Lignification in poplar tension wood lignified cell wall layers.
Identifieur interne : 002999 ( Main/Exploration ); précédent : 002998; suivant : 002A00Lignification in poplar tension wood lignified cell wall layers.
Auteurs : Arata Yoshinaga [Japon] ; Hiroshi Kusumoto ; Françoise Laurans ; Gilles Pilate ; Keiji TakabeSource :
- Tree physiology [ 1758-4469 ] ; 2012.
Descripteurs français
- KwdFr :
- Bois (composition chimique), Bois (ultrastructure), Coloration et marquage (MeSH), Lignine (analyse), Lignine (composition chimique), Microscopie UV (MeSH), Microscopie électronique à transmission (MeSH), Paroi cellulaire (composition chimique), Paroi cellulaire (ultrastructure), Populus (composition chimique), Populus (ultrastructure), Pousses de plante (composition chimique), Pousses de plante (ultrastructure).
- MESH :
- analyse : Lignine.
- composition chimique : Bois, Lignine, Paroi cellulaire, Populus, Pousses de plante.
- ultrastructure : Bois, Coloration et marquage, Microscopie UV, Microscopie électronique à transmission, Paroi cellulaire, Populus, Pousses de plante.
English descriptors
- KwdEn :
- Cell Wall (chemistry), Cell Wall (ultrastructure), Lignin (analysis), Lignin (chemistry), Microscopy, Electron, Transmission (MeSH), Microscopy, Ultraviolet (MeSH), Plant Shoots (chemistry), Plant Shoots (ultrastructure), Populus (chemistry), Populus (ultrastructure), Staining and Labeling (MeSH), Wood (chemistry), Wood (ultrastructure).
- MESH :
- chemical , analysis : Lignin.
- chemistry : Cell Wall, Lignin, Plant Shoots, Populus, Wood.
- ultrastructure : Cell Wall, Plant Shoots, Populus, Wood.
- Microscopy, Electron, Transmission, Microscopy, Ultraviolet, Staining and Labeling.
Abstract
The lignification process in poplar tension wood lignified cell wall layers, specifically the S(1) and S(2) layers and the compound middle lamella (CML), was analysed using ultraviolet (UV) and transmission electron microscopy (TEM). Variations in the thickness of the gelatinous layer (G-layer) were also measured to clarify whether the lignified cell wall layers had completed their lignification before the deposition of G-layers, or, on the contrary, if lignification of these layers was still active during G-layer formation. Observations using UV microscopy and TEM indicated that both UV absorbance and the degree of potassium permanganate staining increased in the CML and S(1) and S(2) layers during G-layer formation, suggesting that the lignification of these lignified layers is still in progress during G-layer formation. In the context of the cell-autonomous monolignol synthesis hypothesis, our observations suggest that monolignols must go through the developing G-layer during the lignification of CML and the S(1) and S(2) layers. The alternative hypothesis of external synthesis (in the rays) does not require that monolignols go through the G-layer before being deposited in the CML, or the S(1) and S(2) layers. Interestingly, the previous observation of lignin in the poplar G-layer was not confirmed with the microscopy techniques used in the present study.
