植物多样性增加了多样性和网络复杂性,而不是改变了亚热带森林中叶子相关真菌的社区组装过程
Jie Li1, Xing-Chun Li2,3, Hui-Yun Gan2,3
1State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. lij@im.ac.cn.
Science China. Life sciences
|October 21, 2024
概括
植物多样性增加了与叶子相关的真菌多样性和网络复杂性. 丰富的树种增强了真菌群落,但并没有改变推动它们聚集的生态过程.
科学领域:
- 生态生态学 生态生态学
- 菌类学 菌类学是指菌类学.
- 植物与真菌的相互作用
背景情况:
- 植物多样性对生态系统功能至关重要,但其对叶子相关的真菌群落的影响尚不清楚.
- 叶子真菌包括表观性 (居住在表面) 和内观性 (内部) 社区,每一个都有独特的生态作用.
- 了解真菌社区的组合是理解植物和真菌相互作用以及生态系统健康的关键.
研究的目的:
- 调查树木物种丰富性如何影响树叶和内真菌的社区组合和网络复杂性.
- 确定随机 (例如,分散限制) 与确定性 (例如,选择) 过程在塑造真菌群落中的相对重要性.
- 分析不同树种丰富度的植物真菌相互作用网络的结构性质.
主要方法:
- 利用rDNA内部转录间隔器1 (ITS1) 区域的amplicon测序来描述真菌群落的特征.
- 在中国亚热带树种丰富性实验 (116种) 中检查了真菌群落.
- 分析了植物和真菌的相互作用网络,并量化了真菌的多样性 (α-, β-和 γ-多样性).
主要成果:
- 真菌群体的聚集主要是由静态过程驱动的,在型真菌中分散限制更大,在内型真菌中选择更强.
- 植物菌网络比植物内菌网络更复杂 (连接,嵌套),但不那么专业和模块化.
- 树种丰富与真菌多样性和网络复杂性正相关,无论是型真菌还是内型真菌.
结论:
- 树种的多样性增强了叶子相关的真菌群落的多样性和复杂性.
- 增加树木物种丰富性扩大了真菌多样性和网络相互作用,但没有改变管理社区集会的基本生态过程.
- 研究结果强调了植物多样性在支持复杂的真菌群落和相关生态系统功能的重要性.
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