24
IRUS TotalDownloads
Altmetric
A model of plant isoprene emission based on available reducing power captures responses to atmospheric CO2
File | Description | Size | Format | |
---|---|---|---|---|
Morfopoulos_MS_R3.1.docx | Accepted version | 173.55 kB | Microsoft Word | View/Open |
R3_Fig2.pdf | Supporting information | 824.22 kB | Adobe PDF | View/Open |
R3_Fig3.pdf | Supporting information | 1.67 MB | Adobe PDF | View/Open |
R3_Fig4.pdf | Supporting information | 1.12 MB | Adobe PDF | View/Open |
R3_Fig5.pdf | Supporting information | 1.35 MB | Adobe PDF | View/Open |
R3_Fig6.pdf | Supporting information | 747.18 kB | Adobe PDF | View/Open |
R3_Fig7.pdf | Supporting information | 823.07 kB | Adobe PDF | View/Open |
R3_Fig8.pdf | Supporting information | 1.52 MB | Adobe PDF | View/Open |
R3_Fig9.pdf | Supporting information | 820.93 kB | Adobe PDF | View/Open |
R3_Fig10.pdf | Supporting information | 792.98 kB | Adobe PDF | View/Open |
Title: | A model of plant isoprene emission based on available reducing power captures responses to atmospheric CO2 |
Authors: | Morfopoulos, C Sperlich, D Penuelas, J Filella, I Llusia, J Medlyn, BE Niinemets, U Possell, M Sun, Z Prentice, IC |
Item Type: | Journal Article |
Abstract: | 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 process‐based modelling of isoprene emissions by land vegetation at the ecosystem and global scales. |
Issue Date: | 1-Jul-2014 |
Date of Acceptance: | 1-Mar-2014 |
URI: | http://hdl.handle.net/10044/1/70436 |
DOI: | https://doi.org/10.1111/nph.12770 |
ISSN: | 0028-646X |
Publisher: | Wiley |
Start Page: | 125 |
End Page: | 139 |
Journal / Book Title: | New Phytologist |
Volume: | 203 |
Issue: | 1 |
Copyright Statement: | © 2014 Owner. This is the accepted version of the following article: Morfopoulos, C. , Sperlich, D. , Peñuelas, J. , Filella, I. , Llusià, J. , Medlyn, B. E., Niinemets, Ü. , Possell, M. , Sun, Z. and Prentice, I. C. (2014), A model of plant isoprene emission based on available reducing power captures responses to atmospheric CO2. New Phytol, 203: 125-139. doi:10.1111/nph.12770, which has been published in final form at https://doi.org/10.1111/nph.12770. |
Keywords: | Science & Technology Life Sciences & Biomedicine Plant Sciences black poplar (Populus nigra) hybrid aspen (Populus tremula x P. tremuloides) isoprene emission light response modelling photosynthetic electron transport quantum yield volatile compounds ASPEN LEAVES HYBRID ASPEN IN-VIVO TROPOSPHERIC CHEMISTRY VOLATILE ISOPRENOIDS TEMPERATURE RESPONSE SYNTHASE ACTIVITY RATE VARIABILITY CARBON-DIOXIDE CLIMATE-CHANGE black poplar (Populus nigra) hybrid aspen (Populus tremula × P. tremuloides) isoprene emission light response modelling photosynthetic electron transport quantum yield volatile compounds Butadienes Carbon Carbon Dioxide Hemiterpenes Models, Biological Pentanes Photosynthesis Plant Leaves Populus Populus Plant Leaves Carbon Dioxide Carbon Pentanes Butadienes Hemiterpenes Photosynthesis Models, Biological Science & Technology Life Sciences & Biomedicine Plant Sciences black poplar (Populus nigra) hybrid aspen (Populus tremula x P. tremuloides) isoprene emission light response modelling photosynthetic electron transport quantum yield volatile compounds ASPEN LEAVES HYBRID ASPEN IN-VIVO TROPOSPHERIC CHEMISTRY VOLATILE ISOPRENOIDS TEMPERATURE RESPONSE SYNTHASE ACTIVITY RATE VARIABILITY CARBON-DIOXIDE CLIMATE-CHANGE Plant Biology & Botany 06 Biological Sciences 07 Agricultural and Veterinary Sciences |
Publication Status: | Published |
Online Publication Date: | 2014-03-24 |
Appears in Collections: | Department of Life Sciences Grantham Institute for Climate Change |