Stem xylem resistance to cavitation is related to xylem structure but not to growth and water-use efficiency at the within-population level in Populus nigra L.
Identifieur interne : 001B33 ( Main/Exploration ); précédent : 001B32; suivant : 001B34Stem xylem resistance to cavitation is related to xylem structure but not to growth and water-use efficiency at the within-population level in Populus nigra L.
Auteurs : Justine Guet [France] ; Régis Fichot [France] ; Camille Lédée [France] ; Françoise Laurans [France] ; Hervé Cochard [France] ; Sylvain Delzon [France] ; Catherine Bastien [France] ; Franck Brignolas [France]Source :
- Journal of experimental botany [ 1460-2431 ] ; 2015.
Descripteurs français
- KwdFr :
- Eau (physiologie), Phénomènes biomécaniques (MeSH), Populus (croissance et développement), Populus (génétique), Populus (physiologie), Sécheresses (MeSH), Tiges de plante (anatomie et histologie), Tiges de plante (cytologie), Variation génétique (MeSH), Xylème (anatomie et histologie), Xylème (cytologie).
- MESH :
- anatomie et histologie : Tiges de plante, Xylème.
- croissance et développement : Populus.
- cytologie : Tiges de plante, Xylème.
- génétique : Populus.
- physiologie : Eau, Populus.
- Phénomènes biomécaniques, Sécheresses, Variation génétique.
English descriptors
- KwdEn :
- MESH :
- chemical , physiology : Water.
- anatomy & histology : Plant Stems, Xylem.
- cytology : Plant Stems, Xylem.
- genetics : Populus.
- growth & development : Populus.
- physiology : Populus.
- Biomechanical Phenomena, Droughts, Genetic Variation.
Abstract
Xylem resistance to drought-induced cavitation is a key trait of plant water relations. This study assesses the genetic variation expressed for stem cavitation resistance within a population of a riparian species, the European black poplar (Populus nigra L.), and explores its relationships with xylem anatomy, water-use efficiency (WUE), and growth. Sixteen structural and physiological traits related to cavitation resistance, xylem anatomy, growth, bud phenology, and WUE were measured on 33 P. nigra genotypes grown under optimal irrigation in a 2-year-old clonal experiment in a nursery. Significant genetic variation was expressed for the xylem tension inducing 50% loss of hydraulic conductivity (Ψ50) within the studied population, as attested by the high value of broad-sense heritability estimated for this trait (H (2) ind = 0.72). Stem cavitation resistance was associated with xylem structure: the more cavitation-resistant genotypes exhibited lower hydraulic efficiency and higher mechanical reinforcement as assessed from stem xylem cross sections. By contrast, Ψ50 was not significantly related to shoot height increment, total above-ground dry mass, or bulk leaf carbon isotope discrimination, a proxy for intrinsic WUE. These findings indicate that the trade-offs between xylem resistance to cavitation, hydraulic efficiency, and mechanical reinforcement can occur at the within-population level. Given that the studied genotypes were exposed to the same environmental conditions and evolutionary drivers in situ, the trade-offs detected at this scale are expected to reflect true functional relationships.
DOI: 10.1093/jxb/erv232
PubMed: 25979998
Affiliations:
- France
- Aquitaine, Auvergne (région administrative), Auvergne-Rhône-Alpes, Centre-Val de Loire, Nouvelle-Aquitaine, Région Centre
- Clermont-Ferrand, Orléans, Talence
- Université Blaise-Pascal, Université d'Orléans, Université de Bordeaux
Links toward previous steps (curation, corpus...)
