DOI: 10.1111/ele.12815
Scopus记录号: 2-s2.0-85026440145
论文题名: Optimal metabolic regulation along resource stoichiometry gradients
作者: Manzoni S. ; Čapek P. ; Mooshammer M. ; Lindahl B.D. ; Richter A. ; Šantrůčková H.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2017
卷: 20, 期: 9 起始页码: 1182
结束页码: 1191
语种: 英语
英文关键词: Carbon use efficiency
; consumer
; ecological stoichiometry
; microbial biomass
; nitrogen
; nutrient limitation
; phosphorus
; stoichiometric model
Scopus关键词: Animalia
; carbon
; nitrogen
; phosphorus
; animal
; ecosystem
; Animals
; Carbon
; Ecosystem
; Nitrogen
; Phosphorus
英文摘要: Most heterotrophic organisms feed on substrates that are poor in nutrients compared to their demand, leading to elemental imbalances that may constrain their growth and function. Flexible carbon (C)-use efficiency (CUE, C used for growth over C taken up) can represent a strategy to reduce elemental imbalances. Here, we argue that metabolic regulation has evolved to maximise the organism growth rate along gradients of nutrient availability and translated this assumption into an optimality model that links CUE to substrate and organism stoichiometry. The optimal CUE is predicted to decrease with increasing substrate C-to-nutrient ratio, and increase with nutrient amendment. These predictions are generally confirmed by empirical evidence from a new database of c. 2200 CUE estimates, lending support to the hypothesis that CUE is optimised across levels of organisation (microorganisms and animals), in aquatic and terrestrial systems, and when considering nitrogen or phosphorus as limiting nutrients. © 2017 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107576
Appears in Collections: 气候减缓与适应
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作者单位: Department of Physical Geography and Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden; Department of Ecosystem Biology, University of South Bohemia, České Budějovice, Czech Republic; Department of Microbiology and Ecosystem Science, University of Vienna, Vienna, Austria; Department of Soil and Environment, Swedish University of Agricultural Sciences, Uppsala, Sweden
Recommended Citation:
Manzoni S.,Čapek P.,Mooshammer M.,et al. Optimal metabolic regulation along resource stoichiometry gradients[J]. Ecology Letters,2017-01-01,20(9)