Poplar potassium transporters capable of controlling K+ homeostasis and K+-dependent xylogenesis.
Identifieur interne : 004542 ( Main/Exploration ); précédent : 004541; suivant : 004543Poplar potassium transporters capable of controlling K+ homeostasis and K+-dependent xylogenesis.
Auteurs : Katharina Langer [Allemagne] ; Peter Ache ; Dietmar Geiger ; Andrea Stinzing ; Matthias Arend ; Christa Wind ; Sharon Regan ; Jörg Fromm ; Rainer HedrichSource :
- The Plant journal : for cell and molecular biology [ 0960-7412 ] ; 2002.
Descripteurs français
- KwdFr :
- Animaux (MeSH), Calcium (métabolisme), Canaux potassiques (effets des médicaments et des substances chimiques), Canaux potassiques (génétique), Canaux potassiques (métabolisme), Canaux potassiques (physiologie), Division cellulaire (effets des médicaments et des substances chimiques), Division cellulaire (physiologie), Données de séquences moléculaires (MeSH), Escherichia coli (génétique), Homéostasie (effets des médicaments et des substances chimiques), Inhibiteurs des canaux potassiques (pharmacologie), Mutation (MeSH), Ovocytes (physiologie), Phylogenèse (MeSH), Populus (cytologie), Populus (génétique), Populus (métabolisme), Potassium (métabolisme), Potassium (pharmacologie), Potentiels de membrane (effets des médicaments et des substances chimiques), Potentiels de membrane (physiologie), RT-PCR (MeSH), Régulation de l'expression des gènes végétaux (génétique), Régulation de l'expression des gènes végétaux (physiologie), Saisons (MeSH), Structures de plante (croissance et développement), Structures de plante (génétique), Structures de plante (métabolisme), Techniques de culture (MeSH), Transport biologique (MeSH), Transporteurs de cations (génétique), Transporteurs de cations (métabolisme), Tétraéthyl-ammonium (pharmacologie), Xenopus (MeSH), Étiquettes de séquences exprimées (MeSH).
- MESH :
- croissance et développement : Structures de plante.
- cytologie : Populus.
- effets des médicaments et des substances chimiques : Canaux potassiques, Division cellulaire, Homéostasie, Potentiels de membrane.
- génétique : Canaux potassiques, Escherichia coli, Populus, Régulation de l'expression des gènes végétaux, Structures de plante, Transporteurs de cations.
- métabolisme : Calcium, Canaux potassiques, Populus, Potassium, Structures de plante, Transporteurs de cations.
- pharmacologie : Inhibiteurs des canaux potassiques, Potassium, Tétraéthyl-ammonium.
- physiologie : Canaux potassiques, Division cellulaire, Ovocytes, Potentiels de membrane, Régulation de l'expression des gènes végétaux.
- Animaux, Données de séquences moléculaires, Mutation, Phylogenèse, RT-PCR, Saisons, Techniques de culture, Transport biologique, Xenopus, Étiquettes de séquences exprimées.
English descriptors
- KwdEn :
- Animals (MeSH), Biological Transport (MeSH), Calcium (metabolism), Cation Transport Proteins (genetics), Cation Transport Proteins (metabolism), Cell Division (drug effects), Cell Division (physiology), Culture Techniques (MeSH), Escherichia coli (genetics), Expressed Sequence Tags (MeSH), Gene Expression Regulation, Plant (genetics), Gene Expression Regulation, Plant (physiology), Homeostasis (drug effects), Membrane Potentials (drug effects), Membrane Potentials (physiology), Molecular Sequence Data (MeSH), Mutation (MeSH), Oocytes (physiology), Phylogeny (MeSH), Plant Structures (genetics), Plant Structures (growth & development), Plant Structures (metabolism), Populus (cytology), Populus (genetics), Populus (metabolism), Potassium (metabolism), Potassium (pharmacology), Potassium Channel Blockers (pharmacology), Potassium Channels (drug effects), Potassium Channels (genetics), Potassium Channels (metabolism), Potassium Channels (physiology), Reverse Transcriptase Polymerase Chain Reaction (MeSH), Seasons (MeSH), Tetraethylammonium (pharmacology), Xenopus (MeSH).
