PoplarV1, Main, Exploration, bibRecord, 000C15

Tubulins, rhythms and cell walls in poplar leaves: it's all in the timing.

Identifieur interne : 000C15 ( Main/Exploration ); précédent : 000C14; suivant : 000C16

Tubulins, rhythms and cell walls in poplar leaves: it's all in the timing.

Auteurs : Scott A. Harding [États-Unis] ; Hao Hu [États-Unis] ; Batbayar Nyamdari [États-Unis] ; Liang-Jiao Xue [États-Unis] ; Radnaa Naran [États-Unis] ; Chung-Jui Tsai [États-Unis]

Source :

Tree physiology [ 1758-4469 ] ; 2018.

RBID : pubmed:28927239

Descripteurs français

KwdFr :
- Feuilles de plante (génétique), Feuilles de plante (physiologie), Paroi cellulaire (métabolisme), Pectine (métabolisme), Polyosides (métabolisme), Populus (génétique), Populus (physiologie), Protéines végétales (génétique), Protéines végétales (métabolisme), Rythme circadien (génétique), Rythme circadien (physiologie), Régulation de l'expression des gènes végétaux (MeSH), Tubuline (génétique), Tubuline (métabolisme).
MESH :
- génétique : Feuilles de plante, Populus, Protéines végétales, Rythme circadien, Tubuline.
- métabolisme : Paroi cellulaire, Pectine, Polyosides, Protéines végétales, Tubuline.
- physiologie : Feuilles de plante, Populus, Rythme circadien.
- Régulation de l'expression des gènes végétaux.

English descriptors

KwdEn :
- Cell Wall (metabolism), Circadian Rhythm (genetics), Circadian Rhythm (physiology), Gene Expression Regulation, Plant (MeSH), Pectins (metabolism), Plant Leaves (genetics), Plant Leaves (physiology), Plant Proteins (genetics), Plant Proteins (metabolism), Polysaccharides (metabolism), Populus (genetics), Populus (physiology), Tubulin (genetics), Tubulin (metabolism).
MESH :
- chemical , genetics : Plant Proteins, Tubulin.
- chemical , metabolism : Pectins, Plant Proteins, Polysaccharides, Tubulin.
- genetics : Circadian Rhythm, Plant Leaves, Populus.
- metabolism : Cell Wall.
- physiology : Circadian Rhythm, Plant Leaves, Populus.
- Gene Expression Regulation, Plant.

Abstract

Plant cell walls exhibit architectural and compositional changes throughout their development and in response to external cues. While tubulins are involved in cell wall biogenesis, much remains unknown about the scope of their involvement during the orchestration of this resource-demanding process. A transgenic approach coupled with cell wall compositional analysis, RNA-seq and mining of publicly available diurnal gene expression data was used to assess the involvement of tubulins in poplar leaf cell wall biogenesis. Leaf cell walls of transgenic poplar lines with constitutive overexpression of α-tubulin (TUA) exhibited an increased abundance of homogalacturonan, along with a reduction in xylose. These changes were traced to altered expression of UDP-glucuronic acid decarboxylase (GADC) in the transgenic leaves. A model is postulated by which altered diurnal control of TUA through its constitutive overexpression led to a metabolic tradeoff affecting cellular utilization of GADC substrate UDP-glucuronic acid. While there were no effects on cellulose, hemicellulose or lignin abundance, subtle effects on hemicellulose composition and associated gene expression were noted. In addition, expression and enzymatic activity of pectin methylesterase (PME) decreased in the transgenic leaves. The change is discussed in a context of increased levels of PME substrate homogalacturonan, slow stomatal kinetics and the fate of PME product methanol. Since stomatal opening and closing depend on fundamentally contrasting microtubule dynamics, the slowing of both processes in the transgenic lines as previously reported appears to be directly related to underlying cell wall compositional changes that were caused by tubulin manipulation.

DOI: 10.1093/treephys/tpx104
PubMed: 28927239

Affiliations:

Links toward previous steps (curation, corpus...)

