PoplarV1, Main, Exploration, bibRecord, 001A90

Transcriptional and Hormonal Regulation of Gravitropism of Woody Stems in Populus.

Identifieur interne : 001A90 ( Main/Exploration ); précédent : 001A89; suivant : 001A91

Transcriptional and Hormonal Regulation of Gravitropism of Woody Stems in Populus.

Auteurs : Suzanne Gerttula [États-Unis] ; Matthew Zinkgraf [États-Unis] ; Gloria K. Muday [États-Unis] ; Daniel R. Lewis [États-Unis] ; Farid M. Ibatullin [Russie] ; Harry Brumer [Canada] ; Foster Hart [Canada] ; Shawn D. Mansfield [Canada] ; Vladimir Filkov [États-Unis] ; Andrew Groover [États-Unis]

Source :

The Plant cell [ 1532-298X ] ; 2015.

RBID : pubmed:26410302

Descripteurs français

English descriptors

KwdEn :
- Cambium (cytology), Cambium (genetics), Cambium (physiology), Gene Expression Profiling (MeSH), Gibberellins (metabolism), Gravitropism (genetics), Homeodomain Proteins (genetics), Homeodomain Proteins (metabolism), Indoleacetic Acids (metabolism), Organ Specificity (MeSH), Plant Growth Regulators (metabolism), Plant Proteins (genetics), Plant Proteins (metabolism), Plant Stems (cytology), Plant Stems (genetics), Plant Stems (physiology), Plants, Genetically Modified (MeSH), Plastids (genetics), Plastids (physiology), Populus (cytology), Populus (genetics), Populus (physiology), Transcription Factors (genetics), Transcription Factors (metabolism), Trees (MeSH), Wood (cytology), Wood (genetics), Wood (physiology), Xylem (genetics), Xylem (physiology).
MESH :
- chemical , genetics : Homeodomain Proteins, Plant Proteins, Transcription Factors.
- chemical , metabolism : Gibberellins, Homeodomain Proteins, Indoleacetic Acids, Plant Growth Regulators, Plant Proteins, Transcription Factors.
- cytology : Cambium, Plant Stems, Populus, Wood.
- genetics : Cambium, Gravitropism, Plant Stems, Plastids, Populus, Wood, Xylem.
- physiology : Cambium, Plant Stems, Plastids, Populus, Wood, Xylem.
- Gene Expression Profiling, Organ Specificity, Plants, Genetically Modified, Trees.

Abstract

Angiosperm trees reorient their woody stems by asymmetrically producing a specialized xylem tissue, tension wood, which exerts a strong contractile force resulting in negative gravitropism of the stem. Here, we show, in Populus trees, that initial gravity perception and response occurs in specialized cells through sedimentation of starch-filled amyloplasts and relocalization of the auxin transport protein, PIN3. Gibberellic acid treatment stimulates the rate of tension wood formation and gravibending and enhances tissue-specific expression of an auxin-responsive reporter. Gravibending, maturation of contractile fibers, and gibberellic acid (GA) stimulation of tension wood formation are all sensitive to transcript levels of the Class I KNOX homeodomain transcription factor-encoding gene ARBORKNOX2 (ARK2). We generated genome-wide transcriptomes for trees in which gene expression was perturbed by gravistimulation, GA treatment, and modulation of ARK2 expression. These data were employed in computational analyses to model the transcriptional networks underlying wood formation, including identification and dissection of gene coexpression modules associated with wood phenotypes, GA response, and ARK2 binding to genes within modules. We propose a model for gravitropism in the woody stem in which the peripheral location of PIN3-expressing cells relative to the cambium results in auxin transport toward the cambium in the top of the stem, triggering tension wood formation, while transport away from the cambium in the bottom of the stem triggers opposite wood formation.

DOI: 10.1105/tpc.15.00531
PubMed: 26410302
PubMed Central: PMC4682325

Affiliations:

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Le document en format XML

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<series><title level="j">The Plant cell</title>
<idno type="eISSN">1532-298X</idno>
<imprint><date when="2015" type="published">2015</date>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cambium (cytology)</term>
<term>Cambium (genetics)</term>
<term>Cambium (physiology)</term>
<term>Gene Expression Profiling (MeSH)</term>
<term>Gibberellins (metabolism)</term>
<term>Gravitropism (genetics)</term>
<term>Homeodomain Proteins (genetics)</term>
<term>Homeodomain Proteins (metabolism)</term>
<term>Indoleacetic Acids (metabolism)</term>
<term>Organ Specificity (MeSH)</term>
<term>Plant Growth Regulators (metabolism)</term>
<term>Plant Proteins (genetics)</term>
<term>Plant Proteins (metabolism)</term>
<term>Plant Stems (cytology)</term>
<term>Plant Stems (genetics)</term>
<term>Plant Stems (physiology)</term>
<term>Plants, Genetically Modified (MeSH)</term>
<term>Plastids (genetics)</term>
<term>Plastids (physiology)</term>
<term>Populus (cytology)</term>
<term>Populus (genetics)</term>
<term>Populus (physiology)</term>
<term>Transcription Factors (genetics)</term>
<term>Transcription Factors (metabolism)</term>
<term>Trees (MeSH)</term>
<term>Wood (cytology)</term>
<term>Wood (genetics)</term>
<term>Wood (physiology)</term>
<term>Xylem (genetics)</term>
<term>Xylem (physiology)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Acides indolacétiques (métabolisme)</term>
<term>Analyse de profil d'expression de gènes (MeSH)</term>
<term>Arbres (MeSH)</term>
<term>Bois (cytologie)</term>
<term>Bois (génétique)</term>
<term>Bois (physiologie)</term>
<term>Cambium (cytologie)</term>
<term>Cambium (génétique)</term>
<term>Cambium (physiologie)</term>
<term>Facteur de croissance végétal (métabolisme)</term>
<term>Facteurs de transcription (génétique)</term>
<term>Facteurs de transcription (métabolisme)</term>
<term>Gibbérellines (métabolisme)</term>
<term>Gravitropisme (génétique)</term>
<term>Plastes (génétique)</term>
<term>Plastes (physiologie)</term>
<term>Populus (cytologie)</term>
<term>Populus (génétique)</term>
<term>Populus (physiologie)</term>
<term>Protéines végétales (génétique)</term>
<term>Protéines végétales (métabolisme)</term>
<term>Protéines à homéodomaine (génétique)</term>
<term>Protéines à homéodomaine (métabolisme)</term>
<term>Spécificité d'organe (MeSH)</term>
<term>Tiges de plante (cytologie)</term>
<term>Tiges de plante (génétique)</term>
<term>Tiges de plante (physiologie)</term>
<term>Végétaux génétiquement modifiés (MeSH)</term>
<term>Xylème (génétique)</term>
<term>Xylème (physiologie)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Homeodomain Proteins</term>
<term>Plant Proteins</term>
<term>Transcription Factors</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Gibberellins</term>
<term>Homeodomain Proteins</term>
<term>Indoleacetic Acids</term>
<term>Plant Growth Regulators</term>
<term>Plant Proteins</term>
<term>Transcription Factors</term>
</keywords>
<keywords scheme="MESH" qualifier="cytologie" xml:lang="fr"><term>Bois</term>
<term>Cambium</term>
<term>Populus</term>
<term>Tiges de plante</term>
</keywords>
<keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Cambium</term>
<term>Plant Stems</term>
<term>Populus</term>
<term>Wood</term>
</keywords>
<keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Cambium</term>
<term>Gravitropism</term>
<term>Plant Stems</term>
<term>Plastids</term>
<term>Populus</term>
<term>Wood</term>
<term>Xylem</term>
</keywords>
<keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Bois</term>
<term>Cambium</term>
<term>Facteurs de transcription</term>
<term>Gravitropisme</term>
<term>Plastes</term>
<term>Populus</term>
<term>Protéines végétales</term>
<term>Protéines à homéodomaine</term>
<term>Tiges de plante</term>
<term>Xylème</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Acides indolacétiques</term>
<term>Facteur de croissance végétal</term>
<term>Facteurs de transcription</term>
<term>Gibbérellines</term>
<term>Protéines végétales</term>
<term>Protéines à homéodomaine</term>
</keywords>
<keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Bois</term>
<term>Cambium</term>
<term>Plastes</term>
<term>Populus</term>
<term>Tiges de plante</term>
<term>Xylème</term>
</keywords>
<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Cambium</term>
<term>Plant Stems</term>
<term>Plastids</term>
<term>Populus</term>
<term>Wood</term>
<term>Xylem</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Gene Expression Profiling</term>
<term>Organ Specificity</term>
<term>Plants, Genetically Modified</term>
