LotaV3, Main, Merge, bibRecord, 000249

Structure and Expression Profile of the Phosphate Pht1 Transporter Gene Family in Mycorrhizal Populus trichocarpa1[W]

Identifieur interne : 000249 ( Main/Merge ); précédent : 000248; suivant : 000250

Structure and Expression Profile of the Phosphate Pht1 Transporter Gene Family in Mycorrhizal Populus trichocarpa1[W]

Auteurs : Ver Nica Loth-Pereda ; Elena Orsini ; Pierre-Emmanuel Courty ; Frédéric Lota ; Annegret Kohler ; Loic Diss ; Damien Blaudez ; Michel Chalot ; Uwe Nehls ; Marcel Bucher ; Francis Martin

Source :

Plant Physiology [ 0032-0889 ] ; 2011.

RBID : PMC:3149965

Descripteurs français

KwdFr :
- ARN messager (génétique), ARN messager (métabolisme), Analyse de profil d'expression de gènes (MeSH), Annotation de séquence moléculaire (MeSH), Famille multigénique (génétique), Glomeromycota (croissance et développement), Glomeromycota (effets des médicaments et des substances chimiques), Glomeromycota (physiologie), Glucuronidase (métabolisme), Gènes de plante (génétique), Génotype (MeSH), Mycorhizes (effets des médicaments et des substances chimiques), Mycorhizes (physiologie), Numération de colonies microbiennes (MeSH), Phosphates (pharmacologie), Phylogenèse (MeSH), Populus (effets des médicaments et des substances chimiques), Populus (génétique), Populus (microbiologie), Protéines de transport du phosphate (composition chimique), Protéines de transport du phosphate (génétique), Protéines de transport du phosphate (métabolisme), RT-PCR (MeSH), Régulation de l'expression des gènes végétaux (effets des médicaments et des substances chimiques), Spécificité d'espèce (MeSH), Végétaux génétiquement modifiés (MeSH).
MESH :
- composition chimique : Protéines de transport du phosphate.
- croissance et développement : Glomeromycota.
- effets des médicaments et des substances chimiques : Glomeromycota, Mycorhizes, Populus, Régulation de l'expression des gènes végétaux.
- génétique : ARN messager, Famille multigénique, Gènes de plante, Populus, Protéines de transport du phosphate.
- microbiologie : Populus.
- métabolisme : ARN messager, Glucuronidase, Protéines de transport du phosphate.
- pharmacologie : Phosphates.
- physiologie : Glomeromycota, Mycorhizes.
- Analyse de profil d'expression de gènes, Annotation de séquence moléculaire, Génotype, Numération de colonies microbiennes, Phylogenèse, RT-PCR, Spécificité d'espèce, Végétaux génétiquement modifiés.

English descriptors

KwdEn :
- Colony Count, Microbial (MeSH), Gene Expression Profiling (MeSH), Gene Expression Regulation, Plant (drug effects), Genes, Plant (genetics), Genotype (MeSH), Glomeromycota (drug effects), Glomeromycota (growth & development), Glomeromycota (physiology), Glucuronidase (metabolism), Molecular Sequence Annotation (MeSH), Multigene Family (genetics), Mycorrhizae (drug effects), Mycorrhizae (physiology), Phosphate Transport Proteins (chemistry), Phosphate Transport Proteins (genetics), Phosphate Transport Proteins (metabolism), Phosphates (pharmacology), Phylogeny (MeSH), Plants, Genetically Modified (MeSH), Populus (drug effects), Populus (genetics), Populus (microbiology), RNA, Messenger (genetics), RNA, Messenger (metabolism), Reverse Transcriptase Polymerase Chain Reaction (MeSH), Species Specificity (MeSH).
MESH :
- chemical , chemistry : Phosphate Transport Proteins.
- chemical , genetics : Phosphate Transport Proteins, RNA, Messenger.
- chemical , metabolism : Glucuronidase, Phosphate Transport Proteins, RNA, Messenger.
- drug effects : Gene Expression Regulation, Plant, Glomeromycota, Mycorrhizae, Populus.
- genetics : Genes, Plant, Multigene Family, Populus.
- growth & development : Glomeromycota.
- microbiology : Populus.
- chemical , pharmacology : Phosphates.
- physiology : Glomeromycota, Mycorrhizae.
- Colony Count, Microbial, Gene Expression Profiling, Genotype, Molecular Sequence Annotation, Phylogeny, Plants, Genetically Modified, Reverse Transcriptase Polymerase Chain Reaction, Species Specificity.

