The control of autumn senescence in European aspen.
Identifieur interne : 003462 ( Main/Exploration ); précédent : 003461; suivant : 003463The control of autumn senescence in European aspen.
Auteurs : Yvan Fracheboud [Suède] ; Virginia Luquez ; Lars Björkén ; Andreas Sjödin ; Hannele Tuominen ; Stefan JanssonSource :
- Plant physiology [ 0032-0889 ] ; 2009.
Descripteurs français
- KwdFr :
- MESH :
- croissance et développement : Arbres, Populus.
- métabolisme : Chlorophylle.
- Clones cellulaires, Europe, Facteurs temps, Fleurs, Photopériode, Pigmentation, Saisons, Température.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Chlorophyll.
- geographic : Europe.
- growth & development : Populus, Trees.
- Clone Cells, Flowers, Photoperiod, Pigmentation, Seasons, Temperature, Time Factors.
Abstract
The initiation, progression, and natural variation of autumn senescence in European aspen (Populus tremula) was investigated by monitoring chlorophyll degradation in (1) trees growing in natural stands and (2) cloned trees growing in a greenhouse under various light regimes. The main trigger for the initiation of autumn senescence in aspen is the shortening photoperiod, but there was a large degree of variation in the onset of senescence, both within local populations and among trees originating from different populations, where it correlated with the latitude of their respective origins. The variation for onset of senescence with a population was much larger than the variation of bud set. Once started, autumn senescence was accelerated by low temperature and longer nights, and clones that started to senescence late had a faster senescence. Bud set and autumn senescence appeared to be under the control of two independent critical photoperiods, but senescence could not be initiated until a certain time after bud set, suggesting that bud set and growth arrest are important for the trees to acquire competence to respond to the photoperiodic trigger to undergo autumn senescence. A timetable of events related to bud set and autumn senescence is presented.
DOI: 10.1104/pp.108.133249
PubMed: 19201914
PubMed Central: PMC2663763
Affiliations:
Links toward previous steps (curation, corpus...)
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Andreas" uniqKey="Sjodin A" first="Andreas" last="Sjödin">Andreas Sjödin</name></author><author><name sortKey="Tuominen, Hannele" sort="Tuominen, Hannele" uniqKey="Tuominen H" first="Hannele" last="Tuominen">Hannele Tuominen</name></author><author><name sortKey="Jansson, Stefan" sort="Jansson, Stefan" uniqKey="Jansson S" first="Stefan" last="Jansson">Stefan Jansson</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2009">2009</date><idno type="RBID">pubmed:19201914</idno><idno type="pmid">19201914</idno><idno type="doi">10.1104/pp.108.133249</idno><idno type="pmc">PMC2663763</idno><idno type="wicri:Area/Main/Corpus">003658</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003658</idno><idno type="wicri:Area/Main/Curation">003658</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">003658</idno><idno 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Björkén</name></author><author><name sortKey="Sjodin, Andreas" sort="Sjodin, Andreas" uniqKey="Sjodin A" first="Andreas" last="Sjödin">Andreas Sjödin</name></author><author><name sortKey="Tuominen, Hannele" sort="Tuominen, Hannele" uniqKey="Tuominen H" first="Hannele" last="Tuominen">Hannele Tuominen</name></author><author><name sortKey="Jansson, Stefan" sort="Jansson, Stefan" uniqKey="Jansson S" first="Stefan" last="Jansson">Stefan Jansson</name></author></analytic><series><title level="j">Plant physiology</title><idno type="ISSN">0032-0889</idno><imprint><date when="2009" type="published">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Chlorophyll (metabolism)</term><term>Clone Cells (MeSH)</term><term>Europe (MeSH)</term><term>Flowers (MeSH)</term><term>Photoperiod (MeSH)</term><term>Pigmentation (MeSH)</term><term>Populus (growth & development)</term><term>Seasons (MeSH)</term><term>Temperature (MeSH)</term><term>Time Factors (MeSH)</term><term>Trees (growth & development)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Arbres (croissance et développement)</term><term>Chlorophylle (métabolisme)</term><term>Clones cellulaires (MeSH)</term><term>Europe (MeSH)</term><term>Facteurs temps (MeSH)</term><term>Fleurs (MeSH)</term><term>Photopériode (MeSH)</term><term>Pigmentation (MeSH)</term><term>Populus (croissance et développement)</term><term>Saisons (MeSH)</term><term>Température (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Chlorophyll</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Europe</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Arbres</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Populus</term><term>Trees</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Chlorophylle</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Clone