同类型与异类型的传播形状为植物圈微生物群的专业化提供了主机
Kyle M Meyer1, Isabella E Muscettola2, Ana Luisa S Vasconcelos3
1Department of Integrative Biology, University of California, Berkeley, Berkeley, CA 94720, USA; Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, CA 94720, USA.
Cell host & microbe
|November 29, 2023
概括
植物微生物组传输形状主机专业化. 同特定的传播促进了微生物群的普遍性,而异型的传播推动了专业化,影响了植物健康和疾病生态.
科学领域:
- 微生物学 微生物学
- 生态生态学 生态生态学
- 植物科学 植物科学
背景情况:
- 同种 (同一物种) 和异种 (不同物种) 主体之间的病原体传播会影响病原体的专业化和毒性.
- 传染方式对微生物组专业化和泛性的影响在微生物组层面上仍然在很大程度上未被探索.
研究的目的:
- 调查传染方式 (共特异性与异特异性) 是否影响与叶子相关的植物微生物组的专业化和泛化.
- 为了确定宿主历史是否影响微生物群落结构和功能.
主要方法:
- 叶子相关微生物组在同类植物宿主体内的实验传递.
- 叶子相关微生物组在异种植物宿主之间进行实验传递.
- 将微生物组移植到新植物上,以评估宿主差异化和竞争优势.
主要成果:
- 同特定的传播导致了持续的宿主过效应,并增加了微生物组内部的网络连接.
- 异种特异性传输导致宿主过效应较弱,但相互连接性更高.
- 通过异种宿主传递的微生物组在新植物上显示出较少的分化,这表明向泛性转变.
- 来自番茄宿主的微生物组,在同物种传播后,在番茄植物上表现出与其他物种传递的植物相比的竞争优势.
结论:
- 传播方式显著影响微生物群的多样性和宿主协会.
- 重复的同类传输促进了微生物群对特定宿主的专业化.
- 重复的异种性传播促进了微生物群的普遍性,允许更广泛的宿主协会.
- 这些发现强调了传染史在推动微生物群适应和生态相互作用中的作用.
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