Abstract

Gene networks involved in inorganic phosphate (Pi) acquisition and homeostasis in woody perennial species able to form mycorrhizal symbioses are poorly known. Here, we describe the features of the 12 genes coding for Pi transporters of the Pht1 family in poplar (Populus trichocarpa). Individual Pht1 transporters play distinct roles in acquiring and translocating Pi in different tissues of mycorrhizal and nonmycorrhizal poplar during different growth conditions and developmental stages. Pi starvation triggered the up-regulation of most members of the Pht1 family, especially PtPT9 and PtPT11. PtPT9 and PtPT12 showed a striking up-regulation in ectomycorrhizas and endomycorrhizas, whereas PtPT1 and PtPT11 were strongly down-regulated. PtPT10 transcripts were highly abundant in arbuscular mycorrhiza (AM) roots only. PtPT8 and PtPT10 are phylogenetically associated to the AM-inducible Pht1 subfamily I. The analysis of promoter sequences revealed conserved motifs similar to other AM-inducible orthologs in PtPT10 only. To gain more insight into gene regulatory mechanisms governing the AM symbiosis in woody plant species, the activation of the poplar PtPT10 promoter was investigated and detected in AM of potato (Solanum tuberosum) roots. These results indicated that the regulation of AM-inducible Pi transporter genes is conserved between perennial woody and herbaceous plant species. Moreover, poplar has developed an alternative Pi uptake pathway distinct from AM plants, allowing ectomycorrhizal poplar to recruit PtPT9 and PtPT12 to cope with limiting Pi concentrations in forest soils.

Url:

