Salinity tolerance of Populus.
Identifieur interne : 003136 ( Main/Exploration ); précédent : 003135; suivant : 003137Salinity tolerance of Populus.
Auteurs : S. Chen [République populaire de Chine] ; A. PolleSource :
- Plant biology (Stuttgart, Germany) [ 1438-8677 ] ; 2010.
Descripteurs français
- KwdFr :
- Adaptation physiologique (MeSH), Antiports (métabolisme), Calcium (métabolisme), Chlorure de sodium (pharmacologie), Chlorures (métabolisme), Eau (métabolisme), Espèces réactives de l'oxygène (MeSH), Génotype (MeSH), Plantes tolérantes au sel (physiologie), Populus (génétique), Populus (physiologie), Potassium (métabolisme), Sodium (métabolisme), Sol (analyse), Sécheresses (MeSH), Végétaux génétiquement modifiés (physiologie).
- MESH :
- analyse : Sol.
- génétique : Populus.
- métabolisme : Antiports, Calcium, Chlorures, Eau, Potassium, Sodium.
- pharmacologie : Chlorure de sodium.
- physiologie : Plantes tolérantes au sel, Populus, Végétaux génétiquement modifiés.
- Adaptation physiologique, Espèces réactives de l'oxygène, Génotype, Sécheresses.
English descriptors
- KwdEn :
- Adaptation, Physiological (MeSH), Antiporters (metabolism), Calcium (metabolism), Chlorides (metabolism), Droughts (MeSH), Genotype (MeSH), Plants, Genetically Modified (physiology), Populus (genetics), Populus (physiology), Potassium (metabolism), Reactive Oxygen Species (MeSH), Salt-Tolerant Plants (physiology), Sodium (metabolism), Sodium Chloride (pharmacology), Soil (analysis), Water (metabolism).
- MESH :
- chemical , analysis : Soil.
- chemical , metabolism : Antiporters, Calcium, Chlorides, Potassium, Sodium, Water.
- genetics : Populus.
- chemical , pharmacology : Sodium Chloride.
- physiology : Plants, Genetically Modified, Populus, Salt-Tolerant Plants.
- Adaptation, Physiological, Droughts, Genotype, Reactive Oxygen Species.
Abstract
The genus Populus has a wide distribution in different climatic zones. Besides its economic and ecological relevance, Populus also serves as a model for elucidating physiological and molecular mechanisms of stress tolerance in tree species. In this review, adaptation strategies of poplars to excess soil salinity are addressed at different scales, from the cellular to the whole-plant level. Striking differences in salt tolerance exist among different poplar species and ecotypes, with Populus euphratica being outstanding in this respect. Key mechanisms identified in this species to mediate salt tolerance are compartmentalisation of Cl(-) in the vacuoles of the root cortex cells, diminished xylem loading of NaCl, activation of Na(+) extrusion into the soil solution under stress, together with simultaneously avoiding excessive K(+) loss by regulation of depolarisation-activated cation channels. This leads to improved maintenance of the K(+)/Na(+) balance, a crucial precondition for survival under salt stress. Leaf cells of this species are able to compartmentalise Na(+) preferentially in the apoplast, whereas in susceptible poplar species, as well as in crop plants, vacuolar Na(+) deposition precedes apoplastic transport. ABA, Ca(2+)and ROS are involved in stress sensing, with higher or faster activation of defences in tolerant than in susceptible poplar species. P. euphratica develops leaf succulence after prolonged salt exposure as a plastic morphological adaptation that leads to salt dilution. Transgenic approaches to improve salt tolerance by transformation of candidate genes have had limited success, since salt tolerance is a multigenic trait. In future attempts towards increased salt resistance, barriers between different poplar sections must be overcome and application of novel biotechnological tools, such as gene stacking, are recommended.
