气候变化领域集成服务门户(CCPortal): Optimal metabolic regulation along resource stoichiometry gradients

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DOI	10.1111/ele.12815
	Optimal metabolic regulation along resource stoichiometry gradients
	Manzoni S.; Čapek P.; Mooshammer M.; Lindahl B.D.; Richter A.; Šantrůčková H.
发表日期	2017
ISSN	1461-023X
EISSN	1461-0248
卷号	20 期号:9
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
英文关键词	Carbon use efficiency; consumer; ecological stoichiometry; microbial biomass; nitrogen; nutrient limitation; phosphorus; stoichiometric model
学科领域	Animalia; carbon; nitrogen; phosphorus; animal; ecosystem; Animals; Carbon; Ecosystem; Nitrogen; Phosphorus
语种	英语
scopus关键词	Animalia; carbon; nitrogen; phosphorus; animal; ecosystem; Animals; Carbon; Ecosystem; Nitrogen; Phosphorus
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118337
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
推荐引用方式 GB/T 7714	Manzoni S.,Čapek P.,Mooshammer M.,et al. Optimal metabolic regulation along resource stoichiometry gradients[J],2017,20(9).
APA	Manzoni S.,Čapek P.,Mooshammer M.,Lindahl B.D.,Richter A.,&Šantrůčková H..(2017).Optimal metabolic regulation along resource stoichiometry gradients.Ecology Letters,20(9).
MLA	Manzoni S.,et al."Optimal metabolic regulation along resource stoichiometry gradients".Ecology Letters 20.9(2017).