Le document en format XML
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Physiologie Forestières' (AGPF), Centre de Recherche Val de Loire, CS 40001 Ardon, F-45075 Orléans Cedex 2, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Université d'Orléans, INRA, EA 1207, Laboratoire de Biologie des Ligneux et des Grandes Cultures, F-45067 Orléans France INRA, UR 0588 'Amélioration, Génétique et Physiologie Forestières' (AGPF), Centre de Recherche Val de Loire, CS 40001 Ardon, F-45075 Orléans Cedex 2</wicri:regionArea><placeName><region type="region" nuts="2">Centre-Val de Loire</region><region type="old region" nuts="2">Région Centre</region><settlement type="city">Orléans</settlement></placeName><orgName type="university">Université d'Orléans</orgName></affiliation></author><author><name sortKey="Laurans, Francoise" sort="Laurans, Francoise" uniqKey="Laurans F" first="Françoise" last="Laurans">Françoise Laurans</name><affiliation wicri:level="3"><nlm:affiliation>INRA, UR 0588 'Amélioration, Génétique et Physiologie Forestières' 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nuts="2">Auvergne-Rhône-Alpes</region><region type="old region" nuts="2">Auvergne (région administrative)</region><settlement type="city">Clermont-Ferrand</settlement></placeName><orgName type="university">Université Blaise-Pascal</orgName></affiliation></author><author><name sortKey="Delzon, Sylvain" sort="Delzon, Sylvain" uniqKey="Delzon S" first="Sylvain" last="Delzon">Sylvain Delzon</name><affiliation wicri:level="4"><nlm:affiliation>INRA, Université de Bordeaux, UMR 1202 BIOGECO, F-33405 Talence, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>INRA, Université de Bordeaux, UMR 1202 BIOGECO, F-33405 Talence</wicri:regionArea><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Talence</settlement></placeName><orgName type="university">Université de Bordeaux</orgName></affiliation></author><author><name sortKey="Bastien, Catherine" sort="Bastien, Catherine" uniqKey="Bastien C" first="Catherine" last="Bastien">Catherine Bastien</name><affiliation wicri:level="3"><nlm:affiliation>INRA, UR 0588 'Amélioration, Génétique et Physiologie Forestières' (AGPF), Centre de Recherche Val de Loire, CS 40001 Ardon, F-45075 Orléans Cedex 2, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>INRA, UR 0588 'Amélioration, Génétique et Physiologie Forestières' (AGPF), Centre de Recherche Val de Loire, CS 40001 Ardon, F-45075 Orléans Cedex 2</wicri:regionArea><placeName><region type="region" nuts="2">Centre-Val de Loire</region><region type="old region" nuts="2">Région Centre</region><settlement type="city">Orléans</settlement></placeName></affiliation></author><author><name sortKey="Brignolas, Franck" sort="Brignolas, Franck" uniqKey="Brignolas F" first="Franck" last="Brignolas">Franck Brignolas</name><affiliation wicri:level="1"><nlm:affiliation>Université d'Orléans, INRA, EA 1207, Laboratoire de Biologie des Ligneux et des Grandes Cultures, F-45067 Orléans France franck.brignolas@univ-orleans.fr.</nlm:affiliation><country wicri:rule="zip">France</country><wicri:regionArea>F-45067 Orléans France franck.brignolas@univ-orleans.fr.</wicri:regionArea></affiliation></author></analytic><series><title level="j">Journal of experimental botany</title><idno type="eISSN">1460-2431</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biomechanical Phenomena (MeSH)</term><term>Droughts (MeSH)</term><term>Genetic Variation (MeSH)</term><term>Plant Stems (anatomy & histology)</term><term>Plant Stems (cytology)</term><term>Populus (genetics)</term><term>Populus (growth & development)</term><term>Populus (physiology)</term><term>Water (physiology)</term><term>Xylem (anatomy & histology)</term><term>Xylem (cytology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Eau (physiologie)</term><term>Phénomènes biomécaniques (MeSH)</term><term>Populus (croissance et développement)</term><term>Populus (génétique)</term><term>Populus (physiologie)</term><term>Sécheresses (MeSH)</term><term>Tiges de plante (anatomie et histologie)</term><term>Tiges de plante (cytologie)</term><term>Variation génétique (MeSH)</term><term>Xylème (anatomie et histologie)</term><term>Xylème (cytologie)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="physiology" xml:lang="en"><term>Water</term></keywords><keywords scheme="MESH" qualifier="anatomie et histologie" xml:lang="fr"><term>Tiges de plante</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Plant Stems</term><term>Xylem</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="cytologie" xml:lang="fr"><term>Tiges de plante</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Plant Stems</term><term>Xylem</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></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Eau</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biomechanical Phenomena</term><term>Droughts</term><term>Genetic Variation</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Phénomènes biomécaniques</term><term>Sécheresses</term><term>Variation