Sucrose phosphate synthase expression influences poplar phenology.
Identifieur interne : 003473 ( Main/Exploration ); précédent : 003472; suivant : 003474Sucrose phosphate synthase expression influences poplar phenology.
Auteurs : Ji-Young Park [Canada] ; Thomas Canam ; Kyu-Young Kang ; Faride Unda ; Shawn D. MansfieldSource :
- Tree physiology [ 0829-318X ] ; 2009.
Descripteurs français
- KwdFr :
- Amidon (métabolisme), Arabidopsis (génétique), Arbres (croissance et développement), Arbres (enzymologie), Carbone (métabolisme), Glucosyltransferases (génétique), Glucosyltransferases (métabolisme), Métabolisme glucidique (MeSH), Populus (croissance et développement), Populus (enzymologie), Saccharose (métabolisme), Tiges de plante (enzymologie), Végétaux génétiquement modifiés (croissance et développement), Végétaux génétiquement modifiés (enzymologie), Xylème (croissance et développement).
- MESH :
- croissance et développement : Arbres, Populus, Végétaux génétiquement modifiés, Xylème.
- enzymologie : Arbres, Populus, Tiges de plante, Végétaux génétiquement modifiés.
- génétique : Arabidopsis, Glucosyltransferases.
- métabolisme : Amidon, Carbone, Glucosyltransferases, Saccharose.
- Métabolisme glucidique.
English descriptors
- KwdEn :
- Arabidopsis (genetics), Carbohydrate Metabolism (MeSH), Carbon (metabolism), Glucosyltransferases (genetics), Glucosyltransferases (metabolism), Plant Stems (enzymology), Plants, Genetically Modified (enzymology), Plants, Genetically Modified (growth & development), Populus (enzymology), Populus (growth & development), Starch (metabolism), Sucrose (metabolism), Trees (enzymology), Trees (growth & development), Xylem (growth & development).
- MESH :
- chemical , genetics : Glucosyltransferases.
- chemical , metabolism : Carbon, Glucosyltransferases, Starch, Sucrose.
- enzymology : Plant Stems, Plants, Genetically Modified, Populus, Trees.
- genetics : Arabidopsis.
- growth & development : Plants, Genetically Modified, Populus, Trees, Xylem.
- Carbohydrate Metabolism.
Abstract
The objective of this study was to manipulate the intracellular pools of sucrose, and investigate its role in regulating plant growth, phenology (leaf senescence and bud break) and fibre development. This objective was achieved by differentially expressing an Arabidopsis (Arabidopsis thaliana L. Heynh.) sucrose phosphate synthase (SPS) gene in hybrid poplar (Populus alba L.xPopulus grandidentata Michx.), a model system for tree biology with substantial industrial relevance in the context of short rotation forestry and a target bioenergy crop. Phenotypic differences were evident in the transgenic trees, as both the timing of bud flush and leaf senescence were altered compared to wild-type (WT) trees. Tree height and stem diameter were similar in WT and in the AtSPS transgenic trees, however, there were differences in the length of xylem fibres. Elevated concentrations of intracellular sucrose in both leaf and stem tissue of the transgenic trees are associated with a prolonged onset of senescence and an advancement in bud flush in the following spring. The association among sucrose content, tree phenology and elevated SPS gene expression implicates both enzyme and product in regulating poplar developmental processes.
