Microbial assemblies with distinct trophic strategies drive changes in soil microbial carbon use efficiency along vegetation primary succession in a glacier retreat area of the southeastern Tibetan Plateau
文献类型:期刊论文
作者 | Ma, Shenglan1,2; Zhu, Wanze2; Wang, Wenwu1,2; Li, Xia1,2; Sheng, Zheliang1,2 |
刊名 | SCIENCE OF THE TOTAL ENVIRONMENT |
出版日期 | 2023-04-01 |
卷号 | 867页码:10 |
ISSN号 | 0048-9697 |
关键词 | Soil microorganisms Trophic strategies Microbial carbon useefficiency 13C-labeled glucose Vegetation primary succession Tibetan Plateau |
DOI | 10.1016/j.scitotenv.2023.161587 |
英文摘要 | Soil microbial carbon use efficiency (CUE) is a vital physiological parameter in assessing carbon turnover. Yet, how the microbial assemblies with distinct trophic strategies regulate the soil microbial CUE remains elusive. Based on the oligotrophic-copiotrophic framework, we explored the role of microbial taxa with different trophic strategies in medi-ating microbial CUE (determined by a 13C-labeled approach) along the vegetation primary succession in Hailuogou glacier retreat area of the southeastern Tibetan Plateau. Results showed that soil microbial CUE ranged from 0.54 to 0.72 (averaging 0.62 +/- 0.01 across all samples) and increased staggeringly along the vegetation succession. Microbial assemblies with distinct trophic strategies were crucial regulators of soil microbial CUE. Specifically, microbial CUE increased with microbial oligotroph: copiotroph ratios, oligotroph-dominated stage had a higher microbial CUE than copiotroph-dominated ones. The prevalence of oligotrophic members would be the underlying microbial mech-anism for the high microbial CUE. Given that oligotrophs predominate in more recalcitrant carbon soils and their higher microbial CUE, we speculate that oligotrophs are likely to potentially enhance carbon sequestration in soils. In addition, the responses of the microbial CUE to fungal oligotroph: copiotroph ratios were higher than bacterial ones. Fungal taxa may play a dominant role in shaping microbial CUE relative to bacterial members. Overall, our results constructed close associations between microbial trophic strategies and CUE and provide direct evidence regarding how microbial trophic strategies regulate microbial CUE. This study is a significant step forward for elucidating the physiological mechanisms regulating microbial CUE and has significant implications for understanding microbial-mediated carbon cycling processes. |
WOS关键词 | BACTERIAL DOMINANCE ; COMMUNITY STRUCTURE ; ORGANIC-MATTER ; GROWTH ; CHRONOSEQUENCE ; STOICHIOMETRY ; FOREFIELD ; TURNOVER ; FORESTS ; SHIFTS |
资助项目 | National Key Research and Development Program[2017YFC0505004] ; Major Scientific and Technological Program of Sichuan Province[2018SZDZX0031] ; Institute of Mountain Hazards and Environment, CAS[SDS-135-1707] |
WOS研究方向 | Environmental Sciences & Ecology |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000997392100001 |
资助机构 | National Key Research and Development Program ; Major Scientific and Technological Program of Sichuan Province ; Institute of Mountain Hazards and Environment, CAS |
源URL | [http://ir.imde.ac.cn/handle/131551/57396] |
专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 综合测试与模拟中心 |
通讯作者 | Zhu, Wanze |
作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China |
推荐引用方式 GB/T 7714 | Ma, Shenglan,Zhu, Wanze,Wang, Wenwu,et al. Microbial assemblies with distinct trophic strategies drive changes in soil microbial carbon use efficiency along vegetation primary succession in a glacier retreat area of the southeastern Tibetan Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,867:10. |
APA | Ma, Shenglan,Zhu, Wanze,Wang, Wenwu,Li, Xia,&Sheng, Zheliang.(2023).Microbial assemblies with distinct trophic strategies drive changes in soil microbial carbon use efficiency along vegetation primary succession in a glacier retreat area of the southeastern Tibetan Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,867,10. |
MLA | Ma, Shenglan,et al."Microbial assemblies with distinct trophic strategies drive changes in soil microbial carbon use efficiency along vegetation primary succession in a glacier retreat area of the southeastern Tibetan Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 867(2023):10. |
入库方式: OAI收割
来源:成都山地灾害与环境研究所
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