Functions of xyloglucan in plant cells.
Identifieur interne : 002E75 ( Main/Exploration ); précédent : 002E74; suivant : 002E76Functions of xyloglucan in plant cells.
Auteurs : Takahisa Hayashi [Japon] ; Rumi KaidaSource :
- Molecular plant [ 1752-9867 ] ; 2011.
Descripteurs français
- KwdFr :
- Arabidopsis (cytologie), Arabidopsis (enzymologie), Arabidopsis (génétique), Arabidopsis (métabolisme), Cellulase (génétique), Cellulase (métabolisme), Feuilles de plante (enzymologie), Feuilles de plante (génétique), Feuilles de plante (métabolisme), Glucanes (métabolisme), Glycosyltransferase (génétique), Glycosyltransferase (métabolisme), Paroi cellulaire (enzymologie), Paroi cellulaire (génétique), Paroi cellulaire (métabolisme), Protéines d'Arabidopsis (génétique), Protéines d'Arabidopsis (métabolisme), Xylanes (métabolisme).
- MESH :
- cytologie : Arabidopsis.
- enzymologie : Arabidopsis, Feuilles de plante, Paroi cellulaire.
- génétique : Arabidopsis, Cellulase, Feuilles de plante, Glycosyltransferase, Paroi cellulaire, Protéines d'Arabidopsis.
- métabolisme : Arabidopsis, Cellulase, Feuilles de plante, Glucanes, Glycosyltransferase, Paroi cellulaire, Protéines d'Arabidopsis, Xylanes.
English descriptors
- KwdEn :
- Arabidopsis (cytology), Arabidopsis (enzymology), Arabidopsis (genetics), Arabidopsis (metabolism), Arabidopsis Proteins (genetics), Arabidopsis Proteins (metabolism), Cell Wall (enzymology), Cell Wall (genetics), Cell Wall (metabolism), Cellulase (genetics), Cellulase (metabolism), Glucans (metabolism), Glycosyltransferases (genetics), Glycosyltransferases (metabolism), Plant Leaves (enzymology), Plant Leaves (genetics), Plant Leaves (metabolism), Xylans (metabolism).
- MESH :
- chemical , genetics : Arabidopsis Proteins, Cellulase, Glycosyltransferases.
- cytology : Arabidopsis.
- enzymology : Arabidopsis, Cell Wall, Plant Leaves.
- genetics : Arabidopsis, Cell Wall, Plant Leaves.
- metabolism : Arabidopsis, Arabidopsis Proteins, Cell Wall, Cellulase, Glucans, Glycosyltransferases, Plant Leaves, Xylans.
Abstract
While an increase in the number of xyloglucan tethers between the cellulose microfibrils in plant cell walls increases the walls' rigidity, the degradation of these tethers causes the walls to loosen. Degradation can occur either through the integration of xyloglucan oligosaccharides due to the action of xyloglucan endotransglucosylase or through direct hydrolysis due to the action of xyloglucanase. This is why the addition of xyloglucan and its fragment oligosaccharides causes plant tissue tension to increase and decrease so dramatically. Experiments involving the overexpression of xyloglucanase and cellulase have revealed the roles of xyloglucans in the walls. The degradation of wall xyloglucan in poplar by the transgenic expression of xyloglucanase, for example, not only accelerated stem elongation in the primary wall, but also blocked upright-stem gravitropism in the secondary wall. Overexpression of cellulase also reduced xyloglucan content in the walls as cellulose microfibrils were trimmed at their amorphous region, resulting in increased cell volume in Arabidopsis leaves and in sengon with disturbed leaf movements. The hemicellulose xyloglucan, in its function as a tether, plays a key role in the loosening and tightening of cellulose microfibrils: it enables the cell to change its shape in growth and differentiation zones and to retain its final shape after cell maturation.
