PtrHB7, a class III HD-Zip gene, plays a critical role in regulation of vascular cambium differentiation in Populus.
Identifieur interne : 002744 ( Main/Corpus ); précédent : 002743; suivant : 002745PtrHB7, a class III HD-Zip gene, plays a critical role in regulation of vascular cambium differentiation in Populus.
Auteurs : Yingying Zhu ; Dongliang Song ; Jiayan Sun ; Xingfen Wang ; Laigeng LiSource :
- Molecular plant [ 1752-9867 ] ; 2013.
English descriptors
- KwdEn :
- Cambium (cytology), Cambium (genetics), Cambium (growth & development), Cell Differentiation (MeSH), Evolution, Molecular (MeSH), Gene Expression Regulation, Plant (MeSH), Homeodomain Proteins (genetics), Phloem (cytology), Plant Proteins (genetics), Populus (cytology), Populus (genetics), Populus (growth & development), Xylem (cytology).
- MESH :
- chemical , genetics : Homeodomain Proteins, Plant Proteins.
- cytology : Cambium, Phloem, Populus, Xylem.
- genetics : Cambium, Populus.
- growth & development : Cambium, Populus.
- Cell Differentiation, Evolution, Molecular, Gene Expression Regulation, Plant.
Abstract
A key question in the secondary growth of trees is how differentiation of the vascular cambium cells is directed to concurrently form two different tissues: xylem or phloem. class III homeodomain-leucine zipper (HD-Zip III) genes are known to play critical roles in the initiation, patterning, and differentiation of the vascular system in the process of primary and secondary growth. However, the mechanism of how these genes control secondary vascular differentiation is unknown. Here, we show that a Populus class III HD-Zip gene, PtrHB7, was preferentially expressed in cambial zone. PtrHB7-suppressed plants displayed significant changes in vascular tissues with a reduction in xylem but increase in phloem. Transcriptional analysis revealed that genes regulating xylem differentiation were down-regulated, whereas genes regulating phloem differentiation were up-regulated. Correspondingly, PtrHB7 overexpression enhanced differentiation of cambial cells toward xylem cells but inhibited phloem differentiation. PtrHB7 regulation on cambial cell differentiation was associated with its transcript abundance. Together, the results demonstrated that PtrHB7 plays a critical role in controlling a balanced differentiation between secondary xylem and phloem tissues in the process of Populus secondary growth in a dosage-dependent manner.
DOI: 10.1093/mp/sss164
PubMed: 23288865
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">PtrHB7, a class III HD-Zip gene, plays a critical role in regulation of vascular cambium differentiation in Populus.</title><author><name sortKey="Zhu, Yingying" sort="Zhu, Yingying" uniqKey="Zhu Y" first="Yingying" last="Zhu">Yingying Zhu</name><affiliation><nlm:affiliation>National Key Laboratory of Plant Molecular Genetics and Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Rd, Shanghai 200032, China.</nlm:affiliation></affiliation></author><author><name sortKey="Song, Dongliang" sort="Song, Dongliang" uniqKey="Song D" first="Dongliang" last="Song">Dongliang Song</name></author><author><name sortKey="Sun, Jiayan" sort="Sun, Jiayan" uniqKey="Sun J" first="Jiayan" last="Sun">Jiayan Sun</name></author><author><name sortKey="Wang, Xingfen" sort="Wang, Xingfen" uniqKey="Wang X" first="Xingfen" last="Wang">Xingfen Wang</name></author><author><name sortKey="Li, Laigeng" sort="Li, Laigeng" uniqKey="Li L" first="Laigeng" last="Li">Laigeng Li</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2013">2013</date><idno type="RBID">pubmed:23288865</idno><idno type="pmid">23288865</idno><idno type="doi">10.1093/mp/sss164</idno><idno type="wicri:Area/Main/Corpus">002744</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002744</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">PtrHB7, a class III HD-Zip gene, plays a critical role in regulation of vascular cambium differentiation in Populus.</title><author><name sortKey="Zhu, Yingying" sort="Zhu, Yingying" uniqKey="Zhu Y" first="Yingying" last="Zhu">Yingying Zhu</name><affiliation><nlm:affiliation>National Key Laboratory of Plant Molecular Genetics and Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Rd, Shanghai 200032, China.</nlm:affiliation></affiliation></author><author><name sortKey="Song, Dongliang" sort="Song, Dongliang" uniqKey="Song D" first="Dongliang" last="Song">Dongliang Song</name></author><author><name sortKey="Sun, Jiayan" sort="Sun, Jiayan" uniqKey="Sun J" first="Jiayan" last="Sun">Jiayan Sun</name></author><author><name sortKey="Wang, Xingfen" sort="Wang, Xingfen" uniqKey="Wang X" first="Xingfen" last="Wang">Xingfen Wang</name></author><author><name sortKey="Li, Laigeng" sort="Li, Laigeng" uniqKey="Li L" first="Laigeng" last="Li">Laigeng Li</name></author></analytic><series><title level="j">Molecular plant</title><idno type="eISSN">1752-9867</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cambium (cytology)</term><term>Cambium (genetics)</term><term>Cambium (growth & development)</term><term>Cell Differentiation (MeSH)</term><term>Evolution, Molecular (MeSH)</term><term>Gene Expression Regulation, Plant (MeSH)</term><term>Homeodomain Proteins (genetics)</term><term>Phloem (cytology)</term><term>Plant Proteins (genetics)</term><term>Populus (cytology)</term><term>Populus (genetics)</term><term>Populus (growth & development)</term><term>Xylem (cytology)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Homeodomain Proteins</term><term>Plant Proteins</term></keywords><keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Cambium</term><term>Phloem</term><term>Populus</term><term>Xylem</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Cambium</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Cambium</term><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Cell Differentiation</term><term>Evolution, Molecular</term><term>Gene Expression Regulation, Plant</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A key question in the secondary growth of trees is how differentiation of the vascular cambium cells is directed to concurrently form two different tissues: xylem or