Developmental changes in mesophyll diffusion conductance and photosynthetic capacity under different light and water availabilities in Populus tremula: how structure constrains function.
Identifieur interne : 002B33 ( Main/Exploration ); précédent : 002B32; suivant : 002B34Developmental changes in mesophyll diffusion conductance and photosynthetic capacity under different light and water availabilities in Populus tremula: how structure constrains function.
Auteurs : Tiina Tosens [Espagne] ; Ulo Niinemets ; Vivian Vislap ; Hillar Eichelmann ; Pilar Castro DíezSource :
- Plant, cell & environment [ 1365-3040 ] ; 2012.
Descripteurs français
- KwdFr :
- Cellules du mésophylle (métabolisme), Chloroplastes (métabolisme), Diffusion (MeSH), Dioxyde de carbone (métabolisme), Déshydratation (MeSH), Eau (métabolisme), Facteurs temps (MeSH), Feuilles de plante (croissance et développement), Feuilles de plante (effets des radiations), Feuilles de plante (physiologie), Feuilles de plante (ultrastructure), Lumière (MeSH), Modèles biologiques (MeSH), Paroi cellulaire (métabolisme), Photosynthèse (physiologie), Populus (croissance et développement), Populus (effets des radiations), Populus (physiologie), Populus (ultrastructure), Stomates de plante (physiologie), Stress physiologique (physiologie), Transpiration des plantes (physiologie).
- MESH :
- croissance et développement : Feuilles de plante, Populus.
- effets des radiations : Feuilles de plante, Populus.
- métabolisme : Cellules du mésophylle, Chloroplastes, Dioxyde de carbone, Eau, Paroi cellulaire.
- physiologie : Feuilles de plante, Photosynthèse, Populus, Stomates de plante, Stress physiologique, Transpiration des plantes.
- ultrastructure : Diffusion, Déshydratation, Facteurs temps, Feuilles de plante, Lumière, Modèles biologiques, Populus.
English descriptors
- KwdEn :
- Carbon Dioxide (metabolism), Cell Wall (metabolism), Chloroplasts (metabolism), Dehydration (MeSH), Diffusion (MeSH), Light (MeSH), Mesophyll Cells (metabolism), Models, Biological (MeSH), Photosynthesis (physiology), Plant Leaves (growth & development), Plant Leaves (physiology), Plant Leaves (radiation effects), Plant Leaves (ultrastructure), Plant Stomata (physiology), Plant Transpiration (physiology), Populus (growth & development), Populus (physiology), Populus (radiation effects), Populus (ultrastructure), Stress, Physiological (physiology), Time Factors (MeSH), Water (metabolism).
- MESH :
- chemical , metabolism : Carbon Dioxide, Water.
- growth & development : Plant Leaves, Populus.
- metabolism : Cell Wall, Chloroplasts, Mesophyll Cells.
- physiology : Photosynthesis, Plant Leaves, Plant Stomata, Plant Transpiration, Populus, Stress, Physiological.
- radiation effects : Plant Leaves, Populus.
- ultrastructure : Plant Leaves, Populus.
- Dehydration, Diffusion, Light, Models, Biological, Time Factors.
Abstract
Finite mesophyll diffusion conductance (g(m) ) significantly constrains net assimilation rate (A(n) ), but g(m) variations and variation sources in response to environmental stresses during leaf development are imperfectly known. The combined effects of light and water limitations on g(m) and diffusion limitations of photosynthesis were studied in saplings of Populus tremula L. An one-dimensional diffusion model was used to gain insight into the importance of key anatomical traits in determining g(m) . Leaf development was associated with increases in dry mass per unit area, thickness, density, exposed mesophyll (S(mes) /S) and chloroplast (S(c) /S) to leaf area ratio, internal air space (f(ias) ), cell wall thickness and chloroplast dimensions. Development of S(mes) /S and S(c) /S was delayed under low light. Reduction in light availability was associated with lower S(c) /S, but with larger f(ias) and chloroplast thickness. Water stress reduced S(c) /S and increased cell wall thickness under high light. In all treatments, g(m) and A(n) increased and CO(2) drawdown because of g(m) , C(i) -C(c) , decreased with increasing leaf age. Low light and drought resulted in reduced g(m) and A(n) and increased C(i) -C(c) . These results emphasize the importance of g(m) and its components in determining A(n) variations during leaf development and in response to stress.