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Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cell Wall (metabolism)</term>
<term>Circadian Rhythm (genetics)</term>
<term>Circadian Rhythm (physiology)</term>
<term>Gene Expression Regulation, Plant (MeSH)</term>
<term>Pectins (metabolism)</term>
<term>Plant Leaves (genetics)</term>
<term>Plant Leaves (physiology)</term>
<term>Plant Proteins (genetics)</term>
<term>Plant Proteins (metabolism)</term>
<term>Polysaccharides (metabolism)</term>
<term>Populus (genetics)</term>
<term>Populus (physiology)</term>
<term>Tubulin (genetics)</term>
<term>Tubulin (metabolism)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Feuilles de plante (génétique)</term>
<term>Feuilles de plante (physiologie)</term>
<term>Paroi cellulaire (métabolisme)</term>
<term>Pectine (métabolisme)</term>
<term>Polyosides (métabolisme)</term>
<term>Populus (génétique)</term>
<term>Populus (physiologie)</term>
<term>Protéines végétales (génétique)</term>
<term>Protéines végétales (métabolisme)</term>
<term>Rythme circadien (génétique)</term>
<term>Rythme circadien (physiologie)</term>
<term>Régulation de l'expression des gènes végétaux (MeSH)</term>
<term>Tubuline (génétique)</term>
<term>Tubuline (métabolisme)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Plant Proteins</term>
<term>Tubulin</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Pectins</term>
<term>Plant Proteins</term>
<term>Polysaccharides</term>
<term>Tubulin</term>
</keywords>
<keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Circadian Rhythm</term>
<term>Plant Leaves</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Feuilles de plante</term>
<term>Populus</term>
<term>Protéines végétales</term>
<term>Rythme circadien</term>
<term>Tubuline</term>
</keywords>
<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Cell Wall</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Paroi cellulaire</term>
<term>Pectine</term>
<term>Polyosides</term>
<term>Protéines végétales</term>
<term>Tubuline</term>
</keywords>
<keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Feuilles de plante</term>
<term>Populus</term>
<term>Rythme circadien</term>
</keywords>
<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Circadian Rhythm</term>
<term>Plant Leaves</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Gene Expression Regulation, Plant</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr"><term>Régulation de l'expression des gènes végétaux</term>
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<front><div type="abstract" xml:lang="en">Plant cell walls exhibit architectural and compositional changes throughout their development and in response to external cues. While tubulins are involved in cell wall biogenesis, much remains unknown about the scope of their involvement during the orchestration of this resource-demanding process. A transgenic approach coupled with cell wall compositional analysis, RNA-seq and mining of publicly available diurnal gene expression data was used to assess the involvement of tubulins in poplar leaf cell wall biogenesis. Leaf cell walls of transgenic poplar lines with constitutive overexpression of α-tubulin (TUA) exhibited an increased abundance of homogalacturonan, along with a reduction in xylose. These changes were traced to altered expression of UDP-glucuronic acid decarboxylase (GADC) in the transgenic leaves. A model is postulated by which altered diurnal control of TUA through its constitutive overexpression led to a metabolic tradeoff affecting cellular utilization of GADC substrate UDP-glucuronic acid. While there were no effects on cellulose, hemicellulose or lignin abundance, subtle effects on hemicellulose composition and associated gene expression were noted. In addition, expression and enzymatic activity of pectin methylesterase (PME) decreased in the transgenic leaves. The change is discussed in a context of increased levels of PME substrate homogalacturonan, slow stomatal kinetics and the fate of PME product methanol. Since stomatal opening and closing depend on fundamentally contrasting microtubule dynamics, the slowing of both processes in the transgenic lines as previously reported appears to be directly related to underlying cell wall compositional changes that were caused by tubulin manipulation.</div>
</front>
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<DateCompleted><Year>2018</Year>
<Month>10</Month>
<Day>24</Day>
</DateCompleted>
<DateRevised><Year>2018</Year>
<Month>12</Month>
<Day>02</Day>
