Independent activation of cold acclimation by low temperature and short photoperiod in hybrid aspen.
Identifieur interne : 004574 ( Main/Exploration ); précédent : 004573; suivant : 004575Independent activation of cold acclimation by low temperature and short photoperiod in hybrid aspen.
Auteurs : Annikki Welling [Finlande] ; Thomas Moritz ; E Tapio Palva ; Olavi JunttilaSource :
- Plant physiology [ 0032-0889 ] ; 2002.
Descripteurs français
- KwdFr :
- Acclimatation (physiologie), Acide abscissique (métabolisme), Acide abscissique (pharmacologie), Basse température (MeSH), Congélation (MeSH), Dessiccation (MeSH), Feuilles de plante (physiologie), Lumière (MeSH), Photopériode (MeSH), Phytochrome (génétique), Phytochrome (physiologie), Phytochrome A (MeSH), Protéines du choc thermique (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 (effets des radiations), Saisons (MeSH), Salicaceae (croissance et développement), Salicaceae (génétique), Salicaceae (métabolisme), Tiges de plante (physiologie), Vigueur hybride (physiologie).
- MESH :
- croissance et développement : Salicaceae.
- effets des médicaments et des substances chimiques : Régulation de l'expression des gènes végétaux.
- effets des radiations : Régulation de l'expression des gènes végétaux.
- génétique : Phytochrome, Salicaceae.
- métabolisme : Acide abscissique, Protéines du choc thermique, Protéines végétales, Salicaceae.
- pharmacologie : Acide abscissique.
- physiologie : Acclimatation, Feuilles de plante, Phytochrome, Tiges de plante, Vigueur hybride.
- Basse température, Congélation, Dessiccation, Lumière, Photopériode, Phytochrome A, Saisons.
English descriptors
- KwdEn :
- Abscisic Acid (metabolism), Abscisic Acid (pharmacology), Acclimatization (physiology), Cold Temperature (MeSH), Desiccation (MeSH), Freezing (MeSH), Gene Expression Regulation, Plant (drug effects), Gene Expression Regulation, Plant (radiation effects), Heat-Shock Proteins (metabolism), Hybrid Vigor (physiology), Light (MeSH), Photoperiod (MeSH), Phytochrome (genetics), Phytochrome (physiology), Phytochrome A (MeSH), Plant Leaves (physiology), Plant Proteins (metabolism), Plant Stems (physiology), Salicaceae (genetics), Salicaceae (growth & development), Salicaceae (metabolism), Seasons (MeSH).
- MESH :
- chemical , genetics : Phytochrome.
- chemical , metabolism : Abscisic Acid, Heat-Shock Proteins, Plant Proteins.
- chemical , pharmacology : Abscisic Acid.
- drug effects : Gene Expression Regulation, Plant.
- genetics : Salicaceae.
- growth & development : Salicaceae.
- metabolism : Salicaceae.
- physiology : Acclimatization, Hybrid Vigor, Phytochrome, Plant Leaves, Plant Stems.
- radiation effects : Gene Expression Regulation, Plant.
- Cold Temperature, Desiccation, Freezing, Light, Photoperiod, Phytochrome A, Seasons.
Abstract
Temperate zone woody plants cold acclimate in response to both short daylength (SD) and low temperature (LT). We were able to show that these two environmental cues induce cold acclimation independently by comparing the wild type (WT) and the transgenic hybrid aspen (Populus tremula x Populus tremuloides Michx.) line 22 overexpressing the oat (Avena sativa) PHYTOCHROME A gene. Line 22 was not able to detect the SD and, consequently, did not stop growing in SD conditions. This resulted in an impaired freezing tolerance development under SD. In contrast, exposure to LT resulted in cold acclimation of line 22 to a degree comparable with the WT. In contrast to the WT, line 22 could not dehydrate the overwintering tissues or induce the production of dehydrins (DHN) under SD conditions. Furthermore, abscisic acid (ABA) content of the buds of line 22 were the same under SD and long daylength, whereas prolonged SD exposure decreased the ABA level in the WT. LT exposure resulted in a rapid accumulation of DHN in both the WT and line 22. Similarly, ABA content increased transiently in both the WT and line 22. Our results indicate that phytochrome A is involved in photoperiodic regulation of ABA and DHN levels, but at LT they are regulated by a different mechanism. Although SD and LT induce cold acclimation independently, ABA and DHN may play important roles in both modes of acclimation.
