Ultrastructure and mechanical properties of populus wood with reduced lignin content caused by transgenic down-regulation of cinnamate 4-hydroxylase.
Identifieur interne : 003060 ( Main/Exploration ); précédent : 003059; suivant : 003061Ultrastructure and mechanical properties of populus wood with reduced lignin content caused by transgenic down-regulation of cinnamate 4-hydroxylase.
Auteurs : Ingela Bjurhager [Suède] ; Anne-Mari Olsson ; Bo Zhang ; Lorenz Gerber ; Manoj Kumar ; Lars A. Berglund ; Ingo Burgert ; Björn Sundberg ; Lennart SalménSource :
- Biomacromolecules [ 1526-4602 ] ; 2010.
Descripteurs français
- KwdFr :
- ARN des plantes (génétique), ARN messager (génétique), Bois (composition chimique), Bois (génétique), Bois (ultrastructure), Chromatographie gazeuse-spectrométrie de masse (MeSH), Eau (composition chimique), Lignine (métabolisme), Microscopie à force atomique (MeSH), Polyosides (métabolisme), Populus (enzymologie), Populus (génétique), Populus (ultrastructure), RT-PCR (MeSH), Régulation négative (MeSH), Résistance à la traction (MeSH), Spectroscopie infrarouge à transformée de Fourier (MeSH), Température (MeSH), Trans-cinnamate 4-monooxygenase (analyse), Trans-cinnamate 4-monooxygenase (antagonistes et inhibiteurs), Trans-cinnamate 4-monooxygenase (génétique), Végétaux génétiquement modifiés (enzymologie), Végétaux génétiquement modifiés (génétique).
- MESH :
- analyse : Trans-cinnamate 4-monooxygenase.
- antagonistes et inhibiteurs : Trans-cinnamate 4-monooxygenase.
- composition chimique : Bois, Eau.
- enzymologie : Populus, Végétaux génétiquement modifiés.
- génétique : ARN des plantes, ARN messager, Bois, Populus, Trans-cinnamate 4-monooxygenase, Végétaux génétiquement modifiés.
- métabolisme : Lignine, Polyosides.
- ultrastructure : Bois, Chromatographie gazeuse-spectrométrie de masse, Microscopie à force atomique, Populus, RT-PCR, Régulation négative, Résistance à la traction, Spectroscopie infrarouge à transformée de Fourier, Température.
English descriptors
- KwdEn :
- Down-Regulation (MeSH), Gas Chromatography-Mass Spectrometry (MeSH), Lignin (metabolism), Microscopy, Atomic Force (MeSH), Plants, Genetically Modified (enzymology), Plants, Genetically Modified (genetics), Polysaccharides (metabolism), Populus (enzymology), Populus (genetics), Populus (ultrastructure), RNA, Messenger (genetics), RNA, Plant (genetics), Reverse Transcriptase Polymerase Chain Reaction (MeSH), Spectroscopy, Fourier Transform Infrared (MeSH), Temperature (MeSH), Tensile Strength (MeSH), Trans-Cinnamate 4-Monooxygenase (analysis), Trans-Cinnamate 4-Monooxygenase (antagonists & inhibitors), Trans-Cinnamate 4-Monooxygenase (genetics), Water (chemistry), Wood (chemistry), Wood (genetics), Wood (ultrastructure).
- MESH :
- chemical , analysis : Trans-Cinnamate 4-Monooxygenase.
- chemical , antagonists & inhibitors : Trans-Cinnamate 4-Monooxygenase.
- chemical , chemistry : Water.
- chemical , genetics : RNA, Messenger, RNA, Plant, Trans-Cinnamate 4-Monooxygenase.
- chemical , metabolism : Lignin, Polysaccharides.
- chemistry : Wood.
- enzymology : Plants, Genetically Modified, Populus.
- genetics : Plants, Genetically Modified, Populus, Wood.
- ultrastructure : Populus, Wood.
- Down-Regulation, Gas Chromatography-Mass Spectrometry, Microscopy, Atomic Force, Reverse Transcriptase Polymerase Chain Reaction, Spectroscopy, Fourier Transform Infrared, Temperature, Tensile Strength.