DOI: 10.1093/treephys/tpp028
PubMed: 19429901
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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This objective was achieved by differentially expressing an Arabidopsis (Arabidopsis thaliana L. Heynh.) sucrose phosphate synthase (SPS) gene in hybrid poplar (Populus alba L.xPopulus grandidentata Michx.), a model system for tree biology with substantial industrial relevance in the context of short rotation forestry and a target bioenergy crop. Phenotypic differences were evident in the transgenic trees, as both the timing of bud flush and leaf senescence were altered compared to wild-type (WT) trees. Tree height and stem diameter were similar in WT and in the AtSPS transgenic trees, however, there were differences in the length of xylem fibres. Elevated concentrations of intracellular sucrose in both leaf and stem tissue of the transgenic trees are associated with a prolonged onset of senescence and an advancement in bud flush in the following spring. The association among sucrose content, tree phenology and elevated SPS gene expression implicates both enzyme and product in regulating poplar developmental processes.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19429901</PMID><DateCompleted><Year>2010</Year><Month>01</Month><Day>21</Day></DateCompleted><DateRevised><Year>2009</Year><Month>06</Month><Day>15</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0829-318X</ISSN><JournalIssue CitedMedium="Print"><Volume>29</Volume><Issue>7</Issue><PubDate><Year>2009</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Sucrose phosphate synthase expression influences poplar phenology.</ArticleTitle><Pagination><MedlinePgn>937-46</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpp028</ELocationID><Abstract><AbstractText>The objective of this study was to manipulate the intracellular pools of sucrose, and investigate its role in regulating plant growth, phenology (leaf senescence and bud break) and fibre development. This objective was achieved by differentially expressing an Arabidopsis (Arabidopsis thaliana L. Heynh.) sucrose phosphate synthase (SPS) gene in hybrid poplar (Populus alba L.xPopulus grandidentata Michx.), a model system for tree biology with substantial industrial relevance in the context of short rotation forestry and a target bioenergy crop. Phenotypic differences were evident in the transgenic trees, as both the timing of bud flush and leaf senescence were altered compared to wild-type (WT) trees. Tree height and stem diameter were similar in WT and in the AtSPS transgenic trees, however, there were differences in the length of xylem fibres. Elevated concentrations of intracellular sucrose in both leaf and stem tissue of the transgenic trees are associated with a prolonged onset of senescence and an advancement in bud flush in the following spring. The association among sucrose content, tree phenology and elevated SPS gene expression implicates both enzyme and product in regulating poplar developmental processes.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Park</LastName><ForeName>Ji-Young</ForeName><Initials>JY</Initials><AffiliationInfo><Affiliation>Department of Wood Science, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Canam</LastName><ForeName>Thomas</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Kang</LastName><ForeName>Kyu-Young</ForeName><Initials>KY</Initials></Author><Author ValidYN="Y"><LastName>Unda</LastName><ForeName>Faride</ForeName><Initials>F</Initials></Author><Author ValidYN="Y"><LastName>Mansfield</LastName><ForeName>Shawn D</ForeName><Initials>SD</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>2009</Year><Month>05</Month><Day>08</Day></ArticleDate></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>57-50-1</RegistryNumber><NameOfSubstance UI="D013395">Sucrose</NameOfSubstance></Chemical><Chemical><RegistryNumber>7440-44-0</RegistryNumber><NameOfSubstance UI="D002244">Carbon</NameOfSubstance></Chemical><Chemical><RegistryNumber>9005-25-8</RegistryNumber><NameOfSubstance UI="D013213">Starch</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 2.4.1.-</RegistryNumber><NameOfSubstance UI="D005964">Glucosyltransferases</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 2.4.1.14</RegistryNumber><NameOfSubstance 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MajorTopicYN="N">enzymology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D030821" MajorTopicYN="N">Plants, Genetically Modified</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="Y">enzymology</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013213" MajorTopicYN="N">Starch</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013395" MajorTopicYN="N">Sucrose</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="Y">enzymology</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D052584" MajorTopicYN="N">Xylem</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>5</Month><Day>12</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>5</Month><Day>12</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>1</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">19429901</ArticleId><ArticleId IdType="pii">tpp028</ArticleId><ArticleId IdType="doi">10.1093/treephys/tpp028</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li></country><region><li>Colombie-Britannique </li></region><settlement><li>Vancouver</li></settlement><orgName><li>Université de la Colombie-Britannique</li></orgName></list><tree><noCountry><name sortKey="Canam, Thomas" sort="Canam, Thomas" uniqKey="Canam T" first="Thomas" last="Canam">Thomas Canam</name><name sortKey="Kang, Kyu Young" sort="Kang, Kyu Young" uniqKey="Kang K" first="Kyu-Young" last="Kang">Kyu-Young Kang</name><name sortKey="Mansfield, Shawn D" sort="Mansfield, Shawn D" uniqKey="Mansfield S" first="Shawn D" last="Mansfield">Shawn D. Mansfield</name><name sortKey="Unda, Faride" sort="Unda, Faride" uniqKey="Unda F" first="Faride" last="Unda">Faride Unda</name></noCountry><country name="Canada"><region name="Colombie-Britannique "><name sortKey="Park, Ji Young" sort="Park, Ji Young" uniqKey="Park J" first="Ji-Young" last="Park">Ji-Young Park</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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