Poplar vulnerability to xylem cavitation acclimates to drier soil conditions.
Identifieur interne : 003159 ( Main/Exploration ); précédent : 003158; suivant : 003160Poplar vulnerability to xylem cavitation acclimates to drier soil conditions.
Auteurs : Hosam Awad [France] ; Tete Barigah ; Eric Badel ; Herve Cochard ; Stephane HerbetteSource :
- Physiologia plantarum [ 1399-3054 ] ; 2010.
Descripteurs français
- KwdFr :
- MESH :
- analyse : Sol.
- physiologie : Eau, Feuilles de plante, Populus, Xylème.
- Acclimatation, Transpiration des plantes.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Soil.
- physiology : Plant Leaves, Populus, Water, Xylem.
- Acclimatization, Plant Transpiration.
Abstract
Xylem vulnerability to cavitation differs between tree species according to their drought resistance, more xerophilous species being more resistant to xylem cavitation. Variability in xylem vulnerability to cavitation is also found within species, especially between in situ populations. The origin of this variability has not been clearly identified. Here we analyzed the response of xylem hydraulic traits of Populus tremula x Populus alba trees to three different soil water regimes. Stem xylem vulnerability was scored as the xylem water potential causing 12, 50 and 88% loss of conductivity (P(12), P(50) and P(88)). Vulnerability to cavitation was found to acclimate to growing conditions under different levels of soil water content, with P(50) values of -1.82, -2.03 and -2.45 MPa in well-watered, moderately water-stressed and severely water-stressed poplars, respectively. The value of P(12), the xylem tension at which cavitation begins, was correlated with the lowest value of midday leaf water potential (psi m) experienced by each plant, the difference between the two parameters being approximately 0.5 MPa, consistent with the absence of any difference in embolism level between the different water treatments. These results support the hypothesis that vulnerability to cavitation is a critical trait for resistance to drought. The decrease in vulnerability to cavitation under growing conditions of soil drought was correlated with decreased vessel diameter, increased vessel wall thickness and a stronger bordered pit field (t/b)(2). The links between these parameters are discussed.
DOI: 10.1111/j.1399-3054.2010.01367.x
PubMed: 20210873
Affiliations:
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E" first="Eric" last="Badel">Eric Badel</name></author><author><name sortKey="Cochard, Herve" sort="Cochard, Herve" uniqKey="Cochard H" first="Herve" last="Cochard">Herve Cochard</name></author><author><name sortKey="Herbette, Stephane" sort="Herbette, Stephane" uniqKey="Herbette S" first="Stephane" last="Herbette">Stephane Herbette</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="RBID">pubmed:20210873</idno><idno type="pmid">20210873</idno><idno type="doi">10.1111/j.1399-3054.2010.01367.x</idno><idno type="wicri:Area/Main/Corpus">003274</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003274</idno><idno type="wicri:Area/Main/Curation">003274</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">003274</idno><idno type="wicri:Area/Main/Exploration">003274</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Poplar 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sortKey="Cochard, Herve" sort="Cochard, Herve" uniqKey="Cochard H" first="Herve" last="Cochard">Herve Cochard</name></author><author><name sortKey="Herbette, Stephane" sort="Herbette, Stephane" uniqKey="Herbette S" first="Stephane" last="Herbette">Stephane Herbette</name></author></analytic><series><title level="j">Physiologia plantarum</title><idno type="eISSN">1399-3054</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acclimatization (MeSH)</term><term>Plant Leaves (physiology)</term><term>Plant Transpiration (MeSH)</term><term>Populus (physiology)</term><term>Soil (analysis)</term><term>Water (physiology)</term><term>Xylem (physiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acclimatation (MeSH)</term><term>Eau (physiologie)</term><term>Feuilles de plante (physiologie)</term><term>Populus (physiologie)</term><term>Sol (analyse)</term><term>Transpiration des plantes (MeSH)</term><term>Xylème (physiologie)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Soil</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Sol</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Eau</term><term>Feuilles de plante</term><term>Populus</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Plant Leaves</term><term>Populus</term><term>Water</term><term>Xylem</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Acclimatization</term><term>Plant Transpiration</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Acclimatation</term><term>Transpiration des plantes</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Xylem vulnerability to cavitation differs between tree species according to their drought resistance, more xerophilous species being more resistant to xylem cavitation. Variability in xylem vulnerability to cavitation is also found within species, especially between in situ populations. The origin of this variability has not been clearly identified. Here we analyzed the response of xylem hydraulic traits of Populus tremula x Populus alba trees to three different soil water regimes. Stem xylem vulnerability was scored as the xylem water potential causing 12, 50 and 88% loss of conductivity (P(12), P(50) and P(88)). Vulnerability to cavitation was found to acclimate to growing conditions under different levels of soil water content, with P(50) values of -1.82, -2.03 and -2.45 MPa in well-watered, moderately water-stressed and severely water-stressed poplars, respectively. The value of P(12), the xylem tension at which cavitation begins, was correlated with the lowest value of midday leaf water potential (psi m) experienced by each plant, the difference between the two parameters being approximately 0.5 MPa, consistent with the absence of any difference in embolism level between the different water treatments. These results support the hypothesis that vulnerability to cavitation is a critical trait for resistance to drought. The decrease in vulnerability to cavitation under growing conditions of soil drought was correlated with decreased vessel diameter, increased vessel wall thickness and a stronger bordered pit field (t/b)(2). The links between these parameters are discussed.