Influence of evaporative demand on aquaporin expression and root hydraulics of hybrid poplar.
Identifieur interne : 002E24 ( Main/Exploration ); précédent : 002E23; suivant : 002E25Influence of evaporative demand on aquaporin expression and root hydraulics of hybrid poplar.
Auteurs : Adriana M. Almeida-Rodriguez [Canada] ; Uwe G. Hacke ; Joan LaurSource :
- Plant, cell & environment [ 1365-3040 ] ; 2011.
Descripteurs français
- KwdFr :
- ARN messager (MeSH), Acclimatation (MeSH), Aquaporines (génétique), Aquaporines (métabolisme), Chimère (MeSH), Hybridation in situ (MeSH), Lumière (MeSH), Phénomènes biophysiques (MeSH), Populus (génétique), Populus (métabolisme), Populus (physiologie), Protéines végétales (génétique), Protéines végétales (métabolisme), RT-PCR (MeSH), Racines de plante (physiologie), Régulation de l'expression des gènes végétaux (MeSH).
- MESH :
- génétique : Aquaporines, Populus, Protéines végétales.
- métabolisme : Aquaporines, Populus, Protéines végétales.
- physiologie : Populus, Racines de plante.
- ARN messager, Acclimatation, Chimère, Hybridation in situ, Lumière, Phénomènes biophysiques, RT-PCR, Régulation de l'expression des gènes végétaux.
English descriptors
- KwdEn :
- Acclimatization (MeSH), Aquaporins (genetics), Aquaporins (metabolism), Biophysical Phenomena (MeSH), Chimera (MeSH), Gene Expression Regulation, Plant (MeSH), In Situ Hybridization (MeSH), Light (MeSH), Plant Proteins (genetics), Plant Proteins (metabolism), Plant Roots (physiology), Populus (genetics), Populus (metabolism), Populus (physiology), RNA, Messenger (MeSH), Reverse Transcriptase Polymerase Chain Reaction (MeSH).
- MESH :
- chemical , genetics : Aquaporins, Plant Proteins.
- chemical , metabolism : Aquaporins, Plant Proteins.
- genetics : Populus.
- metabolism : Populus.
- physiology : Plant Roots, Populus.
- Acclimatization, Biophysical Phenomena, Chimera, Gene Expression Regulation, Plant, In Situ Hybridization, Light, RNA, Messenger, Reverse Transcriptase Polymerase Chain Reaction.
Abstract
When light levels and evaporative demand increase, dynamic physiological changes in roots may be required to restore the water balance at the whole plant level. We hypothesized that a dynamic increase in root hydraulic conductance (L(P)) and aquaporin (AQP) expression could moderate the transpiration-induced drop in water potential (Ψ), allowing continued gas exchange in hybrid poplar (Populus trichocarpa × deltoides) saplings. Fifty-six AQPs have been identified in poplar, but little information about their expression patterns in roots is available, especially from a whole-plant water relations perspective. We measured AQP expression and L(P) in plants subjected to different levels of light and evaporative demand. Shaded plants had only one-tenth the root area of plants growing at higher light levels. Shade-grown saplings experiencing a sudden increase in light exhibited a threefold higher L(P) than plants remaining in shade. This dynamic increase in L(P) corresponded with increased transcript abundance of 15 AQPs out of a total of 33 genes simultaneously assessed by quantitative RT-PCR. The tissue-level localization of transcripts of four AQPs was studied with in situ hybridization. Comprehensive expression profiling in conjunction with physiological and morphological measurements is a valuable reference for future studies on AQP function in poplar.
