A 5-Enolpyruvylshikimate 3-Phosphate Synthase Functions as a Transcriptional Repressor in Populus.
Identifieur interne : 001095 ( Main/Exploration ); précédent : 001094; suivant : 001096A 5-Enolpyruvylshikimate 3-Phosphate Synthase Functions as a Transcriptional Repressor in Populus.
Auteurs : Meng Xie [États-Unis] ; Wellington Muchero [États-Unis] ; Anthony C. Bryan [États-Unis] ; Kelsey Yee [États-Unis] ; Hao-Bo Guo [États-Unis] ; Jin Zhang [États-Unis] ; Timothy J. Tschaplinski [États-Unis] ; Vasanth R. Singan [États-Unis] ; Erika Lindquist [États-Unis] ; Raja S. Payyavula [États-Unis] ; Jaime Barros-Rios [États-Unis] ; Richard Dixon [États-Unis] ; Nancy Engle [États-Unis] ; Robert W. Sykes [États-Unis] ; Mark Davis [États-Unis] ; Sara S. Jawdy [États-Unis] ; Lee E. Gunter [États-Unis] ; Olivia Thompson [États-Unis] ; Stephen P. Difazio [États-Unis] ; Luke M. Evans [États-Unis] ; Kim Winkeler [États-Unis] ; Cassandra Collins [États-Unis] ; Jeremy Schmutz [États-Unis] ; Hong Guo [États-Unis] ; Udaya Kalluri [États-Unis] ; Miguel Rodriguez [États-Unis] ; Kai Feng [États-Unis] ; Jin-Gui Chen [États-Unis] ; Gerald A. Tuskan [États-Unis]Source :
- The Plant cell [ 1532-298X ] ; 2018.
Descripteurs français
- KwdFr :
- 3-Phosphoshikimate 1-carboxyvinyltransferase (génétique), 3-Phosphoshikimate 1-carboxyvinyltransferase (métabolisme), Facteurs de transcription (génétique), Facteurs de transcription (métabolisme), Populus (génétique), Populus (métabolisme), Protéines végétales (génétique), Protéines végétales (métabolisme), Régulation de l'expression des gènes végétaux (MeSH), Végétaux génétiquement modifiés (génétique), Végétaux génétiquement modifiés (métabolisme).
- MESH :
- génétique : 3-Phosphoshikimate 1-carboxyvinyltransferase, Facteurs de transcription, Populus, Protéines végétales, Végétaux génétiquement modifiés.
- métabolisme : 3-Phosphoshikimate 1-carboxyvinyltransferase, Facteurs de transcription, Populus, Protéines végétales, Végétaux génétiquement modifiés.
- Régulation de l'expression des gènes végétaux.
English descriptors
- KwdEn :
- 3-Phosphoshikimate 1-Carboxyvinyltransferase (genetics), 3-Phosphoshikimate 1-Carboxyvinyltransferase (metabolism), Gene Expression Regulation, Plant (MeSH), Plant Proteins (genetics), Plant Proteins (metabolism), Plants, Genetically Modified (genetics), Plants, Genetically Modified (metabolism), Populus (genetics), Populus (metabolism), Transcription Factors (genetics), Transcription Factors (metabolism).
- MESH :
- chemical , genetics : 3-Phosphoshikimate 1-Carboxyvinyltransferase, Plant Proteins, Transcription Factors.
- chemical , metabolism : 3-Phosphoshikimate 1-Carboxyvinyltransferase, Plant Proteins, Transcription Factors.
- genetics : Plants, Genetically Modified, Populus.
- metabolism : Plants, Genetically Modified, Populus.
- Gene Expression Regulation, Plant.
