Transgenic poplars with reduced lignin show impaired xylem conductivity, growth efficiency and survival.
Identifieur interne : 002C64 ( Main/Exploration ); précédent : 002C63; suivant : 002C65Transgenic poplars with reduced lignin show impaired xylem conductivity, growth efficiency and survival.
Auteurs : Steven L. Voelker [États-Unis] ; Barbara Lachenbruch ; Frederick C. Meinzer ; Peter Kitin ; Steven H. StraussSource :
- Plant, cell & environment [ 1365-3040 ] ; 2011.
Descripteurs français
- KwdFr :
- ARN antisens (génétique), Biomasse (MeSH), Bois (métabolisme), Coenzyme A ligases (génétique), Coenzyme A ligases (métabolisme), Eau (métabolisme), Feuilles de plante (anatomie et histologie), Feuilles de plante (croissance et développement), Feuilles de plante (physiologie), Lignine (métabolisme), Phénomènes biomécaniques (physiologie), Populus (croissance et développement), Populus (enzymologie), Populus (génétique), Populus (physiologie), Régulation négative (MeSH), Tiges de plante (anatomie et histologie), Tiges de plante (croissance et développement), Tiges de plante (enzymologie), Tiges de plante (génétique), Transpiration des plantes (MeSH), Transport biologique (MeSH), Végétaux génétiquement modifiés (croissance et développement), Végétaux génétiquement modifiés (enzymologie), Végétaux génétiquement modifiés (physiologie), Xylème (anatomie et histologie), Xylème (physiologie).
- MESH :
- anatomie et histologie : Feuilles de plante, Tiges de plante, Xylème.
- croissance et développement : Feuilles de plante, Populus, Tiges de plante, Végétaux génétiquement modifiés.
- enzymologie : Populus, Tiges de plante, Végétaux génétiquement modifiés.
- génétique : ARN antisens, Coenzyme A ligases, Populus, Tiges de plante.
- métabolisme : Bois, Coenzyme A ligases, Eau, Lignine.
- physiologie : Feuilles de plante, Phénomènes biomécaniques, Populus, Végétaux génétiquement modifiés, Xylème.
- Biomasse, Régulation négative, Transpiration des plantes, Transport biologique.
English descriptors
- KwdEn :
- Biological Transport (MeSH), Biomass (MeSH), Biomechanical Phenomena (physiology), Coenzyme A Ligases (genetics), Coenzyme A Ligases (metabolism), Down-Regulation (MeSH), Lignin (metabolism), Plant Leaves (anatomy & histology), Plant Leaves (growth & development), Plant Leaves (physiology), Plant Stems (anatomy & histology), Plant Stems (enzymology), Plant Stems (genetics), Plant Stems (growth & development), Plant Transpiration (MeSH), Plants, Genetically Modified (enzymology), Plants, Genetically Modified (growth & development), Plants, Genetically Modified (physiology), Populus (enzymology), Populus (genetics), Populus (growth & development), Populus (physiology), RNA, Antisense (genetics), Water (metabolism), Wood (metabolism), Xylem (anatomy & histology), Xylem (physiology).
- MESH :
- chemical , genetics : Coenzyme A Ligases, RNA, Antisense.
- chemical , metabolism : Coenzyme A Ligases, Lignin, Water.
- anatomy & histology : Plant Leaves, Plant Stems, Xylem.
- enzymology : Plant Stems, Plants, Genetically Modified, Populus.
- genetics : Plant Stems, Populus.
- growth & development : Plant Leaves, Plant Stems, Plants, Genetically Modified, Populus.
- metabolism : Wood.
- physiology : Biomechanical Phenomena, Plant Leaves, Plants, Genetically Modified, Populus, Xylem.
- Biological Transport, Biomass, Down-Regulation, Plant Transpiration.
