Salt stress affects xylem differentiation of grey poplar (Populus x canescens).
Identifieur interne : 003494 ( Main/Exploration ); précédent : 003493; suivant : 003495Salt stress affects xylem differentiation of grey poplar (Populus x canescens).
Auteurs : María Escalante-Pérez [Allemagne] ; Silke Lautner ; Uwe Nehls ; Anita Selle ; Markus Teuber ; Jörg-Peter Schnitzler ; Thomas Teichmann ; Payam Fayyaz ; Wolfram Hartung ; Andrea Polle ; Jörg Fromm ; Rainer Hedrich ; Peter AcheSource :
- Planta [ 0032-0935 ] ; 2009.
Descripteurs français
- KwdFr :
- ARN messager (génétique), ARN messager (métabolisme), Acide abscissique (métabolisme), Arabidopsis (génétique), Bois (cytologie), Bois (effets des médicaments et des substances chimiques), Canaux potassiques (métabolisme), Chlorure de sodium (pharmacologie), Croisements génétiques (MeSH), Différenciation cellulaire (effets des médicaments et des substances chimiques), Feuilles de plante (effets des médicaments et des substances chimiques), Feuilles de plante (métabolisme), Malates (métabolisme), Phylogenèse (MeSH), Populus (cytologie), Populus (effets des médicaments et des substances chimiques), Populus (génétique), Potassium (métabolisme), Racines de plante (cytologie), Racines de plante (effets des médicaments et des substances chimiques), Régulation de l'expression des gènes végétaux (effets des médicaments et des substances chimiques), Sodium (métabolisme), Stress physiologique (effets des médicaments et des substances chimiques), Transport biologique (effets des médicaments et des substances chimiques), Xylème (cytologie), Xylème (effets des médicaments et des substances chimiques), Xylème (ultrastructure), Éléments (MeSH).
- MESH :
- cytologie : Bois, Populus, Racines de plante, Xylème.
- effets des médicaments et des substances chimiques : Bois, Différenciation cellulaire, Feuilles de plante, Populus, Racines de plante, Régulation de l'expression des gènes végétaux, Stress physiologique, Transport biologique, Xylème.
- génétique : ARN messager, Arabidopsis, Populus.
- métabolisme : ARN messager, Acide abscissique, Canaux potassiques, Feuilles de plante, Malates, Potassium, Sodium.
- pharmacologie : Chlorure de sodium.
- ultrastructure : Croisements génétiques, Phylogenèse, Xylème, Éléments.
English descriptors
- KwdEn :
- Abscisic Acid (metabolism), Arabidopsis (genetics), Biological Transport (drug effects), Cell Differentiation (drug effects), Crosses, Genetic (MeSH), Elements (MeSH), Gene Expression Regulation, Plant (drug effects), Malates (metabolism), Phylogeny (MeSH), Plant Leaves (drug effects), Plant Leaves (metabolism), Plant Roots (cytology), Plant Roots (drug effects), Populus (cytology), Populus (drug effects), Populus (genetics), Potassium (metabolism), Potassium Channels (metabolism), RNA, Messenger (genetics), RNA, Messenger (metabolism), Sodium (metabolism), Sodium Chloride (pharmacology), Stress, Physiological (drug effects), Wood (cytology), Wood (drug effects), Xylem (cytology), Xylem (drug effects), Xylem (ultrastructure).
- MESH :
- chemical , genetics : RNA, Messenger.
- chemical , metabolism : Abscisic Acid, Malates, Potassium, Potassium Channels, RNA, Messenger, Sodium.
- cytology : Plant Roots, Populus, Wood, Xylem.
- drug effects : Biological Transport, Cell Differentiation, Gene Expression Regulation, Plant, Plant Leaves, Plant Roots, Populus, Stress, Physiological, Wood, Xylem.
- genetics : Arabidopsis, Populus.
- metabolism : Plant Leaves.
- chemical , pharmacology : Sodium Chloride.
- ultrastructure : Xylem.
- Crosses, Genetic, Elements, Phylogeny.
