欧洲各地土壤微生物多样性的模式
Maëva Labouyrie1,2,3, Cristiano Ballabio2, Ferran Romero3
1Department of Plant and Microbial Biology, University of Zurich, Zürich, Switzerland.
Nature communications
|June 8, 2023
概括
微生物多样性在未受干扰的森林中最低,与高度受干扰的耕地形成鲜明对比. 土地利用变化显著影响微生物功能,影响有益的共生生物和病原体.
科学领域:
- 生态生态学 生态生态学
- 微生物学 微生物学
- 环境科学 环境科学
背景情况:
- 了解微生物群落的组成和多样性已经确立,但它们与微生物功能之间的联系,特别是在大规模上,仍然不太了解.
- 土地利用扰乱是影响生态系统的重要环境因素.
研究的目的:
- 分析微生物生物多样性指标和潜在的功能组在欧洲的土地利用扰乱梯度.
- 研究微生物多样性,功能和环境因素之间的关系.
主要方法:
- 分析了来自24个欧洲国家的715个地点的79000多个细菌和25000个真菌操作分类单位 (OTU).
- 评估微生物生物多样性和潜在的功能组分布沿着土地利用扰乱梯度.
- 考虑到植被覆盖面,气候和土壤特性的统计建模.
主要成果:
- 最低的细菌和真菌多样性被观察到与草原和高度干扰的环境 (耕地) 相比,在不太受干扰的环境 (林地) 中.
- 高度乱的环境显示细菌化学异质菌的增加,菌植物病原体和菌植物的比例更高,有益的菌植物共生体减少.
- 微生物群落的空间模式和预测的功能最好通过考虑植被覆盖,气候和土壤特性之间的相互作用来解释.
结论:
- 土地利用干扰显著改变微生物社区结构和功能,对多样性和功能群体产生明显影响.
- 环境政策和监测工作应同时考虑分类学和功能性微生物多样性.
- 关键环境决定因素之间的相互作用对于理解大规模微生物模式至关重要.
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