Ratio of erythro and threo forms of beta-O-4 structures in tension wood lignin.
Identifieur interne : 004391 ( Main/Corpus ); précédent : 004390; suivant : 004392Ratio of erythro and threo forms of beta-O-4 structures in tension wood lignin.
Auteurs : Takuya Akiyama ; Yuji Matsumoto ; Takashi Okuyama ; Gyosuke MeshitsukaSource :
- Phytochemistry [ 0031-9422 ] ; 2003.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Lignin.
- chemical , biosynthesis : Lignin.
- chemical , chemistry : Lignin, Ozone.
- chemistry : Liriodendron, Plant Stems.
- Carbohydrate Conformation, Regression Analysis, Stereoisomerism.
Abstract
The ratio of erythro and threo forms of beta-O-4 structures in tension wood lignin was investigated by ozonation analysis of wood meal taken from various positions in the stem of yellow poplar (Liriodendron tulipifera). The proportion of the erythro form was higher in tension wood than in opposite wood, and the methoxyl group content showed a similar trend. The proportion of the erythro form and the methoxyl group content in the 7 positions in the stem lignin was correlated (correlation coefficient R=0.98), suggesting that the type of aromatic ring, syringyl or guaiacyl, is one of the factors which stereochemically controls the ratio of erythro and threo forms of beta-O-4 structures during lignin formation.
DOI: 10.1016/s0031-9422(03)00509-0
PubMed: 14568083
Links to Exploration step
pubmed:14568083Le document en format XML
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The proportion of the erythro form was higher in tension wood than in opposite wood, and the methoxyl group content showed a similar trend. The proportion of the erythro form and the methoxyl group content in the 7 positions in the stem lignin was correlated (correlation coefficient R=0.98), suggesting that the type of aromatic ring, syringyl or guaiacyl, is one of the factors which stereochemically controls the ratio of erythro and threo forms of beta-O-4 structures during lignin formation.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">14568083</PMID><DateCompleted><Year>2004</Year><Month>02</Month><Day>03</Day></DateCompleted><DateRevised><Year>2019</Year><Month>09</Month><Day>01</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0031-9422</ISSN><JournalIssue CitedMedium="Print"><Volume>64</Volume><Issue>6</Issue><PubDate><Year>2003</Year><Month>Nov</Month></PubDate></JournalIssue><Title>Phytochemistry</Title><ISOAbbreviation>Phytochemistry</ISOAbbreviation></Journal><ArticleTitle>Ratio of erythro and threo forms of beta-O-4 structures in tension wood lignin.</ArticleTitle><Pagination><MedlinePgn>1157-62</MedlinePgn></Pagination><Abstract><AbstractText>The ratio of erythro and threo forms of beta-O-4 structures in tension wood lignin was investigated by ozonation analysis of wood meal taken from various positions in the stem of yellow poplar (Liriodendron tulipifera). The proportion of the erythro form was higher in tension wood than in opposite wood, and the methoxyl group content showed a similar trend. The proportion of the erythro form and the methoxyl group content in the 7 positions in the stem lignin was correlated (correlation coefficient R=0.98), suggesting that the type of aromatic ring, syringyl or guaiacyl, is one of the factors which stereochemically controls the ratio of erythro and threo forms of beta-O-4 structures during lignin formation.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Akiyama</LastName><ForeName>Takuya</ForeName><Initials>T</Initials><AffiliationInfo><Affiliation>Laboratory of Wood Chemistry, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan. akiyamatakuya@hotmail.com</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Matsumoto</LastName><ForeName>Yuji</ForeName><Initials>Y</Initials></Author><Author ValidYN="Y"><LastName>Okuyama</LastName><ForeName>Takashi</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Meshitsuka</LastName><ForeName>Gyosuke</ForeName><Initials>G</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></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Phytochemistry</MedlineTA><NlmUniqueID>0151434</NlmUniqueID><ISSNLinking>0031-9422</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>66H7ZZK23N</RegistryNumber><NameOfSubstance UI="D010126">Ozone</NameOfSubstance></Chemical><Chemical><RegistryNumber>9005-53-2</RegistryNumber><NameOfSubstance UI="D008031">Lignin</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002236" MajorTopicYN="N">Carbohydrate Conformation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008031" MajorTopicYN="N">Lignin</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName><QualifierName UI="Q000096" MajorTopicYN="N">biosynthesis</QualifierName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D031567" MajorTopicYN="N">Liriodendron</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010126" MajorTopicYN="N">Ozone</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012044" MajorTopicYN="N">Regression Analysis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013237" MajorTopicYN="N">Stereoisomerism</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2003</Year><Month>10</Month><Day>22</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2004</Year><Month>2</Month><Day>5</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2003</Year><Month>10</Month><Day>22</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">14568083</ArticleId><ArticleId IdType="pii">S0031942203005090</ArticleId><ArticleId IdType="doi">10.1016/s0031-9422(03)00509-0</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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