Abstract
Long-lived perennial plants, with distinctive habits of inter-annual growth, defense, and physiology, are of great economic and ecological importance. However, some biological mechanisms resulting from genome duplication and functional divergence of genes in these systems remain poorly studied. Here, we discovered an association between a poplar (Populus trichocarpa) 5-enolpyruvylshikimate 3-phosphate synthase gene (PtrEPSP) and lignin biosynthesis. Functional characterization of PtrEPSP revealed that this isoform possesses a helix-turn-helix motif in the N terminus and can function as a transcriptional repressor that regulates expression of genes in the phenylpropanoid pathway in addition to performing its canonical biosynthesis function in the shikimate pathway. We demonstrated that this isoform can localize in the nucleus and specifically binds to the promoter and represses the expression of a SLEEPER-like transcriptional regulator, which itself specifically binds to the promoter and represses the expression of PtrMYB021 (known as MYB46 in Arabidopsis thaliana), a master regulator of the phenylpropanoid pathway and lignin biosynthesis. Analyses of overexpression and RNAi lines targeting PtrEPSP confirmed the predicted changes in PtrMYB021 expression patterns. These results demonstrate that PtrEPSP in its regulatory form and PtrhAT form a transcriptional hierarchy regulating phenylpropanoid pathway and lignin biosynthesis in Populus.
DOI: 10.1105/tpc.18.00168
PubMed: 29891568
PubMed Central: PMC6096593
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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<affiliation wicri:level="2"><nlm:affiliation>HudsonAlpha Institute for Biotechnology, Huntsville, Alabama 35806.</nlm:affiliation>
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<wicri:cityArea>HudsonAlpha Institute for Biotechnology, Huntsville</wicri:cityArea>
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<author><name sortKey="Guo, Hong" sort="Guo, Hong" uniqKey="Guo H" first="Hong" last="Guo">Hong Guo</name>
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<author><name sortKey="Kalluri, Udaya" sort="Kalluri, Udaya" uniqKey="Kalluri U" first="Udaya" last="Kalluri">Udaya Kalluri</name>
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<author><name sortKey="Rodriguez, Miguel" sort="Rodriguez, Miguel" uniqKey="Rodriguez M" first="Miguel" last="Rodriguez">Miguel Rodriguez</name>
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<author><name sortKey="Feng, Kai" sort="Feng, Kai" uniqKey="Feng K" first="Kai" last="Feng">Kai Feng</name>
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<author><name sortKey="Chen, Jin Gui" sort="Chen, Jin Gui" uniqKey="Chen J" first="Jin-Gui" last="Chen">Jin-Gui Chen</name>
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<author><name sortKey="Tuskan, Gerald A" sort="Tuskan, Gerald A" uniqKey="Tuskan G" first="Gerald A" last="Tuskan">Gerald A. Tuskan</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">A 5-Enolpyruvylshikimate 3-Phosphate Synthase Functions as a Transcriptional Repressor in <i>Populus</i>
.</title>
<author><name sortKey="Xie, Meng" sort="Xie, Meng" uniqKey="Xie M" first="Meng" last="Xie">Meng Xie</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</nlm:affiliation>
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<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Muchero, Wellington" sort="Muchero, Wellington" uniqKey="Muchero W" first="Wellington" last="Muchero">Wellington Muchero</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 mucherow@ornl.gov chenj@ornl.gov tuskanga@ornl.gov.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Bryan, Anthony C" sort="Bryan, Anthony C" uniqKey="Bryan A" first="Anthony C" last="Bryan">Anthony C. Bryan</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
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<author><name sortKey="Yee, Kelsey" sort="Yee, Kelsey" uniqKey="Yee K" first="Kelsey" last="Yee">Kelsey Yee</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
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<author><name sortKey="Guo, Hao Bo" sort="Guo, Hao Bo" uniqKey="Guo H" first="Hao-Bo" last="Guo">Hao-Bo Guo</name>