DOI: 10.1111/j.1365-3040.2011.02331.x
PubMed: 21477124
Affiliations:
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Hacke</name></author><author><name sortKey="Laur, Joan" sort="Laur, Joan" uniqKey="Laur J" first="Joan" last="Laur">Joan Laur</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2011">2011</date><idno type="RBID">pubmed:21477124</idno><idno type="pmid">21477124</idno><idno type="doi">10.1111/j.1365-3040.2011.02331.x</idno><idno type="wicri:Area/Main/Corpus">002E51</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002E51</idno><idno type="wicri:Area/Main/Curation">002E51</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">002E51</idno><idno type="wicri:Area/Main/Exploration">002E51</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Influence of evaporative demand on aquaporin expression and root hydraulics of hybrid poplar.</title><author><name sortKey="Almeida Rodriguez, Adriana M" sort="Almeida Rodriguez, Adriana M" uniqKey="Almeida Rodriguez A" first="Adriana M" last="Almeida-Rodriguez">Adriana M. 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We hypothesized that a dynamic increase in root hydraulic conductance (L(P)) and aquaporin (AQP) expression could moderate the transpiration-induced drop in water potential (Ψ), allowing continued gas exchange in hybrid poplar (Populus trichocarpa × deltoides) saplings. Fifty-six AQPs have been identified in poplar, but little information about their expression patterns in roots is available, especially from a whole-plant water relations perspective. We measured AQP expression and L(P) in plants subjected to different levels of light and evaporative demand. Shaded plants had only one-tenth the root area of plants growing at higher light levels. Shade-grown saplings experiencing a sudden increase in light exhibited a threefold higher L(P) than plants remaining in shade. This dynamic increase in L(P) corresponded with increased transcript abundance of 15 AQPs out of a total of 33 genes simultaneously assessed by quantitative RT-PCR. The tissue-level localization of transcripts of four AQPs was studied with in situ hybridization. Comprehensive expression profiling in conjunction with physiological and morphological measurements is a valuable reference for future studies on AQP function in poplar.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">21477124</PMID><DateCompleted><Year>2011</Year><Month>11</Month><Day>22</Day></DateCompleted><DateRevised><Year>2016</Year><Month>11</Month><Day>25</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-3040</ISSN><JournalIssue CitedMedium="Internet"><Volume>34</Volume><Issue>8</Issue><PubDate><Year>2011</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Plant, cell & environment</Title><ISOAbbreviation>Plant Cell Environ</ISOAbbreviation></Journal><ArticleTitle>Influence of evaporative demand on aquaporin expression and root hydraulics of hybrid poplar.</ArticleTitle><Pagination><MedlinePgn>1318-31</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-3040.2011.02331.x</ELocationID><Abstract><AbstractText>When light levels and evaporative demand increase, dynamic physiological changes in roots may be required to restore the water balance at the whole plant level. We hypothesized that a dynamic increase in root hydraulic conductance (L(P)) and aquaporin (AQP) expression could moderate the transpiration-induced drop in water potential (Ψ), allowing continued gas exchange in hybrid poplar (Populus trichocarpa × deltoides) saplings. Fifty-six AQPs have been identified in poplar, but little information about their expression patterns in roots is available, especially from a whole-plant water relations perspective. We measured AQP expression and L(P) in plants subjected to different levels of light and evaporative demand. Shaded plants had only one-tenth the root area of plants growing at higher light levels. Shade-grown saplings experiencing a sudden increase in light exhibited a threefold higher L(P) than plants remaining in shade. This dynamic increase in L(P) corresponded with increased transcript abundance of 15 AQPs out of a total of 33 genes simultaneously assessed by quantitative RT-PCR. The tissue-level localization of transcripts of four AQPs was studied with in situ hybridization. Comprehensive expression profiling in conjunction with physiological and morphological measurements is a valuable reference for future studies on AQP function in poplar.</AbstractText><CopyrightInformation>© 2011 Blackwell Publishing Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Almeida-Rodriguez</LastName><ForeName>Adriana M</ForeName><Initials>AM</Initials><AffiliationInfo><Affiliation>Department of Renewable Resources, 442 ESB, University of Alberta, Edmonton, AB, Canada T6E 2E3.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hacke</LastName><ForeName>Uwe G</ForeName><Initials>UG</Initials></Author><Author ValidYN="Y"><LastName>Laur</LastName><ForeName>Joan</ForeName><Initials>J</Initials></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>2011</Year><Month>06</Month><Day>20</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Cell Environ</MedlineTA><NlmUniqueID>9309004</NlmUniqueID><ISSNLinking>0140-7791</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D020346">Aquaporins</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010940">Plant Proteins</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012333">RNA, Messenger</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000064" MajorTopicYN="N">Acclimatization</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D020346" MajorTopicYN="N">Aquaporins</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D055592" MajorTopicYN="N">Biophysical Phenomena</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002678" MajorTopicYN="N">Chimera</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018506" MajorTopicYN="Y">Gene Expression Regulation, Plant</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017403" MajorTopicYN="N">In Situ Hybridization</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008027" MajorTopicYN="N">Light</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010940" MajorTopicYN="N">Plant Proteins</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012333" MajorTopicYN="N">RNA, Messenger</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D020133" MajorTopicYN="N">Reverse Transcriptase Polymerase Chain Reaction</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>4</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>4</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2011</Year><Month>12</Month><Day>13</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">21477124</ArticleId><ArticleId IdType="doi">10.1111/j.1365-3040.2011.02331.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li></country></list><tree><noCountry><name sortKey="Hacke, Uwe G" sort="Hacke, Uwe G" uniqKey="Hacke U" first="Uwe G" last="Hacke">Uwe G. Hacke</name><name sortKey="Laur, Joan" sort="Laur, Joan" uniqKey="Laur J" first="Joan" last="Laur">Joan Laur</name></noCountry><country name="Canada"><noRegion><name sortKey="Almeida Rodriguez, Adriana M" sort="Almeida Rodriguez, Adriana M" uniqKey="Almeida Rodriguez A" first="Adriana M" last="Almeida-Rodriguez">Adriana M. Almeida-Rodriguez</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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