DOI: 10.1104/pp.111.180646
PubMed: 21705655
PubMed Central: 3149965

Links to Exploration step

PMC:3149965

Le document en format XML

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<xref ref-type="author-notes" rid="fn1"><sup>1</sup>
</xref>
<xref ref-type="author-notes" rid="fn6"><sup>[W]</sup>
</xref>
</title>
<author><name sortKey="Loth Pereda, Ver Nica" sort="Loth Pereda, Ver Nica" uniqKey="Loth Pereda V" first="Ver Nica" last="Loth-Pereda">Ver Nica Loth-Pereda</name>
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<author><name sortKey="Orsini, Elena" sort="Orsini, Elena" uniqKey="Orsini E" first="Elena" last="Orsini">Elena Orsini</name>
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<author><name sortKey="Lota, Frederic" sort="Lota, Frederic" uniqKey="Lota F" first="Frédéric" last="Lota">Frédéric Lota</name>
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<author><name sortKey="Kohler, Annegret" sort="Kohler, Annegret" uniqKey="Kohler A" first="Annegret" last="Kohler">Annegret Kohler</name>
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<author><name sortKey="Diss, Loic" sort="Diss, Loic" uniqKey="Diss L" first="Loic" last="Diss">Loic Diss</name>
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<author><name sortKey="Blaudez, Damien" sort="Blaudez, Damien" uniqKey="Blaudez D" first="Damien" last="Blaudez">Damien Blaudez</name>
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<author><name sortKey="Chalot, Michel" sort="Chalot, Michel" uniqKey="Chalot M" first="Michel" last="Chalot">Michel Chalot</name>
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<author><name sortKey="Bucher, Marcel" sort="Bucher, Marcel" uniqKey="Bucher M" first="Marcel" last="Bucher">Marcel Bucher</name>
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<author><name sortKey="Martin, Francis" sort="Martin, Francis" uniqKey="Martin F" first="Francis" last="Martin">Francis Martin</name>
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<series><title level="j">Plant Physiology</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Colony Count, Microbial (MeSH)</term>
<term>Gene Expression Profiling (MeSH)</term>
<term>Gene Expression Regulation, Plant (drug effects)</term>
<term>Genes, Plant (genetics)</term>
<term>Genotype (MeSH)</term>
<term>Glomeromycota (drug effects)</term>
<term>Glomeromycota (growth & development)</term>
<term>Glomeromycota (physiology)</term>
<term>Glucuronidase (metabolism)</term>
<term>Molecular Sequence Annotation (MeSH)</term>
<term>Multigene Family (genetics)</term>
<term>Mycorrhizae (drug effects)</term>
<term>Mycorrhizae (physiology)</term>
<term>Phosphate Transport Proteins (chemistry)</term>
<term>Phosphate Transport Proteins (genetics)</term>
<term>Phosphate Transport Proteins (metabolism)</term>
<term>Phosphates (pharmacology)</term>
<term>Phylogeny (MeSH)</term>
<term>Plants, Genetically Modified (MeSH)</term>
<term>Populus (drug effects)</term>
<term>Populus (genetics)</term>
<term>Populus (microbiology)</term>
<term>RNA, Messenger (genetics)</term>
<term>RNA, Messenger (metabolism)</term>
<term>Reverse Transcriptase Polymerase Chain Reaction (MeSH)</term>
<term>Species Specificity (MeSH)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>ARN messager (génétique)</term>
<term>ARN messager (métabolisme)</term>
<term>Analyse de profil d'expression de gènes (MeSH)</term>
<term>Annotation de séquence moléculaire (MeSH)</term>
<term>Famille multigénique (génétique)</term>
<term>Glomeromycota (croissance et développement)</term>
<term>Glomeromycota (effets des médicaments et des substances chimiques)</term>
<term>Glomeromycota (physiologie)</term>
<term>Glucuronidase (métabolisme)</term>
<term>Gènes de plante (génétique)</term>
<term>Génotype (MeSH)</term>
<term>Mycorhizes (effets des médicaments et des substances chimiques)</term>
<term>Mycorhizes (physiologie)</term>
<term>Numération de colonies microbiennes (MeSH)</term>
<term>Phosphates (pharmacologie)</term>
<term>Phylogenèse (MeSH)</term>
<term>Populus (effets des médicaments et des substances chimiques)</term>
<term>Populus (génétique)</term>
<term>Populus (microbiologie)</term>
<term>Protéines de transport du phosphate (composition chimique)</term>
<term>Protéines de transport du phosphate (génétique)</term>
<term>Protéines de transport du phosphate (métabolisme)</term>
<term>RT-PCR (MeSH)</term>
<term>Régulation de l'expression des gènes végétaux (effets des médicaments et des substances chimiques)</term>
