Temporal Changes in the Function of Bacterial Assemblages Associated With Decomposing Earthworms
文献类型：期刊论文
| 作者 | Sun, Yao-Qin ; Ge, Yuan
|
| 刊名 | FRONTIERS IN MICROBIOLOGY
 |
| 出版日期 | 2021 |
| 卷号 | 12期号:0页码:682224 |
| 关键词 | bacterial community decomposition dissolved organic matter earthworm structure-function relationship |
| 英文摘要 | Soil invertebrate corpse decomposition is an ecologically significant, yet poorly understood, process affecting nutrient biogeochemical cycling in terrestrial ecosystems. Here, we attempted to answer how the substrate chemistry and microbial community change during soil invertebrate (earthworm) decomposition and what roles microbes play in this process. Specifically, the dead earthworms (Amynthas corticis) were buried in two soils where the earthworms inhabited, or not, until more than 50% of the earthworm mass was lost. For both soils, earthworms decomposed faster during the early stage (between 0 and 3 days), as reflected by the higher rate of decomposition and increased accumulation of dissolved organic matter (DOM). This decomposition pattern was paralleled by bacterial community dynamics, where bacterial richness and diversity were significantly higher during early decomposition (p < 0.05) with the relative abundances of many genera decreasing as decomposition progressed. The succession of the bacterial community composition was significantly correlated with time-course changes in DOM composition (p < 0.05). Particularly, more functional groups (e.g., microbes associated with carbon, nitrogen, and sulfur cycling) were identified to be linked with the change of a specific DOM type during the early decomposition phase. By exploring the ecologically important process of soil invertebrate decomposition and its associated bacterial communities, this study provides evidence, e.g., a statistically significant positive correlation between bacterial community and DOM compositions, which supports the widely recognized yet less-tested microbial community structure-function relationship hypothesis in invertebrate decomposition. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/46947]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Yao-Qin,Ge, Yuan. Temporal Changes in the Function of Bacterial Assemblages Associated With Decomposing Earthworms[J]. FRONTIERS IN MICROBIOLOGY,2021,12(0):682224. |
| APA | Sun, Yao-Qin,&Ge, Yuan.(2021).Temporal Changes in the Function of Bacterial Assemblages Associated With Decomposing Earthworms.FRONTIERS IN MICROBIOLOGY,12(0),682224. |
| MLA | Sun, Yao-Qin,et al."Temporal Changes in the Function of Bacterial Assemblages Associated With Decomposing Earthworms".FRONTIERS IN MICROBIOLOGY 12.0(2021):682224. |
入库方式： OAI收割
来源：生态环境研究中心
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