génétique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Xylem resistance to drought-induced cavitation is a key trait of plant water relations. This study assesses the genetic variation expressed for stem cavitation resistance within a population of a riparian species, the European black poplar (Populus nigra L.), and explores its relationships with xylem anatomy, water-use efficiency (WUE), and growth. Sixteen structural and physiological traits related to cavitation resistance, xylem anatomy, growth, bud phenology, and WUE were measured on 33 P. nigra genotypes grown under optimal irrigation in a 2-year-old clonal experiment in a nursery. Significant genetic variation was expressed for the xylem tension inducing 50% loss of hydraulic conductivity (Ψ50) within the studied population, as attested by the high value of broad-sense heritability estimated for this trait (H (2) ind = 0.72). Stem cavitation resistance was associated with xylem structure: the more cavitation-resistant genotypes exhibited lower hydraulic efficiency and higher mechanical reinforcement as assessed from stem xylem cross sections. By contrast, Ψ50 was not significantly related to shoot height increment, total above-ground dry mass, or bulk leaf carbon isotope discrimination, a proxy for intrinsic WUE. These findings indicate that the trade-offs between xylem resistance to cavitation, hydraulic efficiency, and mechanical reinforcement can occur at the within-population level. Given that the studied genotypes were exposed to the same environmental conditions and evolutionary drivers in situ, the trade-offs detected at this scale are expected to reflect true functional relationships. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">25979998</PMID><DateCompleted><Year>2016</Year><Month>05</Month><Day>24</Day></DateCompleted><DateRevised><Year>2015</Year><Month>07</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1460-2431</ISSN><JournalIssue CitedMedium="Internet"><Volume>66</Volume><Issue>15</Issue><PubDate><Year>2015</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Journal of experimental botany</Title><ISOAbbreviation>J Exp Bot</ISOAbbreviation></Journal><ArticleTitle>Stem xylem resistance to cavitation is related to xylem structure but not to growth and water-use efficiency at the within-population level in Populus nigra L.</ArticleTitle><Pagination><MedlinePgn>4643-52</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/jxb/erv232</ELocationID><Abstract><AbstractText>Xylem resistance to drought-induced cavitation is a key trait of plant water relations. This study assesses the genetic variation expressed for stem cavitation resistance within a population of a riparian species, the European black poplar (Populus nigra L.), and explores its relationships with xylem anatomy, water-use efficiency (WUE), and growth. Sixteen structural and physiological traits related to cavitation resistance, xylem anatomy, growth, bud phenology, and WUE were measured on 33 P. nigra genotypes grown under optimal irrigation in a 2-year-old clonal experiment in a nursery. Significant genetic variation was expressed for the xylem tension inducing 50% loss of hydraulic conductivity (Ψ50) within the studied population, as attested by the high value of broad-sense heritability estimated for this trait (H (2) ind = 0.72). Stem cavitation resistance was associated with xylem structure: the more cavitation-resistant genotypes exhibited lower hydraulic efficiency and higher mechanical reinforcement as assessed from stem xylem cross sections. By contrast, Ψ50 was not significantly related to shoot height increment, total above-ground dry mass, or bulk leaf carbon isotope discrimination, a proxy for intrinsic WUE. These findings indicate that the trade-offs between xylem resistance to cavitation, hydraulic efficiency, and mechanical reinforcement can occur at the within-population level. Given that the studied genotypes were exposed to the same environmental conditions and evolutionary drivers in situ, the trade-offs detected at this scale are expected to reflect true functional relationships. </AbstractText><CopyrightInformation>© The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissions@oup.com.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Guet</LastName><ForeName>Justine</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Université d'Orléans, INRA, EA 1207, Laboratoire de Biologie des Ligneux et des Grandes Cultures, F-45067 Orléans France INRA, UR 0588 'Amélioration, Génétique et Physiologie Forestières' (AGPF), Centre de Recherche Val de Loire, CS 40001 Ardon, F-45075 Orléans Cedex 2, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Fichot</LastName><ForeName>Régis</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>Université d'Orléans, INRA, EA 1207, Laboratoire de Biologie des Ligneux et des Grandes Cultures, F-45067 Orléans France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lédée</LastName><ForeName>Camille</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>Université