Abstract
We studied xylem anatomy and hydraulic architecture in 14 transgenic insertion events and a control line of hybrid poplar (Populus spp.) that varied in lignin content. Transgenic events had different levels of down-regulation of two genes encoding 4-coumarate:coenzyme A ligase (4CL). Two-year-old trees were characterized after growing either as free-standing trees in the field or as supported by stakes in a greenhouse. In free-standing trees, a 20 to 40% reduction in lignin content was associated with increased xylem vulnerability to embolism, shoot dieback and mortality. In staked trees, the decreased biomechanical demands on the xylem was associated with increases in the leaf area to sapwood area ratio and wood specific conductivity (k(s)), and with decreased leaf-specific conductivity (k(l)). These shifts in hydraulic architecture suggest that the bending stresses perceived during growth can affect traits important for xylem water transport. Severe 4CL-downregulation resulted in the patchy formation of discoloured, brown wood with irregular vessels in which water transport was strongly impeded. These severely 4CL-downregulated trees had significantly lower growth efficiency (biomass/leaf area). These results underscore the necessity of adequate lignification for mechanical support of the stem, water transport, tree growth and survival.
DOI: 10.1111/j.1365-3040.2010.02270.x
PubMed: 21309794
Affiliations:
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Strauss</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2011">2011</date><idno type="RBID">pubmed:21309794</idno><idno type="pmid">21309794</idno><idno type="doi">10.1111/j.1365-3040.2010.02270.x</idno><idno type="wicri:Area/Main/Corpus">002F30</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002F30</idno><idno type="wicri:Area/Main/Curation">002F30</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">002F30</idno><idno type="wicri:Area/Main/Exploration">002F30</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Transgenic poplars with reduced lignin show impaired xylem conductivity, growth efficiency and survival.</title><author><name sortKey="Voelker, Steven L" sort="Voelker, Steven L" uniqKey="Voelker S" first="Steven L" last="Voelker">Steven L. Voelker</name><affiliation wicri:level="2"><nlm:affiliation>Department of Wood Science and Engineering Department of Forest Ecosystems and Society, Oregon State University U.S.D.A. Forest Service, Forest Sciences Laboratory, 3200 Jefferson Way, Corvallis, OR 97330, USA. steve.voelker@oregonstate.edu</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Wood Science and Engineering Department of Forest Ecosystems and Society, Oregon State University U.S.D.A. Forest Service, Forest Sciences Laboratory, 3200 Jefferson Way, Corvallis, OR 97330</wicri:regionArea><placeName><region type="state">Oregon</region></placeName></affiliation></author><author><name sortKey="Lachenbruch, Barbara" sort="Lachenbruch, Barbara" uniqKey="Lachenbruch B" first="Barbara" last="Lachenbruch">Barbara Lachenbruch</name></author><author><name sortKey="Meinzer, Frederick C" sort="Meinzer, Frederick C" uniqKey="Meinzer F" first="Frederick C" last="Meinzer">Frederick C. 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Strauss</name></author></analytic><series><title level="j">Plant, cell & environment</title><idno type="eISSN">1365-3040</idno><imprint><date when="2011" type="published">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biological Transport (MeSH)</term><term>Biomass (MeSH)</term><term>Biomechanical Phenomena (physiology)</term><term>Coenzyme A Ligases (genetics)</term><term>Coenzyme A Ligases (metabolism)</term><term>Down-Regulation (MeSH)</term><term>Lignin (metabolism)</term><term>Plant Leaves (anatomy & histology)</term><term>Plant Leaves (growth & development)</term><term>Plant Leaves (physiology)</term><term>Plant Stems (anatomy & histology)</term><term>Plant Stems (enzymology)</term><term>Plant Stems (genetics)</term><term>Plant Stems (growth & development)</term><term>Plant Transpiration (MeSH)</term><term>Plants, Genetically Modified (enzymology)</term><term>Plants, Genetically Modified (growth & development)</term><term>Plants, Genetically Modified (physiology)</term><term>Populus (enzymology)</term><term>Populus (genetics)</term><term>Populus (growth & development)</term><term>Populus (physiology)</term><term>RNA, Antisense (genetics)</term><term>Water (metabolism)</term><term>Wood (metabolism)</term><term>Xylem (anatomy & histology)</term><term>Xylem (physiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>ARN antisens (génétique)</term><term>Biomasse (MeSH)</term><term>Bois (métabolisme)</term><term>Coenzyme A ligases (génétique)</term><term>Coenzyme A ligases (métabolisme)</term><term>Eau (métabolisme)</term><term>Feuilles de plante (anatomie et histologie)</term><term>Feuilles de plante (croissance et développement)</term><term>Feuilles de plante (physiologie)</term><term>Lignine (métabolisme)</term><term>Phénomènes biomécaniques (physiologie)</term><term>Populus (croissance et développement)</term><term>Populus (enzymologie)</term><term>Populus (génétique)</term><term>Populus (physiologie)</term><term>Régulation négative (MeSH)</term><term>Tiges de plante (anatomie et histologie)</term><term>Tiges de plante (croissance et développement)</term><term>Tiges de plante (enzymologie)</term><term>Tiges de plante (génétique)</term><term>Transpiration des plantes (MeSH)</term><term>Transport biologique (MeSH)</term><term>Végétaux génétiquement modifiés (croissance et développement)</term><term>Végétaux génétiquement modifiés (enzymologie)</term><term>Végétaux génétiquement modifiés (physiologie)</term><term>Xylème (anatomie et histologie)</term><term>Xylème (physiologie)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Coenzyme A Ligases</term><term>RNA, Antisense</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Coenzyme A Ligases</term><term>Lignin</term><term>Water</term></keywords><keywords scheme="MESH" qualifier="anatomie et histologie" xml:lang="fr"><term>Feuilles de plante</term><term>Tiges de plante</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Plant Leaves</term><term>Plant Stems</term><term>Xylem</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Feuilles de plante</term><term>Populus</term><term>Tiges de plante</term><term>Végétaux génétiquement modifiés</term></keywords><keywords scheme="MESH" qualifier="enzymologie" xml:lang="fr"><term>Populus</term><term>Tiges de plante</term><term>Végétaux génétiquement modifiés</term></keywords><keywords scheme="MESH" qualifier="enzymology" xml:lang="en"><term>Plant Stems</term><term>Plants, Genetically Modified</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Plant Stems</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Plant Leaves</term><term>Plant Stems</term><term>Plants, Genetically Modified</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>ARN antisens</term><term>Coenzyme A ligases</term><term>Populus</term><term>Tiges de plante</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Wood</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Bois</term><term>Coenzyme A ligases</term><term>Eau</term><term>Lignine</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Feuilles de plante</term><term>Phénomènes biomécaniques</term><term>Populus</term><term>Végétaux génétiquement modifiés</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Biomechanical Phenomena</term><term>Plant Leaves</term><term>Plants, Genetically Modified</term><term>Populus</term><term>Xylem</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biological Transport</term><term>Biomass</term><term>Down-Regulation</term><term>Plant Transpiration</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Biomasse</term><term>Régulation négative</term><term>Transpiration des plantes</term><term>Transport biologique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We studied xylem anatomy and hydraulic architecture in 14 transgenic insertion events and a control line of hybrid poplar (Populus spp.) that varied in lignin content. Transgenic events had different levels of down-regulation of two genes encoding 4-coumarate:coenzyme A ligase (4CL). Two-year-old trees were characterized after growing either as free-standing trees in the field or as supported by stakes in a greenhouse. In free-standing trees, a 20 to 40% reduction in lignin content was associated with increased xylem vulnerability to embolism, shoot dieback and mortality. In staked trees, the decreased biomechanical demands on the xylem was associated with increases in the leaf area to sapwood area ratio and wood specific conductivity (k(s)), and with decreased leaf-specific conductivity (k(l)). These shifts in hydraulic architecture suggest that the bending stresses perceived during growth can affect traits important for xylem water transport. Severe 4CL-downregulation resulted in the patchy formation of discoloured, brown wood with irregular vessels in which water transport was strongly impeded. These severely 4CL-downregulated trees had significantly lower growth efficiency (biomass/leaf area). These results underscore the necessity of adequate lignification for mechanical support of the stem, water transport, tree growth and survival.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">21309794</PMID><DateCompleted><Year>2011</Year><Month>06</Month><Day>28</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-3040</ISSN><JournalIssue CitedMedium="Internet"><Volume>34</Volume><Issue>4</Issue><PubDate><Year>2011</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Plant, cell & environment</Title><ISOAbbreviation>Plant Cell Environ</ISOAbbreviation></Journal><ArticleTitle>Transgenic poplars with reduced lignin show impaired xylem conductivity, growth efficiency and survival.