Drought-induced xylem pit membrane damage in aspen and balsam poplar.
Identifieur interne : 001913 ( Main/Exploration ); précédent : 001912; suivant : 001914Drought-induced xylem pit membrane damage in aspen and balsam poplar.
Auteurs : Rachel M. Hillabrand [Canada] ; Uwe G. Hacke [Canada] ; Victor J. Lieffers [Canada]Source :
- Plant, cell & environment [ 1365-3040 ] ; 2016.
Descripteurs français
- KwdFr :
- MESH :
- métabolisme : Eau, Populus, Xylème.
- ultrastructure : Déshydratation, Hydrodynamique, Populus, Transport biologique, Xylème.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Water.
- metabolism : Populus, Xylem.
- ultrastructure : Populus, Xylem.
- Biological Transport, Dehydration, Hydrodynamics.
Abstract
Drought induces an increase in a tree's vulnerability to a loss of its hydraulic conductivity in many tree species, including two common in western Canada, trembling aspen (Populus tremuloides) and balsam poplar (Populus balsamifera). Termed 'cavitation fatigue' or 'air-seeding fatigue', the mechanism of this phenomenon is not well understood, but hypothesized to be a result of damage to xylem pit membranes. To examine the validity of this hypothesis, the effect of drought on the porosity of pit membranes in aspen and balsam poplar was investigated. Controlled drought and bench dehydration treatments were used to induce fatigue and scanning electron microscopy (SEM) was used to image pit membranes for relative porosity evaluations from air-dried samples after ethanol dehydration. A significant increase in the diameter of the largest pore was found in the drought and dehydration treatments of aspen, while an increase in the percentage of porous pit membranes was found in the dehydration treatments of both species. Additionally, the location of the largest pore per pit membrane was observed to tend toward the periphery of the membrane.
DOI: 10.1111/pce.12782
PubMed: 27342227
Affiliations:
Links toward previous steps (curation, corpus...)
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Hacke</name><affiliation wicri:level="1"><nlm:affiliation>University of Alberta, Department of Renewable Resources, 442 ESB, Edmonton, AB, T6G 2E3, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>University of Alberta, Department of Renewable Resources, 442 ESB, Edmonton, AB, T6G 2E3</wicri:regionArea><wicri:noRegion>T6G 2E3</wicri:noRegion></affiliation></author><author><name sortKey="Lieffers, Victor J" sort="Lieffers, Victor J" uniqKey="Lieffers V" first="Victor J" last="Lieffers">Victor J. 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Hillabrand</name><affiliation wicri:level="1"><nlm:affiliation>University of Alberta, Department of Renewable Resources, 442 ESB, Edmonton, AB, T6G 2E3, Canada. hillabra@ualberta.ca.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>University of Alberta, Department of Renewable Resources, 442 ESB, Edmonton, AB, T6G 2E3</wicri:regionArea><wicri:noRegion>T6G 2E3</wicri:noRegion></affiliation></author><author><name sortKey="Hacke, Uwe G" sort="Hacke, Uwe G" uniqKey="Hacke U" first="Uwe G" last="Hacke">Uwe G. Hacke</name><affiliation wicri:level="1"><nlm:affiliation>University of Alberta, Department of Renewable Resources, 442 ESB, Edmonton, AB, T6G 2E3, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>University of Alberta, Department of Renewable Resources, 442 ESB, Edmonton, AB, T6G 2E3</wicri:regionArea><wicri:noRegion>T6G 2E3</wicri:noRegion></affiliation></author><author><name sortKey="Lieffers, Victor J" sort="Lieffers, Victor J" uniqKey="Lieffers V" first="Victor J" last="Lieffers">Victor J. Lieffers</name><affiliation wicri:level="1"><nlm:affiliation>University of Alberta, Department of Renewable Resources, 442 ESB, Edmonton, AB, T6G 2E3, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>University of Alberta, Department of Renewable Resources, 442 ESB, Edmonton, AB, T6G 2E3</wicri:regionArea><wicri:noRegion>T6G 2E3</wicri:noRegion></affiliation></author></analytic><series><title level="j">Plant, cell & environment</title><idno type="eISSN">1365-3040</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biological Transport (MeSH)</term><term>Dehydration (MeSH)</term><term>Hydrodynamics (MeSH)</term><term>Populus (metabolism)</term><term>Populus (ultrastructure)</term><term>Water (metabolism)</term><term>Xylem (metabolism)</term><term>Xylem (ultrastructure)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Déshydratation (MeSH)</term><term>Eau (métabolisme)</term><term>Hydrodynamique (MeSH)</term><term>Populus (métabolisme)</term><term>Populus (ultrastructure)</term><term>Transport biologique (MeSH)</term><term>Xylème (métabolisme)</term><term>Xylème (ultrastructure)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Water</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>Eau</term><term>Populus</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="en"><term>Populus</term><term>Xylem</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biological Transport</term><term>Dehydration</term><term>Hydrodynamics</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="fr"><term>Déshydratation</term><term>Hydrodynamique</term><term>Populus</term><term>Transport biologique</term><term>Xylème</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Drought induces an increase in a tree's vulnerability to a loss of its hydraulic conductivity in many tree species, including two common in western Canada, trembling aspen (Populus tremuloides) and balsam poplar (Populus balsamifera). Termed 'cavitation fatigue' or 'air-seeding fatigue', the mechanism of this phenomenon is not well understood, but hypothesized to be a result of damage to xylem pit membranes. To examine the validity of this hypothesis, the effect of drought on the porosity of pit membranes in aspen and balsam poplar was investigated. Controlled drought and bench dehydration treatments were used to induce fatigue and scanning electron microscopy (SEM) was used to image pit membranes for relative porosity evaluations from air-dried samples after ethanol dehydration. A significant increase in the diameter of the largest pore was found in the drought and dehydration treatments of aspen, while an increase in the percentage of porous pit membranes was found in the dehydration treatments of both species. Additionally, the location of the largest pore per pit membrane was observed to tend toward the periphery of the membrane.