Does glutathione metabolism have a role in the defence of poplar against zinc excess?
Identifieur interne : 004061 ( Main/Exploration ); précédent : 004060; suivant : 004062Does glutathione metabolism have a role in the defence of poplar against zinc excess?
Auteurs : Daniela Di Baccio [Italie] ; Stanislav Kopriva ; Luca Sebastiani ; Heinz RennenbergSource :
- The New phytologist [ 0028-646X ] ; 2005.
Descripteurs français
- KwdFr :
- Croisements génétiques (MeSH), Feuilles de plante (effets des médicaments et des substances chimiques), Feuilles de plante (métabolisme), Glutathion (métabolisme), Populus (effets des médicaments et des substances chimiques), Populus (métabolisme), Protéines végétales (métabolisme), Régulation de l'expression des gènes végétaux (effets des médicaments et des substances chimiques), Régulation de l'expression des gènes végétaux (physiologie), Zinc (physiologie), Zinc (toxicité).
- MESH :
- effets des médicaments et des substances chimiques : Feuilles de plante, Populus, Régulation de l'expression des gènes végétaux.
- métabolisme : Feuilles de plante, Glutathion, Populus, Protéines végétales.
- physiologie : Régulation de l'expression des gènes végétaux, Zinc.
- toxicité : Zinc.
- Croisements génétiques.
English descriptors
- KwdEn :
- Crosses, Genetic (MeSH), Gene Expression Regulation, Plant (drug effects), Gene Expression Regulation, Plant (physiology), Glutathione (metabolism), Plant Leaves (drug effects), Plant Leaves (metabolism), Plant Proteins (metabolism), Populus (drug effects), Populus (metabolism), Zinc (physiology), Zinc (toxicity).
- MESH :
- chemical , metabolism : Glutathione, Plant Proteins.
- drug effects : Gene Expression Regulation, Plant, Plant Leaves, Populus.
- metabolism : Plant Leaves, Populus.
- physiology : Gene Expression Regulation, Plant, Zinc.
- chemical , toxicity : Zinc.
- Crosses, Genetic.
Abstract
Transition metals such as zinc (Zn) are essential micronutrients for many physiological processes, but they become toxic at elevated levels. Zinc is one of the most abundant trace heavy metals present in agro-ecosystems. Populus spp. have been suggested as good candidates for using to study the removal and/or immobilization of environmental organic and inorganic pollutants. In order to understand the physiological and biochemical bases of this assumption for Zn, plants of Populus deltoides x P. nigra (P. x euramericana) were grown in hydroponics with different concentrations of Zn [1 microm (control), and 1, 5 and 10 mm] in the nutrient solution.Shoot biomass decreased at 5 and 10 mm Zn, while the Zn content of young leaves increased progressively with increasing Zn concentration (1-10 mm). Total glutathione (GSH+GSSG) content was reduced with increasing Zn concentration, while the contribution of oxidized to total glutathione increased. Despite these observations, semiquantitative reverse transcription-polymerase chain reaction (RT-PCR) revealed that the gene expression of GSH reductase (GR, chloroplastic and cytosolic isoform) and gamma-glutamylcysteine synthetase (gamma-ECS) increased in young leaves of poplars treated with excess Zn. We conclude that GSH synthesis, consumption and redox status play a central role in the response of poplars to high concentrations of Zn.
DOI: 10.1111/j.1469-8137.2005.01462.x
PubMed: 15948831
Affiliations:
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sortKey="Sebastiani, Luca" sort="Sebastiani, Luca" uniqKey="Sebastiani L" first="Luca" last="Sebastiani">Luca Sebastiani</name></author><author><name sortKey="Rennenberg, Heinz" sort="Rennenberg, Heinz" uniqKey="Rennenberg H" first="Heinz" last="Rennenberg">Heinz Rennenberg</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2005">2005</date><idno type="RBID">pubmed:15948831</idno><idno type="pmid">15948831</idno><idno type="doi">10.1111/j.1469-8137.2005.01462.x</idno><idno type="wicri:Area/Main/Corpus">004029</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">004029</idno><idno type="wicri:Area/Main/Curation">004029</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">004029</idno><idno type="wicri:Area/Main/Exploration">004029</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Does glutathione metabolism have a role in the defence of poplar against zinc excess?</title><author><name sortKey="Di Baccio, Daniela" sort="Di Baccio, Daniela" uniqKey="Di Baccio D" first="Daniela" last="Di Baccio">Daniela Di Baccio</name><affiliation wicri:level="1"><nlm:affiliation>Scuola Superiore 'Sant'Anna' di Studi Universitari e di Perfezionamento, Piazza Martiri della Libertà 33, 56127 Pisa, Italy. dibaccio@sssup.it</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Scuola Superiore 'Sant'Anna' di Studi Universitari e di Perfezionamento, Piazza Martiri della Libertà 33, 56127 Pisa</wicri:regionArea><placeName><settlement type="city">Pise</settlement><region nuts="2">Toscane</region></placeName></affiliation></author><author><name sortKey="Kopriva, Stanislav" sort="Kopriva, Stanislav" uniqKey="Kopriva S" first="Stanislav" last="Kopriva">Stanislav Kopriva</name></author><author><name sortKey="Sebastiani, Luca" sort="Sebastiani, Luca" uniqKey="Sebastiani L" first="Luca" last="Sebastiani">Luca 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xml:lang="fr"><term>Croisements génétiques</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Transition metals such as zinc (Zn) are essential micronutrients for many physiological processes, but they become toxic at elevated levels. Zinc is one of the most abundant trace heavy metals present in agro-ecosystems. Populus spp. have been suggested as good candidates for using to study the removal and/or immobilization of environmental organic and inorganic pollutants. In order to understand the physiological and biochemical bases of this assumption for Zn, plants of