Abstract
Several key enzymes in lignin biosynthesis of Populus have been down-regulated by transgenic approaches to investigate their role in wood lignification and to explore their potential for lignin modification. Cinnamate 4-hydroxylase is an enzyme in the early phenylpropanoid pathway that has not yet been functionally analyzed in Populus . This study shows that down-regulation of cinnamate 4-hydroxylase reduced Klason lignin content by 30% with no significant change in syringyl to guaiacyl ratio. The lignin reduction resulted in ultrastructural differences of the wood and a 10% decrease in wood density. Mechanical properties investigated by tensile tests and dynamic mechanical analysis showed a decrease in stiffness, which could be explained by the lower density. The study demonstrates that a large modification in lignin content only has minor influences on tensile properties of wood in its axial direction and highlights the usefulness of wood modified beyond its natural variation by transgene technology in exploring the impact of wood biopolymer composition and ultrastructure on its material properties.
DOI: 10.1021/bm100487e
PubMed: 20831275
Affiliations:
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Berglund</name></author><author><name sortKey="Burgert, Ingo" sort="Burgert, Ingo" uniqKey="Burgert I" first="Ingo" last="Burgert">Ingo Burgert</name></author><author><name sortKey="Sundberg, Bjorn" sort="Sundberg, Bjorn" uniqKey="Sundberg B" first="Björn" last="Sundberg">Björn Sundberg</name></author><author><name sortKey="Salmen, Lennart" sort="Salmen, Lennart" uniqKey="Salmen L" first="Lennart" last="Salmén">Lennart Salmén</name></author></analytic><series><title level="j">Biomacromolecules</title><idno type="eISSN">1526-4602</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Down-Regulation (MeSH)</term><term>Gas Chromatography-Mass Spectrometry (MeSH)</term><term>Lignin (metabolism)</term><term>Microscopy, Atomic Force (MeSH)</term><term>Plants, Genetically Modified (enzymology)</term><term>Plants, Genetically Modified (genetics)</term><term>Polysaccharides (metabolism)</term><term>Populus (enzymology)</term><term>Populus (genetics)</term><term>Populus (ultrastructure)</term><term>RNA, Messenger (genetics)</term><term>RNA, Plant (genetics)</term><term>Reverse Transcriptase Polymerase Chain Reaction (MeSH)</term><term>Spectroscopy, Fourier Transform Infrared (MeSH)</term><term>Temperature (MeSH)</term><term>Tensile Strength (MeSH)</term><term>Trans-Cinnamate 4-Monooxygenase (analysis)</term><term>Trans-Cinnamate 4-Monooxygenase (antagonists & inhibitors)</term><term>Trans-Cinnamate 4-Monooxygenase (genetics)</term><term>Water (chemistry)</term><term>Wood (chemistry)</term><term>Wood (genetics)</term><term>Wood (ultrastructure)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>ARN des plantes (génétique)</term><term>ARN messager (génétique)</term><term>Bois (composition chimique)</term><term>Bois (génétique)</term><term>Bois (ultrastructure)</term><term>Chromatographie gazeuse-spectrométrie de masse (MeSH)</term><term>Eau (composition chimique)</term><term>Lignine (métabolisme)</term><term>Microscopie à force atomique (MeSH)</term><term>Polyosides (métabolisme)</term><term>Populus (enzymologie)</term><term>Populus (génétique)</term><term>Populus (ultrastructure)</term><term>RT-PCR (MeSH)</term><term>Régulation négative (MeSH)</term><term>Résistance à la traction (MeSH)</term><term>Spectroscopie infrarouge à transformée de Fourier (MeSH)</term><term>Température (MeSH)</term><term>Trans-cinnamate 4-monooxygenase (analyse)</term><term>Trans-cinnamate 4-monooxygenase (antagonistes et inhibiteurs)</term><term>Trans-cinnamate 4-monooxygenase (génétique)</term><term>Végétaux génétiquement modifiés (enzymologie)</term><term>Végétaux génétiquement modifiés (génétique)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Trans-Cinnamate 4-Monooxygenase</term></keywords><keywords scheme="MESH" type="chemical" qualifier="antagonists & inhibitors" xml:lang="en"><term>Trans-Cinnamate 4-Monooxygenase</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Water</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>RNA, Messenger</term><term>RNA, Plant</term><term>Trans-Cinnamate 4-Monooxygenase</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Lignin</term><term>Polysaccharides</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Trans-cinnamate 4-monooxygenase</term></keywords><keywords scheme="MESH" qualifier="antagonistes et inhibiteurs" xml:lang="fr"><term>Trans-cinnamate 4-monooxygenase</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Wood</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Bois</term><term>Eau</term></keywords><keywords scheme="MESH" qualifier="enzymologie" xml:lang="fr"><term>Populus</term><term>Végétaux génétiquement modifiés</term></keywords><keywords