Xylem anatomy correlates with gas exchange, water-use efficiency and growth performance under contrasting water regimes: evidence from Populus deltoides x Populus nigra hybrids.
Identifieur interne : 003436 ( Main/Exploration ); précédent : 003435; suivant : 003437Xylem anatomy correlates with gas exchange, water-use efficiency and growth performance under contrasting water regimes: evidence from Populus deltoides x Populus nigra hybrids.
Auteurs : Régis Fichot [France] ; Françoise Laurans ; Romain Monclus ; Alain Moreau ; Gilles Pilate ; Franck BrignolasSource :
- Tree physiology [ 0829-318X ] ; 2009.
Descripteurs français
- KwdFr :
- Acclimatation (MeSH), Dioxyde de carbone (métabolisme), Eau (métabolisme), Génotype (MeSH), Hybridation génétique (MeSH), Populus (croissance et développement), Populus (génétique), Populus (métabolisme), Transport biologique (MeSH), Xylème (anatomie et histologie), Xylème (croissance et développement), Xylème (métabolisme).
- MESH :
- anatomie et histologie : Xylème.
- croissance et développement : Populus, Xylème.
- génétique : Populus.
- métabolisme : Dioxyde de carbone, Eau, Populus, Xylème.
- Acclimatation, Génotype, Hybridation génétique, Transport biologique.
English descriptors
- KwdEn :
- Acclimatization (MeSH), Biological Transport (MeSH), Carbon Dioxide (metabolism), Genotype (MeSH), Hybridization, Genetic (MeSH), Populus (genetics), Populus (growth & development), Populus (metabolism), Water (metabolism), Xylem (anatomy & histology), Xylem (growth & development), Xylem (metabolism).
- MESH :
- chemical , metabolism : Carbon Dioxide, Water.
- anatomy & histology : Xylem.
- genetics : Populus.
- growth & development : Populus, Xylem.
- metabolism : Populus, Xylem.
- Acclimatization, Biological Transport, Genotype, Hybridization, Genetic.
Abstract
Six Populus deltoides Bartr. ex Marsh. x P. nigra L. genotypes were selected to investigate whether stem xylem anatomy correlated with gas exchange rates, water-use efficiency (WUE) and growth performance. Clonal copies of the genotypes were grown in a two-plot common garden test under contrasting water regimes, with one plot maintained irrigated and the other one subjected to moderate summer water deficit. The six genotypes displayed a large range of xylem anatomy, mean vessel and fibre diameter varying from about 40 to 60 microm and from 7.5 to 10.5 microm, respectively. Decreased water availability resulted in a reduced cell size and an important rise in vessel density, but the extent of xylem plasticity was both genotype and trait dependent. Vessel diameter and theoretical xylem-specific hydraulic conductivity correlated positively with stomatal conductance, carbon isotope discrimination and growth performance-related traits and negatively with intrinsic WUE, especially under water deficit conditions. Vessel diameter and vessel density measured under water deficit conditions correlated with the relative losses in biomass production in response to water deprivation; this resulted from the fact that a more plastic xylem structure was generally accompanied by a larger loss in biomass production.
DOI: 10.1093/treephys/tpp087
PubMed: 19825869
Affiliations:
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Pilate</name></author><author><name sortKey="Brignolas, Franck" sort="Brignolas, Franck" uniqKey="Brignolas F" first="Franck" last="Brignolas">Franck Brignolas</name></author></analytic><series><title level="j">Tree physiology</title><idno type="ISSN">0829-318X</idno><imprint><date when="2009" type="published">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acclimatization (MeSH)</term><term>Biological Transport (MeSH)</term><term>Carbon Dioxide (metabolism)</term><term>Genotype (MeSH)</term><term>Hybridization, Genetic (MeSH)</term><term>Populus (genetics)</term><term>Populus (growth & development)</term><term>Populus (metabolism)</term><term>Water (metabolism)</term><term>Xylem (anatomy & histology)</term><term>Xylem (growth & development)</term><term>Xylem (metabolism)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acclimatation (MeSH)</term><term>Dioxyde de carbone (métabolisme)</term><term>Eau (métabolisme)</term><term>Génotype (MeSH)</term><term>Hybridation génétique (MeSH)</term><term>Populus (croissance et développement)</term><term>Populus (génétique)</term><term>Populus (métabolisme)</term><term>Transport biologique (MeSH)</term><term>Xylème (anatomie et histologie)</term><term>Xylème (croissance et développement)</term><term>Xylème (métabolisme)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Carbon Dioxide</term><term>Water</term></keywords><keywords scheme="MESH" qualifier="anatomie et histologie" xml:lang="fr"><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Xylem</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Populus</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Populus</term><term>Xylem</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Populus</term><term>Xylem</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Dioxyde de carbone</term><term>Eau</term><term>Populus</term><term>Xylème</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Acclimatization</term><term>Biological Transport</term><term>Genotype</term><term>Hybridization, Genetic</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Acclimatation</term><term>Génotype</term><term>Hybridation génétique</term><term>Transport biologique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Six Populus deltoides Bartr. ex Marsh. x P. nigra L. genotypes were selected to investigate whether stem xylem anatomy correlated with gas exchange rates, water-use efficiency (WUE) and growth performance. Clonal copies of the genotypes were grown in a two-plot common garden test under contrasting