<affiliation wicri:level="2"><nlm:affiliation>Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, Tennessee 37996.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Zhang, Jin" sort="Zhang, Jin" uniqKey="Zhang J" first="Jin" last="Zhang">Jin Zhang</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Tschaplinski, Timothy J" sort="Tschaplinski, Timothy J" uniqKey="Tschaplinski T" first="Timothy J" last="Tschaplinski">Timothy J. Tschaplinski</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Singan, Vasanth R" sort="Singan, Vasanth R" uniqKey="Singan V" first="Vasanth R" last="Singan">Vasanth R. Singan</name>
<affiliation wicri:level="2"><nlm:affiliation>U.S. Department of Energy Joint Genome Institute, Walnut Creek, California 94598.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Californie</region>
</placeName>
<wicri:cityArea>U.S. Department of Energy Joint Genome Institute, Walnut Creek</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Lindquist, Erika" sort="Lindquist, Erika" uniqKey="Lindquist E" first="Erika" last="Lindquist">Erika Lindquist</name>
<affiliation wicri:level="2"><nlm:affiliation>U.S. Department of Energy Joint Genome Institute, Walnut Creek, California 94598.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Californie</region>
</placeName>
<wicri:cityArea>U.S. Department of Energy Joint Genome Institute, Walnut Creek</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Payyavula, Raja S" sort="Payyavula, Raja S" uniqKey="Payyavula R" first="Raja S" last="Payyavula">Raja S. Payyavula</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Barros Rios, Jaime" sort="Barros Rios, Jaime" uniqKey="Barros Rios J" first="Jaime" last="Barros-Rios">Jaime Barros-Rios</name>
<affiliation wicri:level="2"><nlm:affiliation>BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, Texas 76203.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Texas</region>
</placeName>
<wicri:cityArea>BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Dixon, Richard" sort="Dixon, Richard" uniqKey="Dixon R" first="Richard" last="Dixon">Richard Dixon</name>
<affiliation wicri:level="2"><nlm:affiliation>BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, Texas 76203.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Texas</region>
</placeName>
<wicri:cityArea>BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Engle, Nancy" sort="Engle, Nancy" uniqKey="Engle N" first="Nancy" last="Engle">Nancy Engle</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Sykes, Robert W" sort="Sykes, Robert W" uniqKey="Sykes R" first="Robert W" last="Sykes">Robert W. Sykes</name>
<affiliation wicri:level="2"><nlm:affiliation>Bioscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Colorado</region>
</placeName>
<wicri:cityArea>Bioscience Center, National Renewable Energy Laboratory, Golden</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Davis, Mark" sort="Davis, Mark" uniqKey="Davis M" first="Mark" last="Davis">Mark Davis</name>
<affiliation wicri:level="2"><nlm:affiliation>Bioscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Colorado</region>
</placeName>
<wicri:cityArea>Bioscience Center, National Renewable Energy Laboratory, Golden</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Jawdy, Sara S" sort="Jawdy, Sara S" uniqKey="Jawdy S" first="Sara S" last="Jawdy">Sara S. Jawdy</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Gunter, Lee E" sort="Gunter, Lee E" uniqKey="Gunter L" first="Lee E" last="Gunter">Lee E. Gunter</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Thompson, Olivia" sort="Thompson, Olivia" uniqKey="Thompson O" first="Olivia" last="Thompson">Olivia Thompson</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Difazio, Stephen P" sort="Difazio, Stephen P" uniqKey="Difazio S" first="Stephen P" last="Difazio">Stephen P. Difazio</name>
<affiliation wicri:level="2"><nlm:affiliation>Department of Biology, West Virginia University, Morgantown, West Virginia 26506.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Virginie-Occidentale</region>
</placeName>