<term>Spécificité d'espèce (MeSH)</term>
<term>Végétaux génétiquement modifiés (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Phosphate Transport Proteins</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Phosphate Transport Proteins</term>
<term>RNA, Messenger</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Glucuronidase</term>
<term>Phosphate Transport Proteins</term>
<term>RNA, Messenger</term>
</keywords>
<keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Protéines de transport du phosphate</term>
</keywords>
<keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Glomeromycota</term>
</keywords>
<keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Gene Expression Regulation, Plant</term>
<term>Glomeromycota</term>
<term>Mycorrhizae</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Glomeromycota</term>
<term>Mycorhizes</term>
<term>Populus</term>
<term>Régulation de l'expression des gènes végétaux</term>
</keywords>
<keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Genes, Plant</term>
<term>Multigene Family</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Glomeromycota</term>
</keywords>
<keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>ARN messager</term>
<term>Famille multigénique</term>
<term>Gènes de plante</term>
<term>Populus</term>
<term>Protéines de transport du phosphate</term>
</keywords>
<keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>ARN messager</term>
<term>Glucuronidase</term>
<term>Protéines de transport du phosphate</term>
</keywords>
<keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Phosphates</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Phosphates</term>
</keywords>
<keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Glomeromycota</term>
<term>Mycorhizes</term>
</keywords>
<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Glomeromycota</term>
<term>Mycorrhizae</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Colony Count, Microbial</term>
<term>Gene Expression Profiling</term>
<term>Genotype</term>
<term>Molecular Sequence Annotation</term>
<term>Phylogeny</term>
<term>Plants, Genetically Modified</term>
<term>Reverse Transcriptase Polymerase Chain Reaction</term>
<term>Species Specificity</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr"><term>Analyse de profil d'expression de gènes</term>
<term>Annotation de séquence moléculaire</term>
<term>Génotype</term>
<term>Numération de colonies microbiennes</term>
<term>Phylogenèse</term>
<term>RT-PCR</term>
<term>Spécificité d'espèce</term>
<term>Végétaux génétiquement modifiés</term>
</keywords>
</textClass>
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<front><div type="abstract" xml:lang="en"><p>Gene networks involved in inorganic phosphate (Pi) acquisition and homeostasis in woody perennial species able to form mycorrhizal symbioses are poorly known. Here, we describe the features of the 12 genes coding for Pi transporters of the Pht1 family in poplar (<italic>Populus trichocarpa</italic>
). Individual Pht1 transporters play distinct roles in acquiring and translocating Pi in different tissues of mycorrhizal and nonmycorrhizal poplar during different growth conditions and developmental stages. Pi starvation triggered the up-regulation of most members of the <italic>Pht1</italic>
 family, especially <italic>PtPT9</italic>
 and <italic>PtPT11</italic>
. <italic>PtPT9</italic>
 and <italic>PtPT12</italic>
 showed a striking up-regulation in ectomycorrhizas and endomycorrhizas, whereas <italic>PtPT1</italic>
 and <italic>PtPT11</italic>
 were strongly down-regulated. <italic>PtPT10</italic>
 transcripts were highly abundant in arbuscular mycorrhiza (AM) roots only. <italic>PtPT8</italic>
 and <italic>PtPT10</italic>
 are phylogenetically associated to the AM-inducible Pht1 subfamily I. The analysis of promoter sequences revealed conserved motifs similar to other AM-inducible orthologs in <italic>PtPT10</italic>
 only. To gain more insight into gene regulatory mechanisms governing the AM symbiosis in woody plant species, the activation of the poplar <italic>PtPT10</italic>
 promoter was investigated and detected in AM of potato (<italic>Solanum tuberosum</italic>
) roots. These results indicated that the regulation of AM-inducible Pi transporter genes is conserved between perennial woody and herbaceous plant species. Moreover, poplar has developed an alternative Pi uptake pathway distinct from AM plants, allowing ectomycorrhizal poplar to recruit <italic>PtPT9</italic>