DOI: 10.1093/treephys/tps075
PubMed: 22933655
Affiliations:
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Kansai</region></placeName></affiliation></author><author><name sortKey="Kusumoto, Hiroshi" sort="Kusumoto, Hiroshi" uniqKey="Kusumoto H" first="Hiroshi" last="Kusumoto">Hiroshi Kusumoto</name></author><author><name sortKey="Laurans, Francoise" sort="Laurans, Francoise" uniqKey="Laurans F" first="Françoise" last="Laurans">Françoise Laurans</name></author><author><name sortKey="Pilate, Gilles" sort="Pilate, Gilles" uniqKey="Pilate G" first="Gilles" last="Pilate">Gilles Pilate</name></author><author><name sortKey="Takabe, Keiji" sort="Takabe, Keiji" uniqKey="Takabe K" first="Keiji" last="Takabe">Keiji Takabe</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2012">2012</date><idno type="RBID">pubmed:22933655</idno><idno type="pmid">22933655</idno><idno type="doi">10.1093/treephys/tps075</idno><idno type="wicri:Area/Main/Corpus">002907</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" 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Sakyo-ku, Kyoto 606-8502</wicri:regionArea><orgName type="university">Université de Kyoto</orgName><placeName><settlement type="city">Kyoto</settlement><region type="prefecture">Région du Kansai</region></placeName></affiliation></author><author><name sortKey="Kusumoto, Hiroshi" sort="Kusumoto, Hiroshi" uniqKey="Kusumoto H" first="Hiroshi" last="Kusumoto">Hiroshi Kusumoto</name></author><author><name sortKey="Laurans, Francoise" sort="Laurans, Francoise" uniqKey="Laurans F" first="Françoise" last="Laurans">Françoise Laurans</name></author><author><name sortKey="Pilate, Gilles" sort="Pilate, Gilles" uniqKey="Pilate G" first="Gilles" last="Pilate">Gilles Pilate</name></author><author><name sortKey="Takabe, Keiji" sort="Takabe, Keiji" uniqKey="Takabe K" first="Keiji" last="Takabe">Keiji Takabe</name></author></analytic><series><title level="j">Tree physiology</title><idno type="eISSN">1758-4469</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cell Wall (chemistry)</term><term>Cell Wall (ultrastructure)</term><term>Lignin (analysis)</term><term>Lignin (chemistry)</term><term>Microscopy, Electron, Transmission (MeSH)</term><term>Microscopy, Ultraviolet (MeSH)</term><term>Plant Shoots (chemistry)</term><term>Plant Shoots (ultrastructure)</term><term>Populus (chemistry)</term><term>Populus (ultrastructure)</term><term>Staining and Labeling (MeSH)</term><term>Wood (chemistry)</term><term>Wood (ultrastructure)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Bois (composition chimique)</term><term>Bois (ultrastructure)</term><term>Coloration et marquage (MeSH)</term><term>Lignine (analyse)</term><term>Lignine (composition chimique)</term><term>Microscopie UV (MeSH)</term><term>Microscopie électronique à transmission (MeSH)</term><term>Paroi cellulaire (composition chimique)</term><term>Paroi cellulaire (ultrastructure)</term><term>Populus (composition chimique)</term><term>Populus (ultrastructure)</term><term>Pousses de plante (composition chimique)</term><term>Pousses de plante (ultrastructure)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Lignin</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Lignine</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Cell Wall</term><term>Lignin</term><term>Plant Shoots</term><term>Populus</term><term>Wood</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Bois</term><term>Lignine</term><term>Paroi cellulaire</term><term>Populus</term><term>Pousses de plante</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="en"><term>Cell Wall</term><term>Plant Shoots</term><term>Populus</term><term>Wood</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Microscopy, Electron, Transmission</term><term>Microscopy, Ultraviolet</term><term>Staining and Labeling</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="fr"><term>Bois</term><term>Coloration et marquage</term><term>Microscopie UV</term><term>Microscopie électronique à transmission</term><term>Paroi cellulaire</term><term>Populus</term><term>Pousses de plante</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The lignification process in poplar tension wood lignified cell wall layers, specifically the S(1) and S(2) layers and the compound middle lamella (CML), was analysed using ultraviolet (UV) and transmission electron microscopy (TEM). Variations in the thickness of the gelatinous layer (G-layer) were also measured to clarify whether the lignified cell wall layers had completed their lignification before the deposition of G-layers, or, on the contrary, if lignification of these layers was still active during G-layer formation. Observations using UV microscopy and TEM indicated that both UV absorbance and the degree of potassium permanganate staining increased in the CML and S(1) and S(2) layers during G-layer formation, suggesting that the lignification of these lignified layers is still in progress during G-layer formation. In the context of the cell-autonomous monolignol synthesis hypothesis, our observations suggest that monolignols must go through the developing G-layer during the lignification of CML and the S(1) and S(2) layers. The alternative hypothesis of external synthesis (in the rays) does not require that monolignols go through the G-layer before being deposited in the CML, or the S(1) and S(2) layers. Interestingly, the previous observation of lignin in the poplar G-layer was not confirmed with the microscopy techniques used in the present study.