<wicri:cityArea>Department of Biology, West Virginia University, Morgantown</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Evans, Luke M" sort="Evans, Luke M" uniqKey="Evans L" first="Luke M" last="Evans">Luke M. Evans</name>
<affiliation wicri:level="2"><nlm:affiliation>Department of Biology, West Virginia University, Morgantown, West Virginia 26506.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Virginie-Occidentale</region>
</placeName>
<wicri:cityArea>Department of Biology, West Virginia University, Morgantown</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Winkeler, Kim" sort="Winkeler, Kim" uniqKey="Winkeler K" first="Kim" last="Winkeler">Kim Winkeler</name>
<affiliation wicri:level="2"><nlm:affiliation>ArborGen, Ridgeville, South Carolina 29472.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Caroline du Sud</region>
</placeName>
<wicri:cityArea>ArborGen, Ridgeville</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Collins, Cassandra" sort="Collins, Cassandra" uniqKey="Collins C" first="Cassandra" last="Collins">Cassandra Collins</name>
<affiliation wicri:level="2"><nlm:affiliation>ArborGen, Ridgeville, South Carolina 29472.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Caroline du Sud</region>
</placeName>
<wicri:cityArea>ArborGen, Ridgeville</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Schmutz, Jeremy" sort="Schmutz, Jeremy" uniqKey="Schmutz J" first="Jeremy" last="Schmutz">Jeremy Schmutz</name>
<affiliation wicri:level="2"><nlm:affiliation>U.S. Department of Energy Joint Genome Institute, Walnut Creek, California 94598.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Californie</region>
</placeName>
<wicri:cityArea>U.S. Department of Energy Joint Genome Institute, Walnut Creek</wicri:cityArea>
</affiliation>
<affiliation wicri:level="2"><nlm:affiliation>HudsonAlpha Institute for Biotechnology, Huntsville, Alabama 35806.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Alabama</region>
</placeName>
<wicri:cityArea>HudsonAlpha Institute for Biotechnology, Huntsville</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Guo, Hong" sort="Guo, Hong" uniqKey="Guo H" first="Hong" last="Guo">Hong Guo</name>
<affiliation wicri:level="2"><nlm:affiliation>Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, Tennessee 37996.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Kalluri, Udaya" sort="Kalluri, Udaya" uniqKey="Kalluri U" first="Udaya" last="Kalluri">Udaya Kalluri</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Rodriguez, Miguel" sort="Rodriguez, Miguel" uniqKey="Rodriguez M" first="Miguel" last="Rodriguez">Miguel Rodriguez</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Feng, Kai" sort="Feng, Kai" uniqKey="Feng K" first="Kai" last="Feng">Kai Feng</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Chen, Jin Gui" sort="Chen, Jin Gui" uniqKey="Chen J" first="Jin-Gui" last="Chen">Jin-Gui Chen</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 mucherow@ornl.gov chenj@ornl.gov tuskanga@ornl.gov.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
</author>
<author><name sortKey="Tuskan, Gerald A" sort="Tuskan, Gerald A" uniqKey="Tuskan G" first="Gerald A" last="Tuskan">Gerald A. Tuskan</name>
<affiliation wicri:level="2"><nlm:affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 mucherow@ornl.gov chenj@ornl.gov tuskanga@ornl.gov.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge</wicri:cityArea>
</affiliation>
<affiliation wicri:level="2"><nlm:affiliation>U.S. Department of Energy Joint Genome Institute, Walnut Creek, California 94598.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Californie</region>
</placeName>
<wicri:cityArea>U.S. Department of Energy Joint Genome Institute, Walnut Creek</wicri:cityArea>
</affiliation>
</author>
</analytic>
<series><title level="j">The Plant cell</title>
<idno type="eISSN">1532-298X</idno>
<imprint><date when="2018" type="published">2018</date>
</imprint>
</series>
</biblStruct>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>3-Phosphoshikimate 1-Carboxyvinyltransferase (genetics)</term>
<term>3-Phosphoshikimate 1-Carboxyvinyltransferase (metabolism)</term>
<term>Gene Expression Regulation, Plant (MeSH)</term>
<term>Plant Proteins (genetics)</term>
