Artículo
Molecular convergence of clock and photosensory pathways through PIF3–TOC1 interaction and co-occupancy of target promoters
Soy, Judit; Leivar, Pablo; Gonzalez Schain, Nahuel Damian
; Martín, Guiomar; Diaz, Céline; Sentandreu, Maria; Al-Sady, Bassem; Quail, Peter H.; Monte, Elena
![Icon](/themes/CONICETDigital/images/conicet.png)
Fecha de publicación:
04/2016
Editorial:
National Academy of Sciences
Revista:
Proceedings of the National Academy of Sciences of The United States of America
ISSN:
0027-8424
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This study defines a molecular mechanism for how clock- and light-signaling pathways converge in Arabidopsis. The data reveal that TOC1, an essential core component of the central oscillator, binds to and represses PIF transcriptional activators, which are also the direct molecular signaling partners of the phytochrome photosensory receptors. This finding shows that TOC1 functions as a clock output-transducer, directly linking the core oscillator to a pleiotopically-acting transcriptional network, through repression of target genes. Collectively, in the plant, these components comprise a transcriptionallycentered signaling hub that provides clock-imposed gating of PIF-mediated, photosensory-regulated diurnal growth patterns. These results provide a framework for future research aimed at understanding how circadian dynamics are integrated with other plant physiological processes important for optimal plant fitness.
Palabras clave:
PIFs
,
growth
,
circadian clock
,
photoperiod
,
TOC1
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Articulos(IBR)
Articulos de INST.DE BIOLOGIA MOLECULAR Y CELULAR DE ROSARIO
Articulos de INST.DE BIOLOGIA MOLECULAR Y CELULAR DE ROSARIO
Citación
Soy, Judit; Leivar, Pablo; Gonzalez Schain, Nahuel Damian; Martín, Guiomar; Diaz, Céline; et al.; Molecular convergence of clock and photosensory pathways through PIF3–TOC1 interaction and co-occupancy of target promoters; National Academy of Sciences; Proceedings of the National Academy of Sciences of The United States of America; 113; 17; 4-2016; 4870-4875
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