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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<author><name sortKey="Akiyama, Takuya" sort="Akiyama, Takuya" uniqKey="Akiyama T" first="Takuya" last="Akiyama">Takuya Akiyama</name>
<affiliation><nlm: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</nlm:affiliation>
</affiliation>
</author>
<author><name sortKey="Matsumoto, Yuji" sort="Matsumoto, Yuji" uniqKey="Matsumoto Y" first="Yuji" last="Matsumoto">Yuji Matsumoto</name>
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<author><name sortKey="Okuyama, Takashi" sort="Okuyama, Takashi" uniqKey="Okuyama T" first="Takashi" last="Okuyama">Takashi Okuyama</name>
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<author><name sortKey="Meshitsuka, Gyosuke" sort="Meshitsuka, Gyosuke" uniqKey="Meshitsuka G" first="Gyosuke" last="Meshitsuka">Gyosuke Meshitsuka</name>
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<author><name sortKey="Akiyama, Takuya" sort="Akiyama, Takuya" uniqKey="Akiyama T" first="Takuya" last="Akiyama">Takuya Akiyama</name>
<affiliation><nlm: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</nlm:affiliation>
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<author><name sortKey="Matsumoto, Yuji" sort="Matsumoto, Yuji" uniqKey="Matsumoto Y" first="Yuji" last="Matsumoto">Yuji Matsumoto</name>
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<author><name sortKey="Okuyama, Takashi" sort="Okuyama, Takashi" uniqKey="Okuyama T" first="Takashi" last="Okuyama">Takashi Okuyama</name>
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<author><name sortKey="Meshitsuka, Gyosuke" sort="Meshitsuka, Gyosuke" uniqKey="Meshitsuka G" first="Gyosuke" last="Meshitsuka">Gyosuke Meshitsuka</name>
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<series><title level="j">Phytochemistry</title>
<idno type="ISSN">0031-9422</idno>
<imprint><date when="2003" type="published">2003</date>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Carbohydrate Conformation (MeSH)</term>
<term>Lignin (analysis)</term>
<term>Lignin (biosynthesis)</term>
<term>Lignin (chemistry)</term>
<term>Liriodendron (chemistry)</term>
<term>Ozone (chemistry)</term>
<term>Plant Stems (chemistry)</term>
<term>Regression Analysis (MeSH)</term>
<term>Stereoisomerism (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Lignin</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="biosynthesis" xml:lang="en"><term>Lignin</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Lignin</term>
<term>Ozone</term>
</keywords>
<keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Liriodendron</term>
<term>Plant Stems</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Carbohydrate Conformation</term>
<term>Regression Analysis</term>
<term>Stereoisomerism</term>
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<front><div type="abstract" xml:lang="en">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.</div>
</front>
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<Title>Phytochemistry</Title>
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<ArticleTitle>Ratio of erythro and threo forms of beta-O-4 structures in tension wood lignin.</ArticleTitle>
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<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>
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<ForeName>Takuya</ForeName>
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<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>
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<ChemicalList><Chemical><RegistryNumber>66H7ZZK23N</RegistryNumber>
<NameOfSubstance UI="D010126">Ozone</NameOfSubstance>
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<Chemical><RegistryNumber>9005-53-2</RegistryNumber>
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<MeshHeadingList><MeshHeading><DescriptorName UI="D002236" MajorTopicYN="N">Carbohydrate Conformation</DescriptorName>
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<MeshHeading><DescriptorName UI="D031567" MajorTopicYN="N">Liriodendron</DescriptorName>
<QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName>
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<MeshHeading><DescriptorName UI="D010126" MajorTopicYN="N">Ozone</DescriptorName>
<QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName>
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<MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName>
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<MeshHeading><DescriptorName UI="D012044" MajorTopicYN="N">Regression Analysis</DescriptorName>
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<MeshHeading><DescriptorName UI="D013237" MajorTopicYN="N">Stereoisomerism</DescriptorName>
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