 and <italic>PtPT12</italic>
 to cope with limiting Pi concentrations in forest soils.</p>
</div>
</front>
</TEI>
<double doi="10.1104/pp.111.180646"><PMC><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Structure and Expression Profile of the Phosphate Pht1 Transporter Gene Family in Mycorrhizal <italic>Populus trichocarpa</italic>
<xref ref-type="author-notes" rid="fn1"><sup>1</sup>
</xref>
<xref ref-type="author-notes" rid="fn6"><sup>[W]</sup>
</xref>
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<author><name sortKey="Loth Pereda, Ver Nica" sort="Loth Pereda, Ver Nica" uniqKey="Loth Pereda V" first="Ver Nica" last="Loth-Pereda">Ver Nica Loth-Pereda</name>
</author>
<author><name sortKey="Orsini, Elena" sort="Orsini, Elena" uniqKey="Orsini E" first="Elena" last="Orsini">Elena Orsini</name>
</author>
<author><name sortKey="Courty, Pierre Emmanuel" sort="Courty, Pierre Emmanuel" uniqKey="Courty P" first="Pierre-Emmanuel" last="Courty">Pierre-Emmanuel Courty</name>
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<author><name sortKey="Kohler, Annegret" sort="Kohler, Annegret" uniqKey="Kohler A" first="Annegret" last="Kohler">Annegret Kohler</name>
</author>
<author><name sortKey="Diss, Loic" sort="Diss, Loic" uniqKey="Diss L" first="Loic" last="Diss">Loic Diss</name>
</author>
<author><name sortKey="Blaudez, Damien" sort="Blaudez, Damien" uniqKey="Blaudez D" first="Damien" last="Blaudez">Damien Blaudez</name>
</author>
<author><name sortKey="Chalot, Michel" sort="Chalot, Michel" uniqKey="Chalot M" first="Michel" last="Chalot">Michel Chalot</name>
</author>
<author><name sortKey="Nehls, Uwe" sort="Nehls, Uwe" uniqKey="Nehls U" first="Uwe" last="Nehls">Uwe Nehls</name>
</author>
<author><name sortKey="Bucher, Marcel" sort="Bucher, Marcel" uniqKey="Bucher M" first="Marcel" last="Bucher">Marcel Bucher</name>
</author>
<author><name sortKey="Martin, Francis" sort="Martin, Francis" uniqKey="Martin F" first="Francis" last="Martin">Francis Martin</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Structure and Expression Profile of the Phosphate Pht1 Transporter Gene Family in Mycorrhizal <italic>Populus trichocarpa</italic>
<xref ref-type="author-notes" rid="fn1"><sup>1</sup>
</xref>
<xref ref-type="author-notes" rid="fn6"><sup>[W]</sup>
</xref>
</title>
<author><name sortKey="Loth Pereda, Ver Nica" sort="Loth Pereda, Ver Nica" uniqKey="Loth Pereda V" first="Ver Nica" last="Loth-Pereda">Ver Nica Loth-Pereda</name>
</author>
<author><name sortKey="Orsini, Elena" sort="Orsini, Elena" uniqKey="Orsini E" first="Elena" last="Orsini">Elena Orsini</name>
</author>
<author><name sortKey="Courty, Pierre Emmanuel" sort="Courty, Pierre Emmanuel" uniqKey="Courty P" first="Pierre-Emmanuel" last="Courty">Pierre-Emmanuel Courty</name>
</author>
<author><name sortKey="Lota, Frederic" sort="Lota, Frederic" uniqKey="Lota F" first="Frédéric" last="Lota">Frédéric Lota</name>
</author>
<author><name sortKey="Kohler, Annegret" sort="Kohler, Annegret" uniqKey="Kohler A" first="Annegret" last="Kohler">Annegret Kohler</name>
</author>
<author><name sortKey="Diss, Loic" sort="Diss, Loic" uniqKey="Diss L" first="Loic" last="Diss">Loic Diss</name>
</author>
<author><name sortKey="Blaudez, Damien" sort="Blaudez, Damien" uniqKey="Blaudez D" first="Damien" last="Blaudez">Damien Blaudez</name>
</author>
<author><name sortKey="Chalot, Michel" sort="Chalot, Michel" uniqKey="Chalot M" first="Michel" last="Chalot">Michel Chalot</name>
</author>
<author><name sortKey="Nehls, Uwe" sort="Nehls, Uwe" uniqKey="Nehls U" first="Uwe" last="Nehls">Uwe Nehls</name>
</author>
<author><name sortKey="Bucher, Marcel" sort="Bucher, Marcel" uniqKey="Bucher M" first="Marcel" last="Bucher">Marcel Bucher</name>
</author>
<author><name sortKey="Martin, Francis" sort="Martin, Francis" uniqKey="Martin F" first="Francis" last="Martin">Francis Martin</name>
</author>
</analytic>
<series><title level="j">Plant Physiology</title>
<idno type="ISSN">0032-0889</idno>
<idno type="eISSN">1532-2548</idno>
<imprint><date when="2011">2011</date>
</imprint>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Colony Count, Microbial (MeSH)</term>
<term>Gene Expression Profiling (MeSH)</term>
<term>Gene Expression Regulation, Plant (drug effects)</term>
<term>Genes, Plant (genetics)</term>
<term>Genotype (MeSH)</term>
<term>Glomeromycota (drug effects)</term>
<term>Glomeromycota (growth & development)</term>
