DOI: 10.1111/ele.12545
Scopus记录号: 2-s2.0-84953367021
论文题名: Rapid evolution of metabolic traits explains thermal adaptation in phytoplankton
作者: Padfield D. ; Yvon-Durocher G. ; Buckling A. ; Jennings S. ; Yvon-Durocher G.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
卷: 19, 期: 2 起始页码: 133
结束页码: 142
语种: 英语
英文关键词: Carbon cycle
; Metabolic theory
; Phytoplankton
; Rapid evolution
Scopus关键词: adaptation
; biomass allocation
; carbon cycle
; climate change
; evolutionary biology
; nutrient use efficiency
; photosynthesis
; phytoplankton
; population growth
; respiration
; temperature tolerance
; warming
; Chlorella vulgaris
英文摘要: Understanding the mechanisms that determine how phytoplankton adapt to warming will substantially improve the realism of models describing ecological and biogeochemical effects of climate change. Here, we quantify the evolution of elevated thermal tolerance in the phytoplankton, Chlorella vulgaris. Initially, population growth was limited at higher temperatures because respiration was more sensitive to temperature than photosynthesis meaning less carbon was available for growth. Tolerance to high temperature evolved after ≈ 100 generations via greater down-regulation of respiration relative to photosynthesis. By down-regulating respiration, phytoplankton overcame the metabolic constraint imposed by the greater temperature sensitivity of respiration and more efficiently allocated fixed carbon to growth. Rapid evolution of carbon-use efficiency provides a potentially general mechanism for thermal adaptation in phytoplankton and implies that evolutionary responses in phytoplankton will modify biogeochemical cycles and hence food web structure and function under warming. Models of climate futures that ignore adaptation would usefully be revisited. Copyright © 2016 John Wiley & Sons Ltd/CNRS. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107806
Appears in Collections: 气候减缓与适应
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作者单位: Environment and Sustainability Institute, University of Exeter, Penryn, United Kingdom; School of Biological and Chemical Sciences, Queen Mary University of London, London, United Kingdom; Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, United Kingdom; School of Environmental Sciences, University of East Anglia, Norwich, United Kingdom
Recommended Citation:
Padfield D.,Yvon-Durocher G.,Buckling A.,et al. Rapid evolution of metabolic traits explains thermal adaptation in phytoplankton[J]. Ecology Letters,2016-01-01,19(2)