生物圈和树脂圈微生物群落的不同组合过程沿着环境梯度沿着环境梯度
Yang Li1,2, Jinsong Wang1, Junxiao Pan1
1Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China.
Plant, cell & environment
|October 25, 2024
概括
随机过程主要塑造植物表面微生物在植物圈和根系圈. 环境变化可以将组装从随机性转变为决定性,这取决于植物区和物种.
科学领域:
- 微生物生态学 微生物生态学
- 植物与微生物的相互作用
- 生态系统科学 生态系统科学
背景情况:
- 突发性微生物群落对于植物健康和生态系统运行至关重要.
- 了解植物圈和根圈微生物的组装过程 (随机与决定性) 是至关重要的,但仍然有限.
研究的目的:
- 为了比较草的植物圈和草根圈中的形微生物群落的空间变化和组装过程.
- 调查环境异质性对微生物组合的影响.
主要方法:
- 在西藏高原1400公里长的1400公里横段,对两个主要草的微生物群落进行了调查.
- 评估了植物区 (植物圈和根圈) 和宿主物种之间的空间变异,并比较了组装过程.
主要成果:
- 在植物区和宿主物种之间观察到微生物群落组成的显著差异.
- 随机过程,包括漂移和分散,主要影响了两部分微生物的聚集,在植物界的影响更大.
- 越来越多的环境异质性导致从随机组合转向确定性组合,这种过渡的性质 (同质或可变选择) 取决于植物区和宿主物种.
结论:
- 随机性是形微生物在植物圈和树圈中的聚集的主要驱动因素,特别是在植物圈.
- 环境异质性可以改变微生物组装动态,转向确定性过程.
- 这些发现增强了对高山生态系统中的植物微生物组组合及其在宿主植物适应中的作用的理解.
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