Sensitivity of plants to changing atmospheric CO2 concentration : from the geological past to the next century

© 2013 The Author. New Phytologist © 2012 New Phytologist Trust.

Détails bibliographiques
Publié dans:The New phytologist. - 1990. - 197(2013), 4 vom: 26. März, Seite 1077-1094
Auteur principal: Franks, Peter J (Auteur)
Autres auteurs: Adams, Mark A, Amthor, Jeffrey S, Barbour, Margaret M, Berry, Joseph A, Ellsworth, David S, Farquhar, Graham D, Ghannoum, Oula, Lloyd, Jon, McDowell, Nate, Norby, Richard J, Tissue, David T, von Caemmerer, Susanne
Format: Article en ligne
Langue:English
Publié: 2013
Accès à la collection:The New phytologist
Sujets:Journal Article Research Support, Non-U.S. Gov't Review Water 059QF0KO0R Carbon Dioxide 142M471B3J
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100 1 |a Franks, Peter J  |e verfasserin  |4 aut 
245 1 0 |a Sensitivity of plants to changing atmospheric CO2 concentration  |b from the geological past to the next century 
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520 |a The rate of CO(2) assimilation by plants is directly influenced by the concentration of CO(2) in the atmosphere, c(a). As an environmental variable, c(a) also has a unique global and historic significance. Although relatively stable and uniform in the short term, global c(a) has varied substantially on the timescale of thousands to millions of years, and currently is increasing at seemingly an unprecedented rate. This may exert profound impacts on both climate and plant function. Here we utilise extensive datasets and models to develop an integrated, multi-scale assessment of the impact of changing c(a) on plant carbon dioxide uptake and water use. We find that, overall, the sensitivity of plants to rising or falling c(a) is qualitatively similar across all scales considered. It is characterised by an adaptive feedback response that tends to maintain 1 - c(i)/c(a), the relative gradient for CO(2) diffusion into the leaf, relatively constant. This is achieved through predictable adjustments to stomatal anatomy and chloroplast biochemistry. Importantly, the long-term response to changing c(a) can be described by simple equations rooted in the formulation of more commonly studied short-term responses 
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700 1 |a Adams, Mark A  |e verfasserin  |4 aut 
700 1 |a Amthor, Jeffrey S  |e verfasserin  |4 aut 
700 1 |a Barbour, Margaret M  |e verfasserin  |4 aut 
700 1 |a Berry, Joseph A  |e verfasserin  |4 aut 
700 1 |a Ellsworth, David S  |e verfasserin  |4 aut 
700 1 |a Farquhar, Graham D  |e verfasserin  |4 aut 
700 1 |a Ghannoum, Oula  |e verfasserin  |4 aut 
700 1 |a Lloyd, Jon  |e verfasserin  |4 aut 
700 1 |a McDowell, Nate  |e verfasserin  |4 aut 
700 1 |a Norby, Richard J  |e verfasserin  |4 aut 
700 1 |a Tissue, David T  |e verfasserin  |4 aut 
700 1 |a von Caemmerer, Susanne  |e verfasserin  |4 aut 
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