scheme="MESH" qualifier="enzymology" xml:lang="en"><term>Plants, Genetically Modified</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Plants, Genetically Modified</term><term>Populus</term><term>Wood</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>ARN des plantes</term><term>ARN messager</term><term>Bois</term><term>Populus</term><term>Trans-cinnamate 4-monooxygenase</term><term>Végétaux génétiquement modifiés</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Lignine</term><term>Polyosides</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="en"><term>Populus</term><term>Wood</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Down-Regulation</term><term>Gas Chromatography-Mass Spectrometry</term><term>Microscopy, Atomic Force</term><term>Reverse Transcriptase Polymerase Chain Reaction</term><term>Spectroscopy, Fourier Transform Infrared</term><term>Temperature</term><term>Tensile Strength</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="fr"><term>Bois</term><term>Chromatographie gazeuse-spectrométrie de masse</term><term>Microscopie à force atomique</term><term>Populus</term><term>RT-PCR</term><term>Régulation négative</term><term>Résistance à la traction</term><term>Spectroscopie infrarouge à transformée de Fourier</term><term>Température</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Several key enzymes in lignin biosynthesis of Populus have been down-regulated by transgenic approaches to investigate their role in wood lignification and to explore their potential for lignin modification. Cinnamate 4-hydroxylase is an enzyme in the early phenylpropanoid pathway that has not yet been functionally analyzed in Populus . This study shows that down-regulation of cinnamate 4-hydroxylase reduced Klason lignin content by 30% with no significant change in syringyl to guaiacyl ratio. The lignin reduction resulted in ultrastructural differences of the wood and a 10% decrease in wood density. Mechanical properties investigated by tensile tests and dynamic mechanical analysis showed a decrease in stiffness, which could be explained by the lower density. The study demonstrates that a large modification in lignin content only has minor influences on tensile properties of wood in its axial direction and highlights the usefulness of wood modified beyond its natural variation by transgene technology in exploring the impact of wood biopolymer composition and ultrastructure on its material properties.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">20831275</PMID><DateCompleted><Year>2011</Year><Month>01</Month><Day>13</Day></DateCompleted><DateRevised><Year>2019</Year><Month>12</Month><Day>10</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1526-4602</ISSN><JournalIssue CitedMedium="Internet"><Volume>11</Volume><Issue>9</Issue><PubDate><Year>2010</Year><Month>Sep</Month><Day>13</Day></PubDate></JournalIssue><Title>Biomacromolecules</Title><ISOAbbreviation>Biomacromolecules</ISOAbbreviation></Journal><ArticleTitle>Ultrastructure and mechanical properties of populus wood with reduced lignin content caused by transgenic down-regulation of cinnamate 4-hydroxylase.</ArticleTitle><Pagination><MedlinePgn>2359-65</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1021/bm100487e</ELocationID><Abstract><AbstractText>Several key enzymes in lignin biosynthesis of Populus have been down-regulated by transgenic approaches to investigate their role in wood lignification and to explore their potential for lignin modification. Cinnamate 4-hydroxylase is an enzyme in the early phenylpropanoid pathway that has not yet been functionally analyzed in Populus . This study shows that down-regulation of cinnamate 4-hydroxylase reduced Klason lignin content by 30% with no significant change in syringyl to guaiacyl ratio. The lignin reduction resulted in ultrastructural differences of the wood and a 10% decrease in wood density. Mechanical properties investigated by tensile tests and dynamic mechanical analysis showed a decrease in stiffness, which could be explained by the lower density. The study demonstrates that a large modification in lignin content only has minor influences on tensile properties of wood in its axial direction and highlights the usefulness of wood modified beyond its natural variation by transgene technology in exploring the impact of wood biopolymer composition and ultrastructure on its material properties.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Bjurhager</LastName><ForeName>Ingela</ForeName><Initials>I</Initials><AffiliationInfo><Affiliation>Department of Fiber and Polymer Technology, Division of Biocomposites, Royal Institute of Technology (KTH), SE-100 44 Stockholm, Sweden.