A model of plant isoprene emission based on available reducing power captures responses to atmospheric CO₂.
Identifieur interne : 002398 ( Main/Exploration ); précédent : 002397; suivant : 002399A model of plant isoprene emission based on available reducing power captures responses to atmospheric CO₂.
Auteurs : Catherine Morfopoulos [Royaume-Uni] ; Dominik Sperlich ; Josep Pe Uelas ; Iolanda Filella ; Joan Llusià ; Belinda E. Medlyn ; Ülo Niinemets ; Malcolm Possell ; Zhihong Sun ; Iain Colin PrenticeSource :
- The New phytologist [ 1469-8137 ] ; 2014.
Descripteurs français
- KwdFr :
- MESH :
- biosynthèse : Hémiterpènes.
- métabolisme : Carbone, Dioxyde de carbone.
- physiologie : Feuilles de plante, Populus.
- Butadiènes, Modèles biologiques, Pentanes, Photosynthèse.
English descriptors
- KwdEn :
- MESH :
- chemical , biosynthesis : Hemiterpenes.
- chemical , metabolism : Carbon, Carbon Dioxide.
- chemical : Butadienes, Pentanes.
- physiology : Plant Leaves, Populus.
- Models, Biological, Photosynthesis.
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 (C(i)) and photosynthetic photon flux density (PPFD) under diverse ambient CO2 concentrations (C(a)). Our model reproduces the observed changes in isoprene emissions with C(i) 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 C(a). 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.
DOI: 10.1111/nph.12770
PubMed: 24661143
Affiliations:
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Medlyn</name></author><author><name sortKey="Niinemets, Ulo" sort="Niinemets, Ulo" uniqKey="Niinemets U" first="Ülo" last="Niinemets">Ülo Niinemets</name></author><author><name sortKey="Possell, Malcolm" sort="Possell, Malcolm" uniqKey="Possell M" first="Malcolm" last="Possell">Malcolm Possell</name></author><author><name sortKey="Sun, Zhihong" sort="Sun, Zhihong" uniqKey="Sun Z" first="Zhihong" last="Sun">Zhihong Sun</name></author><author><name sortKey="Prentice, Iain Colin" sort="Prentice, Iain Colin" uniqKey="Prentice I" first="Iain Colin" last="Prentice">Iain Colin Prentice</name></author></analytic><series><title level="j">The New phytologist</title><idno type="eISSN">1469-8137</idno><imprint><date when="2014" type="published">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Butadienes (MeSH)</term><term>Carbon (metabolism)</term><term>Carbon Dioxide (metabolism)</term><term>Hemiterpenes (biosynthesis)</term><term>Models, Biological (MeSH)</term><term>Pentanes (MeSH)</term><term>Photosynthesis (MeSH)</term><term>Plant Leaves (physiology)</term><term>Populus (physiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Butadiènes (MeSH)</term><term>Carbone (métabolisme)</term><term>Dioxyde de carbone (métabolisme)</term><term>Feuilles de plante (physiologie)</term><term>Hémiterpènes (biosynthèse)</term><term>Modèles biologiques (MeSH)</term><term>Pentanes (MeSH)</term><term>Photosynthèse (MeSH)</term><term>Populus (physiologie)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="biosynthesis" xml:lang="en"><term>Hemiterpenes</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Carbon</term><term>Carbon Dioxide</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Butadienes</term><term>Pentanes</term></keywords><keywords scheme="MESH" qualifier="biosynthèse" xml:lang="fr"><term>Hémiterpènes</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Carbone</term><term>Dioxyde de carbone</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Feuilles de plante</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Plant Leaves</term><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Models, Biological</term><term>Photosynthesis</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Butadiènes</term><term>Modèles biologiques</term><term>Pentanes</term><term>Photosynthèse</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">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 (C(i)) and photosynthetic photon flux density (PPFD) under diverse ambient CO2 concentrations (C(a)). Our model reproduces the observed changes in isoprene emissions with C(i) 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 C(a). 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.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">24661143</PMID><DateCompleted><Year>2015</Year><Month>02</Month><Day>12</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1469-8137</ISSN><JournalIssue CitedMedium="Internet"><Volume>203</Volume><Issue>1</Issue><PubDate><Year>2014</Year><Month>Jul</Month></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>A model of plant isoprene emission based on available reducing power captures responses to atmospheric CO₂.</ArticleTitle><Pagination><MedlinePgn>125-39</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/nph.12770</ELocationID><Abstract><AbstractText>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 (C(i)) and photosynthetic photon flux density (PPFD) under diverse ambient CO2 concentrations (C(a)). Our model reproduces the observed changes in isoprene emissions with C(i) 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 C(a). 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.</AbstractText><CopyrightInformation>© 2014 The Authors. New Phytologist © 2014 New Phytologist Trust.