DOI: 10.1111/j.1365-3040.2011.02457.x
PubMed: 22070625
Affiliations:
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(MeSH)</term><term>Mesophyll Cells (metabolism)</term><term>Models, Biological (MeSH)</term><term>Photosynthesis (physiology)</term><term>Plant Leaves (growth & development)</term><term>Plant Leaves (physiology)</term><term>Plant Leaves (radiation effects)</term><term>Plant Leaves (ultrastructure)</term><term>Plant Stomata (physiology)</term><term>Plant Transpiration (physiology)</term><term>Populus (growth & development)</term><term>Populus (physiology)</term><term>Populus (radiation effects)</term><term>Populus (ultrastructure)</term><term>Stress, Physiological (physiology)</term><term>Time Factors (MeSH)</term><term>Water (metabolism)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Cellules du mésophylle (métabolisme)</term><term>Chloroplastes (métabolisme)</term><term>Diffusion (MeSH)</term><term>Dioxyde de carbone (métabolisme)</term><term>Déshydratation (MeSH)</term><term>Eau (métabolisme)</term><term>Facteurs temps (MeSH)</term><term>Feuilles de plante (croissance et développement)</term><term>Feuilles de plante (effets des radiations)</term><term>Feuilles de plante (physiologie)</term><term>Feuilles de plante (ultrastructure)</term><term>Lumière (MeSH)</term><term>Modèles biologiques (MeSH)</term><term>Paroi cellulaire (métabolisme)</term><term>Photosynthèse (physiologie)</term><term>Populus (croissance et développement)</term><term>Populus (effets des radiations)</term><term>Populus (physiologie)</term><term>Populus (ultrastructure)</term><term>Stomates de plante (physiologie)</term><term>Stress physiologique (physiologie)</term><term>Transpiration des plantes (physiologie)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Carbon Dioxide</term><term>Water</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Feuilles de plante</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="effets des radiations" xml:lang="fr"><term>Feuilles de plante</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Plant Leaves</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Cell Wall</term><term>Chloroplasts</term><term>Mesophyll Cells</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Cellules du mésophylle</term><term>Chloroplastes</term><term>Dioxyde de carbone</term><term>Eau</term><term>Paroi cellulaire</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Feuilles de plante</term><term>Photosynthèse</term><term>Populus</term><term>Stomates de plante</term><term>Stress physiologique</term><term>Transpiration des plantes</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Photosynthesis</term><term>Plant Leaves</term><term>Plant Stomata</term><term>Plant Transpiration</term><term>Populus</term><term>Stress, Physiological</term></keywords><keywords scheme="MESH" qualifier="radiation effects" xml:lang="en"><term>Plant Leaves</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="en"><term>Plant Leaves</term><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Dehydration</term><term>Diffusion</term><term>Light</term><term>Models, Biological</term><term>Time Factors</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="fr"><term>Diffusion</term><term>Déshydratation</term><term>Facteurs temps</term><term>Feuilles de plante</term><term>Lumière</term><term>Modèles biologiques</term><term>Populus</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Finite mesophyll diffusion conductance (g(m) ) significantly constrains net assimilation rate (A(n) ), but g(m) variations and variation sources in response to environmental stresses during leaf development are imperfectly known. The combined effects of light and water limitations on g(m) and diffusion limitations of photosynthesis were studied in saplings of Populus tremula L. An one-dimensional diffusion model was used to gain insight into the importance of key anatomical traits in determining g(m) . Leaf development was associated with increases in dry mass per unit area, thickness, density, exposed mesophyll (S(mes) /S) and chloroplast (S(c) /S) to leaf area ratio, internal air space (f(ias) ), cell wall thickness and chloroplast dimensions. Development of S(mes) /S and S(c) /S was delayed under low light. Reduction in light availability was associated with lower S(c) /S, but with larger f(ias) and chloroplast thickness. Water stress reduced S(c) /S and increased cell wall thickness under high light. In all treatments, g(m) and A(n) increased and CO(2) drawdown because of g(m) , C(i) -C(c) , decreased with increasing leaf age. Low light and drought resulted in reduced g(m) and A(n) and increased C(i) -C(c) . These results emphasize the importance of g(m) and its components in determining A(n) variations during leaf development and in response to stress.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">22070625</PMID><DateCompleted><Year>2012</Year><Month>08</Month><Day>09</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-3040</ISSN><JournalIssue CitedMedium="Internet"><Volume>35</Volume><Issue>5</Issue><PubDate><Year>2012</Year><Month>May</Month></PubDate></JournalIssue><Title>Plant, cell & environment</Title><ISOAbbreviation>Plant Cell Environ</ISOAbbreviation></Journal><ArticleTitle>Developmental changes in mesophyll diffusion conductance and photosynthetic capacity under different light and water availabilities in Populus tremula: how structure constrains function.