<term>Plant Proteins (metabolism)</term>
<term>Plants, Genetically Modified (genetics)</term>
<term>Plants, Genetically Modified (metabolism)</term>
<term>Populus (genetics)</term>
<term>Populus (metabolism)</term>
<term>Transcription Factors (genetics)</term>
<term>Transcription Factors (metabolism)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>3-Phosphoshikimate 1-carboxyvinyltransferase (génétique)</term>
<term>3-Phosphoshikimate 1-carboxyvinyltransferase (métabolisme)</term>
<term>Facteurs de transcription (génétique)</term>
<term>Facteurs de transcription (métabolisme)</term>
<term>Populus (génétique)</term>
<term>Populus (métabolisme)</term>
<term>Protéines végétales (génétique)</term>
<term>Protéines végétales (métabolisme)</term>
<term>Régulation de l'expression des gènes végétaux (MeSH)</term>
<term>Végétaux génétiquement modifiés (génétique)</term>
<term>Végétaux génétiquement modifiés (métabolisme)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>3-Phosphoshikimate 1-Carboxyvinyltransferase</term>
<term>Plant Proteins</term>
<term>Transcription Factors</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>3-Phosphoshikimate 1-Carboxyvinyltransferase</term>
<term>Plant Proteins</term>
<term>Transcription Factors</term>
</keywords>
<keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Plants, Genetically Modified</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>3-Phosphoshikimate 1-carboxyvinyltransferase</term>
<term>Facteurs de transcription</term>
<term>Populus</term>
<term>Protéines végétales</term>
<term>Végétaux génétiquement modifiés</term>
</keywords>
<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Plants, Genetically Modified</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>3-Phosphoshikimate 1-carboxyvinyltransferase</term>
<term>Facteurs de transcription</term>
<term>Populus</term>
<term>Protéines végétales</term>
<term>Végétaux génétiquement modifiés</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>
</keywords>
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<front><div type="abstract" xml:lang="en">Long-lived perennial plants, with distinctive habits of inter-annual growth, defense, and physiology, are of great economic and ecological importance. However, some biological mechanisms resulting from genome duplication and functional divergence of genes in these systems remain poorly studied. Here, we discovered an association between a poplar (<i>Populus trichocarpa)</i>
5-enolpyruvylshikimate 3-phosphate synthase gene (<i>PtrEPSP</i>
) and lignin biosynthesis. Functional characterization of PtrEPSP revealed that this isoform possesses a helix-turn-helix motif in the N terminus and can function as a transcriptional repressor that regulates expression of genes in the phenylpropanoid pathway in addition to performing its canonical biosynthesis function in the shikimate pathway. We demonstrated that this isoform can localize in the nucleus and specifically binds to the promoter and represses the expression of a <i>SLEEPER</i>
-like transcriptional regulator, which itself specifically binds to the promoter and represses the expression of <i>PtrMYB021</i>
(known as <i>MYB46</i>
in <i>Arabidopsis thaliana</i>
), a master regulator of the phenylpropanoid pathway and lignin biosynthesis. Analyses of overexpression and RNAi lines targeting PtrEPSP confirmed the predicted changes in <i>PtrMYB021</i>
expression patterns. These results demonstrate that PtrEPSP in its regulatory form and PtrhAT form a transcriptional hierarchy regulating phenylpropanoid pathway and lignin biosynthesis in <i>Populus</i>
.</div>
</front>
</TEI>
<pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">29891568</PMID>
<DateCompleted><Year>2019</Year>
<Month>06</Month>
<Day>17</Day>
</DateCompleted>
<DateRevised><Year>2019</Year>
<Month>06</Month>
<Day>17</Day>
</DateRevised>
<Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1532-298X</ISSN>
<JournalIssue CitedMedium="Internet"><Volume>30</Volume>
<Issue>7</Issue>
<PubDate><Year>2018</Year>
<Month>07</Month>
</PubDate>
</JournalIssue>
<Title>The Plant cell</Title>
<ISOAbbreviation>Plant Cell</ISOAbbreviation>
</Journal>