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">22933655</PMID><DateCompleted><Year>2013</Year><Month>12</Month><Day>19</Day></DateCompleted><DateRevised><Year>2012</Year><Month>09</Month><Day>14</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN><JournalIssue CitedMedium="Internet"><Volume>32</Volume><Issue>9</Issue><PubDate><Year>2012</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Lignification in poplar tension wood lignified cell wall layers.</ArticleTitle><Pagination><MedlinePgn>1129-36</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tps075</ELocationID><Abstract><AbstractText>The lignification process in poplar tension wood lignified cell wall layers, specifically the S(1) and S(2) layers and the compound middle lamella (CML), was analysed using ultraviolet (UV) and transmission electron microscopy (TEM). Variations in the thickness of the gelatinous layer (G-layer) were also measured to clarify whether the lignified cell wall layers had completed their lignification before the deposition of G-layers, or, on the contrary, if lignification of these layers was still active during G-layer formation. Observations using UV microscopy and TEM indicated that both UV absorbance and the degree of potassium permanganate staining increased in the CML and S(1) and S(2) layers during G-layer formation, suggesting that the lignification of these lignified layers is still in progress during G-layer formation. In the context of the cell-autonomous monolignol synthesis hypothesis, our observations suggest that monolignols must go through the developing G-layer during the lignification of CML and the S(1) and S(2) layers. The alternative hypothesis of external synthesis (in the rays) does not require that monolignols go through the G-layer before being deposited in the CML, or the S(1) and S(2) layers. Interestingly, the previous observation of lignin in the poplar G-layer was not confirmed with the microscopy techniques used in the present study.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Yoshinaga</LastName><ForeName>Arata</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Laboratory of Tree Cell Biology, Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan. aryosshy@kais.kyoto-u.ac.jp</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kusumoto</LastName><ForeName>Hiroshi</ForeName><Initials>H</Initials></Author><Author ValidYN="Y"><LastName>Laurans</LastName><ForeName>Françoise</ForeName><Initials>F</Initials></Author><Author ValidYN="Y"><LastName>Pilate</LastName><ForeName>Gilles</ForeName><Initials>G</Initials></Author><Author ValidYN="Y"><LastName>Takabe</LastName><ForeName>Keiji</ForeName><Initials>K</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>2012</Year><Month>08</Month><Day>29</Day></ArticleDate></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>9005-53-2</RegistryNumber><NameOfSubstance UI="D008031">Lignin</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002473" MajorTopicYN="N">Cell Wall</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000648" MajorTopicYN="Y">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008031" MajorTopicYN="N">Lignin</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D046529" MajorTopicYN="N">Microscopy, Electron, Transmission</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008860" MajorTopicYN="N">Microscopy, Ultraviolet</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018520" MajorTopicYN="N">Plant Shoots</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013194" MajorTopicYN="N">Staining and Labeling</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014934" MajorTopicYN="N">Wood</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>8</Month><Day>31</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>8</Month><Day>31</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>12</Month><Day>20</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">22933655</ArticleId><ArticleId IdType="pii">tps075</ArticleId><ArticleId IdType="doi">10.1093/treephys/tps075</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Japon</li></country><region><li>Région du Kansai</li></region><settlement><li>Kyoto</li></settlement><orgName><li>Université de Kyoto</li></orgName></list><tree><noCountry><name sortKey="Kusumoto, Hiroshi" sort="Kusumoto, Hiroshi" uniqKey="Kusumoto H" first="Hiroshi" last="Kusumoto">Hiroshi Kusumoto</name><name sortKey="Laurans, Francoise" sort="Laurans, Francoise" uniqKey="Laurans F" first="Françoise" last="Laurans">Françoise Laurans</name><name sortKey="Pilate, Gilles" sort="Pilate, Gilles" uniqKey="Pilate G" first="Gilles" last="Pilate">Gilles Pilate</name><name sortKey="Takabe, Keiji" sort="Takabe, Keiji" uniqKey="Takabe K" first="Keiji" last="Takabe">Keiji Takabe</name></noCountry><country name="Japon"><region name="Région du Kansai"><name sortKey="Yoshinaga, Arata" sort="Yoshinaga, Arata" uniqKey="Yoshinaga A" first="Arata" last="Yoshinaga">Arata Yoshinaga</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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