Populus deltoides x P. nigra (P. x euramericana) were grown in hydroponics with different concentrations of Zn [1 microm (control), and 1, 5 and 10 mm] in the nutrient solution.Shoot biomass decreased at 5 and 10 mm Zn, while the Zn content of young leaves increased progressively with increasing Zn concentration (1-10 mm). Total glutathione (GSH+GSSG) content was reduced with increasing Zn concentration, while the contribution of oxidized to total glutathione increased. Despite these observations, semiquantitative reverse transcription-polymerase chain reaction (RT-PCR) revealed that the gene expression of GSH reductase (GR, chloroplastic and cytosolic isoform) and gamma-glutamylcysteine synthetase (gamma-ECS) increased in young leaves of poplars treated with excess Zn. We conclude that GSH synthesis, consumption and redox status play a central role in the response of poplars to high concentrations of Zn.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15948831</PMID><DateCompleted><Year>2005</Year><Month>08</Month><Day>16</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0028-646X</ISSN><JournalIssue CitedMedium="Print"><Volume>167</Volume><Issue>1</Issue><PubDate><Year>2005</Year><Month>Jul</Month></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>Does glutathione metabolism have a role in the defence of poplar against zinc excess?</ArticleTitle><Pagination><MedlinePgn>73-80</MedlinePgn></Pagination><Abstract><AbstractText>Transition metals such as zinc (Zn) are essential micronutrients for many physiological processes, but they become toxic at elevated levels. Zinc is one of the most abundant trace heavy metals present in agro-ecosystems. Populus spp. have been suggested as good candidates for using to study the removal and/or immobilization of environmental organic and inorganic pollutants. In order to understand the physiological and biochemical bases of this assumption for Zn, plants of Populus deltoides x P. nigra (P. x euramericana) were grown in hydroponics with different concentrations of Zn [1 microm (control), and 1, 5 and 10 mm] in the nutrient solution.Shoot biomass decreased at 5 and 10 mm Zn, while the Zn content of young leaves increased progressively with increasing Zn concentration (1-10 mm). Total glutathione (GSH+GSSG) content was reduced with increasing Zn concentration, while the contribution of oxidized to total glutathione increased. Despite these observations, semiquantitative reverse transcription-polymerase chain reaction (RT-PCR) revealed that the gene expression of GSH reductase (GR, chloroplastic and cytosolic isoform) and gamma-glutamylcysteine synthetase (gamma-ECS) increased in young leaves of poplars treated with excess Zn. We conclude that GSH synthesis, consumption and redox status play a central role in the response of poplars to high concentrations of Zn.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Di Baccio</LastName><ForeName>Daniela</ForeName><Initials>D</Initials><AffiliationInfo><Affiliation>Scuola Superiore 'Sant'Anna' di Studi Universitari e di Perfezionamento, Piazza Martiri della Libertà 33, 56127 Pisa, Italy. dibaccio@sssup.it</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kopriva</LastName><ForeName>Stanislav</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Sebastiani</LastName><ForeName>Luca</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>Rennenberg</LastName><ForeName>Heinz</ForeName><Initials>H</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>New Phytol</MedlineTA><NlmUniqueID>9882884</NlmUniqueID><ISSNLinking>0028-646X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010940">Plant Proteins</NameOfSubstance></Chemical><Chemical><RegistryNumber>GAN16C9B8O</RegistryNumber><NameOfSubstance UI="D005978">Glutathione</NameOfSubstance></Chemical><Chemical><RegistryNumber>J41CSQ7QDS</RegistryNumber><NameOfSubstance UI="D015032">Zinc</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D003433" MajorTopicYN="N">Crosses, Genetic</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018506" MajorTopicYN="N">Gene Expression Regulation, Plant</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005978" MajorTopicYN="N">Glutathione</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010940" MajorTopicYN="N">Plant Proteins</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="Y">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D015032" MajorTopicYN="N">Zinc</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName><QualifierName UI="Q000633" MajorTopicYN="Y">toxicity</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2005</Year><Month>6</Month><Day>14</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2005</Year><Month>8</Month><Day>17</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2005</Year><Month>6</Month><Day>14</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">15948831</ArticleId><ArticleId IdType="pii">NPH1462</ArticleId><ArticleId IdType="doi">10.1111/j.1469-8137.2005.01462.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Italie</li></country><region><li>Toscane</li></region><settlement><li>Pise</li></settlement></list><tree><noCountry><name sortKey="Kopriva, Stanislav" sort="Kopriva, Stanislav" uniqKey="Kopriva S" first="Stanislav" last="Kopriva">Stanislav Kopriva</name><name sortKey="Rennenberg, Heinz" sort="Rennenberg, Heinz" uniqKey="Rennenberg H" first="Heinz" last="Rennenberg">Heinz Rennenberg</name><name sortKey="Sebastiani, Luca" sort="Sebastiani, Luca" uniqKey="Sebastiani L" first="Luca" last="Sebastiani">Luca Sebastiani</name></noCountry><country name="Italie"><region name="Toscane"><name sortKey="Di Baccio, Daniela" sort="Di Baccio, Daniela" uniqKey="Di Baccio D" first="Daniela" last="Di Baccio">Daniela Di Baccio</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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