<ArticleTitle>A 5-Enolpyruvylshikimate 3-Phosphate Synthase Functions as a Transcriptional Repressor in <i>Populus</i>
.</ArticleTitle>
<Pagination><MedlinePgn>1645-1660</MedlinePgn>
</Pagination>
<ELocationID EIdType="doi" ValidYN="Y">10.1105/tpc.18.00168</ELocationID>
<Abstract><AbstractText>Long-lived perennial plants, with distinctive habits of inter-annual growth, defense, and physiology, are of great economic and ecological importance. However, some biological mechanisms resulting from genome duplication and functional divergence of genes in these systems remain poorly studied. Here, we discovered an association between a poplar (<i>Populus trichocarpa)</i>
5-enolpyruvylshikimate 3-phosphate synthase gene (<i>PtrEPSP</i>
) and lignin biosynthesis. Functional characterization of PtrEPSP revealed that this isoform possesses a helix-turn-helix motif in the N terminus and can function as a transcriptional repressor that regulates expression of genes in the phenylpropanoid pathway in addition to performing its canonical biosynthesis function in the shikimate pathway. We demonstrated that this isoform can localize in the nucleus and specifically binds to the promoter and represses the expression of a <i>SLEEPER</i>
-like transcriptional regulator, which itself specifically binds to the promoter and represses the expression of <i>PtrMYB021</i>
(known as <i>MYB46</i>
in <i>Arabidopsis thaliana</i>
), a master regulator of the phenylpropanoid pathway and lignin biosynthesis. Analyses of overexpression and RNAi lines targeting PtrEPSP confirmed the predicted changes in <i>PtrMYB021</i>
expression patterns. These results demonstrate that PtrEPSP in its regulatory form and PtrhAT form a transcriptional hierarchy regulating phenylpropanoid pathway and lignin biosynthesis in <i>Populus</i>
.</AbstractText>
<CopyrightInformation>© 2018 American Society of Plant Biologists. All rights reserved.</CopyrightInformation>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Xie</LastName>
<ForeName>Meng</ForeName>
<Initials>M</Initials>
<Identifier Source="ORCID">0000-0003-0247-3701</Identifier>
<AffiliationInfo><Affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Muchero</LastName>
<ForeName>Wellington</ForeName>
<Initials>W</Initials>
<Identifier Source="ORCID">0000-0002-0200-9856</Identifier>
<AffiliationInfo><Affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 mucherow@ornl.gov chenj@ornl.gov tuskanga@ornl.gov.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Bryan</LastName>
<ForeName>Anthony C</ForeName>
<Initials>AC</Initials>
<Identifier Source="ORCID">0000-0003-0917-8705</Identifier>
<AffiliationInfo><Affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Yee</LastName>
<ForeName>Kelsey</ForeName>
<Initials>K</Initials>
<Identifier Source="ORCID">0000-0002-7219-0638</Identifier>
<AffiliationInfo><Affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Guo</LastName>
<ForeName>Hao-Bo</ForeName>
<Initials>HB</Initials>
<Identifier Source="ORCID">0000-0003-1321-1758</Identifier>
<AffiliationInfo><Affiliation>Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, Tennessee 37996.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Zhang</LastName>
<ForeName>Jin</ForeName>
<Initials>J</Initials>
<Identifier Source="ORCID">0000-0002-8397-5078</Identifier>
<AffiliationInfo><Affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Tschaplinski</LastName>
<ForeName>Timothy J</ForeName>
<Initials>TJ</Initials>
<Identifier Source="ORCID">0000-0002-9540-6622</Identifier>
<AffiliationInfo><Affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Singan</LastName>
<ForeName>Vasanth R</ForeName>
<Initials>VR</Initials>
<Identifier Source="ORCID">0000-0002-9983-5707</Identifier>
<AffiliationInfo><Affiliation>U.S. Department of Energy Joint Genome Institute, Walnut Creek, California 94598.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Lindquist</LastName>
<ForeName>Erika</ForeName>
<Initials>E</Initials>
<Identifier Source="ORCID">0000-0003-2249-7225</Identifier>
<AffiliationInfo><Affiliation>U.S. Department of Energy Joint Genome Institute, Walnut Creek, California 94598.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Payyavula</LastName>