DOI: 10.1093/mp/ssq063
PubMed: 20943810
Affiliations:
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University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo 156-8502</wicri:regionArea><placeName><settlement type="city">Tokyo</settlement><region type="région">Région de Kantō</region></placeName></affiliation></author><author><name sortKey="Kaida, Rumi" sort="Kaida, Rumi" uniqKey="Kaida R" first="Rumi" last="Kaida">Rumi Kaida</name></author></analytic><series><title level="j">Molecular plant</title><idno type="eISSN">1752-9867</idno><imprint><date when="2011" type="published">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Arabidopsis (cytology)</term><term>Arabidopsis (enzymology)</term><term>Arabidopsis (genetics)</term><term>Arabidopsis (metabolism)</term><term>Arabidopsis Proteins (genetics)</term><term>Arabidopsis Proteins (metabolism)</term><term>Cell Wall (enzymology)</term><term>Cell Wall (genetics)</term><term>Cell Wall (metabolism)</term><term>Cellulase (genetics)</term><term>Cellulase (metabolism)</term><term>Glucans (metabolism)</term><term>Glycosyltransferases (genetics)</term><term>Glycosyltransferases (metabolism)</term><term>Plant Leaves (enzymology)</term><term>Plant Leaves (genetics)</term><term>Plant Leaves (metabolism)</term><term>Xylans (metabolism)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Arabidopsis (cytologie)</term><term>Arabidopsis (enzymologie)</term><term>Arabidopsis (génétique)</term><term>Arabidopsis (métabolisme)</term><term>Cellulase (génétique)</term><term>Cellulase (métabolisme)</term><term>Feuilles de plante (enzymologie)</term><term>Feuilles de plante (génétique)</term><term>Feuilles de plante (métabolisme)</term><term>Glucanes (métabolisme)</term><term>Glycosyltransferase (génétique)</term><term>Glycosyltransferase (métabolisme)</term><term>Paroi cellulaire (enzymologie)</term><term>Paroi cellulaire (génétique)</term><term>Paroi cellulaire (métabolisme)</term><term>Protéines d'Arabidopsis (génétique)</term><term>Protéines d'Arabidopsis (métabolisme)</term><term>Xylanes (métabolisme)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Arabidopsis Proteins</term><term>Cellulase</term><term>Glycosyltransferases</term></keywords><keywords scheme="MESH" qualifier="cytologie" xml:lang="fr"><term>Arabidopsis</term></keywords><keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Arabidopsis</term></keywords><keywords scheme="MESH" qualifier="enzymologie" xml:lang="fr"><term>Arabidopsis</term><term>Feuilles de plante</term><term>Paroi cellulaire</term></keywords><keywords scheme="MESH" qualifier="enzymology" xml:lang="en"><term>Arabidopsis</term><term>Cell Wall</term><term>Plant Leaves</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Arabidopsis</term><term>Cell Wall</term><term>Plant Leaves</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Arabidopsis</term><term>Cellulase</term><term>Feuilles de plante</term><term>Glycosyltransferase</term><term>Paroi cellulaire</term><term>Protéines d'Arabidopsis</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Arabidopsis</term><term>Arabidopsis Proteins</term><term>Cell Wall</term><term>Cellulase</term><term>Glucans</term><term>Glycosyltransferases</term><term>Plant Leaves</term><term>Xylans</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Arabidopsis</term><term>Cellulase</term><term>Feuilles de plante</term><term>Glucanes</term><term>Glycosyltransferase</term><term>Paroi cellulaire</term><term>Protéines d'Arabidopsis</term><term>Xylanes</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">While an increase in the number of xyloglucan tethers between the cellulose microfibrils in plant cell walls increases the walls' rigidity, the degradation of these tethers causes the walls to loosen. Degradation can occur either through the integration of xyloglucan oligosaccharides due to the action of xyloglucan endotransglucosylase or through direct hydrolysis due to the action of xyloglucanase. This is why the addition of xyloglucan and its fragment oligosaccharides causes plant tissue tension to increase and decrease so dramatically. Experiments involving the overexpression of xyloglucanase and cellulase have revealed the roles of xyloglucans in the walls. The degradation of wall xyloglucan in poplar by the transgenic expression of xyloglucanase, for example, not only accelerated stem elongation in the primary wall, but also blocked upright-stem gravitropism in the secondary wall. Overexpression of cellulase also reduced xyloglucan content in the walls as cellulose microfibrils were trimmed at their amorphous region, resulting in increased cell volume in Arabidopsis leaves and in sengon with disturbed leaf movements. The hemicellulose xyloglucan, in its function as a tether, plays a key role in the loosening and tightening of cellulose microfibrils: it enables the cell to change its shape in growth and differentiation zones and to retain its final shape after cell maturation.