Abstract
In this study the impact of salt stress on the physiology and wood structure of the salt-sensitive Populus x canescens was investigated. Two weeks of salt stress altered wood anatomy significantly. The xylem differentiation zone was reduced and the resulting vessels exhibited reduced lumina. To understand this phenomenon, ion composition, levels of corresponding transcripts and of the stress hormone ABA were analysed. With increasing sodium and chloride concentrations, a general reduction of potassium was found in roots and shoots, but not in leaves. Consequently, the corresponding K+ channel transcripts in roots favoured K+ release. The overall osmolarity in leaves was up to fourfold higher than in roots or shoots. Therefore, adjustment of the K+/Na+ balance seemed not to be required in leaves. Sodium increased gradually from roots to shoots and then to leaves indicating that sodium storage took place first in roots, then in shoots, and finally in leaves to protect photosynthesis from salt effects as long as possible. Since leaf abscisic acid levels markedly increased, stomatal closure seemed to limit CO2 uptake. As a consequence, diminished nutrient supply to the cambium in combination with lowered shoot K+ content led to decreased vessel lumina, and a reduction of the radial cambium was observed. Thus, xylem differentiation was curtailed and the development of full size vessels was impaired.
DOI: 10.1007/s00425-008-0829-7
PubMed: 18946679
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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qualifier="pharmacology" xml:lang="en"><term>Sodium Chloride</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="en"><term>Xylem</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Crosses, Genetic</term><term>Elements</term><term>Phylogeny</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="fr"><term>Croisements génétiques</term><term>Phylogenèse</term><term>Xylème</term><term>Éléments</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this study the impact of salt stress on the physiology and wood structure of the salt-sensitive Populus x canescens was investigated. Two weeks of salt stress altered wood anatomy significantly. The xylem differentiation zone was reduced and the resulting vessels exhibited reduced lumina. To understand this phenomenon, ion composition, levels of corresponding transcripts and of the stress hormone ABA were analysed. With increasing sodium and chloride concentrations, a general reduction of potassium was found in roots and shoots, but not in leaves. Consequently, the corresponding K+ channel transcripts in roots favoured K+ release. The overall osmolarity in leaves was up to fourfold higher than in roots or shoots. Therefore, adjustment of the K+/Na+ balance seemed not to be required in leaves. Sodium increased gradually from roots to shoots and then to leaves indicating that sodium storage took place first in roots, then in shoots, and finally in leaves to protect photosynthesis from salt effects as long as possible. Since leaf abscisic acid levels markedly increased, stomatal closure seemed to limit CO2 uptake. As a consequence, diminished nutrient supply to the cambium in combination with lowered shoot K+ content led to decreased vessel lumina, and a reduction of the radial cambium was observed. Thus, xylem differentiation was curtailed and the development of full size vessels was impaired.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">18946679</PMID><DateCompleted><Year>2009</Year><Month>04</Month><Day>15</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0032-0935</ISSN><JournalIssue CitedMedium="Print"><Volume>229</Volume><Issue>2</Issue><PubDate><Year>2009</Year><Month>Jan</Month></PubDate></JournalIssue><Title>Planta</Title><ISOAbbreviation>Planta</ISOAbbreviation></Journal><ArticleTitle>Salt stress affects xylem differentiation of grey poplar (Populus x canescens).