Elevated growth temperatures alter hydraulic characteristics in trembling aspen (Populus tremuloides) seedlings: implications for tree drought tolerance.
Identifieur interne : 002707 ( Main/Exploration ); précédent : 002706; suivant : 002708Elevated growth temperatures alter hydraulic characteristics in trembling aspen (Populus tremuloides) seedlings: implications for tree drought tolerance.
Auteurs : Danielle A. Way [États-Unis] ; Jean-Christophe Domec ; Robert B. JacksonSource :
- Plant, cell & environment [ 1365-3040 ] ; 2013.
Descripteurs français
- KwdFr :
- MESH :
- croissance et développement : Plant, Populus.
- métabolisme : Feuilles de plante.
- physiologie : Arbres, Eau.
- Acclimatation, Modèles biologiques, Sécheresses, Température élevée.
English descriptors
- KwdEn :
- MESH :
- chemical , physiology : Water.
- growth & development : Populus, Seedlings.
- metabolism : Plant Leaves.
- physiology : Trees.
- Acclimatization, Droughts, Hot Temperature, Models, Biological.
Abstract
Although climate change will alter both soil water availability and evaporative demand, our understanding of how future climate conditions will alter tree hydraulic architecture is limited. Here, we demonstrate that growth at elevated temperatures (ambient +5 °C) affects hydraulic traits in seedlings of the deciduous boreal tree species Populus tremuloides, with the strength of the effect varying with the plant organ studied. Temperature altered the partitioning of hydraulic resistance, with greater resistance attributed to stems and less to roots in warm-grown seedlings (P < 0.02), and a 46% (but marginally significant, P = 0.08) increase in whole plant conductance at elevated temperature. Vulnerability to cavitation was greater in leaves grown at high than at ambient temperatures, but vulnerability in stems was similar between treatments. A soil-plant-atmosphere (SPA) model suggests that these coordinated changes in hydraulic physiology would lead to more frequent drought stress and reduced water-use efficiency in aspen that develop at warmer temperatures. Tissue-specific trade-offs in hydraulic traits in response to high growth temperatures would be difficult to detect when relying solely on whole plant measurements, but may have large-scale ecological implications for plant water use, carbon cycling and, possibly, plant drought survival.
DOI: 10.1111/j.1365-3040.2012.02557.x
PubMed: 22690910
Affiliations:
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Le document en format XML
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Way</name><affiliation wicri:level="2"><nlm:affiliation>Department of Biology Nicholas School of the Environment, Duke University, Durham, NC 27708, USA. danielle.way@duke.edu</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biology Nicholas School of the Environment, Duke University, Durham, NC 27708</wicri:regionArea><placeName><region type="state">Caroline du Nord</region></placeName></affiliation></author><author><name sortKey="Domec, Jean Christophe" sort="Domec, Jean Christophe" uniqKey="Domec J" first="Jean-Christophe" last="Domec">Jean-Christophe Domec</name></author><author><name sortKey="Jackson, Robert B" sort="Jackson, Robert B" uniqKey="Jackson R" first="Robert B" last="Jackson">Robert B. 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Way</name><affiliation wicri:level="2"><nlm:affiliation>Department of Biology Nicholas School of the Environment, Duke University, Durham, NC 27708, USA. danielle.way@duke.edu</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biology Nicholas School of the Environment, Duke University, Durham, NC 27708</wicri:regionArea><placeName><region type="state">Caroline du Nord</region></placeName></affiliation></author><author><name sortKey="Domec, Jean Christophe" sort="Domec, Jean Christophe" uniqKey="Domec J" first="Jean-Christophe" last="Domec">Jean-Christophe Domec</name></author><author><name sortKey="Jackson, Robert B" sort="Jackson, Robert B" uniqKey="Jackson R" first="Robert B" last="Jackson">Robert B. Jackson</name></author></analytic><series><title level="j">Plant, cell & environment</title><idno type="eISSN">1365-3040</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acclimatization (MeSH)</term><term>Droughts (MeSH)</term><term>Hot Temperature (MeSH)</term><term>Models, Biological (MeSH)</term><term>Plant Leaves (metabolism)</term><term>Populus (growth & development)</term><term>Seedlings (growth & development)</term><term>Trees (physiology)</term><term>Water (physiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acclimatation (MeSH)</term><term>Arbres (physiologie)</term><term>Eau (physiologie)</term><term>Feuilles de plante (métabolisme)</term><term>Modèles biologiques (MeSH)</term><term>Plant (croissance et développement)</term><term>Populus (croissance et développement)</term><term>Sécheresses (MeSH)</term><term>Température élevée (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="physiology" xml:lang="en"><term>Water</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Plant</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Populus</term><term>Seedlings</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Plant Leaves</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Feuilles de plante</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Arbres</term><term>Eau</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Trees</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Acclimatization</term><term>Droughts</term><term>Hot Temperature</term><term>Models, Biological</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Acclimatation</term><term>Modèles biologiques</term><term>Sécheresses</term><term>Température élevée</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Although