water regimes, with one plot maintained irrigated and the other one subjected to moderate summer water deficit. The six genotypes displayed a large range of xylem anatomy, mean vessel and fibre diameter varying from about 40 to 60 microm and from 7.5 to 10.5 microm, respectively. Decreased water availability resulted in a reduced cell size and an important rise in vessel density, but the extent of xylem plasticity was both genotype and trait dependent. Vessel diameter and theoretical xylem-specific hydraulic conductivity correlated positively with stomatal conductance, carbon isotope discrimination and growth performance-related traits and negatively with intrinsic WUE, especially under water deficit conditions. Vessel diameter and vessel density measured under water deficit conditions correlated with the relative losses in biomass production in response to water deprivation; this resulted from the fact that a more plastic xylem structure was generally accompanied by a larger loss in biomass production.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19825869</PMID><DateCompleted><Year>2010</Year><Month>02</Month><Day>23</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0829-318X</ISSN><JournalIssue CitedMedium="Print"><Volume>29</Volume><Issue>12</Issue><PubDate><Year>2009</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Xylem anatomy correlates with gas exchange, water-use efficiency and growth performance under contrasting water regimes: evidence from Populus deltoides x Populus nigra hybrids.</ArticleTitle><Pagination><MedlinePgn>1537-49</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpp087</ELocationID><Abstract><AbstractText>Six Populus deltoides Bartr. ex Marsh. x P. nigra L. genotypes were selected to investigate whether stem xylem anatomy correlated with gas exchange rates, water-use efficiency (WUE) and growth performance. Clonal copies of the genotypes were grown in a two-plot common garden test under contrasting water regimes, with one plot maintained irrigated and the other one subjected to moderate summer water deficit. The six genotypes displayed a large range of xylem anatomy, mean vessel and fibre diameter varying from about 40 to 60 microm and from 7.5 to 10.5 microm, respectively. Decreased water availability resulted in a reduced cell size and an important rise in vessel density, but the extent of xylem plasticity was both genotype and trait dependent. Vessel diameter and theoretical xylem-specific hydraulic conductivity correlated positively with stomatal conductance, carbon isotope discrimination and growth performance-related traits and negatively with intrinsic WUE, especially under water deficit conditions. Vessel diameter and vessel density measured under water deficit conditions correlated with the relative losses in biomass production in response to water deprivation; this resulted from the fact that a more plastic xylem structure was generally accompanied by a larger loss in biomass production.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Fichot</LastName><ForeName>Régis</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>Université d'Orléans, UFR-Faculté des Sciences, UPRES EA 1207 Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), Orléans, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Laurans</LastName><ForeName>Françoise</ForeName><Initials>F</Initials></Author><Author ValidYN="Y"><LastName>Monclus</LastName><ForeName>Romain</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Moreau</LastName><ForeName>Alain</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Pilate</LastName><ForeName>Gilles</ForeName><Initials>G</Initials></Author><Author ValidYN="Y"><LastName>Brignolas</LastName><ForeName>Franck</ForeName><Initials>F</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>2009</Year><Month>10</Month><Day>13</Day></ArticleDate></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical><Chemical><RegistryNumber>142M471B3J</RegistryNumber><NameOfSubstance UI="D002245">Carbon 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MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D052584" MajorTopicYN="N">Xylem</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="Y">anatomy & histology</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>10</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>10</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>2</Month><Day>24</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">19825869</ArticleId><ArticleId IdType="pii">tpp087</ArticleId><ArticleId IdType="doi">10.1093/treephys/tpp087</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>France</li></country><region><li>Centre-Val de Loire</li><li>Région Centre</li></region><settlement><li>Orléans</li></settlement><orgName><li>Université d'Orléans</li></orgName></list><tree><noCountry><name sortKey="Brignolas, Franck" sort="Brignolas, Franck" uniqKey="Brignolas F" first="Franck" last="Brignolas">Franck Brignolas</name><name sortKey="Laurans, Francoise" sort="Laurans, Francoise" uniqKey="Laurans F" first="Françoise" last="Laurans">Françoise Laurans</name><name sortKey="Monclus, Romain" sort="Monclus, Romain" uniqKey="Monclus R" first="Romain" last="Monclus">Romain Monclus</name><name sortKey="Moreau, Alain" sort="Moreau, Alain" uniqKey="Moreau A" first="Alain" last="Moreau">Alain Moreau</name><name sortKey="Pilate, Gilles" sort="Pilate, Gilles" uniqKey="Pilate G" first="Gilles" last="Pilate">Gilles Pilate</name></noCountry><country name="France"><region name="Centre-Val de Loire"><name sortKey="Fichot, Regis" sort="Fichot, Regis" uniqKey="Fichot R" first="Régis" last="Fichot">Régis Fichot</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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