气候变化领域集成服务门户(CCPortal): Rapid evolution of metabolic traits explains thermal adaptation in phytoplankton

CCPortal

DOI	10.1111/ele.12545
	Rapid evolution of metabolic traits explains thermal adaptation in phytoplankton
	Padfield D.; Yvon-Durocher G.; Buckling A.; Jennings S.; Yvon-Durocher G.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:2
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.
英文关键词	Carbon cycle; Metabolic theory; Phytoplankton; Rapid evolution
学科领域	adaptation; biomass allocation; carbon cycle; climate change; evolutionary biology; nutrient use efficiency; photosynthesis; phytoplankton; population growth; respiration; temperature tolerance; warming; Chlorella vulgaris
语种	英语
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
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/118590
作者单位	Environment and Sustainability Institute, University of Exeter, Penryn, TR10 9FE, United Kingdom; School of Biological and Chemical Sciences, Queen Mary University of London, London, E1 4NS, United Kingdom; Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, NR33 0HT, United Kingdom; School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
推荐引用方式 GB/T 7714	Padfield D.,Yvon-Durocher G.,Buckling A.,et al. Rapid evolution of metabolic traits explains thermal adaptation in phytoplankton[J],2016,19(2).
APA	Padfield D.,Yvon-Durocher G.,Buckling A.,Jennings S.,&Yvon-Durocher G..(2016).Rapid evolution of metabolic traits explains thermal adaptation in phytoplankton.Ecology Letters,19(2).
MLA	Padfield D.,et al."Rapid evolution of metabolic traits explains thermal adaptation in phytoplankton".Ecology Letters 19.2(2016).