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Morfopoulos</LastName><ForeName>Catherine</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>Department of Life Sciences, Imperial College, Silwood Park, Ascot, SL5 7PY, UK.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Sperlich</LastName><ForeName>Dominik</ForeName><Initials>D</Initials></Author><Author ValidYN="Y"><LastName>Peñuelas</LastName><ForeName>Josep</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Filella</LastName><ForeName>Iolanda</ForeName><Initials>I</Initials></Author><Author ValidYN="Y"><LastName>Llusià</LastName><ForeName>Joan</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Medlyn</LastName><ForeName>Belinda E</ForeName><Initials>BE</Initials></Author><Author ValidYN="Y"><LastName>Niinemets</LastName><ForeName>Ülo</ForeName><Initials>Ü</Initials></Author><Author ValidYN="Y"><LastName>Possell</LastName><ForeName>Malcolm</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Sun</LastName><ForeName>Zhihong</ForeName><Initials>Z</Initials></Author><Author ValidYN="Y"><LastName>Prentice</LastName><ForeName>Iain Colin</ForeName><Initials>IC</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2014</Year><Month>03</Month><Day>24</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>New Phytol</MedlineTA><NlmUniqueID>9882884</NlmUniqueID><ISSNLinking>0028-646X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D002070">Butadienes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D045782">Hemiterpenes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010420">Pentanes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0A62964IBU</RegistryNumber><NameOfSubstance UI="C005059">isoprene</NameOfSubstance></Chemical><Chemical><RegistryNumber>142M471B3J</RegistryNumber><NameOfSubstance UI="D002245">Carbon Dioxide</NameOfSubstance></Chemical><Chemical><RegistryNumber>7440-44-0</RegistryNumber><NameOfSubstance UI="D002244">Carbon</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002070" MajorTopicYN="N">Butadienes</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002244" MajorTopicYN="N">Carbon</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002245" MajorTopicYN="N">Carbon Dioxide</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D045782" MajorTopicYN="N">Hemiterpenes</DescriptorName><QualifierName UI="Q000096" MajorTopicYN="Y">biosynthesis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008954" MajorTopicYN="N">Models, Biological</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010420" MajorTopicYN="N">Pentanes</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010788" MajorTopicYN="Y">Photosynthesis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">black poplar (Populus nigra)</Keyword><Keyword MajorTopicYN="N">hybrid aspen (Populus tremula × P. tremuloides)</Keyword><Keyword MajorTopicYN="N">isoprene emission</Keyword><Keyword MajorTopicYN="N">light response</Keyword><Keyword MajorTopicYN="N">modelling</Keyword><Keyword MajorTopicYN="N">photosynthetic electron transport</Keyword><Keyword MajorTopicYN="N">quantum yield</Keyword><Keyword MajorTopicYN="N">volatile compounds</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2013</Year><Month>11</Month><Day>15</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2014</Year><Month>02</Month><Day>11</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2014</Year><Month>3</Month><Day>26</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2014</Year><Month>3</Month><Day>26</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2015</Year><Month>2</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">24661143</ArticleId><ArticleId IdType="doi">10.1111/nph.12770</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Royaume-Uni</li></country></list><tree><noCountry><name sortKey="Filella, Iolanda" sort="Filella, Iolanda" uniqKey="Filella I" first="Iolanda" last="Filella">Iolanda Filella</name><name sortKey="Llusia, Joan" sort="Llusia, Joan" uniqKey="Llusia J" first="Joan" last="Llusià">Joan Llusià</name><name sortKey="Medlyn, Belinda E" sort="Medlyn, Belinda E" uniqKey="Medlyn B" first="Belinda E" last="Medlyn">Belinda E. Medlyn</name><name sortKey="Niinemets, Ulo" sort="Niinemets, Ulo" uniqKey="Niinemets U" first="Ülo" last="Niinemets">Ülo Niinemets</name><name sortKey="Pe Uelas, Josep" sort="Pe Uelas, Josep" uniqKey="Pe Uelas J" first="Josep" last="Pe Uelas">Josep Pe Uelas</name><name sortKey="Possell, Malcolm" sort="Possell, Malcolm" uniqKey="Possell M" first="Malcolm" last="Possell">Malcolm Possell</name><name sortKey="Prentice, Iain Colin" sort="Prentice, Iain Colin" uniqKey="Prentice I" first="Iain Colin" last="Prentice">Iain Colin Prentice</name><name sortKey="Sperlich, Dominik" sort="Sperlich, Dominik" uniqKey="Sperlich D" first="Dominik" last="Sperlich">Dominik Sperlich</name><name sortKey="Sun, Zhihong" sort="Sun, Zhihong" uniqKey="Sun Z" first="Zhihong" last="Sun">Zhihong Sun</name></noCountry><country name="Royaume-Uni"><noRegion><name sortKey="Morfopoulos, Catherine" sort="Morfopoulos, Catherine" uniqKey="Morfopoulos C" first="Catherine" last="Morfopoulos">Catherine Morfopoulos</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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