生物相互作用通过改变稀有微生物群落来调解土壤功能.
Yi-Fei Wang1,2, Jia-Yang Xu1,3, Zhe-Lun Liu3,4
1Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
Environmental science & technology
|March 20, 2024
概括
土壤动物的相互作用,如掠食,显著影响稀有微生物群落和土壤功能. 长期施肥可以增加土壤对这些动物影响的抵抗力.
科学领域:
- 土壤生态学 土壤生态学
- 微生物生态学 微生物生态学
- 生物地质化学生物地质化学
背景情况:
- 土壤微生物驱动生物地球化学循环和有机物循环.
- 土壤动物对微生物群落的影响尚不清楚.
研究的目的:
- 在土壤动物之间竞争和掠夺下调查土壤微生物群的动态.
- 确定这些相互作用对不同受精历史的土壤中的微生物群落和功能的影响.
主要方法:
- 在两个不同的土壤生态系统中,土壤动物之间引入了竞争和掠夺.
- 分析了微生物社区的组成,功能基因 (C/N循环) 和代谢学.
- 掠夺与竞争的比较影响以及受精历史的影响.
主要成果:
- 动物相互作用显著改变了罕见的微生物群落 (细菌和真菌).
- 掠食增加了碳和循环基因的丰富性.
- 特定的罕见种类 (SM1A02,Gammaproteobacteria,HSB_OF53-F07) 被确定为关键驱动因素.
- 代谢学将增加的基因丰度与动物介导的微生物活动联系起来.
- 掠夺比竞争有更强大的影响;长期的有机肥料增强了土壤的抵抗力.
结论:
- 土壤动物的相互作用,特别是掠食,对于塑造罕见的微生物群落和土壤功能至关重要.
- 稀有微生物是土壤功能基因丰富的关键.
- 土壤动物在微生物动力学中的作用受到受精历史的影响,影响生态系统的弹性.
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