</ArticleTitle><Pagination><MedlinePgn>655-68</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-3040.2010.02270.x</ELocationID><Abstract><AbstractText>We studied xylem anatomy and hydraulic architecture in 14 transgenic insertion events and a control line of hybrid poplar (Populus spp.) that varied in lignin content. Transgenic events had different levels of down-regulation of two genes encoding 4-coumarate:coenzyme A ligase (4CL). Two-year-old trees were characterized after growing either as free-standing trees in the field or as supported by stakes in a greenhouse. In free-standing trees, a 20 to 40% reduction in lignin content was associated with increased xylem vulnerability to embolism, shoot dieback and mortality. In staked trees, the decreased biomechanical demands on the xylem was associated with increases in the leaf area to sapwood area ratio and wood specific conductivity (k(s)), and with decreased leaf-specific conductivity (k(l)). These shifts in hydraulic architecture suggest that the bending stresses perceived during growth can affect traits important for xylem water transport. Severe 4CL-downregulation resulted in the patchy formation of discoloured, brown wood with irregular vessels in which water transport was strongly impeded. These severely 4CL-downregulated trees had significantly lower growth efficiency (biomass/leaf area). These results underscore the necessity of adequate lignification for mechanical support of the stem, water transport, tree growth and survival.</AbstractText><CopyrightInformation>© 2011 Blackwell Publishing Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Voelker</LastName><ForeName>Steven L</ForeName><Initials>SL</Initials><AffiliationInfo><Affiliation>Department of Wood Science and Engineering Department of Forest Ecosystems and Society, Oregon State University U.S.D.A. Forest Service, Forest Sciences Laboratory, 3200 Jefferson Way, Corvallis, OR 97330, USA. steve.voelker@oregonstate.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lachenbruch</LastName><ForeName>Barbara</ForeName><Initials>B</Initials></Author><Author ValidYN="Y"><LastName>Meinzer</LastName><ForeName>Frederick C</ForeName><Initials>FC</Initials></Author><Author ValidYN="Y"><LastName>Kitin</LastName><ForeName>Peter</ForeName><Initials>P</Initials></Author><Author ValidYN="Y"><LastName>Strauss</LastName><ForeName>Steven H</ForeName><Initials>SH</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2011</Year><Month>02</Month><Day>11</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Cell Environ</MedlineTA><NlmUniqueID>9309004</NlmUniqueID><ISSNLinking>0140-7791</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D016372">RNA, Antisense</NameOfSubstance></Chemical><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical><Chemical><RegistryNumber>9005-53-2</RegistryNumber><NameOfSubstance UI="D008031">Lignin</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 6.2.1.-</RegistryNumber><NameOfSubstance UI="D003066">Coenzyme A Ligases</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001692" MajorTopicYN="N">Biological Transport</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018533" MajorTopicYN="N">Biomass</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001696" MajorTopicYN="N">Biomechanical Phenomena</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003066" MajorTopicYN="N">Coenzyme A Ligases</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D015536" MajorTopicYN="N">Down-Regulation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008031" MajorTopicYN="N">Lignin</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018526" MajorTopicYN="N">Plant Transpiration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D030821" MajorTopicYN="N">Plants, Genetically Modified</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D016372" MajorTopicYN="N">RNA, Antisense</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014934" MajorTopicYN="N">Wood</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D052584" MajorTopicYN="N">Xylem</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>2</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>2</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2011</Year><Month>6</Month><Day>29</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">21309794</ArticleId><ArticleId IdType="doi">10.1111/j.1365-3040.2010.02270.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Oregon</li></region></list><tree><noCountry><name sortKey="Kitin, Peter" sort="Kitin, Peter" uniqKey="Kitin P" first="Peter" last="Kitin">Peter Kitin</name><name sortKey="Lachenbruch, Barbara" sort="Lachenbruch, Barbara" uniqKey="Lachenbruch B" first="Barbara" last="Lachenbruch">Barbara Lachenbruch</name><name sortKey="Meinzer, Frederick C" sort="Meinzer, Frederick C" uniqKey="Meinzer F" first="Frederick C" last="Meinzer">Frederick C. Meinzer</name><name sortKey="Strauss, Steven H" sort="Strauss, Steven H" uniqKey="Strauss S" first="Steven H" last="Strauss">Steven H. Strauss</name></noCountry><country name="États-Unis"><region name="Oregon"><name sortKey="Voelker, Steven L" sort="Voelker, Steven L" uniqKey="Voelker S" first="Steven L" last="Voelker">Steven L. Voelker</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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