- MESH :
- chemical , drug effects : Potassium Channels.
- chemical , genetics : Cation Transport Proteins, Potassium Channels.
- chemical , metabolism : Calcium, Cation Transport Proteins, Potassium, Potassium Channels.
- cytology : Populus.
- drug effects : Cell Division, Homeostasis, Membrane Potentials.
- genetics : Escherichia coli, Gene Expression Regulation, Plant, Plant Structures, Populus.
- growth & development : Plant Structures.
- metabolism : Plant Structures, Populus.
- chemical , pharmacology : Potassium, Potassium Channel Blockers, Tetraethylammonium.
- physiology : Cell Division, Gene Expression Regulation, Plant, Membrane Potentials, Oocytes, Potassium Channels.
- Animals, Biological Transport, Culture Techniques, Expressed Sequence Tags, Molecular Sequence Data, Mutation, Phylogeny, Reverse Transcriptase Polymerase Chain Reaction, Seasons, Xenopus.
Abstract
The cambial K+ content of poplar increases during the growth period in a K+ supply dependent manner. Upon K+ starvation or application of tetraethylammoniumchloride (TEA+), a K+ channel blocker, the average vessel lumen and expansion zone area were significantly reduced. In search for the molecular basis of potassium-dependent xylogenesis in poplar, K+ transporters homologous to those of known function in Arabidopis phloem- and xylem-physiology were isolated from a poplar wood EST library. The expression profile of three distinct K+ channel types and one K+ transporter, Populus tremula K+ uptake transporter 1 (PtKUP1), was analysed by quantitative RT-PCR. Thereby, we found P. tremula outward rectifying K+ channel (PTORK) and P. tremula K+ channel 2 (PTK2) correlated with the seasonal wood production. K+ transporter P. tremula 1 (KPT1) was predominantly found in guard cells. Following the heterologous expression in Xenopus oocytes the biophysical properties of the different channels were determined. PTORK, upon membrane de-polarization mediates potassium release. PTK2 is almost voltage independent, carrying inward K+ flux at hyperpolarized potential and K+ release upon de-polarization. PtKUP1 was expressed in a K+ uptake-deficient Escherichia coli strain, where this K+ transporter rescued K+-dependent growth. In order to link the different K+ transporters to the cambial activity and wood production, we compared the expression profiles to seasonal changes in the K+ content of the bark as well as xylem vessel diameter. Thereby, we found PTORK and PTK2 transcripts to follow the annual K+ variations in poplar branches. PtKUP1 was expressed at a low level throughout the year, suggesting a housekeeping function. From these data, we conclude that K+ channels are involved in the regulation of K+-dependent wood production.
DOI: 10.1046/j.1365-313x.2002.01487.x
PubMed: 12492841
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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<author><name sortKey="Regan, Sharon" sort="Regan, Sharon" uniqKey="Regan S" first="Sharon" last="Regan">Sharon Regan</name>
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<term>Biological Transport (MeSH)</term>
<term>Calcium (metabolism)</term>
<term>Cation Transport Proteins (genetics)</term>
<term>Cation Transport Proteins (metabolism)</term>
<term>Cell Division (drug effects)</term>
<term>Cell Division (physiology)</term>
<term>Culture Techniques (MeSH)</term>
<term>Escherichia coli (genetics)</term>
<term>Expressed Sequence Tags (MeSH)</term>
<term>Gene Expression Regulation, Plant (genetics)</term>
<term>Gene Expression Regulation, Plant (physiology)</term>
<term>Homeostasis (drug effects)</term>
<term>Membrane Potentials (drug effects)</term>
<term>Membrane Potentials (physiology)</term>
<term>Molecular Sequence Data (MeSH)</term>
<term>Mutation (MeSH)</term>
<term>Oocytes (physiology)</term>
<term>Phylogeny (MeSH)</term>
<term>Plant Structures (genetics)</term>
<term>Plant Structures (growth & development)</term>
<term>Plant Structures (metabolism)</term>
<term>Populus (cytology)</term>
<term>Populus (genetics)</term>
<term>Populus (metabolism)</term>
<term>Potassium (metabolism)</term>
<term>Potassium (pharmacology)</term>
<term>Potassium Channel Blockers (pharmacology)</term>
<term>Potassium Channels (drug effects)</term>
<term>Potassium Channels (genetics)</term>