</ArticleTitle><Pagination><MedlinePgn>839-56</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-3040.2011.02457.x</ELocationID><Abstract><AbstractText>Finite mesophyll diffusion conductance (g(m) ) significantly constrains net assimilation rate (A(n) ), but g(m) variations and variation sources in response to environmental stresses during leaf development are imperfectly known. The combined effects of light and water limitations on g(m) and diffusion limitations of photosynthesis were studied in saplings of Populus tremula L. An one-dimensional diffusion model was used to gain insight into the importance of key anatomical traits in determining g(m) . Leaf development was associated with increases in dry mass per unit area, thickness, density, exposed mesophyll (S(mes) /S) and chloroplast (S(c) /S) to leaf area ratio, internal air space (f(ias) ), cell wall thickness and chloroplast dimensions. Development of S(mes) /S and S(c) /S was delayed under low light. Reduction in light availability was associated with lower S(c) /S, but with larger f(ias) and chloroplast thickness. Water stress reduced S(c) /S and increased cell wall thickness under high light. In all treatments, g(m) and A(n) increased and CO(2) drawdown because of g(m) , C(i) -C(c) , decreased with increasing leaf age. Low light and drought resulted in reduced g(m) and A(n) and increased C(i) -C(c) . These results emphasize the importance of g(m) and its components in determining A(n) variations during leaf development and in response to stress.</AbstractText><CopyrightInformation>© 2011 Blackwell Publishing Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Tosens</LastName><ForeName>Tiina</ForeName><Initials>T</Initials><AffiliationInfo><Affiliation>Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51014, Estonia, Spain. tiina.tosens@emu.ee</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Niinemets</LastName><ForeName>Ulo</ForeName><Initials>U</Initials></Author><Author ValidYN="Y"><LastName>Vislap</LastName><ForeName>Vivian</ForeName><Initials>V</Initials></Author><Author ValidYN="Y"><LastName>Eichelmann</LastName><ForeName>Hillar</ForeName><Initials>H</Initials></Author><Author ValidYN="Y"><LastName>Castro Díez</LastName><ForeName>Pilar</ForeName><Initials>P</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>2011</Year><Month>12</Month><Day>04</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Cell Environ</MedlineTA><NlmUniqueID>9309004</NlmUniqueID><ISSNLinking>0140-7791</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical><Chemical><RegistryNumber>142M471B3J</RegistryNumber><NameOfSubstance UI="D002245">Carbon Dioxide</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002245" MajorTopicYN="N">Carbon Dioxide</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002473" MajorTopicYN="N">Cell Wall</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002736" MajorTopicYN="N">Chloroplasts</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003681" MajorTopicYN="N">Dehydration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004058" MajorTopicYN="N">Diffusion</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008027" MajorTopicYN="Y">Light</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D058503" MajorTopicYN="N">Mesophyll Cells</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008954" MajorTopicYN="N">Models, Biological</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010788" MajorTopicYN="N">Photosynthesis</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName><QualifierName UI="Q000528" MajorTopicYN="N">radiation effects</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D054046" MajorTopicYN="N">Plant Stomata</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018526" MajorTopicYN="N">Plant Transpiration</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName><QualifierName UI="Q000528" MajorTopicYN="N">radiation effects</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013312" MajorTopicYN="N">Stress, Physiological</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013997" MajorTopicYN="N">Time Factors</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>11</Month><Day>11</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>11</Month><Day>11</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2012</Year><Month>8</Month><Day>10</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">22070625</ArticleId><ArticleId IdType="doi">10.1111/j.1365-3040.2011.02457.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Espagne</li></country></list><tree><noCountry><name sortKey="Castro Diez, Pilar" sort="Castro Diez, Pilar" uniqKey="Castro Diez P" first="Pilar" last="Castro Díez">Pilar Castro Díez</name><name sortKey="Eichelmann, Hillar" sort="Eichelmann, Hillar" uniqKey="Eichelmann H" first="Hillar" last="Eichelmann">Hillar Eichelmann</name><name sortKey="Niinemets, Ulo" sort="Niinemets, Ulo" uniqKey="Niinemets U" first="Ulo" last="Niinemets">Ulo Niinemets</name><name sortKey="Vislap, Vivian" sort="Vislap, Vivian" uniqKey="Vislap V" first="Vivian" last="Vislap">Vivian Vislap</name></noCountry><country name="Espagne"><noRegion><name sortKey="Tosens, Tiina" sort="Tosens, Tiina" uniqKey="Tosens T" first="Tiina" last="Tosens">Tiina Tosens</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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