globalchange  > 全球变化的国际研究计划
DOI: 10.1016/j.tree.2015.09.006
论文题名:
Plant Thermoregulation: Energetics, Trait-Environment Interactions, and Carbon Economics
作者: Michaletz S.T.; Weiser M.D.; Zhou J.; Kaspari M.; Helliker B.R.; Enquist B.J.
刊名: Trends in Ecology and Evolution
ISSN: 1695347
出版年: 2015
卷: 30, 期:12
起始页码: 714
结束页码: 724
语种: 英语
Scopus关键词: carbon ; climate ; metabolism ; physiology ; plant ; plant development ; plant leaf ; plant physiology ; temperature ; Carbon ; Climate ; Plant Development ; Plant Leaves ; Plant Physiological Phenomena ; Plants ; Temperature
英文摘要: Building a more predictive trait-based ecology requires mechanistic theory based on first principles. We present a general theoretical approach to link traits and climate. We use plant leaves to show how energy budgets (i) provide a foundation for understanding thermoregulation, (ii) explain mechanisms driving trait variation across environmental gradients, and (iii) guide selection on functional traits via carbon economics. Although plants are often considered to be poikilotherms, the data suggest that they are instead limited homeotherms. Leaf functional traits that promote limited homeothermy are adaptive because homeothermy maximizes instantaneous and lifetime carbon gain. This theory provides a process-based foundation for trait-climate analyses and shows that future studies should consider plant (not only air) temperatures. Plants are generally considered to be poikilotherms that do not thermoregulate. However, empirical data show that plants are actually limited homeotherms that do thermoregulate.Plant thermoregulation and limited homeothermy decouples physiological functioning from climatic variation to promote metabolic homeostasis and maximize carbon assimilation and fitness.Energy budgets and carbon economics provide a mechanistic theory for understanding and predicting these relationships. Specifically, theory suggests that thermoregulation evolved via natural selection on traits to maximize lifetime carbon gain, growth, production, and fitness across climate gradients.Future studies need to consider plant tissue (and not only air) temperatures. © 2015.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67114
Appears in Collections:全球变化的国际研究计划
气候变化与战略

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作者单位: Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, United States; Earth and Environmental Sciences Division, Los Alamos National Laboratory, MS J495, Los Alamos, NM, United States; Department of Biology, EEB Graduate Program, University of Oklahoma, Norman, OK, United States; Institute for Environmental Genomics, Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, United States; State Key Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China; Earth Science Division, Lawrence Berkeley Laboratory, Berkeley, CA, United States; Smithsonian Tropical Research Institute, Balboa, Panama; Department of Biology, University of Pennsylvania, Philadelphia, PA, United States; The Santa Fe Institute USA, 1399 Hyde Park Road, Santa Fe, NM, United States; The iPlant Collaborative, Thomas W. Keating Bioresearch Building, 1657 East Helen Street, Tucson, AZ, United States; Aspen Center for Environmental Studies, 100 Puppy Smith Street, Aspen, CO, United States

Recommended Citation:
Michaletz S.T.,Weiser M.D.,Zhou J.,et al. Plant Thermoregulation: Energetics, Trait-Environment Interactions, and Carbon Economics[J]. Trends in Ecology and Evolution,2015-01-01,30(12)
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