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| Homogeneous selection is stronger for fungi in deeper peat than in shallow peat in the low-temperature fens of China | |
| Tian, Jianqing1; Huang, Xinya2,3; Chen, Huai2,3; Kang, Xiaoming4; Wang, Yanfen5 | |
| 2022 | |
| 发表期刊 | ENVIRONMENTAL RESEARCH
 |
| ISSN | 0013-9351 |
| 卷号 | 212 |
| 摘要 | Peatlands have accumulated enormous amounts of carbon over millennia, and climate changes threatens the release of this carbon into the atmosphere. Fungi are crucial drivers of global carbon cycling because they are the principal decomposer of organic matter in peatlands. However, the fungal community composition and ecological preferences in peat remain unclear, which restricts our ability to evaluate the role of the fungal community in peat biogeochemical functions. We investigated 54 soils from 6 low-temperature peatlands across China to fill this knowledge gap. The peat was divided into above-water table (AWT) and below-water table (BWT) layers based on the water table fluctuation. We investigated fungal community assembly processes and drivers for each peat layer. The results showed that fungal communities differed significantly among peat layers. The relative abundance of symbiotrophs was significantly higher in the AWT (17.4%) than in the BWT (9.0%), while the abundances of yeast and litter saprotrophs were obviously lower in the AWT than in the BWT. Our results revealed that the assemblage of both fungal taxonomic and phylogenetic communities was mainly governed by stochastic processes in both AWT (87.8%) and BWT (58.6%) layers. However, in the BWT, the relative importance of deterministic processes (28.4%) significantly increased, indicating a potential deterministic environmental selection induced by permanently anaerobic condition. Mean annual precipitation and mean annual temperature were the most critical drives for the assemblage of the fungal community in the BWT. These observations collectively indicate that fungal community assembly is depth-dependent, implying different community assembly mechanisms and ecological functions along the peat profile. These findings highlight the importance of climate driven deep peat fungal community composition assemblages and suggest the potential to project the changes in fungal diversity with ongoing climate change. |
| 关键词 | Yeast Homogeneous selection Dispersal limitation Mean annual precipitation Fen |
| 学科领域 | Environmental Sciences ; Public, Environmental & Occupational Health |
| DOI | 10.1016/j.envres.2022.113312 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | MARCELL EXPERIMENTAL FOREST ; WATER-LEVEL DRAWDOWN ; MICROBIAL COMMUNITY ; ASSEMBLY PROCESSES ; SUBSURFACE PEAT ; CARBON TURNOVER ; BETA-DIVERSITY ; BIOGEOGRAPHY ; PEATLANDS ; DYNAMICS |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| WOS记录号 | WOS:000880062100001 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 文献子类 | Article |
| 出版地 | SAN DIEGO |
| EISSN | 1096-0953 |
| 资助机构 | Second Tibetan Plateau Scientific Expedition [2019QZKK0304] |
| 作者邮箱 | tianjq@ibcas.ac.cn ; chenhuai@cib.ac.cn |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/28969 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Chinese Acad Sci, Inst Microbiol, State Key Lab Mycol, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Chengdu Inst Biol, CAS Key Lab Mt Ecol Restorat & Bioresource Utiliz, Chengdu 610041, Peoples R China 4.Chinese Acad Sci, Chengdu Inst Biol, Ecol Restorat & Biodivers Conservat Key Lab Sichu, Chengdu 610041, Peoples R China 5.Chinese Acad Forestry, Inst Wetland Res, Beijing 100091, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Jianqing,Huang, Xinya,Chen, Huai,et al. Homogeneous selection is stronger for fungi in deeper peat than in shallow peat in the low-temperature fens of China[J]. ENVIRONMENTAL RESEARCH,2022,212. |
| APA | Tian, Jianqing,Huang, Xinya,Chen, Huai,Kang, Xiaoming,&Wang, Yanfen.(2022).Homogeneous selection is stronger for fungi in deeper peat than in shallow peat in the low-temperature fens of China.ENVIRONMENTAL RESEARCH,212. |
| MLA | Tian, Jianqing,et al."Homogeneous selection is stronger for fungi in deeper peat than in shallow peat in the low-temperature fens of China".ENVIRONMENTAL RESEARCH 212(2022). |
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