English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/5102
Compartir / Impacto:
Add this article to your Mendeley library MendeleyBASE
Citado 339 veces en Web of Knowledge®  |  Pub MebCentral Ver citas en PubMed Central  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título : Sugars and Circadian Regulation Make Major Contributions to the Global Regulation of Diurnal Gene Expression in Arabidopsis
Autor : Bläsing, Oliver E.; Gibon, Yves; Günther, Manuela; Höhne, Melanie; Morcuende, Rosa ; Osuna, Daniel; Thimm, Oliver; Scheible, Wolf-Rüdiger; Stitt, Mark
Fecha de publicación : dic-2005
Editor: American Society of Plant Physiologists
Citación : Plant Cell 17(12): 3257–3281 (2005)
Resumen: The diurnal cycle strongly influences many plant metabolic and physiological processes. Arabidopsis thaliana rosettes were harvested six times during 12-h-light/12-h-dark treatments to investigate changes in gene expression using ATH1 arrays. Diagnostic gene sets were identified from published or in-house expression profiles of the response to light, sugar, nitrogen, and water deficit in seedlings and 4 h of darkness or illumination at ambient or compensation point [CO2]. Many sugar-responsive genes showed large diurnal expression changes, whose timing matched that of the diurnal changes of sugars. A set of circadian-regulated genes also showed large diurnal changes in expression. Comparison of published results from a free-running cycle with the diurnal changes in Columbia-0 (Col-0) and the starchless phosphoglucomutase (pgm) mutant indicated that sugars modify the expression of up to half of the clock-regulated genes. Principle component analysis identified genes that make large contributions to diurnal changes and confirmed that sugar and circadian regulation are the major inputs in Col-0 but that sugars dominate the response in pgm. Most of the changes in pgm are triggered by low sugar levels during the night rather than high levels in the light, highlighting the importance of responses to low sugar in diurnal gene regulation. We identified a set of candidate regulatory genes that show robust responses to alterations in sugar levels and change markedly during the diurnal cycle.
Versión del editor: http://dx.doi.org/10.1105/tpc.105.035261
URI : 10261/5102
DOI: 10.1105/tpc.105.035261
ISSN: 1532-298X
Aparece en las colecciones: (IRNASA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Sugars_2005.pdf1,28 MBAdobe PDFVista previa
Mostrar el registro completo

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.