phloem. class III homeodomain-leucine zipper (HD-Zip III) genes are known to play critical roles in the initiation, patterning, and differentiation of the vascular system in the process of primary and secondary growth. However, the mechanism of how these genes control secondary vascular differentiation is unknown. Here, we show that a Populus class III HD-Zip gene, PtrHB7, was preferentially expressed in cambial zone. PtrHB7-suppressed plants displayed significant changes in vascular tissues with a reduction in xylem but increase in phloem. Transcriptional analysis revealed that genes regulating xylem differentiation were down-regulated, whereas genes regulating phloem differentiation were up-regulated. Correspondingly, PtrHB7 overexpression enhanced differentiation of cambial cells toward xylem cells but inhibited phloem differentiation. PtrHB7 regulation on cambial cell differentiation was associated with its transcript abundance. Together, the results demonstrated that PtrHB7 plays a critical role in controlling a balanced differentiation between secondary xylem and phloem tissues in the process of Populus secondary growth in a dosage-dependent manner. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23288865</PMID><DateCompleted><Year>2014</Year><Month>01</Month><Day>31</Day></DateCompleted><DateRevised><Year>2013</Year><Month>07</Month><Day>22</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1752-9867</ISSN><JournalIssue CitedMedium="Internet"><Volume>6</Volume><Issue>4</Issue><PubDate><Year>2013</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Molecular plant</Title><ISOAbbreviation>Mol Plant</ISOAbbreviation></Journal><ArticleTitle>PtrHB7, a class III HD-Zip gene, plays a critical role in regulation of vascular cambium differentiation in Populus.</ArticleTitle><Pagination><MedlinePgn>1331-43</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/mp/sss164</ELocationID><Abstract><AbstractText>A key question in the secondary growth of trees is how differentiation of the vascular cambium cells is directed to concurrently form two different tissues: xylem or phloem. class III homeodomain-leucine zipper (HD-Zip III) genes are known to play critical roles in the initiation, patterning, and differentiation of the vascular system in the process of primary and secondary growth. However, the mechanism of how these genes control secondary vascular differentiation is unknown. Here, we show that a Populus class III HD-Zip gene, PtrHB7, was preferentially expressed in cambial zone. PtrHB7-suppressed plants displayed significant changes in vascular tissues with a reduction in xylem but increase in phloem. Transcriptional analysis revealed that genes regulating xylem differentiation were down-regulated, whereas genes regulating phloem differentiation were up-regulated. Correspondingly, PtrHB7 overexpression enhanced differentiation of cambial cells toward xylem cells but inhibited phloem differentiation. PtrHB7 regulation on cambial cell differentiation was associated with its transcript abundance. Together, the results demonstrated that PtrHB7 plays a critical role in controlling a balanced differentiation between secondary xylem and phloem tissues in the process of Populus secondary growth in a dosage-dependent manner. </AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Zhu</LastName><ForeName>Yingying</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>National Key Laboratory of Plant Molecular Genetics and Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Rd, Shanghai 200032, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Song</LastName><ForeName>Dongliang</ForeName><Initials>D</Initials></Author><Author ValidYN="Y"><LastName>Sun</LastName><ForeName>Jiayan</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Wang</LastName><ForeName>Xingfen</ForeName><Initials>X</Initials></Author><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Laigeng</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><ArticleDate DateType="Electronic"><Year>2013</Year><Month>01</Month><Day>02</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Mol Plant</MedlineTA><NlmUniqueID>101465514</NlmUniqueID><ISSNLinking>1674-2052</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D018398">Homeodomain Proteins</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010940">Plant Proteins</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D058506" MajorTopicYN="N">Cambium</DescriptorName><QualifierName UI="Q000166" MajorTopicYN="Y">cytology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002454" MajorTopicYN="Y">Cell Differentiation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D019143" MajorTopicYN="N">Evolution, Molecular</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018506" MajorTopicYN="N">Gene Expression Regulation, Plant</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018398" MajorTopicYN="N">Homeodomain Proteins</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D052585" MajorTopicYN="N">Phloem</DescriptorName><QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010940" MajorTopicYN="N">Plant Proteins</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000166" MajorTopicYN="Y">cytology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D052584" MajorTopicYN="N">Xylem</DescriptorName><QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">HD-Zip III</Keyword><Keyword MajorTopicYN="N">Populus</Keyword><Keyword MajorTopicYN="N">cambium</Keyword><Keyword MajorTopicYN="N">fiber cell</Keyword><Keyword MajorTopicYN="N">secondary growth</Keyword><Keyword MajorTopicYN="N">xylem</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2013</Year><Month>1</Month><Day>5</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2013</Year><Month>1</Month><Day>5</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2014</Year><Month>2</Month><Day>1</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">23288865</ArticleId><ArticleId IdType="pii">S1674-2052(14)60920-5</ArticleId><ArticleId IdType="doi">10.1093/mp/sss164</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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