在菜末根中形成树,但会增加植物和土壤.
结论:
- 与预期相反,AMF通过非传统途径促进侵入性大末生长,增加的可用性.
- 这项研究驳斥了子末抑制AMF的假设,强调了它从相互作用中获益.
- 这些发现对入侵生物学,农业和入侵布拉西卡系植物物种的管理有重大影响.
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