Cells</term><term>Flowers</term><term>Photoperiod</term><term>Pigmentation</term><term>Seasons</term><term>Temperature</term><term>Time Factors</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Clones cellulaires</term><term>Europe</term><term>Facteurs temps</term><term>Fleurs</term><term>Photopériode</term><term>Pigmentation</term><term>Saisons</term><term>Température</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The initiation, progression, and natural variation of autumn senescence in European aspen (Populus tremula) was investigated by monitoring chlorophyll degradation in (1) trees growing in natural stands and (2) cloned trees growing in a greenhouse under various light regimes. The main trigger for the initiation of autumn senescence in aspen is the shortening photoperiod, but there was a large degree of variation in the onset of senescence, both within local populations and among trees originating from different populations, where it correlated with the latitude of their respective origins. The variation for onset of senescence with a population was much larger than the variation of bud set. Once started, autumn senescence was accelerated by low temperature and longer nights, and clones that started to senescence late had a faster senescence. Bud set and autumn senescence appeared to be under the control of two independent critical photoperiods, but senescence could not be initiated until a certain time after bud set, suggesting that bud set and growth arrest are important for the trees to acquire competence to respond to the photoperiodic trigger to undergo autumn senescence. A timetable of events related to bud set and autumn senescence is presented.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19201914</PMID><DateCompleted><Year>2009</Year><Month>06</Month><Day>16</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0032-0889</ISSN><JournalIssue CitedMedium="Print"><Volume>149</Volume><Issue>4</Issue><PubDate><Year>2009</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Plant physiology</Title><ISOAbbreviation>Plant Physiol</ISOAbbreviation></Journal><ArticleTitle>The control of autumn senescence in European aspen.</ArticleTitle><Pagination><MedlinePgn>1982-91</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1104/pp.108.133249</ELocationID><Abstract><AbstractText>The initiation, progression, and natural variation of autumn senescence in European aspen (Populus tremula) was investigated by monitoring chlorophyll degradation in (1) trees growing in natural stands and (2) cloned trees growing in a greenhouse under various light regimes. The main trigger for the initiation of autumn senescence in aspen is the shortening photoperiod, but there was a large degree of variation in the onset of senescence, both within local populations and among trees originating from different populations, where it correlated with the latitude of their respective origins. The variation for onset of senescence with a population was much larger than the variation of bud set. Once started, autumn senescence was accelerated by low temperature and longer nights, and clones that started to senescence late had a faster senescence. Bud set and autumn senescence appeared to be under the control of two independent critical photoperiods, but senescence could not be initiated until a certain time after bud set, suggesting that bud set and growth arrest are important for the trees to acquire competence to respond to the photoperiodic trigger to undergo autumn senescence. A timetable of events related to bud set and autumn senescence is presented.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Fracheboud</LastName><ForeName>Yvan</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>Umeå Plant Science Center, Department of Plant Physiology, Umeå University, SE-90187 Umeå, Sweden.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Luquez</LastName><ForeName>Virginia</ForeName><Initials>V</Initials></Author><Author ValidYN="Y"><LastName>Björkén</LastName><ForeName>Lars</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>Sjödin</LastName><ForeName>Andreas</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Tuominen</LastName><ForeName>Hannele</ForeName><Initials>H</Initials></Author><Author 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last="Jansson">Stefan Jansson</name><name sortKey="Luquez, Virginia" sort="Luquez, Virginia" uniqKey="Luquez V" first="Virginia" last="Luquez">Virginia Luquez</name><name sortKey="Sjodin, Andreas" sort="Sjodin, Andreas" uniqKey="Sjodin A" first="Andreas" last="Sjödin">Andreas Sjödin</name><name sortKey="Tuominen, Hannele" sort="Tuominen, Hannele" uniqKey="Tuominen H" first="Hannele" last="Tuominen">Hannele Tuominen</name></noCountry><country name="Suède"><noRegion><name sortKey="Fracheboud, Yvan" sort="Fracheboud, Yvan" uniqKey="Fracheboud Y" first="Yvan" last="Fracheboud">Yvan Fracheboud</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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