<term>Potassium Channels (metabolism)</term>
<term>Potassium Channels (physiology)</term>
<term>Reverse Transcriptase Polymerase Chain Reaction (MeSH)</term>
<term>Seasons (MeSH)</term>
<term>Tetraethylammonium (pharmacology)</term>
<term>Xenopus (MeSH)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Animaux (MeSH)</term>
<term>Calcium (métabolisme)</term>
<term>Canaux potassiques (effets des médicaments et des substances chimiques)</term>
<term>Canaux potassiques (génétique)</term>
<term>Canaux potassiques (métabolisme)</term>
<term>Canaux potassiques (physiologie)</term>
<term>Division cellulaire (effets des médicaments et des substances chimiques)</term>
<term>Division cellulaire (physiologie)</term>
<term>Données de séquences moléculaires (MeSH)</term>
<term>Escherichia coli (génétique)</term>
<term>Homéostasie (effets des médicaments et des substances chimiques)</term>
<term>Inhibiteurs des canaux potassiques (pharmacologie)</term>
<term>Mutation (MeSH)</term>
<term>Ovocytes (physiologie)</term>
<term>Phylogenèse (MeSH)</term>
<term>Populus (cytologie)</term>
<term>Populus (génétique)</term>
<term>Populus (métabolisme)</term>
<term>Potassium (métabolisme)</term>
<term>Potassium (pharmacologie)</term>
<term>Potentiels de membrane (effets des médicaments et des substances chimiques)</term>
<term>Potentiels de membrane (physiologie)</term>
<term>RT-PCR (MeSH)</term>
<term>Régulation de l'expression des gènes végétaux (génétique)</term>
<term>Régulation de l'expression des gènes végétaux (physiologie)</term>
<term>Saisons (MeSH)</term>
<term>Structures de plante (croissance et développement)</term>
<term>Structures de plante (génétique)</term>
<term>Structures de plante (métabolisme)</term>
<term>Techniques de culture (MeSH)</term>
<term>Transport biologique (MeSH)</term>
<term>Transporteurs de cations (génétique)</term>
<term>Transporteurs de cations (métabolisme)</term>
<term>Tétraéthyl-ammonium (pharmacologie)</term>
<term>Xenopus (MeSH)</term>
<term>Étiquettes de séquences exprimées (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="drug effects" xml:lang="en"><term>Potassium Channels</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Cation Transport Proteins</term>
<term>Potassium Channels</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Calcium</term>
<term>Cation Transport Proteins</term>
<term>Potassium</term>
<term>Potassium Channels</term>
</keywords>
<keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Structures de plante</term>
</keywords>
<keywords scheme="MESH" qualifier="cytologie" xml:lang="fr"><term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Cell Division</term>
<term>Homeostasis</term>
<term>Membrane Potentials</term>
</keywords>
<keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Canaux potassiques</term>
<term>Division cellulaire</term>
<term>Homéostasie</term>
<term>Potentiels de membrane</term>
</keywords>
<keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Escherichia coli</term>
<term>Gene Expression Regulation, Plant</term>
<term>Plant Structures</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Plant Structures</term>
</keywords>
<keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Canaux potassiques</term>
<term>Escherichia coli</term>
<term>Populus</term>
<term>Régulation de l'expression des gènes végétaux</term>
<term>Structures de plante</term>
<term>Transporteurs de cations</term>
</keywords>
<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Plant Structures</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Calcium</term>
<term>Canaux potassiques</term>
<term>Populus</term>
<term>Potassium</term>
<term>Structures de plante</term>
<term>Transporteurs de cations</term>
</keywords>
<keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Inhibiteurs des canaux potassiques</term>
<term>Potassium</term>
<term>Tétraéthyl-ammonium</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Potassium</term>
<term>Potassium Channel Blockers</term>
<term>Tetraethylammonium</term>
</keywords>
<keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Canaux potassiques</term>
<term>Division cellulaire</term>
<term>Ovocytes</term>
<term>Potentiels de membrane</term>
<term>Régulation de l'expression des gènes végétaux</term>
</keywords>