<ForeName>Raja S</ForeName>
<Initials>RS</Initials>
<Identifier Source="ORCID">0000-0001-8945-5041</Identifier>
<AffiliationInfo><Affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Barros-Rios</LastName>
<ForeName>Jaime</ForeName>
<Initials>J</Initials>
<Identifier Source="ORCID">0000-0002-9545-312X</Identifier>
<AffiliationInfo><Affiliation>BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, Texas 76203.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Dixon</LastName>
<ForeName>Richard</ForeName>
<Initials>R</Initials>
<Identifier Source="ORCID">0000-0001-8393-9408</Identifier>
<AffiliationInfo><Affiliation>BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, Texas 76203.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Engle</LastName>
<ForeName>Nancy</ForeName>
<Initials>N</Initials>
<Identifier Source="ORCID">0000-0003-0290-7987</Identifier>
<AffiliationInfo><Affiliation>BioEnergy Science Center and Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y"><LastName>Sykes</LastName>
<ForeName>Robert W</ForeName>
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<name sortKey="Dixon, Richard" sort="Dixon, Richard" uniqKey="Dixon R" first="Richard" last="Dixon">Richard Dixon</name>
<name sortKey="Engle, Nancy" sort="Engle, Nancy" uniqKey="Engle N" first="Nancy" last="Engle">Nancy Engle</name>
<name sortKey="Evans, Luke M" sort="Evans, Luke M" uniqKey="Evans L" first="Luke M" last="Evans">Luke M. Evans</name>
<name sortKey="Feng, Kai" sort="Feng, Kai" uniqKey="Feng K" first="Kai" last="Feng">Kai Feng</name>
<name sortKey="Gunter, Lee E" sort="Gunter, Lee E" uniqKey="Gunter L" first="Lee E" last="Gunter">Lee E. Gunter</name>
<name sortKey="Guo, Hao Bo" sort="Guo, Hao Bo" uniqKey="Guo H" first="Hao-Bo" last="Guo">Hao-Bo Guo</name>
<name sortKey="Guo, Hong" sort="Guo, Hong" uniqKey="Guo H" first="Hong" last="Guo">Hong Guo</name>
<name sortKey="Jawdy, Sara S" sort="Jawdy, Sara S" uniqKey="Jawdy S" first="Sara S" last="Jawdy">Sara S. Jawdy</name>
<name sortKey="Kalluri, Udaya" sort="Kalluri, Udaya" uniqKey="Kalluri U" first="Udaya" last="Kalluri">Udaya Kalluri</name>
<name sortKey="Lindquist, Erika" sort="Lindquist, Erika" uniqKey="Lindquist E" first="Erika" last="Lindquist">Erika Lindquist</name>
<name sortKey="Muchero, Wellington" sort="Muchero, Wellington" uniqKey="Muchero W" first="Wellington" last="Muchero">Wellington Muchero</name>
<name sortKey="Payyavula, Raja S" sort="Payyavula, Raja S" uniqKey="Payyavula R" first="Raja S" last="Payyavula">Raja S. Payyavula</name>
<name sortKey="Rodriguez, Miguel" sort="Rodriguez, Miguel" uniqKey="Rodriguez M" first="Miguel" last="Rodriguez">Miguel Rodriguez</name>
<name sortKey="Schmutz, Jeremy" sort="Schmutz, Jeremy" uniqKey="Schmutz J" first="Jeremy" last="Schmutz">Jeremy Schmutz</name>
<name sortKey="Schmutz, Jeremy" sort="Schmutz, Jeremy" uniqKey="Schmutz J" first="Jeremy" last="Schmutz">Jeremy Schmutz</name>
<name sortKey="Singan, Vasanth R" sort="Singan, Vasanth R" uniqKey="Singan V" first="Vasanth R" last="Singan">Vasanth R. Singan</name>
<name sortKey="Sykes, Robert W" sort="Sykes, Robert W" uniqKey="Sykes R" first="Robert W" last="Sykes">Robert W. Sykes</name>
<name sortKey="Thompson, Olivia" sort="Thompson, Olivia" uniqKey="Thompson O" first="Olivia" last="Thompson">Olivia Thompson</name>
<name sortKey="Tschaplinski, Timothy J" sort="Tschaplinski, Timothy J" uniqKey="Tschaplinski T" first="Timothy J" last="Tschaplinski">Timothy J. Tschaplinski</name>
<name sortKey="Tuskan, Gerald A" sort="Tuskan, Gerald A" uniqKey="Tuskan G" first="Gerald A" last="Tuskan">Gerald A. Tuskan</name>
<name sortKey="Tuskan, Gerald A" sort="Tuskan, Gerald A" uniqKey="Tuskan G" first="Gerald A" last="Tuskan">Gerald A. Tuskan</name>
<name sortKey="Winkeler, Kim" sort="Winkeler, Kim" uniqKey="Winkeler K" first="Kim" last="Winkeler">Kim Winkeler</name>
<name sortKey="Yee, Kelsey" sort="Yee, Kelsey" uniqKey="Yee K" first="Kelsey" last="Yee">Kelsey Yee</name>
<name sortKey="Zhang, Jin" sort="Zhang, Jin" uniqKey="Zhang J" first="Jin" last="Zhang">Jin Zhang</name>
</country>
</tree>
</affiliations>
</record>
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