DOI: 10.1104/pp.003814
PubMed: 12177476
PubMed Central: PMC166751
Affiliations:
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xml:lang="en">Independent activation of cold acclimation by low temperature and short photoperiod in hybrid aspen.</title><author><name sortKey="Welling, Annikki" sort="Welling, Annikki" uniqKey="Welling A" first="Annikki" last="Welling">Annikki Welling</name><affiliation wicri:level="4"><nlm:affiliation>Department of Biomedical Sciences, Division of Genetics, and Institute of Biotechnology, University of Helsinki, Finland. welling@operoni.helsinki.fi</nlm:affiliation><country xml:lang="fr">Finlande</country><wicri:regionArea>Department of Biomedical Sciences, Division of Genetics, and Institute of Biotechnology, University of Helsinki</wicri:regionArea><placeName><settlement type="city">Helsinki</settlement><region type="région" nuts="2">Uusimaa</region></placeName><orgName type="university">Université d'Helsinki</orgName></affiliation></author><author><name sortKey="Moritz, Thomas" sort="Moritz, Thomas" uniqKey="Moritz T" first="Thomas" last="Moritz">Thomas Moritz</name></author><author><name sortKey="Palva, E Tapio" sort="Palva, E Tapio" uniqKey="Palva E" first="E Tapio" last="Palva">E Tapio Palva</name></author><author><name sortKey="Junttila, Olavi" sort="Junttila, Olavi" uniqKey="Junttila O" first="Olavi" last="Junttila">Olavi Junttila</name></author></analytic><series><title level="j">Plant physiology</title><idno type="ISSN">0032-0889</idno><imprint><date when="2002" type="published">2002</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Abscisic Acid (metabolism)</term><term>Abscisic Acid (pharmacology)</term><term>Acclimatization (physiology)</term><term>Cold Temperature (MeSH)</term><term>Desiccation (MeSH)</term><term>Freezing (MeSH)</term><term>Gene Expression Regulation, Plant (drug effects)</term><term>Gene Expression Regulation, Plant (radiation effects)</term><term>Heat-Shock Proteins (metabolism)</term><term>Hybrid Vigor (physiology)</term><term>Light (MeSH)</term><term>Photoperiod (MeSH)</term><term>Phytochrome (genetics)</term><term>Phytochrome (physiology)</term><term>Phytochrome A (MeSH)</term><term>Plant Leaves (physiology)</term><term>Plant Proteins (metabolism)</term><term>Plant Stems (physiology)</term><term>Salicaceae (genetics)</term><term>Salicaceae (growth & development)</term><term>Salicaceae (metabolism)</term><term>Seasons (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acclimatation (physiologie)</term><term>Acide abscissique (métabolisme)</term><term>Acide abscissique (pharmacologie)</term><term>Basse température (MeSH)</term><term>Congélation (MeSH)</term><term>Dessiccation (MeSH)</term><term>Feuilles de plante (physiologie)</term><term>Lumière (MeSH)</term><term>Photopériode (MeSH)</term><term>Phytochrome (génétique)</term><term>Phytochrome (physiologie)</term><term>Phytochrome A (MeSH)</term><term>Protéines du choc thermique (métabolisme)</term><term>Protéines 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scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Gene Expression Regulation, Plant</term></keywords><keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Régulation de l'expression des gènes végétaux</term></keywords><keywords scheme="MESH" qualifier="effets des radiations" xml:lang="fr"><term>Régulation de l'expression des gènes végétaux</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Salicaceae</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Salicaceae</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Phytochrome</term><term>Salicaceae</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Salicaceae</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Acide abscissique</term><term>Protéines du choc thermique</term><term>Protéines 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température</term><term>Congélation</term><term>Dessiccation</term><term>Lumière</term><term>Photopériode</term><term>Phytochrome A</term><term>Saisons</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Temperate zone woody plants cold acclimate in response to both short daylength (SD) and low temperature (LT). We were able to show that these two environmental cues induce cold acclimation independently by comparing the wild type (WT) and the transgenic hybrid aspen (Populus tremula x Populus tremuloides Michx.) line 22 overexpressing the oat (Avena sativa) PHYTOCHROME A gene. Line 22 was not able to detect the SD and, consequently, did not stop growing in SD conditions. This resulted in an impaired freezing tolerance development under SD. In contrast, exposure to LT resulted in cold acclimation of line 22 to a degree comparable with the WT. In contrast to the WT, line 22 could not dehydrate the overwintering tissues or induce the production of dehydrins (DHN) under SD conditions. Furthermore, abscisic acid (ABA) content of the buds of line 22 were the same under SD and long daylength, whereas prolonged SD exposure decreased the ABA level in the WT. LT exposure resulted in a rapid accumulation of DHN in both the WT and line 22. Similarly, ABA content increased transiently in both the WT and line 22. Our results indicate that phytochrome A is involved in photoperiodic regulation of ABA and DHN levels, but at LT they are regulated by a different mechanism. Although SD and LT induce cold acclimation independently, ABA and DHN may play important roles in both modes of acclimation.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">12177476</PMID><DateCompleted><Year>2002</Year><Month>12</Month><Day>03</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>30</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0032-0889</ISSN><JournalIssue CitedMedium="Print"><Volume>129</Volume><Issue>4</Issue><PubDate><Year>2002</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Plant physiology</Title><ISOAbbreviation>Plant Physiol</ISOAbbreviation></Journal><ArticleTitle>Independent activation of cold acclimation by low temperature and short photoperiod in hybrid aspen.