title: Regulation of flowering by trehalose-6-phosphate signaling in Arabidopsis thaliana.
abstract: The timing of the induction of flowering determines to a large extent the reproductive success of plants. Plants integrate diverse environmental and endogenous signals to ensure the timely transition from vegetative growth to flowering. Carbohydrates are thought to play a crucial role in the regulation of flowering, and trehalose-6-phosphate (T6P) has been suggested to function as a proxy for carbohydrate status in plants. The loss of TREHALOSE-6-PHOSPHATE SYNTHASE 1 (TPS1) causes Arabidopsis thaliana to flower extremely late, even under otherwise inductive environmental conditions. This suggests that TPS1 is required for the timely initiation of flowering. We show that the T6P pathway affects flowering both in the leaves and at the shoot meristem, and integrate TPS1 into the existing genetic framework of flowering-time control.
authors: Department of Metabolic Networks, Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam, Germany. vanessa.wahl@mpimp-golm.mpg.de
authors: Vanessa
authors: V
authors: Wahl
authors: Jathish
authors: J
authors: Ponnu
authors: Armin
authors: A
authors: Schlereth
authors: Stéphanie
authors: S
authors: Arrivault
authors: Tobias
authors: T
authors: Langenecker
authors: Annika
authors: A
authors: Franke
authors: Regina
authors: R
authors: Feil
authors: John E
authors: JE
authors: Lunn
authors: Mark
authors: M
authors: Stitt
authors: Markus
authors: M
authors: Schmid
mesh_terms: D017360:Arabidopsis / Q000235:genetics / Q000254:growth & development* / Q000378:metabolism*; D029681:Arabidopsis Proteins / Q000235:genetics / Q000378:metabolism; D002940:Circadian Rhythm; D035264:Flowers / Q000254:growth & development* / Q000378:metabolism; D018506:Gene Expression Regulation, Plant; D005964:Glucosyltransferases / Q000235:genetics / Q000378:metabolism*; D018519:Meristem / Q000378:metabolism; D035683:MicroRNAs / Q000235:genetics / Q000378:metabolism; D049488:Phosphatidylethanolamine Binding Protein / Q000235:genetics / Q000378:metabolism; D017440:Photoperiod; D018515:Plant Leaves / Q000378:metabolism; D018520:Plant Shoots / Q000378:metabolism; D015398:Signal Transduction; D013403:Sugar Phosphates / Q000378:metabolism*; D014199:Trehalose / Q000031:analogs & derivatives* / Q000378:metabolism
chemical_list: D029681:Arabidopsis Proteins; C418905:FT protein, Arabidopsis; D035683:MicroRNAs; C559759:Mirn156 microRNA, Arabidopsis; D049488:Phosphatidylethanolamine Binding Protein; D013403:Sugar Phosphates; C500577:TSF protein, Arabidopsis; C082722:trehalose-6-phosphate; D014199:Trehalose; D005964:Glucosyltransferases; C023180:trehalose-6-phosphate synthase