Temperature signals contribute to the timing of photoperiodic growth cessation and bud set in poplar.
Identifieur interne : 002C93 ( Main/Exploration ); précédent : 002C92; suivant : 002C94Temperature signals contribute to the timing of photoperiodic growth cessation and bud set in poplar.
Auteurs : Antje Rohde [Belgique] ; Catherine Bastien ; Wout BoerjanSource :
- Tree physiology [ 1758-4469 ] ; 2011.
Descripteurs français
- KwdFr :
- Acclimatation (physiologie), Arbres (croissance et développement), Arbres (génétique), Chimère (MeSH), Europe (MeSH), Photopériode (MeSH), Populus (croissance et développement), Populus (génétique), Rythme circadien (MeSH), Saisons (MeSH), Température (MeSH), Transduction du signal (MeSH), Variation génétique (MeSH).
- MESH :
- croissance et développement : Arbres, Populus.
- génétique : Arbres, Populus.
- physiologie : Acclimatation.
- Chimère, Europe, Photopériode, Rythme circadien, Saisons, Température, Transduction du signal, Variation génétique.
English descriptors
- KwdEn :
- MESH :
- geographic : Europe.
- genetics : Populus, Trees.
- growth & development : Populus, Trees.
- physiology : Acclimatization.
- Chimera, Circadian Rhythm, Genetic Variation, Photoperiod, Seasons, Signal Transduction, Temperature.
Abstract
Bud set, the cornerstone delimiting the seasonal growth period in trees, is the dynamic net result of the often photoperiod-controlled growth cessation and the subsequent bud formation. Here, we show that in hybrid poplar, the critical day length for growth cessation and the duration of bud formation each vary with local climatic conditions in identical genotypes. The detailed dissection of bud set suggests temperature as one additional environmental factor that modifies the sensitivity to day-length signals at growth cessation and influences the duration of bud formation in poplar. The ability of perennial plants to integrate additional environmental signals with photoperiod signaling may add to short-term acclimatization to the predicted longer growing seasons in future climates.
DOI: 10.1093/treephys/tpr038
PubMed: 21636689
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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<author><name sortKey="Bastien, Catherine" sort="Bastien, Catherine" uniqKey="Bastien C" first="Catherine" last="Bastien">Catherine Bastien</name>
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<author><name sortKey="Boerjan, Wout" sort="Boerjan, Wout" uniqKey="Boerjan W" first="Wout" last="Boerjan">Wout Boerjan</name>
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<term>Genetic Variation (MeSH)</term>
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<term>Populus (genetics)</term>
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<term>Europe (MeSH)</term>
<term>Photopériode (MeSH)</term>
<term>Populus (croissance et développement)</term>
<term>Populus (génétique)</term>
<term>Rythme circadien (MeSH)</term>
<term>Saisons (MeSH)</term>
<term>Température (MeSH)</term>
<term>Transduction du signal (MeSH)</term>
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<front><div type="abstract" xml:lang="en">Bud set, the cornerstone delimiting the seasonal growth period in trees, is the dynamic net result of the often photoperiod-controlled growth cessation and the subsequent bud formation. Here, we show that in hybrid poplar, the critical day length for growth cessation and the duration of bud formation each vary with local climatic conditions in identical genotypes. The detailed dissection of bud set suggests temperature as one additional environmental factor that modifies the sensitivity to day-length signals at growth cessation and influences the duration of bud formation in poplar. The ability of perennial plants to integrate additional environmental signals with photoperiod signaling may add to short-term acclimatization to the predicted longer growing seasons in future climates.</div>
</front>
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