DOI: 10.1111/ele.12623
Scopus记录号: 2-s2.0-84978091724
论文题名: The impact of irradiance on optimal and cellular nitrogen to phosphorus ratios in phytoplankton
作者: Thrane J.-E. ; Hessen D.O. ; Andersen T.
刊名: Ecology letters
ISSN: 14610248
EISSN: 1461-0248
出版年: 2016
卷: 19, 期: 8 起始页码: 880
结束页码: 888
语种: 英语
英文关键词: Chlamydomonas reinhardtii
; ecological stoichiometry
; irradiance
; light
; nitrogen
; N : P ratio
; optimal N : P
; phosphorus
; Redfield ratio
Scopus关键词: nitrogen
; phosphorus
; Chlamydomonas reinhardtii
; light
; meta analysis
; metabolism
; phytoplankton
; radiation response
; Chlamydomonas reinhardtii
; Light
; Nitrogen
; Phosphorus
; Phytoplankton
; Chlamydomonas reinhardtii
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107739
Appears in Collections: 气候减缓与适应
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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
Recommended Citation:
Thrane J.-E.,Hessen D.O.,Andersen T.. The impact of irradiance on optimal and cellular nitrogen to phosphorus ratios in phytoplankton[J]. Ecology letters,2016-01-01,19(8)