Seasonal fluctuations and temperature dependence in photosynthetic parameters and stomatal conductance at the leaf scale of Populus euphratica Oliv.
Identifieur interne : 002D20 ( Main/Exploration ); précédent : 002D19; suivant : 002D21Seasonal fluctuations and temperature dependence in photosynthetic parameters and stomatal conductance at the leaf scale of Populus euphratica Oliv.
Auteurs : Gao-Feng Zhu [République populaire de Chine] ; Xin Li ; Yong-Hong Su ; Ling Lu ; Chun-Lin HuangSource :
- Tree physiology [ 1758-4469 ] ; 2011.
Descripteurs français
- KwdFr :
- MESH :
- Wicri :
- geographic : République populaire de Chine.
English descriptors
- KwdEn :
- MESH :
- geographic : China.
- metabolism : Plant Leaves, Plant Stomata, Populus.
- Bayes Theorem, Biological Transport, Models, Biological, Photosynthesis, Seasons, Temperature.
Abstract
A combined model to simulate CO₂ and H₂O gas exchange at the leaf scale was parameterized using data obtained from in situ leaf-scale observations of diurnal and seasonal changes in CO₂ and H₂O gas exchange. The Farquhar et al.-type model of photosynthesis was parameterized by using the Bayesian approach and the Ball et al.-type stomatal conductance model was optimized using the linear least-squares procedure. The results show that the seasonal physiological changes in photosynthetic parameters (e.g., V(cmax25), J(max25), R(d25) and g(m25)) in the biochemical model of photosynthesis and m in the stomatal conductance model should be counted in estimating long-term CO₂ and H₂O gas exchange. Overall, the coupled model successfully reproduced the observed response in net assimilation and transpiration rates.
DOI: 10.1093/treephys/tpr005
PubMed: 21411434
Affiliations:
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last="Su">Yong-Hong Su</name></author><author><name sortKey="Lu, Ling" sort="Lu, Ling" uniqKey="Lu L" first="Ling" last="Lu">Ling Lu</name></author><author><name sortKey="Huang, Chun Lin" sort="Huang, Chun Lin" uniqKey="Huang C" first="Chun-Lin" last="Huang">Chun-Lin Huang</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2011">2011</date><idno type="RBID">pubmed:21411434</idno><idno type="pmid">21411434</idno><idno type="doi">10.1093/treephys/tpr005</idno><idno type="wicri:Area/Main/Corpus">002E84</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002E84</idno><idno type="wicri:Area/Main/Curation">002E84</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">002E84</idno><idno type="wicri:Area/Main/Exploration">002E84</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Seasonal fluctuations and temperature dependence in photosynthetic parameters and stomatal conductance at the leaf scale of Populus euphratica Oliv.</title><author><name sortKey="Zhu, Gao Feng" sort="Zhu, Gao Feng" uniqKey="Zhu G" first="Gao-Feng" last="Zhu">Gao-Feng Zhu</name><affiliation wicri:level="1"><nlm:affiliation>Key Laboratory of Western China's Environmental Systems (Ministry of Education), Lanzhou University, Lanzhou, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Key Laboratory of Western China's Environmental Systems (Ministry of Education), Lanzhou University, Lanzhou</wicri:regionArea><wicri:noRegion>Lanzhou</wicri:noRegion></affiliation></author><author><name sortKey="Li, Xin" sort="Li, Xin" uniqKey="Li X" first="Xin" last="Li">Xin Li</name></author><author><name sortKey="Su, Yong Hong" sort="Su, Yong Hong" uniqKey="Su Y" first="Yong-Hong" last="Su">Yong-Hong Su</name></author><author><name sortKey="Lu, Ling" sort="Lu, Ling" uniqKey="Lu L" first="Ling" last="Lu">Ling 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(métabolisme)</term><term>Saisons (MeSH)</term><term>Stomates de plante (métabolisme)</term><term>Température (MeSH)</term><term>Théorème de Bayes (MeSH)</term><term>Transport biologique (MeSH)</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>China</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Plant Leaves</term><term>Plant Stomata</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Feuilles de plante</term><term>Populus</term><term>Stomates de plante</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Bayes Theorem</term><term>Biological Transport</term><term>Models, Biological</term><term>Photosynthesis</term><term>Seasons</term><term>Temperature</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Chine</term><term>Modèles biologiques</term><term>Photosynthèse</term><term>Saisons</term><term>Température</term><term>Théorème de Bayes</term><term>Transport biologique</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>République populaire de Chine</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A combined model to simulate CO₂ and H₂O gas exchange at the leaf scale was parameterized using data obtained from in situ leaf-scale observations of diurnal and seasonal changes in CO₂ and H₂O gas exchange. The Farquhar et al.-type model of photosynthesis was parameterized by using the Bayesian approach and the Ball et al.-type stomatal conductance model was optimized using the linear least-squares procedure. The results show that the seasonal physiological changes in photosynthetic parameters (e.g., V(cmax25), J(max25), R(d25) and g(m25)) in the biochemical model of photosynthesis and m in the stomatal conductance model should be counted in estimating long-term CO₂ and H₂O gas exchange. Overall, the coupled model successfully reproduced the observed response in net assimilation and transpiration rates.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">21411434</PMID><DateCompleted><Year>2011</Year><Month>09</Month><Day>12</Day></DateCompleted><DateRevised><Year>2011</Year><Month>03</Month><Day>31</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN><JournalIssue CitedMedium="Internet"><Volume>31</Volume><Issue>2</Issue><PubDate><Year>2011</Year><Month>Feb</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Seasonal fluctuations and temperature dependence in photosynthetic parameters and stomatal conductance at the leaf scale of Populus euphratica Oliv.</ArticleTitle><Pagination><MedlinePgn>178-95</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpr005</ELocationID><Abstract><AbstractText>A combined model to simulate CO₂ and H₂O gas exchange at the leaf scale was parameterized using data obtained from in situ leaf-scale observations of diurnal and seasonal changes in CO₂ and H₂O gas exchange. The Farquhar et al.-type model of photosynthesis was parameterized by using the Bayesian approach and the Ball et al.-type stomatal conductance model was optimized using the linear least-squares procedure. The results show that the seasonal physiological changes in photosynthetic parameters (e.g., V(cmax25), J(max25), R(d25) and g(m25)) in the biochemical model of photosynthesis and m in the stomatal conductance model should be counted in estimating long-term CO₂ and H₂O gas exchange. 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