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Plants 2014, 3(2), 223-250; doi:10.3390/plants3020223
Review

Light Signaling in Bud Outgrowth and Branching in Plants

1,2,* , 1,2,†
,
2,3,†
,
2,3,†
,
2,4, 1,2
,
2,4 and 2,3
1 Université d'Angers, L'Université Nantes Angers Le Mans, Unité Mixte de Recherche 1345 IRHS, Angers F-49000, France 2 SFR 4207 Qualité et Santé du Végétal, Angers F-49000, France 3 Agrocampus-Ouest, Unité Mixte de Recherche 1345 IRHS, Angers F-49000, France 4 INRA, Unité Mixte de Recherche 1345 IRHS, Beaucouzé F-49070, France These authors contributed equally to this work.
* Author to whom correspondence should be addressed.
Received: 18 November 2013 / Revised: 21 March 2014 / Accepted: 25 March 2014 / Published: 23 April 2014
(This article belongs to the Special Issue Plant Light Signalling)
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Abstract

Branching determines the final shape of plants, which influences adaptation, survival and the visual quality of many species. It is an intricate process that includes bud outgrowth and shoot extension, and these in turn respond to environmental cues and light conditions. Light is a powerful environmental factor that impacts multiple processes throughout plant life. The molecular basis of the perception and transduction of the light signal within buds is poorly understood and undoubtedly requires to be further unravelled. This review is based on current knowledge on bud outgrowth-related mechanisms and light-mediated regulation of many physiological processes. It provides an extensive, though not exhaustive, overview of the findings related to this field. In parallel, it points to issues to be addressed in the near future.
Keywords: bud burst; photoperiod; photoreceptor; shade avoidance; hormone; sugar; nitrogen; meristem; apical dominance; architecture; radiation bud burst; photoperiod; photoreceptor; shade avoidance; hormone; sugar; nitrogen; meristem; apical dominance; architecture; radiation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Leduc, N.; Roman, H.; Barbier, F.; Péron, T.; Huché-Thélier, L.; Lothier, J.; Demotes-Mainard, S.; Sakr, S. Light Signaling in Bud Outgrowth and Branching in Plants. Plants 2014, 3, 223-250.

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