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">20943810</PMID><DateCompleted><Year>2011</Year><Month>05</Month><Day>23</Day></DateCompleted><DateRevised><Year>2011</Year><Month>01</Month><Day>26</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1752-9867</ISSN><JournalIssue CitedMedium="Internet"><Volume>4</Volume><Issue>1</Issue><PubDate><Year>2011</Year><Month>Jan</Month></PubDate></JournalIssue><Title>Molecular plant</Title><ISOAbbreviation>Mol Plant</ISOAbbreviation></Journal><ArticleTitle>Functions of xyloglucan in plant cells.</ArticleTitle><Pagination><MedlinePgn>17-24</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/mp/ssq063</ELocationID><Abstract><AbstractText>While an increase in the number of xyloglucan tethers between the cellulose microfibrils in plant cell walls increases the walls' rigidity, the degradation of these tethers causes the walls to loosen. Degradation can occur either through the integration of xyloglucan oligosaccharides due to the action of xyloglucan endotransglucosylase or through direct hydrolysis due to the action of xyloglucanase. This is why the addition of xyloglucan and its fragment oligosaccharides causes plant tissue tension to increase and decrease so dramatically. Experiments involving the overexpression of xyloglucanase and cellulase have revealed the roles of xyloglucans in the walls. The degradation of wall xyloglucan in poplar by the transgenic expression of xyloglucanase, for example, not only accelerated stem elongation in the primary wall, but also blocked upright-stem gravitropism in the secondary wall. Overexpression of cellulase also reduced xyloglucan content in the walls as cellulose microfibrils were trimmed at their amorphous region, resulting in increased cell volume in Arabidopsis leaves and in sengon with disturbed leaf movements. The hemicellulose xyloglucan, in its function as a tether, plays a key role in the loosening and tightening of cellulose microfibrils: it enables the cell to change its shape in growth and differentiation zones and to retain its final shape after cell maturation.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Hayashi</LastName><ForeName>Takahisa</ForeName><Initials>T</Initials><AffiliationInfo><Affiliation>Department of Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo 156-8502, Japan. t4hayash@nodai.ac.jp</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kaida</LastName><ForeName>Rumi</ForeName><Initials>R</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="D016454">Review</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2010</Year><Month>10</Month><Day>13</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Mol Plant</MedlineTA><NlmUniqueID>101465514</NlmUniqueID><ISSNLinking>1674-2052</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D029681">Arabidopsis Proteins</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D005936">Glucans</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D014990">Xylans</NameOfSubstance></Chemical><Chemical><RegistryNumber>37294-28-3</RegistryNumber><NameOfSubstance UI="C029353">xyloglucan</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 2.4.-</RegistryNumber><NameOfSubstance UI="D016695">Glycosyltransferases</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 2.4.1.207</RegistryNumber><NameOfSubstance UI="C473049">xyloglucan - xyloglucosyltransferase</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 3.2.1.4</RegistryNumber><NameOfSubstance UI="D002480">Cellulase</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D017360" MajorTopicYN="N">Arabidopsis</DescriptorName><QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D029681" MajorTopicYN="N">Arabidopsis Proteins</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002473" MajorTopicYN="N">Cell Wall</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002480" MajorTopicYN="N">Cellulase</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005936" MajorTopicYN="N">Glucans</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D016695" MajorTopicYN="N">Glycosyltransferases</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014990" MajorTopicYN="N">Xylans</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>10</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>10</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2011</Year><Month>5</Month><Day>24</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">20943810</ArticleId><ArticleId IdType="pii">S1674-2052(14)60558-X</ArticleId><ArticleId IdType="doi">10.1093/mp/ssq063</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Japon</li></country><region><li>Région de Kantō</li></region><settlement><li>Tokyo</li></settlement></list><tree><noCountry><name sortKey="Kaida, Rumi" sort="Kaida, Rumi" uniqKey="Kaida R" first="Rumi" last="Kaida">Rumi Kaida</name></noCountry><country name="Japon"><region name="Région de Kantō"><name sortKey="Hayashi, Takahisa" sort="Hayashi, Takahisa" uniqKey="Hayashi T" first="Takahisa" last="Hayashi">Takahisa Hayashi</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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