<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Cell Division</term>
<term>Gene Expression Regulation, Plant</term>
<term>Membrane Potentials</term>
<term>Oocytes</term>
<term>Potassium Channels</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Animals</term>
<term>Biological Transport</term>
<term>Culture Techniques</term>
<term>Expressed Sequence Tags</term>
<term>Molecular Sequence Data</term>
<term>Mutation</term>
<term>Phylogeny</term>
<term>Reverse Transcriptase Polymerase Chain Reaction</term>
<term>Seasons</term>
<term>Xenopus</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr"><term>Animaux</term>
<term>Données de séquences moléculaires</term>
<term>Mutation</term>
<term>Phylogenèse</term>
<term>RT-PCR</term>
<term>Saisons</term>
<term>Techniques de culture</term>
<term>Transport biologique</term>
<term>Xenopus</term>
<term>Étiquettes de séquences exprimées</term>
</keywords>
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<front><div type="abstract" xml:lang="en">The cambial K+ content of poplar increases during the growth period in a K+ supply dependent manner. Upon K+ starvation or application of tetraethylammoniumchloride (TEA+), a K+ channel blocker, the average vessel lumen and expansion zone area were significantly reduced. In search for the molecular basis of potassium-dependent xylogenesis in poplar, K+ transporters homologous to those of known function in Arabidopis phloem- and xylem-physiology were isolated from a poplar wood EST library. The expression profile of three distinct K+ channel types and one K+ transporter, Populus tremula K+ uptake transporter 1 (PtKUP1), was analysed by quantitative RT-PCR. Thereby, we found P. tremula outward rectifying K+ channel (PTORK) and P. tremula K+ channel 2 (PTK2) correlated with the seasonal wood production. K+ transporter P. tremula 1 (KPT1) was predominantly found in guard cells. Following the heterologous expression in Xenopus oocytes the biophysical properties of the different channels were determined. PTORK, upon membrane de-polarization mediates potassium release. PTK2 is almost voltage independent, carrying inward K+ flux at hyperpolarized potential and K+ release upon de-polarization. PtKUP1 was expressed in a K+ uptake-deficient Escherichia coli strain, where this K+ transporter rescued K+-dependent growth. In order to link the different K+ transporters to the cambial activity and wood production, we compared the expression profiles to seasonal changes in the K+ content of the bark as well as xylem vessel diameter. Thereby, we found PTORK and PTK2 transcripts to follow the annual K+ variations in poplar branches. PtKUP1 was expressed at a low level throughout the year, suggesting a housekeeping function. From these data, we conclude that K+ channels are involved in the regulation of K+-dependent wood production.</div>
</front>
</TEI>
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<DateCompleted><Year>2003</Year>
<Month>05</Month>
<Day>05</Day>
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<DateRevised><Year>2019</Year>
<Month>09</Month>
<Day>06</Day>
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<PubDate><Year>2002</Year>
<Month>Dec</Month>
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<Title>The Plant journal : for cell and molecular biology</Title>
<ISOAbbreviation>Plant J</ISOAbbreviation>
</Journal>
<ArticleTitle>Poplar potassium transporters capable of controlling K+ homeostasis and K+-dependent xylogenesis.</ArticleTitle>
<Pagination><MedlinePgn>997-1009</MedlinePgn>
</Pagination>
<Abstract><AbstractText>The cambial K+ content of poplar increases during the growth period in a K+ supply dependent manner. Upon K+ starvation or application of tetraethylammoniumchloride (TEA+), a K+ channel blocker, the average vessel lumen and expansion zone area were significantly reduced. In search for the molecular basis of potassium-dependent xylogenesis in poplar, K+ transporters homologous to those of known function in Arabidopis phloem- and xylem-physiology were isolated from a poplar wood EST library. The expression profile of three distinct K+ channel types and one K+ transporter, Populus tremula K+ uptake transporter 1 (PtKUP1), was analysed by quantitative RT-PCR. Thereby, we found P. tremula outward rectifying K+ channel (PTORK) and