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">20210873</PMID><DateCompleted><Year>2010</Year><Month>10</Month><Day>12</Day></DateCompleted><DateRevised><Year>2017</Year><Month>11</Month><Day>16</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1399-3054</ISSN><JournalIssue CitedMedium="Internet"><Volume>139</Volume><Issue>3</Issue><PubDate><Year>2010</Year><Month>Jul</Month><Day>01</Day></PubDate></JournalIssue><Title>Physiologia plantarum</Title><ISOAbbreviation>Physiol Plant</ISOAbbreviation></Journal><ArticleTitle>Poplar vulnerability to xylem cavitation acclimates to drier soil conditions.</ArticleTitle><Pagination><MedlinePgn>280-8</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1399-3054.2010.01367.x</ELocationID><Abstract><AbstractText>Xylem vulnerability to cavitation differs between tree species according to their drought resistance, more xerophilous species being more resistant to xylem cavitation. Variability in xylem vulnerability to cavitation is also found within species, especially between in situ populations. The origin of this variability has not been clearly identified. Here we analyzed the response of xylem hydraulic traits of Populus tremula x Populus alba trees to three different soil water regimes. Stem xylem vulnerability was scored as the xylem water potential causing 12, 50 and 88% loss of conductivity (P(12), P(50) and P(88)). Vulnerability to cavitation was found to acclimate to growing conditions under different levels of soil water content, with P(50) values of -1.82, -2.03 and -2.45 MPa in well-watered, moderately water-stressed and severely water-stressed poplars, respectively. The value of P(12), the xylem tension at which cavitation begins, was correlated with the lowest value of midday leaf water potential (psi m) experienced by each plant, the difference between the two parameters being approximately 0.5 MPa, consistent with the absence of any difference in embolism level between the different water treatments. These results support the hypothesis that vulnerability to cavitation is a critical trait for resistance to drought. The decrease in vulnerability to cavitation under growing conditions of soil drought was correlated with decreased vessel diameter, increased vessel wall thickness and a stronger bordered pit field (t/b)(2). The links between these parameters are discussed.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Awad</LastName><ForeName>Hosam</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>Clermont Université, Université Blaise Pascal, UMR 547 PIAF, F-63177, Aubière, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Barigah</LastName><ForeName>Tete</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Badel</LastName><ForeName>Eric</ForeName><Initials>E</Initials></Author><Author ValidYN="Y"><LastName>Cochard</LastName><ForeName>Herve</ForeName><Initials>H</Initials></Author><Author ValidYN="Y"><LastName>Herbette</LastName><ForeName>Stephane</ForeName><Initials>S</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2010</Year><Month>02</Month><Day>19</Day></ArticleDate></Article><MedlineJournalInfo><Country>Denmark</Country><MedlineTA>Physiol Plant</MedlineTA><NlmUniqueID>1256322</NlmUniqueID><ISSNLinking>0031-9317</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000064" MajorTopicYN="Y">Acclimatization</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018526" MajorTopicYN="N">Plant Transpiration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</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="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>3</Month><Day>10</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>3</Month><Day>10</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>10</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">20210873</ArticleId><ArticleId IdType="pii">PPL1367</ArticleId><ArticleId IdType="doi">10.1111/j.1399-3054.2010.01367.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>France</li></country><region><li>Auvergne (région administrative)</li><li>Auvergne-Rhône-Alpes</li></region><settlement><li>Aubière</li></settlement></list><tree><noCountry><name sortKey="Badel, Eric" sort="Badel, Eric" uniqKey="Badel E" first="Eric" last="Badel">Eric Badel</name><name sortKey="Barigah, Tete" sort="Barigah, Tete" uniqKey="Barigah T" first="Tete" last="Barigah">Tete Barigah</name><name sortKey="Cochard, Herve" sort="Cochard, Herve" uniqKey="Cochard H" first="Herve" last="Cochard">Herve Cochard</name><name sortKey="Herbette, Stephane" sort="Herbette, Stephane" uniqKey="Herbette S" first="Stephane" last="Herbette">Stephane Herbette</name></noCountry><country name="France"><region name="Auvergne-Rhône-Alpes"><name sortKey="Awad, Hosam" sort="Awad, Hosam" uniqKey="Awad H" first="Hosam" last="Awad">Hosam Awad</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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