DOI: 10.1111/ele.13840
论文题名: Systematic variation in the temperature dependence of bacterial carbon use efficiency
作者: Smith T.P. ; Clegg T. ; Bell T. ; Pawar S.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
语种: 英语
中文关键词: bacteria
; carbon use efficiency
; community
; maximum growth rate
; microbe
; respiration
; temperature
英文摘要: Carbon use efficiency (CUE) is a key characteristic of microbial physiology and underlies community-level responses to changing environments. Yet, we currently lack general empirical insights into variation in microbial CUE at the level of individual taxa. Here, through experiments with 29 strains of environmentally isolated bacteria, we find that bacterial CUE typically responds either positively to temperature, or has no discernible response, within biologically meaningful temperature ranges. Using a global data synthesis, we show that these results are generalisable across most culturable groups of bacteria. This variation in the thermal responses of bacterial CUE is taxonomically structured, and stems from the fact that relative to respiration rates, bacterial population growth rates typically respond more strongly to temperature, and are also subject to weaker evolutionary constraints. Our results provide new insights into microbial physiology, and a basis for more accurately modelling the effects of thermal fluctuations on complex microbial communities. © 2021 The Authors. Ecology Letters published by John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166930
Appears in Collections: 气候变化与战略
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作者单位: Department of Life Sciences, Imperial College London, Ascot, Berkshire, United Kingdom
Recommended Citation:
Smith T.P.,Clegg T.,Bell T.,et al. Systematic variation in the temperature dependence of bacterial carbon use efficiency[J]. Ecology Letters,2021-01-01