P. tremula K+ channel 2 (PTK2) correlated with the seasonal wood production. K+ transporter P. tremula 1 (KPT1) was predominantly found in guard cells. Following the heterologous expression in Xenopus oocytes the biophysical properties of the different channels were determined. PTORK, upon membrane de-polarization mediates potassium release. PTK2 is almost voltage independent, carrying inward K+ flux at hyperpolarized potential and K+ release upon de-polarization. PtKUP1 was expressed in a K+ uptake-deficient Escherichia coli strain, where this K+ transporter rescued K+-dependent growth. In order to link the different K+ transporters to the cambial activity and wood production, we compared the expression profiles to seasonal changes in the K+ content of the bark as well as xylem vessel diameter. Thereby, we found PTORK and PTK2 transcripts to follow the annual K+ variations in poplar branches. PtKUP1 was expressed at a low level throughout the year, suggesting a housekeeping function. From these data, we conclude that K+ channels are involved in the regulation of K+-dependent wood production.</AbstractText>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Langer</LastName>
<ForeName>Katharina</ForeName>
<Initials>K</Initials>
<AffiliationInfo><Affiliation>Julius-von-Sachs-Institut, Molekulare Pflanzenphysiologie und Biophysik, Universität Würzburg, Julius-von-Sachs-Platz 2, 97082 Würzburg, Germany.</Affiliation>
</AffiliationInfo>
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<Author ValidYN="Y"><LastName>Ache</LastName>
<ForeName>Peter</ForeName>
<Initials>P</Initials>
</Author>
<Author ValidYN="Y"><LastName>Geiger</LastName>
<ForeName>Dietmar</ForeName>
<Initials>D</Initials>
</Author>
<Author ValidYN="Y"><LastName>Stinzing</LastName>
<ForeName>Andrea</ForeName>
<Initials>A</Initials>
</Author>
<Author ValidYN="Y"><LastName>Arend</LastName>
<ForeName>Matthias</ForeName>
<Initials>M</Initials>
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<Author ValidYN="Y"><LastName>Wind</LastName>
<ForeName>Christa</ForeName>
<Initials>C</Initials>
</Author>
<Author ValidYN="Y"><LastName>Regan</LastName>
<ForeName>Sharon</ForeName>
<Initials>S</Initials>
</Author>
<Author ValidYN="Y"><LastName>Fromm</LastName>
<ForeName>Jörg</ForeName>
<Initials>J</Initials>
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<ForeName>Rainer</ForeName>
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<MedlineJournalInfo><Country>England</Country>
<MedlineTA>Plant J</MedlineTA>
<NlmUniqueID>9207397</NlmUniqueID>
<ISSNLinking>0960-7412</ISSNLinking>
</MedlineJournalInfo>
<ChemicalList><Chemical><RegistryNumber>0</RegistryNumber>
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<Chemical><RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D026902">Potassium Channel Blockers</NameOfSubstance>
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<Chemical><RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D015221">Potassium Channels</NameOfSubstance>
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<Chemical><RegistryNumber>66-40-0</RegistryNumber>
<NameOfSubstance UI="D019789">Tetraethylammonium</NameOfSubstance>
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<Chemical><RegistryNumber>RWP5GA015D</RegistryNumber>
<NameOfSubstance UI="D011188">Potassium</NameOfSubstance>
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<Chemical><RegistryNumber>SY7Q814VUP</RegistryNumber>
<NameOfSubstance UI="D002118">Calcium</NameOfSubstance>
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<CitationSubset>IM</CitationSubset>
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</MeshHeading>
<MeshHeading><DescriptorName UI="D001692" MajorTopicYN="N">Biological Transport</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D002118" MajorTopicYN="N">Calcium</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D027682" MajorTopicYN="N">Cation Transport Proteins</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D002455" MajorTopicYN="N">Cell Division</DescriptorName>
<QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName>
<QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D046508" MajorTopicYN="N">Culture Techniques</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D004926" MajorTopicYN="N">Escherichia coli</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D020224" MajorTopicYN="N">Expressed Sequence Tags</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D018506" MajorTopicYN="N">Gene Expression Regulation, Plant</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D006706" MajorTopicYN="N">Homeostasis</DescriptorName>
<QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D008564" MajorTopicYN="N">Membrane Potentials</DescriptorName>
<QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName>
<QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D008969" MajorTopicYN="N">Molecular Sequence Data</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D009154" MajorTopicYN="N">Mutation</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D009865" MajorTopicYN="N">Oocytes</DescriptorName>
<QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D010802" MajorTopicYN="N">Phylogeny</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D018514" MajorTopicYN="N">Plant Structures</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName>
<QualifierName UI="Q000166" MajorTopicYN="N">cytology</QualifierName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D011188" MajorTopicYN="N">Potassium</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
<QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D026902" MajorTopicYN="N">Potassium Channel Blockers</DescriptorName>
<QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D015221" MajorTopicYN="N">Potassium Channels</DescriptorName>
<QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName>
<QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
<QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D020133" MajorTopicYN="N">Reverse Transcriptase Polymerase Chain Reaction</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D012621" MajorTopicYN="N">Seasons</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D019789" MajorTopicYN="N">Tetraethylammonium</DescriptorName>
<QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D014981" MajorTopicYN="N">Xenopus</DescriptorName>
</MeshHeading>
</MeshHeadingList>
</MedlineCitation>
<PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2002</Year>
<Month>12</Month>
<Day>21</Day>
<Hour>4</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="medline"><Year>2003</Year>
<Month>5</Month>
<Day>6</Day>
<Hour>5</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="entrez"><Year>2002</Year>
<Month>12</Month>
<Day>21</Day>
<Hour>4</Hour>
<Minute>0</Minute>
</PubMedPubDate>
</History>
<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList><ArticleId IdType="pubmed">12492841</ArticleId>
<ArticleId IdType="pii">1487</ArticleId>
<ArticleId IdType="doi">10.1046/j.1365-313x.2002.01487.x</ArticleId>
</ArticleIdList>
</PubmedData>
</pubmed>
<affiliations><list><country><li>Allemagne</li>
</country>
<region><li>Bavière</li>
<li>District de Basse-Franconie</li>
</region>
<settlement><li>Wurtzbourg</li>
</settlement>
<orgName><li>Université de Wurtzbourg</li>
</orgName>
</list>
<tree><noCountry><name sortKey="Ache, Peter" sort="Ache, Peter" uniqKey="Ache P" first="Peter" last="Ache">Peter Ache</name>
<name sortKey="Arend, Matthias" sort="Arend, Matthias" uniqKey="Arend M" first="Matthias" last="Arend">Matthias Arend</name>
<name sortKey="Fromm, Jorg" sort="Fromm, Jorg" uniqKey="Fromm J" first="Jörg" last="Fromm">Jörg Fromm</name>
<name sortKey="Geiger, Dietmar" sort="Geiger, Dietmar" uniqKey="Geiger D" first="Dietmar" last="Geiger">Dietmar Geiger</name>
<name sortKey="Hedrich, Rainer" sort="Hedrich, Rainer" uniqKey="Hedrich R" first="Rainer" last="Hedrich">Rainer Hedrich</name>
<name sortKey="Regan, Sharon" sort="Regan, Sharon" uniqKey="Regan S" first="Sharon" last="Regan">Sharon Regan</name>
<name sortKey="Stinzing, Andrea" sort="Stinzing, Andrea" uniqKey="Stinzing A" first="Andrea" last="Stinzing">Andrea Stinzing</name>
<name sortKey="Wind, Christa" sort="Wind, Christa" uniqKey="Wind C" first="Christa" last="Wind">Christa Wind</name>
</noCountry>
<country name="Allemagne"><region name="Bavière"><name sortKey="Langer, Katharina" sort="Langer, Katharina" uniqKey="Langer K" first="Katharina" last="Langer">Katharina Langer</name>
</region>
</country>
</tree>
</affiliations>
</record>
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