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<JournalIssue CitedMedium="Internet"><Volume>38</Volume>
<Issue>3</Issue>
<PubDate><Year>2018</Year>
<Month>03</Month>
<Day>01</Day>
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<Title>Tree physiology</Title>
<ISOAbbreviation>Tree Physiol</ISOAbbreviation>
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<ArticleTitle>Tubulins, rhythms and cell walls in poplar leaves: it's all in the timing.</ArticleTitle>
<Pagination><MedlinePgn>397-408</MedlinePgn>
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<ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpx104</ELocationID>
<Abstract><AbstractText>Plant cell walls exhibit architectural and compositional changes throughout their development and in response to external cues. While tubulins are involved in cell wall biogenesis, much remains unknown about the scope of their involvement during the orchestration of this resource-demanding process. A transgenic approach coupled with cell wall compositional analysis, RNA-seq and mining of publicly available diurnal gene expression data was used to assess the involvement of tubulins in poplar leaf cell wall biogenesis. Leaf cell walls of transgenic poplar lines with constitutive overexpression of α-tubulin (TUA) exhibited an increased abundance of homogalacturonan, along with a reduction in xylose. These changes were traced to altered expression of UDP-glucuronic acid decarboxylase (GADC) in the transgenic leaves. A model is postulated by which altered diurnal control of TUA through its constitutive overexpression led to a metabolic tradeoff affecting cellular utilization of GADC substrate UDP-glucuronic acid. While there were no effects on cellulose, hemicellulose or lignin abundance, subtle effects on hemicellulose composition and associated gene expression were noted. In addition, expression and enzymatic activity of pectin methylesterase (PME) decreased in the transgenic leaves. The change is discussed in a context of increased levels of PME substrate homogalacturonan, slow stomatal kinetics and the fate of PME product methanol. Since stomatal opening and closing depend on fundamentally contrasting microtubule dynamics, the slowing of both processes in the transgenic lines as previously reported appears to be directly related to underlying cell wall compositional changes that were caused by tubulin manipulation.</AbstractText>
</Abstract>
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<Initials>SA</Initials>
<AffiliationInfo><Affiliation>Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USA.</Affiliation>
</AffiliationInfo>
<AffiliationInfo><Affiliation>Department of Genetics, University of Georgia, Athens, GA 30602, USA.</Affiliation>
</AffiliationInfo>
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<Author ValidYN="Y"><LastName>Hu</LastName>
<ForeName>Hao</ForeName>
<Initials>H</Initials>
<AffiliationInfo><Affiliation>Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USA.</Affiliation>
</AffiliationInfo>
<AffiliationInfo><Affiliation>Department of Genetics, University of Georgia, Athens, GA 30602, USA.</Affiliation>
</AffiliationInfo>
<AffiliationInfo><Affiliation>Department of Plant Biology, Ecology & Evolution, Oklahoma State University, Stillwater, OK 74078, USA.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Nyamdari</LastName>
<ForeName>Batbayar</ForeName>
<Initials>B</Initials>
<AffiliationInfo><Affiliation>Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USA.</Affiliation>
</AffiliationInfo>
<AffiliationInfo><Affiliation>Department of Genetics, University of Georgia, Athens, GA 30602, USA.</Affiliation>
</AffiliationInfo>
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<Author ValidYN="Y"><LastName>Xue</LastName>
<ForeName>Liang-Jiao</ForeName>
<Initials>LJ</Initials>
<AffiliationInfo><Affiliation>Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USA.</Affiliation>
</AffiliationInfo>
<AffiliationInfo><Affiliation>Department of Genetics, University of Georgia, Athens, GA 30602, USA.</Affiliation>
</AffiliationInfo>
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<Author ValidYN="Y"><LastName>Naran</LastName>
<ForeName>Radnaa</ForeName>
<Initials>R</Initials>
<AffiliationInfo><Affiliation>Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, USA.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Tsai</LastName>
<ForeName>Chung-Jui</ForeName>
<Initials>CJ</Initials>
<AffiliationInfo><Affiliation>Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USA.</Affiliation>
</AffiliationInfo>