<term>Trees</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr"><term>Analyse de profil d'expression de gènes</term>
<term>Arbres</term>
<term>Spécificité d'organe</term>
<term>Végétaux génétiquement modifiés</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Angiosperm trees reorient their woody stems by asymmetrically producing a specialized xylem tissue, tension wood, which exerts a strong contractile force resulting in negative gravitropism of the stem. Here, we show, in Populus trees, that initial gravity perception and response occurs in specialized cells through sedimentation of starch-filled amyloplasts and relocalization of the auxin transport protein, PIN3. Gibberellic acid treatment stimulates the rate of tension wood formation and gravibending and enhances tissue-specific expression of an auxin-responsive reporter. Gravibending, maturation of contractile fibers, and gibberellic acid (GA) stimulation of tension wood formation are all sensitive to transcript levels of the Class I KNOX homeodomain transcription factor-encoding gene ARBORKNOX2 (ARK2). We generated genome-wide transcriptomes for trees in which gene expression was perturbed by gravistimulation, GA treatment, and modulation of ARK2 expression. These data were employed in computational analyses to model the transcriptional networks underlying wood formation, including identification and dissection of gene coexpression modules associated with wood phenotypes, GA response, and ARK2 binding to genes within modules. We propose a model for gravitropism in the woody stem in which the peripheral location of PIN3-expressing cells relative to the cambium results in auxin transport toward the cambium in the top of the stem, triggering tension wood formation, while transport away from the cambium in the bottom of the stem triggers opposite wood formation. </div>
</front>
</TEI>
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<DateCompleted><Year>2017</Year>
<Month>09</Month>
<Day>05</Day>
</DateCompleted>
<DateRevised><Year>2018</Year>
<Month>11</Month>
<Day>13</Day>
</DateRevised>
<Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1532-298X</ISSN>
<JournalIssue CitedMedium="Internet"><Volume>27</Volume>
<Issue>10</Issue>
<PubDate><Year>2015</Year>
<Month>Oct</Month>
</PubDate>
</JournalIssue>
<Title>The Plant cell</Title>
<ISOAbbreviation>Plant Cell</ISOAbbreviation>
</Journal>
<ArticleTitle>Transcriptional and Hormonal Regulation of Gravitropism of Woody Stems in Populus.</ArticleTitle>
<Pagination><MedlinePgn>2800-13</MedlinePgn>
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<ELocationID EIdType="doi" ValidYN="Y">10.1105/tpc.15.00531</ELocationID>
<Abstract><AbstractText>Angiosperm trees reorient their woody stems by asymmetrically producing a specialized xylem tissue, tension wood, which exerts a strong contractile force resulting in negative gravitropism of the stem. Here, we show, in Populus trees, that initial gravity perception and response occurs in specialized cells through sedimentation of starch-filled amyloplasts and relocalization of the auxin transport protein, PIN3. Gibberellic acid treatment stimulates the rate of tension wood formation and gravibending and enhances tissue-specific expression of an auxin-responsive reporter. Gravibending, maturation of contractile fibers, and gibberellic acid (GA) stimulation of tension wood formation are all sensitive to transcript levels of the Class I KNOX homeodomain transcription factor-encoding gene ARBORKNOX2 (ARK2). We generated genome-wide transcriptomes for trees in which gene expression was perturbed by gravistimulation, GA treatment, and modulation of ARK2 expression. These data were employed in computational analyses to model the transcriptional networks underlying wood formation, including identification and dissection of gene coexpression modules associated with wood phenotypes, GA response, and ARK2 binding to genes within modules. We propose a model for gravitropism in the woody stem in which the peripheral location of PIN3-expressing cells relative to the cambium results in auxin transport toward the cambium in the top of the stem, triggering tension wood formation, while transport away from the cambium in the bottom of the stem triggers opposite wood formation. </AbstractText>
<CopyrightInformation>© 2015 American Society of Plant Biologists. All rights reserved.</CopyrightInformation>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Gerttula</LastName>
<ForeName>Suzanne</ForeName>
<Initials>S</Initials>
<AffiliationInfo><Affiliation>US Forest Service, Pacific Southwest Research Station, Davis, California 95618.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Zinkgraf</LastName>