<term>Glomeromycota (physiology)</term>
<term>Glucuronidase (metabolism)</term>
<term>Molecular Sequence Annotation (MeSH)</term>
<term>Multigene Family (genetics)</term>
<term>Mycorrhizae (drug effects)</term>
<term>Mycorrhizae (physiology)</term>
<term>Phosphate Transport Proteins (chemistry)</term>
<term>Phosphate Transport Proteins (genetics)</term>
<term>Phosphate Transport Proteins (metabolism)</term>
<term>Phosphates (pharmacology)</term>
<term>Phylogeny (MeSH)</term>
<term>Plants, Genetically Modified (MeSH)</term>
<term>Populus (drug effects)</term>
<term>Populus (genetics)</term>
<term>Populus (microbiology)</term>
<term>RNA, Messenger (genetics)</term>
<term>RNA, Messenger (metabolism)</term>
<term>Reverse Transcriptase Polymerase Chain Reaction (MeSH)</term>
<term>Species Specificity (MeSH)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>ARN messager (génétique)</term>
<term>ARN messager (métabolisme)</term>
<term>Analyse de profil d'expression de gènes (MeSH)</term>
<term>Annotation de séquence moléculaire (MeSH)</term>
<term>Famille multigénique (génétique)</term>
<term>Glomeromycota (croissance et développement)</term>
<term>Glomeromycota (effets des médicaments et des substances chimiques)</term>
<term>Glomeromycota (physiologie)</term>
<term>Glucuronidase (métabolisme)</term>
<term>Gènes de plante (génétique)</term>
<term>Génotype (MeSH)</term>
<term>Mycorhizes (effets des médicaments et des substances chimiques)</term>
<term>Mycorhizes (physiologie)</term>
<term>Numération de colonies microbiennes (MeSH)</term>
<term>Phosphates (pharmacologie)</term>
<term>Phylogenèse (MeSH)</term>
<term>Populus (effets des médicaments et des substances chimiques)</term>
<term>Populus (génétique)</term>
<term>Populus (microbiologie)</term>
<term>Protéines de transport du phosphate (composition chimique)</term>
<term>Protéines de transport du phosphate (génétique)</term>
<term>Protéines de transport du phosphate (métabolisme)</term>
<term>RT-PCR (MeSH)</term>
<term>Régulation de l'expression des gènes végétaux (effets des médicaments et des substances chimiques)</term>
<term>Spécificité d'espèce (MeSH)</term>
<term>Végétaux génétiquement modifiés (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Phosphate Transport Proteins</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Phosphate Transport Proteins</term>
<term>RNA, Messenger</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Glucuronidase</term>
<term>Phosphate Transport Proteins</term>
<term>RNA, Messenger</term>
</keywords>
<keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Protéines de transport du phosphate</term>
</keywords>
<keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Glomeromycota</term>
</keywords>
<keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Gene Expression Regulation, Plant</term>
<term>Glomeromycota</term>
<term>Mycorrhizae</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Glomeromycota</term>
<term>Mycorhizes</term>
<term>Populus</term>
<term>Régulation de l'expression des gènes végétaux</term>
</keywords>
<keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Genes, Plant</term>
<term>Multigene Family</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Glomeromycota</term>
</keywords>
<keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>ARN messager</term>
<term>Famille multigénique</term>
<term>Gènes de plante</term>
<term>Populus</term>
<term>Protéines de transport du phosphate</term>
</keywords>
<keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>ARN messager</term>
<term>Glucuronidase</term>
<term>Protéines de transport du phosphate</term>
</keywords>
<keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Phosphates</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Phosphates</term>
</keywords>
<keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Glomeromycota</term>
<term>Mycorhizes</term>
</keywords>
<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Glomeromycota</term>
<term>Mycorrhizae</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Colony Count, Microbial</term>
<term>Gene Expression Profiling</term>
<term>Genotype</term>
<term>Molecular Sequence Annotation</term>
<term>Phylogeny</term>
<term>Plants, Genetically Modified</term>
<term>Reverse Transcriptase Polymerase Chain Reaction</term>
<term>Species Specificity</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr"><term>Analyse de profil d'expression de gènes</term>