<AffiliationInfo><Affiliation>Department of Genetics, University of Georgia, Athens, GA 30602, USA.</Affiliation>
</AffiliationInfo>
</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>
</Article>
<MedlineJournalInfo><Country>Canada</Country>
<MedlineTA>Tree Physiol</MedlineTA>
<NlmUniqueID>100955338</NlmUniqueID>
<ISSNLinking>0829-318X</ISSNLinking>
</MedlineJournalInfo>
<ChemicalList><Chemical><RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D010940">Plant Proteins</NameOfSubstance>
</Chemical>
<Chemical><RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D011134">Polysaccharides</NameOfSubstance>
</Chemical>
<Chemical><RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D014404">Tubulin</NameOfSubstance>
</Chemical>
<Chemical><RegistryNumber>8024-50-8</RegistryNumber>
<NameOfSubstance UI="C007916">hemicellulose</NameOfSubstance>
</Chemical>
<Chemical><RegistryNumber>89NA02M4RX</RegistryNumber>
<NameOfSubstance UI="D010368">Pectins</NameOfSubstance>
</Chemical>
</ChemicalList>
<CitationSubset>IM</CitationSubset>
<MeshHeadingList><MeshHeading><DescriptorName UI="D002473" MajorTopicYN="N">Cell Wall</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D002940" MajorTopicYN="N">Circadian Rhythm</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D018506" MajorTopicYN="Y">Gene Expression Regulation, Plant</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D010368" MajorTopicYN="N">Pectins</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D010940" MajorTopicYN="N">Plant Proteins</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</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="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D014404" MajorTopicYN="N">Tubulin</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
</MeshHeadingList>
</MedlineCitation>
<PubmedData><History><PubMedPubDate PubStatus="received"><Year>2017</Year>
<Month>04</Month>
<Day>13</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="accepted"><Year>2017</Year>
<Month>08</Month>
<Day>08</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="pubmed"><Year>2017</Year>
<Month>9</Month>
<Day>21</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="medline"><Year>2018</Year>
<Month>10</Month>
<Day>26</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="entrez"><Year>2017</Year>
<Month>9</Month>
<Day>21</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
</History>
<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList><ArticleId IdType="pubmed">28927239</ArticleId>
<ArticleId IdType="pii">4139573</ArticleId>
<ArticleId IdType="doi">10.1093/treephys/tpx104</ArticleId>
</ArticleIdList>
</PubmedData>
</pubmed>
<affiliations><list><country><li>États-Unis</li>
</country>
<region><li>Géorgie (États-Unis)</li>
<li>Oklahoma</li>
</region>
</list>
<tree><country name="États-Unis"><region name="Géorgie (États-Unis)"><name sortKey="Harding, Scott A" sort="Harding, Scott A" uniqKey="Harding S" first="Scott A" last="Harding">Scott A. Harding</name>
</region>
<name sortKey="Harding, Scott A" sort="Harding, Scott A" uniqKey="Harding S" first="Scott A" last="Harding">Scott A. Harding</name>
<name sortKey="Hu, Hao" sort="Hu, Hao" uniqKey="Hu H" first="Hao" last="Hu">Hao Hu</name>
<name sortKey="Hu, Hao" sort="Hu, Hao" uniqKey="Hu H" first="Hao" last="Hu">Hao Hu</name>
<name sortKey="Hu, Hao" sort="Hu, Hao" uniqKey="Hu H" first="Hao" last="Hu">Hao Hu</name>
<name sortKey="Naran, Radnaa" sort="Naran, Radnaa" uniqKey="Naran R" first="Radnaa" last="Naran">Radnaa Naran</name>
<name sortKey="Nyamdari, Batbayar" sort="Nyamdari, Batbayar" uniqKey="Nyamdari B" first="Batbayar" last="Nyamdari">Batbayar Nyamdari</name>
<name sortKey="Nyamdari, Batbayar" sort="Nyamdari, Batbayar" uniqKey="Nyamdari B" first="Batbayar" last="Nyamdari">Batbayar Nyamdari</name>
<name sortKey="Tsai, Chung Jui" sort="Tsai, Chung Jui" uniqKey="Tsai C" first="Chung-Jui" last="Tsai">Chung-Jui Tsai</name>
<name sortKey="Tsai, Chung Jui" sort="Tsai, Chung Jui" uniqKey="Tsai C" first="Chung-Jui" last="Tsai">Chung-Jui Tsai</name>
<name sortKey="Xue, Liang Jiao" sort="Xue, Liang Jiao" uniqKey="Xue L" first="Liang-Jiao" last="Xue">Liang-Jiao Xue</name>
<name sortKey="Xue, Liang Jiao" sort="Xue, Liang Jiao" uniqKey="Xue L" first="Liang-Jiao" last="Xue">Liang-Jiao Xue</name>
</country>
</tree>
</affiliations>
</record>

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Tubulins, rhythms and cell walls in poplar leaves: it's all in the timing.

Tubulins, rhythms and cell walls in poplar leaves: it's all in the timing.

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