<ForeName>Matthew</ForeName>
<Initials>M</Initials>
<AffiliationInfo><Affiliation>US Forest Service, Pacific Southwest Research Station, Davis, California 95618.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Muday</LastName>
<ForeName>Gloria K</ForeName>
<Initials>GK</Initials>
<Identifier Source="ORCID">http://orcid.org/0000-0002-0377-4517</Identifier>
<AffiliationInfo><Affiliation>Wake Forest University, Winston-Salem, North Carolina 27106.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Lewis</LastName>
<ForeName>Daniel R</ForeName>
<Initials>DR</Initials>
<AffiliationInfo><Affiliation>Wake Forest University, Winston-Salem, North Carolina 27106.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Ibatullin</LastName>
<ForeName>Farid M</ForeName>
<Initials>FM</Initials>
<Identifier Source="ORCID">http://orcid.org/0000-0002-7660-4172</Identifier>
<AffiliationInfo><Affiliation>Division of Glycoscience, School of Biotechnology, Royal Institute of Technology, AlbaNova University Centre, S-106 91 Stockholm, Sweden Biophysics Division, Petersburg Nuclear Physics Institute, National Research Center Kurchatov Institute, Gatchina 188300, Russia.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Brumer</LastName>
<ForeName>Harry</ForeName>
<Initials>H</Initials>
<AffiliationInfo><Affiliation>Division of Glycoscience, School of Biotechnology, Royal Institute of Technology, AlbaNova University Centre, S-106 91 Stockholm, Sweden Michael Smith Laboratories and Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Hart</LastName>
<ForeName>Foster</ForeName>
<Initials>F</Initials>
<AffiliationInfo><Affiliation>Department of Wood Science, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Mansfield</LastName>
<ForeName>Shawn D</ForeName>
<Initials>SD</Initials>
<Identifier Source="ORCID">http://orcid.org/0000-0002-0175-554X</Identifier>
<AffiliationInfo><Affiliation>Department of Wood Science, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Filkov</LastName>
<ForeName>Vladimir</ForeName>
<Initials>V</Initials>
<AffiliationInfo><Affiliation>Department of Computer Science, University of California, Davis, California 95618.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Groover</LastName>
<ForeName>Andrew</ForeName>
<Initials>A</Initials>
<Identifier Source="ORCID">http://orcid.org/0000-0002-6686-5774</Identifier>
<AffiliationInfo><Affiliation>US Forest Service, Pacific Southwest Research Station, Davis, California 95618 Department of Plant Biology, University of California, Davis, California 95618 agroover@fs.fed.us.</Affiliation>
</AffiliationInfo>
</Author>
</AuthorList>
<Language>eng</Language>
<DataBankList CompleteYN="Y"><DataBank><DataBankName>BioProject</DataBankName>
<AccessionNumberList><AccessionNumber>PRJNA284622</AccessionNumber>
</AccessionNumberList>
</DataBank>
<DataBank><DataBankName>SRA</DataBankName>
<AccessionNumberList><AccessionNumber>SRP0533</AccessionNumber>
</AccessionNumberList>
</DataBank>
</DataBankList>
<GrantList CompleteYN="Y"><Grant><GrantID>S10 RR027303</GrantID>
<Acronym>RR</Acronym>
<Agency>NCRR NIH HHS</Agency>
<Country>United States</Country>
</Grant>
<Grant><GrantID>S10 RR029668</GrantID>
<Acronym>RR</Acronym>
<Agency>NCRR NIH HHS</Agency>
<Country>United States</Country>
</Grant>
<Grant><GrantID>S10RR027303</GrantID>
<Acronym>RR</Acronym>
<Agency>NCRR NIH HHS</Agency>
<Country>United States</Country>
</Grant>
<Grant><GrantID>S10RR029668</GrantID>
<Acronym>RR</Acronym>
<Agency>NCRR NIH HHS</Agency>
<Country>United States</Country>
</Grant>
</GrantList>
<PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType>
<PublicationType UI="D052061">Research Support, N.I.H., Extramural</PublicationType>
<PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType>
</PublicationTypeList>
<ArticleDate DateType="Electronic"><Year>2015</Year>
<Month>09</Month>
<Day>26</Day>
</ArticleDate>
</Article>
<MedlineJournalInfo><Country>United States</Country>
<MedlineTA>Plant Cell</MedlineTA>
<NlmUniqueID>9208688</NlmUniqueID>
<ISSNLinking>1040-4651</ISSNLinking>
</MedlineJournalInfo>
<ChemicalList><Chemical><RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D005875">Gibberellins</NameOfSubstance>
</Chemical>
<Chemical><RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D018398">Homeodomain Proteins</NameOfSubstance>
</Chemical>
<Chemical><RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D007210">Indoleacetic Acids</NameOfSubstance>
</Chemical>
<Chemical><RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D010937">Plant Growth Regulators</NameOfSubstance>
</Chemical>
<Chemical><RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D010940">Plant Proteins</NameOfSubstance>