<term>Annotation de séquence moléculaire</term>
<term>Génotype</term>
<term>Numération de colonies microbiennes</term>
<term>Phylogenèse</term>
<term>RT-PCR</term>
<term>Spécificité d'espèce</term>
<term>Végétaux génétiquement modifiés</term>
</keywords>
</textClass>
</profileDesc>
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<front><div type="abstract" xml:lang="en"><p>Gene networks involved in inorganic phosphate (Pi) acquisition and homeostasis in woody perennial species able to form mycorrhizal symbioses are poorly known. Here, we describe the features of the 12 genes coding for Pi transporters of the Pht1 family in poplar (<italic>Populus trichocarpa</italic>
). Individual Pht1 transporters play distinct roles in acquiring and translocating Pi in different tissues of mycorrhizal and nonmycorrhizal poplar during different growth conditions and developmental stages. Pi starvation triggered the up-regulation of most members of the <italic>Pht1</italic>
 family, especially <italic>PtPT9</italic>
 and <italic>PtPT11</italic>
. <italic>PtPT9</italic>
 and <italic>PtPT12</italic>
 showed a striking up-regulation in ectomycorrhizas and endomycorrhizas, whereas <italic>PtPT1</italic>
 and <italic>PtPT11</italic>
 were strongly down-regulated. <italic>PtPT10</italic>
 transcripts were highly abundant in arbuscular mycorrhiza (AM) roots only. <italic>PtPT8</italic>
 and <italic>PtPT10</italic>
 are phylogenetically associated to the AM-inducible Pht1 subfamily I. The analysis of promoter sequences revealed conserved motifs similar to other AM-inducible orthologs in <italic>PtPT10</italic>
 only. To gain more insight into gene regulatory mechanisms governing the AM symbiosis in woody plant species, the activation of the poplar <italic>PtPT10</italic>
 promoter was investigated and detected in AM of potato (<italic>Solanum tuberosum</italic>
) roots. These results indicated that the regulation of AM-inducible Pi transporter genes is conserved between perennial woody and herbaceous plant species. Moreover, poplar has developed an alternative Pi uptake pathway distinct from AM plants, allowing ectomycorrhizal poplar to recruit <italic>PtPT9</italic>
 and <italic>PtPT12</italic>
 to cope with limiting Pi concentrations in forest soils.</p>
</div>
</front>
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<title level="j">Plant Physiology</title>
<imprint><date type="published" when="2011">2011</date>
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<front><div type="abstract" xml:lang="en">Gene networks involved in Pi acquisition and homeostasis in woody perennial species able to form mycorrhizal symbioses are poorly known. Here, we describe the features of the 12 genes coding for inorganic phosphate (Pi) transporters of the Pht1 family in Populus trichocarpa Torr. & A.Gray ex Hook. Individual Pht1 transporters play distinct roles in acquiring and translocating Pi in different tissues of mycorrhizal and nonmycorrhizal poplar during different growth conditions and developmental stages. Pi starvation triggered the up-regulation of most members of the Pht1 family; especially PtPT9 and PtPT11. PtPT9 and PtPT12 showed a striking up-regulation in ecto- and endomycorrhizas, whereas PtPT1 and PtPT11 were strongly down regulated. PtPT10 transcripts were highly abundant in AM roots only. PtPT8 and PtPT10 are phylogenetically associated to the arbuscular mycorrhiza (AM)-inducible Pht1 sub-family I. The analysis of promoter sequences revealed conserved motifs similar to other AM inducible orthologs in PtPT10 only. To gain more insight into gene regulatory mechanisms governing the AM symbiosis in woody plant species, the activation of the poplar PtPT10 promoter was investigated and detected in AM of Solanum tuberosum roots. These results indicated that the regulation of AM-inducible Pi transporter genes is conserved between perennial woody and herbaceous plant species. Moreover, poplar has developed an alternative Pi uptake pathway distinct from AM plants allowing ectomycorrhizal poplar to recruit PtPT9 and PtPT12 to cope with limiting Pi concentrations in forest soils. </div>
</front>
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Structure and Expression Profile of the Phosphate Pht1 Transporter Gene Family in Mycorrhizal Populus trichocarpa1[W]

Structure and Expression Profile of the Phosphate Pht1 Transporter Gene Family in Mycorrhizal Populus trichocarpa1[W]

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