globalchange  > 气候变化事实与影响
Scopus记录号: 2-s2.0-85058693861
论文题名:
Plastic and genetic responses of a common sedge to warming have contrasting effects on carbon cycle processes
作者: Walker T.W.N.; Weckwerth W.; Bragazza L.; Fragner L.; Forde B.G.; Ostle N.J.; Signarbieux C.; Sun X.; Ward S.E.; Bardgett R.D.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2019
卷: 22, 期:1
起始页码: 159
结束页码: 169
语种: 英语
英文关键词: Carbon cycle ; climate feedbacks ; climate warming ; Eriophorum vaginatum ; genetic adaptation ; intraspecific variation ; natural selection ; phenotypic plasticity ; plant ecophysiology ; plant metabolism
Scopus关键词: Eriophorum vaginatum
英文摘要: Climate warming affects plant physiology through genetic adaptation and phenotypic plasticity, but little is known about how these mechanisms influence ecosystem processes. We used three elevation gradients and a reciprocal transplant experiment to show that temperature causes genetic change in the sedge Eriophorum vaginatum. We demonstrate that plants originating from warmer climate produce fewer secondary compounds, grow faster and accelerate carbon dioxide (CO 2 ) release to the atmosphere. However, warmer climate also caused plasticity in E. vaginatum, inhibiting nitrogen metabolism, photosynthesis and growth and slowing CO 2 release into the atmosphere. Genetic differentiation and plasticity in E. vaginatum thus had opposing effects on CO 2 fluxes, suggesting that warming over many generations may buffer, or reverse, the short-term influence of this species over carbon cycle processes. Our findings demonstrate the capacity for plant evolution to impact ecosystem processes, and reveal a further mechanism through which plants will shape ecosystem responses to climate change. © 2018 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122763
Appears in Collections:气候变化事实与影响

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作者单位: School of Earth and Environmental Sciences, The University of Manchester, Manchester, M13 9PL, United Kingdom; Centre for Ecology and Hydrology, Lancaster, LA1 4AP, United Kingdom; Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, United Kingdom; Department of Ecogenomics & Systems Biology, University of Vienna, Vienna, 1090, Austria; Vienna Metabolomics Centre (VIME), University of Vienna, Vienna, 1090, Austria; Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Lausanne, 1015, Switzerland; Ecological Systems Laboratory (ECOS), École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, 1015, Switzerland; Department of Life Science and Biotechnologies, University of Ferrara, Ferrara, 44100, Italy

Recommended Citation:
Walker T.W.N.,Weckwerth W.,Bragazza L.,et al. Plastic and genetic responses of a common sedge to warming have contrasting effects on carbon cycle processes[J]. Ecology Letters,2019-01-01,22(1)
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