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">27342227</PMID><DateCompleted><Year>2017</Year><Month>12</Month><Day>22</Day></DateCompleted><DateRevised><Year>2018</Year><Month>07</Month><Day>11</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-3040</ISSN><JournalIssue CitedMedium="Internet"><Volume>39</Volume><Issue>10</Issue><PubDate><Year>2016</Year><Month>10</Month></PubDate></JournalIssue><Title>Plant, cell & environment</Title><ISOAbbreviation>Plant Cell Environ</ISOAbbreviation></Journal><ArticleTitle>Drought-induced xylem pit membrane damage in aspen and balsam poplar.</ArticleTitle><Pagination><MedlinePgn>2210-20</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/pce.12782</ELocationID><Abstract><AbstractText>Drought induces an increase in a tree's vulnerability to a loss of its hydraulic conductivity in many tree species, including two common in western Canada, trembling aspen (Populus tremuloides) and balsam poplar (Populus balsamifera). Termed 'cavitation fatigue' or 'air-seeding fatigue', the mechanism of this phenomenon is not well understood, but hypothesized to be a result of damage to xylem pit membranes. To examine the validity of this hypothesis, the effect of drought on the porosity of pit membranes in aspen and balsam poplar was investigated. Controlled drought and bench dehydration treatments were used to induce fatigue and scanning electron microscopy (SEM) was used to image pit membranes for relative porosity evaluations from air-dried samples after ethanol dehydration. A significant increase in the diameter of the largest pore was found in the drought and dehydration treatments of aspen, while an increase in the percentage of porous pit membranes was found in the dehydration treatments of both species. Additionally, the location of the largest pore per pit membrane was observed to tend toward the periphery of the membrane.</AbstractText><CopyrightInformation>© 2016 John Wiley & Sons Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Hillabrand</LastName><ForeName>Rachel M</ForeName><Initials>RM</Initials><AffiliationInfo><Affiliation>University of Alberta, Department of Renewable Resources, 442 ESB, Edmonton, AB, T6G 2E3, Canada. hillabra@ualberta.ca.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hacke</LastName><ForeName>Uwe G</ForeName><Initials>UG</Initials><AffiliationInfo><Affiliation>University of Alberta, Department of Renewable Resources, 442 ESB, Edmonton, AB, T6G 2E3, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lieffers</LastName><ForeName>Victor J</ForeName><Initials>VJ</Initials><AffiliationInfo><Affiliation>University of Alberta, Department of Renewable Resources, 442 ESB, Edmonton, AB, T6G 2E3, Canada.</Affiliation></AffiliationInfo></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>2016</Year><Month>07</Month><Day>30</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="D001692" MajorTopicYN="N">Biological Transport</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003681" MajorTopicYN="N">Dehydration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D057446" MajorTopicYN="N">Hydrodynamics</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</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="Q000378" MajorTopicYN="Y">metabolism</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">bordered pits</Keyword><Keyword MajorTopicYN="Y">cavitation fatigue</Keyword><Keyword MajorTopicYN="Y">drought</Keyword><Keyword MajorTopicYN="Y">electron microscopy</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2016</Year><Month>03</Month><Day>18</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2016</Year><Month>06</Month><Day>13</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2016</Year><Month>06</Month><Day>15</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2016</Year><Month>6</Month><Day>26</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2016</Year><Month>6</Month><Day>28</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2017</Year><Month>12</Month><Day>23</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">27342227</ArticleId><ArticleId IdType="doi">10.1111/pce.12782</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li></country></list><tree><country name="Canada"><noRegion><name sortKey="Hillabrand, Rachel M" sort="Hillabrand, Rachel M" uniqKey="Hillabrand R" first="Rachel M" last="Hillabrand">Rachel M. Hillabrand</name></noRegion><name sortKey="Hacke, Uwe G" sort="Hacke, Uwe G" uniqKey="Hacke U" first="Uwe G" last="Hacke">Uwe G. Hacke</name><name sortKey="Lieffers, Victor J" sort="Lieffers, Victor J" uniqKey="Lieffers V" first="Victor J" last="Lieffers">Victor J. Lieffers</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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