Physiological integration of connected balsam poplar ramets.
Identifieur interne : 001724 ( Main/Exploration ); précédent : 001723; suivant : 001725Physiological integration of connected balsam poplar ramets.
Auteurs : Kokouvi Emmanuel Adonsou [Canada] ; Annie Desrochers [Canada] ; Francine Tremblay [Canada]Source :
- Tree physiology [ 1758-4469 ] ; 2016.
Descripteurs français
- KwdFr :
- Adaptation physiologique (MeSH), Arbres (MeSH), Biomasse (MeSH), Eau (physiologie), Environnement (MeSH), Feuilles de plante (physiologie), Isotopes du carbone (métabolisme), Photosynthèse (MeSH), Populus (croissance et développement), Populus (physiologie), Racines de plante (croissance et développement), Racines de plante (physiologie), Reproduction asexuée (MeSH), Sol (MeSH), Stress physiologique (MeSH), Sécheresses (MeSH), Écologie (MeSH).
- MESH :
- croissance et développement : Populus, Racines de plante.
- métabolisme : Isotopes du carbone.
- physiologie : Eau, Feuilles de plante, Populus, Racines de plante.
- Adaptation physiologique, Arbres, Biomasse, Environnement, Photosynthèse, Reproduction asexuée, Sol, Stress physiologique, Sécheresses, Écologie.
English descriptors
- KwdEn :
- Adaptation, Physiological (MeSH), Biomass (MeSH), Carbon Isotopes (metabolism), Droughts (MeSH), Ecology (MeSH), Environment (MeSH), Photosynthesis (MeSH), Plant Leaves (physiology), Plant Roots (growth & development), Plant Roots (physiology), Populus (growth & development), Populus (physiology), Reproduction, Asexual (MeSH), Soil (MeSH), Stress, Physiological (MeSH), Trees (MeSH), Water (physiology).
- MESH :
- chemical , metabolism : Carbon Isotopes.
- growth & development : Plant Roots, Populus.
- physiology : Plant Leaves, Plant Roots, Populus, Water.
- Adaptation, Physiological, Biomass, Droughts, Ecology, Environment, Photosynthesis, Reproduction, Asexual, Soil, Stress, Physiological, Trees.
Abstract
Clonal integration between ramets can be an ecological advantage of clonal plant species in environments where resources are patchily distributed. We investigated physiological integration among Populus balsamifera L. ramets under drought stress in order to demonstrate water sharing between connected ramets. Pairs of connected ramets were grown in separate pots in the greenhouse where half of ramets had the parental root connection severed and half were left intact. Drought stress was applied to one ramet, and growth, specific leaf area (SLA), net photosynthesis, stomatal conductance, leaf water potential and carbon isotopic composition (δ(13)C) were measured after an 8-week growing period. Droughted ramets connected to watered ramets were able to maintain high gas exchange activity and water potential, similar to watered ramets. Leaf water potential and SLA results showed that the root connection was more beneficial for proximal compared with distal ramets. The parental root connection also allowed droughted ramets to discriminate more against (13)C compared with severed ramets. In conclusion, this study shows compelling evidence of physiological integration of connected P. balsamifera ramets through water sharing.
DOI: 10.1093/treephys/tpv142
PubMed: 26843209
Affiliations:
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Université, Rouyn-Noranda, QC J9X 5E4, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue, 445 boul. Université, Rouyn-Noranda, QC J9X 5E4</wicri:regionArea><wicri:noRegion>QC J9X 5E4</wicri:noRegion></affiliation></author></analytic><series><title level="j">Tree physiology</title><idno type="eISSN">1758-4469</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adaptation, Physiological (MeSH)</term><term>Biomass (MeSH)</term><term>Carbon Isotopes (metabolism)</term><term>Droughts (MeSH)</term><term>Ecology (MeSH)</term><term>Environment (MeSH)</term><term>Photosynthesis (MeSH)</term><term>Plant Leaves (physiology)</term><term>Plant Roots (growth & development)</term><term>Plant Roots (physiology)</term><term>Populus (growth & development)</term><term>Populus (physiology)</term><term>Reproduction, Asexual (MeSH)</term><term>Soil (MeSH)</term><term>Stress, Physiological (MeSH)</term><term>Trees (MeSH)</term><term>Water (physiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adaptation physiologique (MeSH)</term><term>Arbres (MeSH)</term><term>Biomasse (MeSH)</term><term>Eau (physiologie)</term><term>Environnement (MeSH)</term><term>Feuilles de plante (physiologie)</term><term>Isotopes du carbone (métabolisme)</term><term>Photosynthèse (MeSH)</term><term>Populus (croissance et développement)</term><term>Populus (physiologie)</term><term>Racines de plante (croissance et développement)</term><term>Racines de plante (physiologie)</term><term>Reproduction asexuée (MeSH)</term><term>Sol (MeSH)</term><term>Stress physiologique (MeSH)</term><term>Sécheresses (MeSH)</term><term>Écologie (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Carbon Isotopes</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Populus</term><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Plant Roots</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Isotopes du carbone</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Eau</term><term>Feuilles de plante</term><term>Populus</term><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Plant Leaves</term><term>Plant Roots</term><term>Populus</term><term>Water</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adaptation, Physiological</term><term>Biomass</term><term>Droughts</term><term>Ecology</term><term>Environment</term><term>Photosynthesis</term><term>Reproduction, Asexual</term><term>Soil</term><term>Stress, Physiological</term><term>Trees</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adaptation physiologique</term><term>Arbres</term><term>Biomasse</term><term>Environnement</term><term>Photosynthèse</term><term>Reproduction asexuée</term><term>Sol</term><term>Stress physiologique</term><term>Sécheresses</term><term>Écologie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Clonal integration between ramets can be an ecological advantage of clonal plant species in environments where resources are patchily distributed. We investigated physiological integration among Populus balsamifera L. ramets under drought stress in order