d'Orléans, INRA, EA 1207, Laboratoire de Biologie des Ligneux et des Grandes Cultures, F-45067 Orléans France INRA, UR 0588 'Amélioration, Génétique et Physiologie Forestières' (AGPF), Centre de Recherche Val de Loire, CS 40001 Ardon, F-45075 Orléans Cedex 2, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Laurans</LastName><ForeName>Françoise</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>INRA, UR 0588 'Amélioration, Génétique et Physiologie Forestières' (AGPF), Centre de Recherche Val de Loire, CS 40001 Ardon, F-45075 Orléans Cedex 2, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Cochard</LastName><ForeName>Hervé</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>INRA, Université Blaise Pascal, UMR 547 PIAF, F-63100 Clermont-Ferrand, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Delzon</LastName><ForeName>Sylvain</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>INRA, Université de Bordeaux, UMR 1202 BIOGECO, F-33405 Talence, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Bastien</LastName><ForeName>Catherine</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>INRA, UR 0588 'Amélioration, Génétique et Physiologie Forestières' (AGPF), Centre de Recherche Val de Loire, CS 40001 Ardon, F-45075 Orléans Cedex 2, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Brignolas</LastName><ForeName>Franck</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>Université d'Orléans, INRA, EA 1207, Laboratoire de Biologie des Ligneux et des Grandes Cultures, F-45067 Orléans France franck.brignolas@univ-orleans.fr.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2015</Year><Month>05</Month><Day>15</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>J Exp Bot</MedlineTA><NlmUniqueID>9882906</NlmUniqueID><ISSNLinking>0022-0957</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001696" MajorTopicYN="N">Biomechanical Phenomena</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D055864" MajorTopicYN="N">Droughts</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014644" MajorTopicYN="Y">Genetic Variation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D052584" MajorTopicYN="N">Xylem</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Bud phenology</Keyword><Keyword MajorTopicYN="N">Populus nigra</Keyword><Keyword MajorTopicYN="N">bulk leaf carbon isotope discrimination</Keyword><Keyword MajorTopicYN="N">drought-induced cavitation</Keyword><Keyword MajorTopicYN="N">functional trade-offs</Keyword><Keyword MajorTopicYN="N">growth</Keyword><Keyword MajorTopicYN="N">riparian species</Keyword><Keyword MajorTopicYN="N">water-use efficiency</Keyword><Keyword MajorTopicYN="N">within-population genetic variation</Keyword><Keyword MajorTopicYN="N">xylem structure.</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2015</Year><Month>5</Month><Day>17</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2015</Year><Month>5</Month><Day>17</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2016</Year><Month>5</Month><Day>25</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">25979998</ArticleId><ArticleId IdType="pii">erv232</ArticleId><ArticleId IdType="doi">10.1093/jxb/erv232</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>France</li></country><region><li>Aquitaine</li><li>Auvergne (région administrative)</li><li>Auvergne-Rhône-Alpes</li><li>Centre-Val de Loire</li><li>Nouvelle-Aquitaine</li><li>Région Centre</li></region><settlement><li>Clermont-Ferrand</li><li>Orléans</li><li>Talence</li></settlement><orgName><li>Université Blaise-Pascal</li><li>Université d'Orléans</li><li>Université de Bordeaux</li></orgName></list><tree><country name="France"><region name="Centre-Val de Loire"><name sortKey="Guet, Justine" sort="Guet, Justine" uniqKey="Guet J" first="Justine" last="Guet">Justine Guet</name></region><name sortKey="Bastien, Catherine" sort="Bastien, Catherine" uniqKey="Bastien C" first="Catherine" last="Bastien">Catherine Bastien</name><name sortKey="Brignolas, Franck" sort="Brignolas, Franck" uniqKey="Brignolas F" first="Franck" last="Brignolas">Franck Brignolas</name><name sortKey="Cochard, Herve" sort="Cochard, Herve" uniqKey="Cochard H" first="Hervé" last="Cochard">Hervé Cochard</name><name sortKey="Delzon, Sylvain" sort="Delzon, Sylvain" uniqKey="Delzon S" first="Sylvain" last="Delzon">Sylvain Delzon</name><name sortKey="Fichot, Regis" sort="Fichot, Regis" uniqKey="Fichot R" first="Régis" last="Fichot">Régis Fichot</name><name sortKey="Laurans, Francoise" sort="Laurans, Francoise" uniqKey="Laurans F" first="Françoise" last="Laurans">Françoise Laurans</name><name sortKey="Ledee, Camille" sort="Ledee, Camille" uniqKey="Ledee C" first="Camille" last="Lédée">Camille Lédée</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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|texte= Stem xylem resistance to cavitation is related to xylem structure but not to growth and water-use efficiency at the within-population level in Populus nigra L.
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