</ArticleTitle><Pagination><MedlinePgn>299-309</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00425-008-0829-7</ELocationID><Abstract><AbstractText>In this study the impact of salt stress on the physiology and wood structure of the salt-sensitive Populus x canescens was investigated. Two weeks of salt stress altered wood anatomy significantly. The xylem differentiation zone was reduced and the resulting vessels exhibited reduced lumina. To understand this phenomenon, ion composition, levels of corresponding transcripts and of the stress hormone ABA were analysed. With increasing sodium and chloride concentrations, a general reduction of potassium was found in roots and shoots, but not in leaves. Consequently, the corresponding K+ channel transcripts in roots favoured K+ release. The overall osmolarity in leaves was up to fourfold higher than in roots or shoots. Therefore, adjustment of the K+/Na+ balance seemed not to be required in leaves. Sodium increased gradually from roots to shoots and then to leaves indicating that sodium storage took place first in roots, then in shoots, and finally in leaves to protect photosynthesis from salt effects as long as possible. Since leaf abscisic acid levels markedly increased, stomatal closure seemed to limit CO2 uptake. As a consequence, diminished nutrient supply to the cambium in combination with lowered shoot K+ content led to decreased vessel lumina, and a reduction of the radial cambium was observed. Thus, xylem differentiation was curtailed and the development of full size vessels was impaired.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Escalante-Pérez</LastName><ForeName>María</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Universität Würzburg, Biozentrum, Julius-Von-Sachs-Institut Für Biowissenschaften, Julius-Von-Sachs-Platz 2, 97082, Würzburg, Germany.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lautner</LastName><ForeName>Silke</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Nehls</LastName><ForeName>Uwe</ForeName><Initials>U</Initials></Author><Author ValidYN="Y"><LastName>Selle</LastName><ForeName>Anita</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Teuber</LastName><ForeName>Markus</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Schnitzler</LastName><ForeName>Jörg-Peter</ForeName><Initials>JP</Initials></Author><Author ValidYN="Y"><LastName>Teichmann</LastName><ForeName>Thomas</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Fayyaz</LastName><ForeName>Payam</ForeName><Initials>P</Initials></Author><Author ValidYN="Y"><LastName>Hartung</LastName><ForeName>Wolfram</ForeName><Initials>W</Initials></Author><Author ValidYN="Y"><LastName>Polle</LastName><ForeName>Andrea</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Fromm</LastName><ForeName>Jörg</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Hedrich</LastName><ForeName>Rainer</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Ache</LastName><ForeName>Peter</ForeName><Initials>P</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><ArticleDate DateType="Electronic"><Year>2008</Year><Month>10</Month><Day>23</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Planta</MedlineTA><NlmUniqueID>1250576</NlmUniqueID><ISSNLinking>0032-0935</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D004602">Elements</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D008293">Malates</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D015221">Potassium Channels</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012333">RNA, Messenger</NameOfSubstance></Chemical><Chemical><RegistryNumber>451W47IQ8X</RegistryNumber><NameOfSubstance UI="D012965">Sodium Chloride</NameOfSubstance></Chemical><Chemical><RegistryNumber>72S9A8J5GW</RegistryNumber><NameOfSubstance UI="D000040">Abscisic Acid</NameOfSubstance></Chemical><Chemical><RegistryNumber>817L1N4CKP</RegistryNumber><NameOfSubstance UI="C030298">malic acid</NameOfSubstance></Chemical><Chemical><RegistryNumber>9NEZ333N27</RegistryNumber><NameOfSubstance UI="D012964">Sodium</NameOfSubstance></Chemical><Chemical><RegistryNumber>RWP5GA015D</RegistryNumber><NameOfSubstance UI="D011188">Potassium</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000040" MajorTopicYN="N">Abscisic Acid</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017360" MajorTopicYN="N">Arabidopsis</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D001692" MajorTopicYN="N">Biological Transport</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug 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IdType="pubmed">9741629</ArticleId></ArticleIdList></Reference></ReferenceList></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="Fayyaz, Payam" sort="Fayyaz, Payam" uniqKey="Fayyaz P" first="Payam" last="Fayyaz">Payam Fayyaz</name><name sortKey="Fromm, Jorg" sort="Fromm, Jorg" uniqKey="Fromm J" first="Jörg" last="Fromm">Jörg Fromm</name><name sortKey="Hartung, Wolfram" sort="Hartung, Wolfram" uniqKey="Hartung W" first="Wolfram" last="Hartung">Wolfram Hartung</name><name sortKey="Hedrich, Rainer" sort="Hedrich, Rainer" uniqKey="Hedrich R" first="Rainer" last="Hedrich">Rainer Hedrich</name><name sortKey="Lautner, Silke" sort="Lautner, Silke" 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