DOI: 10.1111/j.1438-8677.2009.00301.x
PubMed: 20398238
Affiliations:
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Polle</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="RBID">pubmed:20398238</idno><idno type="pmid">20398238</idno><idno type="doi">10.1111/j.1438-8677.2009.00301.x</idno><idno type="wicri:Area/Main/Corpus">003218</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003218</idno><idno type="wicri:Area/Main/Curation">003218</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">003218</idno><idno type="wicri:Area/Main/Exploration">003218</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Salinity tolerance of Populus.</title><author><name sortKey="Chen, S" sort="Chen, S" uniqKey="Chen S" first="S" last="Chen">S. Chen</name><affiliation wicri:level="3"><nlm:affiliation>College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Biological Sciences and Technology, Beijing Forestry University, Beijing</wicri:regionArea><placeName><settlement type="city">Pékin</settlement></placeName></affiliation></author><author><name sortKey="Polle, A" sort="Polle, A" uniqKey="Polle A" first="A" last="Polle">A. 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Besides its economic and ecological relevance, Populus also serves as a model for elucidating physiological and molecular mechanisms of stress tolerance in tree species. In this review, adaptation strategies of poplars to excess soil salinity are addressed at different scales, from the cellular to the whole-plant level. Striking differences in salt tolerance exist among different poplar species and ecotypes, with Populus euphratica being outstanding in this respect. Key mechanisms identified in this species to mediate salt tolerance are compartmentalisation of Cl(-) in the vacuoles of the root cortex cells, diminished xylem loading of NaCl, activation of Na(+) extrusion into the soil solution under stress, together with simultaneously avoiding excessive K(+) loss by regulation of depolarisation-activated cation channels. This leads to improved maintenance of the K(+)/Na(+) balance, a crucial precondition for survival under salt stress. Leaf cells of this species are able to compartmentalise Na(+) preferentially in the apoplast, whereas in susceptible poplar species, as well as in crop plants, vacuolar Na(+) deposition precedes apoplastic transport. ABA, Ca(2+)and ROS are involved in stress sensing, with higher or faster activation of defences in tolerant than in susceptible poplar species. P. euphratica develops leaf succulence after prolonged salt exposure as a plastic morphological adaptation that leads to salt dilution. Transgenic approaches to improve salt tolerance by transformation of candidate genes have had limited success, since salt tolerance is a multigenic trait. In future attempts towards increased salt resistance, barriers between different poplar sections must be overcome and application of novel biotechnological tools, such as gene stacking, are recommended.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">20398238</PMID><DateCompleted><Year>2010</Year><Month>06</Month><Day>28</Day></DateCompleted><DateRevised><Year>2017</Year><Month>11</Month><Day>16</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1438-8677</ISSN><JournalIssue CitedMedium="Internet"><Volume>12</Volume><Issue>2</Issue><PubDate><Year>2010</Year><Month>Mar</Month></PubDate></JournalIssue><Title>Plant biology (Stuttgart, Germany)</Title><ISOAbbreviation>Plant Biol (Stuttg)</ISOAbbreviation></Journal><ArticleTitle>Salinity tolerance of Populus.</ArticleTitle><Pagination><MedlinePgn>317-33</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1438-8677.2009.00301.x</ELocationID><Abstract><AbstractText>The genus Populus has a wide distribution in different climatic zones. Besides its economic and ecological relevance, Populus also serves as a model for elucidating physiological and molecular mechanisms of stress tolerance in tree species. In this review, adaptation strategies of poplars to excess soil salinity are addressed at different scales, from the cellular to the whole-plant level. Striking differences in salt tolerance exist among different poplar species and ecotypes, with Populus euphratica being outstanding in this respect. Key mechanisms identified in this species to mediate salt tolerance are compartmentalisation of Cl(-) in the vacuoles of the root cortex cells, diminished xylem loading of NaCl, activation of Na(+) extrusion into the soil solution under stress, together with simultaneously avoiding excessive K(+) loss by regulation of depolarisation-activated cation channels. This leads to improved maintenance of the K(+)/Na(+) balance, a crucial precondition for survival under salt stress. Leaf cells of this species are able to compartmentalise Na(+) preferentially in the apoplast, whereas in susceptible poplar species, as well as in crop plants, vacuolar Na(+) deposition precedes apoplastic transport. ABA, Ca(2+)and ROS are involved in stress sensing, with higher or faster activation of defences in tolerant than in susceptible poplar species. P. euphratica develops leaf succulence after prolonged salt exposure as a plastic morphological adaptation that leads to salt dilution. Transgenic approaches to improve salt tolerance by transformation of candidate genes have had limited success, since salt tolerance is a multigenic trait. In future attempts towards increased salt resistance, barriers between different poplar sections must be overcome and application of novel biotechnological tools, such as gene stacking, are recommended.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Chen</LastName><ForeName>S</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Polle</LastName><ForeName>A</ForeName><Initials>A</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType UI="D016454">Review</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Plant Biol (Stuttg)</MedlineTA><NlmUniqueID>101148926</NlmUniqueID><ISSNLinking>1435-8603</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D017920">Antiporters</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D002712">Chlorides</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D017382">Reactive Oxygen Species</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical><Chemical><RegistryNumber>451W47IQ8X</RegistryNumber><NameOfSubstance UI="D012965">Sodium Chloride</NameOfSubstance></Chemical><Chemical><RegistryNumber>9NEZ333N27</RegistryNumber><NameOfSubstance 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UI="D055051" MajorTopicYN="N">Salt-Tolerant Plants</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012964" MajorTopicYN="N">Sodium</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012965" MajorTopicYN="N">Sodium Chloride</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading></MeshHeadingList><NumberOfReferences>122</NumberOfReferences></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>4</Month><Day>20</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>4</Month><Day>20</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>6</Month><Day>29</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">20398238</ArticleId><ArticleId IdType="pii">PLB301</ArticleId><ArticleId IdType="doi">10.1111/j.1438-8677.2009.00301.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>République populaire de Chine</li></country><settlement><li>Pékin</li></settlement></list><tree><noCountry><name sortKey="Polle, A" sort="Polle, A" uniqKey="Polle A" first="A" last="Polle">A. Polle</name></noCountry><country name="République populaire de Chine"><noRegion><name sortKey="Chen, S" sort="Chen, S" uniqKey="Chen S" first="S" last="Chen">S. Chen</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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