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@article{Morfopoulos:2014:10.1111/nph.12770,
author = {Morfopoulos, C and Sperlich, D and Penuelas, J and Filella, I and Llusia, J and Medlyn, BE and Niinemets, U and Possell, M and Sun, Z and Prentice, IC},
doi = {10.1111/nph.12770},
journal = {New Phytologist},
pages = {125--139},
title = {A model of plant isoprene emission based on available reducing power captures responses to atmospheric CO2},
url = {http://dx.doi.org/10.1111/nph.12770},
volume = {203},
year = {2014}
}
TY - JOUR
AB - We present a unifying model for isoprene emission by photosynthesizing leaves based on the hypothesis that isoprene biosynthesis depends on a balance between the supply of photosynthetic reducing power and the demands of carbon fixation.We compared the predictions from our model, as well as from two other widely used models, with measurements of isoprene emission from leaves of Populus nigra and hybrid aspen (Populus tremula × P. tremuloides) in response to changes in leaf internal CO2 concentration (Ci) and photosynthetic photon flux density (PPFD) under diverse ambient CO2 concentrations (Ca).Our model reproduces the observed changes in isoprene emissions with Ci and PPFD, and also reproduces the tendency for the fraction of fixed carbon allocated to isoprene to increase with increasing PPFD. It also provides a simple mechanism for the previously unexplained decrease in the quantum efficiency of isoprene emission with increasing Ca.Experimental and modelled results support our hypothesis. Our model can reproduce the key features of the observations and has the potential to improve processbased modelling of isoprene emissions by land vegetation at the ecosystem and global scales.
AU - Morfopoulos,C
AU - Sperlich,D
AU - Penuelas,J
AU - Filella,I
AU - Llusia,J
AU - Medlyn,BE
AU - Niinemets,U
AU - Possell,M
AU - Sun,Z
AU - Prentice,IC
DO - 10.1111/nph.12770
EP - 139
PY - 2014///
SN - 0028-646X
SP - 125
TI - A model of plant isoprene emission based on available reducing power captures responses to atmospheric CO2
T2 - New Phytologist
UR - http://dx.doi.org/10.1111/nph.12770
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000336970200015&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/70436
VL - 203
ER -
Climate Science
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