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 : 001C88 ( Main/Corpus ); précédent : 001C87; suivant : 001C89Stem 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 ; Régis Fichot ; Camille Lédée ; Françoise Laurans ; Hervé Cochard ; Sylvain Delzon ; Catherine Bastien ; Franck BrignolasSource :
- Journal of experimental botany [ 1460-2431 ] ; 2015.
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
Links to Exploration step
pubmed:25979998Le document en format XML
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France.</nlm:affiliation></affiliation></author><author><name sortKey="Ledee, Camille" sort="Ledee, Camille" uniqKey="Ledee C" first="Camille" last="Lédée">Camille Lédée</name><affiliation><nlm: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.</nlm:affiliation></affiliation></author><author><name sortKey="Laurans, Francoise" sort="Laurans, Francoise" uniqKey="Laurans F" first="Françoise" last="Laurans">Françoise Laurans</name><affiliation><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></affiliation></author><author><name sortKey="Cochard, Herve" sort="Cochard, Herve" uniqKey="Cochard H" first="Hervé" 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Brignolas</name><affiliation><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></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2015">2015</date><idno type="RBID">pubmed:25979998</idno><idno type="pmid">25979998</idno><idno type="doi">10.1093/jxb/erv232</idno><idno type="wicri:Area/Main/Corpus">001C88</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001C88</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">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.</title><author><name sortKey="Guet, Justine" sort="Guet, Justine" uniqKey="Guet J" first="Justine" last="Guet">Justine Guet</name><affiliation><nlm: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.</nlm:affiliation></affiliation></author><author><name sortKey="Fichot, Regis" sort="Fichot, Regis" uniqKey="Fichot R" first="Régis" last="Fichot">Régis Fichot</name><affiliation><nlm:affiliation>Université d'Orléans, INRA, EA 1207, Laboratoire de Biologie des Ligneux et des Grandes Cultures, F-45067 Orléans France.</nlm:affiliation></affiliation></author><author><name sortKey="Ledee, Camille" sort="Ledee, Camille" uniqKey="Ledee C" first="Camille" last="Lédée">Camille Lédée</name><affiliation><nlm: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.</nlm:affiliation></affiliation></author><author><name sortKey="Laurans, Francoise" sort="Laurans, Francoise" uniqKey="Laurans F" first="Françoise" last="Laurans">Françoise Laurans</name><affiliation><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></affiliation></author><author><name sortKey="Cochard, Herve" sort="Cochard, Herve" uniqKey="Cochard H" first="Hervé" last="Cochard">Hervé Cochard</name><affiliation><nlm:affiliation>INRA, Université Blaise Pascal, UMR 547 PIAF, F-63100 Clermont-Ferrand, France.</nlm:affiliation></affiliation></author><author><name sortKey="Delzon, Sylvain" sort="Delzon, Sylvain" uniqKey="Delzon S" first="Sylvain" last="Delzon">Sylvain Delzon</name><affiliation><nlm:affiliation>INRA, Université de Bordeaux, UMR 1202 BIOGECO, F-33405 Talence, France.</nlm:affiliation></affiliation></author><author><name sortKey="Bastien, Catherine" sort="Bastien, Catherine" uniqKey="Bastien C" first="Catherine" last="Bastien">Catherine Bastien</name><affiliation><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></affiliation></author><author><name sortKey="Brignolas, Franck" sort="Brignolas, Franck" uniqKey="Brignolas F" first="Franck" last="Brignolas">Franck Brignolas</name><affiliation><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></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="MESH" type="chemical" qualifier="physiology" xml:lang="en"><term>Water</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Plant Stems</term><term>Xylem</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="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></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 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