</Chemical>
<Chemical><RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D014157">Transcription Factors</NameOfSubstance>
</Chemical>
<Chemical><RegistryNumber>BU0A7MWB6L</RegistryNumber>
<NameOfSubstance UI="C007842">gibberellic acid</NameOfSubstance>
</Chemical>
</ChemicalList>
<CitationSubset>IM</CitationSubset>
<CommentsCorrectionsList><CommentsCorrections RefType="CommentIn"><RefSource>Plant Cell. 2015 Oct;27(10):2674</RefSource>
<PMID Version="1">26419671</PMID>
</CommentsCorrections>
</CommentsCorrectionsList>
<MeshHeadingList><MeshHeading><DescriptorName UI="D058506" MajorTopicYN="N">Cambium</DescriptorName>
<QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D020869" MajorTopicYN="N">Gene Expression Profiling</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D005875" MajorTopicYN="N">Gibberellins</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D018522" MajorTopicYN="N">Gravitropism</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D018398" MajorTopicYN="N">Homeodomain Proteins</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D007210" MajorTopicYN="N">Indoleacetic Acids</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D009928" MajorTopicYN="N">Organ Specificity</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D010937" MajorTopicYN="N">Plant Growth Regulators</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D010940" MajorTopicYN="N">Plant Proteins</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName>
<QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D030821" MajorTopicYN="N">Plants, Genetically Modified</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D018087" MajorTopicYN="N">Plastids</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName>
<QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName>
<QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName>
<QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D014157" MajorTopicYN="N">Transcription Factors</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D014934" MajorTopicYN="N">Wood</DescriptorName>
<QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D052584" MajorTopicYN="N">Xylem</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName>
</MeshHeading>
</MeshHeadingList>
</MedlineCitation>
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<Month>06</Month>
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<affiliations><list><country><li>Canada</li>
<li>Russie</li>
<li>États-Unis</li>
</country>
<region><li>Californie</li>
<li>Caroline du Nord</li>
<li>Colombie-Britannique </li>
</region>
<settlement><li>Vancouver</li>
</settlement>
<orgName><li>Université de la Colombie-Britannique</li>
</orgName>
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<tree><country name="États-Unis"><region name="Californie"><name sortKey="Gerttula, Suzanne" sort="Gerttula, Suzanne" uniqKey="Gerttula S" first="Suzanne" last="Gerttula">Suzanne Gerttula</name>
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<name sortKey="Filkov, Vladimir" sort="Filkov, Vladimir" uniqKey="Filkov V" first="Vladimir" last="Filkov">Vladimir Filkov</name>
<name sortKey="Groover, Andrew" sort="Groover, Andrew" uniqKey="Groover A" first="Andrew" last="Groover">Andrew Groover</name>
<name sortKey="Lewis, Daniel R" sort="Lewis, Daniel R" uniqKey="Lewis D" first="Daniel R" last="Lewis">Daniel R. Lewis</name>
<name sortKey="Muday, Gloria K" sort="Muday, Gloria K" uniqKey="Muday G" first="Gloria K" last="Muday">Gloria K. Muday</name>
<name sortKey="Zinkgraf, Matthew" sort="Zinkgraf, Matthew" uniqKey="Zinkgraf M" first="Matthew" last="Zinkgraf">Matthew Zinkgraf</name>
</country>
<country name="Russie"><noRegion><name sortKey="Ibatullin, Farid M" sort="Ibatullin, Farid M" uniqKey="Ibatullin F" first="Farid M" last="Ibatullin">Farid M. Ibatullin</name>
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<country name="Canada"><noRegion><name sortKey="Brumer, Harry" sort="Brumer, Harry" uniqKey="Brumer H" first="Harry" last="Brumer">Harry Brumer</name>
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<name sortKey="Hart, Foster" sort="Hart, Foster" uniqKey="Hart F" first="Foster" last="Hart">Foster Hart</name>
<name sortKey="Mansfield, Shawn D" sort="Mansfield, Shawn D" uniqKey="Mansfield S" first="Shawn D" last="Mansfield">Shawn D. Mansfield</name>
</country>
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</affiliations>
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Transcriptional and Hormonal Regulation of Gravitropism of Woody Stems in Populus.

Transcriptional and Hormonal Regulation of Gravitropism of Woody Stems in Populus.

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