气候变化领域集成服务门户(CCPortal): The impact of irradiance on optimal and cellular nitrogen to phosphorus ratios in phytoplankton

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DOI	10.1111/ele.12623
	The impact of irradiance on optimal and cellular nitrogen to phosphorus ratios in phytoplankton
	Thrane J.-E.; Hessen D.O.; Andersen T.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:8
英文摘要	Phytoplankton acclimates to irradiance by regulating the cellular content of light-harvesting complexes, which are nitrogen (N) rich and phosphorus (P) poor. Irradiance is thus hypothesised to influence the cellular N : P ratio and the N : P defining the threshold between N and P limitation (the 'optimal' N : P). We tested this hypothesis by first addressing the response of the optimal N : P to irradiance in a controlled experiment with Chlamydomonas reinhardtii. Then, we did a meta-analysis of experimental data on optimal and cellular N : P ratios across light gradients to test the generality of an N : P to light response within species. In both the experiment and the meta-analysis, N : P ratios decreased with irradiance, indicating that factors affecting underwater irradiance, like depth and the composition of the water, may influence the relative N : P requirement. The effect of irradiance did not differ between optimal and cellular N : P ratios, but observations of optimal N : P were on average 2.8 times higher than observations of cellular N : P. © 2016 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd.
英文关键词	Chlamydomonas reinhardtii; ecological stoichiometry; irradiance; light; nitrogen; N : P ratio; optimal N : P; phosphorus; Redfield ratio
学科领域	nitrogen; phosphorus; Chlamydomonas reinhardtii; light; meta analysis; metabolism; phytoplankton; radiation response; Chlamydomonas reinhardtii; Light; Nitrogen; Phosphorus; Phytoplankton; Chlamydomonas reinhardtii
语种	英语
scopus关键词	nitrogen; phosphorus; Chlamydomonas reinhardtii; light; meta analysis; metabolism; phytoplankton; radiation response; Chlamydomonas reinhardtii; Light; Nitrogen; Phosphorus; Phytoplankton; Chlamydomonas reinhardtii
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/118511
作者单位	Section for aquatic biology and toxicology (AQUA), Department of Biosciences, University of Oslo, P.O. Box 1066, Blindern, 0316, Oslo, Norway, Norway
推荐引用方式 GB/T 7714	Thrane J.-E.,Hessen D.O.,Andersen T.. The impact of irradiance on optimal and cellular nitrogen to phosphorus ratios in phytoplankton[J],2016,19(8).
APA	Thrane J.-E.,Hessen D.O.,&Andersen T..(2016).The impact of irradiance on optimal and cellular nitrogen to phosphorus ratios in phytoplankton.Ecology letters,19(8).
MLA	Thrane J.-E.,et al."The impact of irradiance on optimal and cellular nitrogen to phosphorus ratios in phytoplankton".Ecology letters 19.8(2016).