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Olsson</LastName><ForeName>Anne-Mari</ForeName><Initials>AM</Initials></Author><Author ValidYN="Y"><LastName>Zhang</LastName><ForeName>Bo</ForeName><Initials>B</Initials></Author><Author ValidYN="Y"><LastName>Gerber</LastName><ForeName>Lorenz</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>Kumar</LastName><ForeName>Manoj</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Berglund</LastName><ForeName>Lars A</ForeName><Initials>LA</Initials></Author><Author ValidYN="Y"><LastName>Burgert</LastName><ForeName>Ingo</ForeName><Initials>I</Initials></Author><Author ValidYN="Y"><LastName>Sundberg</LastName><ForeName>Björn</ForeName><Initials>B</Initials></Author><Author ValidYN="Y"><LastName>Salmén</LastName><ForeName>Lennart</ForeName><Initials>L</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>United States</Country><MedlineTA>Biomacromolecules</MedlineTA><NlmUniqueID>100892849</NlmUniqueID><ISSNLinking>1525-7797</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D011134">Polysaccharides</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012333">RNA, Messenger</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D018749">RNA, Plant</NameOfSubstance></Chemical><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical><Chemical><RegistryNumber>8024-50-8</RegistryNumber><NameOfSubstance UI="C007916">hemicellulose</NameOfSubstance></Chemical><Chemical><RegistryNumber>9005-53-2</RegistryNumber><NameOfSubstance UI="D008031">Lignin</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 1.14.14.91</RegistryNumber><NameOfSubstance UI="D050564">Trans-Cinnamate 4-Monooxygenase</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D015536" MajorTopicYN="N">Down-Regulation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008401" MajorTopicYN="N">Gas Chromatography-Mass Spectrometry</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008031" MajorTopicYN="N">Lignin</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018625" MajorTopicYN="N">Microscopy, Atomic Force</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D030821" MajorTopicYN="N">Plants, Genetically Modified</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="Y">enzymology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011134" MajorTopicYN="N">Polysaccharides</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="Y">enzymology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012333" MajorTopicYN="N">RNA, Messenger</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018749" MajorTopicYN="N">RNA, Plant</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D020133" MajorTopicYN="N">Reverse Transcriptase Polymerase Chain Reaction</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017550" MajorTopicYN="N">Spectroscopy, Fourier Transform Infrared</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013696" MajorTopicYN="N">Temperature</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013718" MajorTopicYN="N">Tensile Strength</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D050564" MajorTopicYN="N">Trans-Cinnamate 4-Monooxygenase</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName><QualifierName UI="Q000037" MajorTopicYN="N">antagonists & inhibitors</QualifierName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014934" MajorTopicYN="N">Wood</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>9</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>9</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2011</Year><Month>1</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">20831275</ArticleId><ArticleId IdType="doi">10.1021/bm100487e</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Suède</li></country></list><tree><noCountry><name sortKey="Berglund, Lars A" sort="Berglund, Lars A" uniqKey="Berglund L" first="Lars A" last="Berglund">Lars A. Berglund</name><name sortKey="Burgert, Ingo" sort="Burgert, Ingo" uniqKey="Burgert I" first="Ingo" last="Burgert">Ingo Burgert</name><name sortKey="Gerber, Lorenz" sort="Gerber, Lorenz" uniqKey="Gerber L" first="Lorenz" last="Gerber">Lorenz Gerber</name><name sortKey="Kumar, Manoj" sort="Kumar, Manoj" uniqKey="Kumar M" first="Manoj" last="Kumar">Manoj Kumar</name><name sortKey="Olsson, Anne Mari" sort="Olsson, Anne Mari" uniqKey="Olsson A" first="Anne-Mari" last="Olsson">Anne-Mari Olsson</name><name sortKey="Salmen, Lennart" sort="Salmen, Lennart" uniqKey="Salmen L" first="Lennart" last="Salmén">Lennart Salmén</name><name sortKey="Sundberg, Bjorn" sort="Sundberg, Bjorn" uniqKey="Sundberg B" first="Björn" last="Sundberg">Björn Sundberg</name><name sortKey="Zhang, Bo" sort="Zhang, Bo" uniqKey="Zhang B" first="Bo" last="Zhang">Bo Zhang</name></noCountry><country name="Suède"><noRegion><name sortKey="Bjurhager, Ingela" sort="Bjurhager, Ingela" uniqKey="Bjurhager I" first="Ingela" last="Bjurhager">Ingela Bjurhager</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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