climate change will alter both soil water availability and evaporative demand, our understanding of how future climate conditions will alter tree hydraulic architecture is limited. Here, we demonstrate that growth at elevated temperatures (ambient +5 °C) affects hydraulic traits in seedlings of the deciduous boreal tree species Populus tremuloides, with the strength of the effect varying with the plant organ studied. Temperature altered the partitioning of hydraulic resistance, with greater resistance attributed to stems and less to roots in warm-grown seedlings (P < 0.02), and a 46% (but marginally significant, P = 0.08) increase in whole plant conductance at elevated temperature. Vulnerability to cavitation was greater in leaves grown at high than at ambient temperatures, but vulnerability in stems was similar between treatments. A soil-plant-atmosphere (SPA) model suggests that these coordinated changes in hydraulic physiology would lead to more frequent drought stress and reduced water-use efficiency in aspen that develop at warmer temperatures. Tissue-specific trade-offs in hydraulic traits in response to high growth temperatures would be difficult to detect when relying solely on whole plant measurements, but may have large-scale ecological implications for plant water use, carbon cycling and, possibly, plant drought survival.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">22690910</PMID><DateCompleted><Year>2013</Year><Month>06</Month><Day>03</Day></DateCompleted><DateRevised><Year>2015</Year><Month>11</Month><Day>19</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-3040</ISSN><JournalIssue CitedMedium="Internet"><Volume>36</Volume><Issue>1</Issue><PubDate><Year>2013</Year><Month>Jan</Month></PubDate></JournalIssue><Title>Plant, cell & environment</Title><ISOAbbreviation>Plant Cell Environ</ISOAbbreviation></Journal><ArticleTitle>Elevated growth temperatures alter hydraulic characteristics in trembling aspen (Populus tremuloides) seedlings: implications for tree drought tolerance.</ArticleTitle><Pagination><MedlinePgn>103-15</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-3040.2012.02557.x</ELocationID><Abstract><AbstractText>Although climate change will alter both soil water availability and evaporative demand, our understanding of how future climate conditions will alter tree hydraulic architecture is limited. Here, we demonstrate that growth at elevated temperatures (ambient +5 °C) affects hydraulic traits in seedlings of the deciduous boreal tree species Populus tremuloides, with the strength of the effect varying with the plant organ studied. Temperature altered the partitioning of hydraulic resistance, with greater resistance attributed to stems and less to roots in warm-grown seedlings (P < 0.02), and a 46% (but marginally significant, P = 0.08) increase in whole plant conductance at elevated temperature. Vulnerability to cavitation was greater in leaves grown at high than at ambient temperatures, but vulnerability in stems was similar between treatments. A soil-plant-atmosphere (SPA) model suggests that these coordinated changes in hydraulic physiology would lead to more frequent drought stress and reduced water-use efficiency in aspen that develop at warmer temperatures. Tissue-specific trade-offs in hydraulic traits in response to high growth temperatures would be difficult to detect when relying solely on whole plant measurements, but may have large-scale ecological implications for plant water use, carbon cycling and, possibly, plant drought survival.</AbstractText><CopyrightInformation>© 2012 Blackwell Publishing Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Way</LastName><ForeName>Danielle A</ForeName><Initials>DA</Initials><AffiliationInfo><Affiliation>Department of Biology Nicholas School of the Environment, Duke University, Durham, NC 27708, USA. danielle.way@duke.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Domec</LastName><ForeName>Jean-Christophe</ForeName><Initials>JC</Initials></Author><Author ValidYN="Y"><LastName>Jackson</LastName><ForeName>Robert B</ForeName><Initials>RB</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2012</Year><Month>07</Month><Day>08</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></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000064" MajorTopicYN="Y">Acclimatization</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D055864" MajorTopicYN="N">Droughts</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006358" MajorTopicYN="Y">Hot Temperature</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008954" MajorTopicYN="N">Models, Biological</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D036226" MajorTopicYN="N">Seedlings</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>6</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>6</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>6</Month><Day>5</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">22690910</ArticleId><ArticleId IdType="doi">10.1111/j.1365-3040.2012.02557.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Caroline du Nord</li></region></list><tree><noCountry><name sortKey="Domec, Jean Christophe" sort="Domec, Jean Christophe" uniqKey="Domec J" first="Jean-Christophe" last="Domec">Jean-Christophe Domec</name><name sortKey="Jackson, Robert B" sort="Jackson, Robert B" uniqKey="Jackson R" first="Robert B" last="Jackson">Robert B. Jackson</name></noCountry><country name="États-Unis"><region name="Caroline du Nord"><name sortKey="Way, Danielle A" sort="Way, Danielle A" uniqKey="Way D" first="Danielle A" last="Way">Danielle A. Way</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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