to demonstrate water sharing between connected ramets. Pairs of connected ramets were grown in separate pots in the greenhouse where half of ramets had the parental root connection severed and half were left intact. Drought stress was applied to one ramet, and growth, specific leaf area (SLA), net photosynthesis, stomatal conductance, leaf water potential and carbon isotopic composition (δ(13)C) were measured after an 8-week growing period. Droughted ramets connected to watered ramets were able to maintain high gas exchange activity and water potential, similar to watered ramets. Leaf water potential and SLA results showed that the root connection was more beneficial for proximal compared with distal ramets. The parental root connection also allowed droughted ramets to discriminate more against (13)C compared with severed ramets. In conclusion, this study shows compelling evidence of physiological integration of connected P. balsamifera ramets through water sharing.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">26843209</PMID><DateCompleted><Year>2017</Year><Month>10</Month><Day>03</Day></DateCompleted><DateRevised><Year>2017</Year><Month>12</Month><Day>18</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN><JournalIssue CitedMedium="Internet"><Volume>36</Volume><Issue>7</Issue><PubDate><Year>2016</Year><Month>07</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Physiological integration of connected balsam poplar ramets.</ArticleTitle><Pagination><MedlinePgn>797-806</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpv142</ELocationID><Abstract><AbstractText>Clonal integration between ramets can be an ecological advantage of clonal plant species in environments where resources are patchily distributed. We investigated physiological integration among Populus balsamifera L. ramets under drought stress in order to demonstrate water sharing between connected ramets. Pairs of connected ramets were grown in separate pots in the greenhouse where half of ramets had the parental root connection severed and half were left intact. Drought stress was applied to one ramet, and growth, specific leaf area (SLA), net photosynthesis, stomatal conductance, leaf water potential and carbon isotopic composition (δ(13)C) were measured after an 8-week growing period. Droughted ramets connected to watered ramets were able to maintain high gas exchange activity and water potential, similar to watered ramets. Leaf water potential and SLA results showed that the root connection was more beneficial for proximal compared with distal ramets. The parental root connection also allowed droughted ramets to discriminate more against (13)C compared with severed ramets. In conclusion, this study shows compelling evidence of physiological integration of connected P. balsamifera ramets through water sharing.</AbstractText><CopyrightInformation>© The Author 2016. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Adonsou</LastName><ForeName>Kokouvi Emmanuel</ForeName><Initials>KE</Initials><AffiliationInfo><Affiliation>Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue, 341 rue Principale Nord, Amos, QC J9T 2L8, Canada k-emmanuel.adonsou@uqat.ca.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>DesRochers</LastName><ForeName>Annie</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue, 341 rue Principale Nord, Amos, QC J9T 2L8, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Tremblay</LastName><ForeName>Francine</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue, 445 boul. Université, Rouyn-Noranda, QC J9X 5E4, 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>02</Month><Day>03</Day></ArticleDate></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D002247">Carbon Isotopes</NameOfSubstance></Chemical><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="D000222" MajorTopicYN="Y">Adaptation, Physiological</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018533" MajorTopicYN="N">Biomass</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002247" MajorTopicYN="N">Carbon Isotopes</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D055864" MajorTopicYN="Y">Droughts</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004463" MajorTopicYN="N">Ecology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004777" MajorTopicYN="N">Environment</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010788" MajorTopicYN="Y">Photosynthesis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012100" MajorTopicYN="Y">Reproduction, Asexual</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013312" MajorTopicYN="N">Stress, Physiological</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">clonal integration</Keyword><Keyword MajorTopicYN="Y">drought stress</Keyword><Keyword MajorTopicYN="Y">leaf water potential</Keyword><Keyword MajorTopicYN="Y">net photosynthesis</Keyword><Keyword MajorTopicYN="Y">stomatal conductance</Keyword><Keyword MajorTopicYN="Y">water translocation</Keyword><Keyword MajorTopicYN="Y">δ13C</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2015</Year><Month>04</Month><Day>07</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2015</Year><Month>12</Month><Day>16</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2016</Year><Month>2</Month><Day>5</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2016</Year><Month>2</Month><Day>5</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2017</Year><Month>10</Month><Day>4</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">26843209</ArticleId><ArticleId IdType="pii">tpv142</ArticleId><ArticleId IdType="doi">10.1093/treephys/tpv142</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li></country></list><tree><country name="Canada"><noRegion><name sortKey="Adonsou, Kokouvi Emmanuel" sort="Adonsou, Kokouvi Emmanuel" uniqKey="Adonsou K" first="Kokouvi Emmanuel" last="Adonsou">Kokouvi Emmanuel Adonsou</name></noRegion><name sortKey="Desrochers, Annie" sort="Desrochers, Annie" uniqKey="Desrochers A" first="Annie" last="Desrochers">Annie Desrochers</name><name sortKey="Tremblay, Francine" sort="Tremblay, Francine" uniqKey="Tremblay F" first="Francine" last="Tremblay">Francine Tremblay</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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