</ArticleTitle><Pagination><MedlinePgn>1633-41</MedlinePgn></Pagination><Abstract><AbstractText>Temperate zone woody plants cold acclimate in response to both short daylength (SD) and low temperature (LT). We were able to show that these two environmental cues induce cold acclimation independently by comparing the wild type (WT) and the transgenic hybrid aspen (Populus tremula x Populus tremuloides Michx.) line 22 overexpressing the oat (Avena sativa) PHYTOCHROME A gene. Line 22 was not able to detect the SD and, consequently, did not stop growing in SD conditions. This resulted in an impaired freezing tolerance development under SD. In contrast, exposure to LT resulted in cold acclimation of line 22 to a degree comparable with the WT. In contrast to the WT, line 22 could not dehydrate the overwintering tissues or induce the production of dehydrins (DHN) under SD conditions. Furthermore, abscisic acid (ABA) content of the buds of line 22 were the same under SD and long daylength, whereas prolonged SD exposure decreased the ABA level in the WT. LT exposure resulted in a rapid accumulation of DHN in both the WT and line 22. Similarly, ABA content increased transiently in both the WT and line 22. Our results indicate that phytochrome A is involved in photoperiodic regulation of ABA and DHN levels, but at LT they are regulated by a different mechanism. Although SD and LT induce cold acclimation independently, ABA and DHN may play important roles in both modes of acclimation.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Welling</LastName><ForeName>Annikki</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Department of Biomedical Sciences, Division of Genetics, and Institute of Biotechnology, University of Helsinki, Finland. welling@operoni.helsinki.fi</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Moritz</LastName><ForeName>Thomas</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Palva</LastName><ForeName>E Tapio</ForeName><Initials>ET</Initials></Author><Author ValidYN="Y"><LastName>Junttila</LastName><ForeName>Olavi</ForeName><Initials>O</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D003160">Comparative Study</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Physiol</MedlineTA><NlmUniqueID>0401224</NlmUniqueID><ISSNLinking>0032-0889</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D006360">Heat-Shock Proteins</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D051942">Phytochrome A</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010940">Plant Proteins</NameOfSubstance></Chemical><Chemical><RegistryNumber>11121-56-5</RegistryNumber><NameOfSubstance UI="D010834">Phytochrome</NameOfSubstance></Chemical><Chemical><RegistryNumber>134711-03-8</RegistryNumber><NameOfSubstance UI="C070556">dehydrin proteins, plant</NameOfSubstance></Chemical><Chemical><RegistryNumber>72S9A8J5GW</RegistryNumber><NameOfSubstance UI="D000040">Abscisic Acid</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000040" MajorTopicYN="N">Abscisic Acid</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D000064" MajorTopicYN="N">Acclimatization</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003080" MajorTopicYN="N">Cold Temperature</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003890" MajorTopicYN="N">Desiccation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005615" MajorTopicYN="N">Freezing</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018506" MajorTopicYN="N">Gene Expression Regulation, Plant</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000528" MajorTopicYN="N">radiation effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006360" MajorTopicYN="N">Heat-Shock Proteins</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006823" MajorTopicYN="N">Hybrid Vigor</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008027" MajorTopicYN="N">Light</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017440" MajorTopicYN="Y">Photoperiod</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010834" MajorTopicYN="N">Phytochrome</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D051942" MajorTopicYN="N">Phytochrome A</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010940" MajorTopicYN="N">Plant Proteins</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D031308" MajorTopicYN="N">Salicaceae</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012621" MajorTopicYN="N">Seasons</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2002</Year><Month>8</Month><Day>15</Day><Hour>10</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2002</Year><Month>12</Month><Day>4</Day><Hour>4</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2002</Year><Month>8</Month><Day>15</Day><Hour>10</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">12177476</ArticleId><ArticleId IdType="doi">10.1104/pp.003814</ArticleId><ArticleId IdType="pmc">PMC166751</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>Science. 1970 Sep 25;169(3952):1269-78</Citation><ArticleIdList><ArticleId 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uniqKey="Moritz T" first="Thomas" last="Moritz">Thomas Moritz</name><name sortKey="Palva, E Tapio" sort="Palva, E Tapio" uniqKey="Palva E" first="E Tapio" last="Palva">E Tapio Palva</name></noCountry><country name="Finlande"><region name="Uusimaa"><name sortKey="Welling, Annikki" sort="Welling, Annikki" uniqKey="Welling A" first="Annikki" last="Welling">Annikki Welling</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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