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- Publications
- Influence
PIFs: pivotal components in a cellular signaling hub.
A small subset of basic helix-loop-helix transcription factors called PIFs (phytochrome-interacting factors) act to repress seed germination, promote seedling skotomorphogenesis and promote… Expand
The Arabidopsis Phytochrome-Interacting Factor PIF7, Together with PIF3 and PIF4, Regulates Responses to Prolonged Red Light by Modulating phyB Levels[W]
We show that a previously uncharacterized Arabidopsis thaliana basic helix-loop-helix (bHLH) phytochrome interacting factor (PIF), designated PIF7, interacts specifically with the far-red… Expand
Multiple Phytochrome-Interacting bHLH Transcription Factors Repress Premature Seedling Photomorphogenesis in Darkness
BACKGROUND
An important contributing factor to the success of terrestrial flowering plants in colonizing the land was the evolution of a developmental strategy, termed skotomorphogenesis, whereby… Expand
PIFs: Systems Integrators in Plant Development[W]
Phytochrome-interacting factors (PIFs) are members of the Arabidopsis thaliana basic helix-loop-helix family of transcriptional regulators that interact specifically with the active Pfr conformer of… Expand
Definition of Early Transcriptional Circuitry Involved in Light-Induced Reversal of PIF-Imposed Repression of Photomorphogenesis in Young Arabidopsis Seedlings[W]
- P. Leivar, J. Tepperman, E. Monte, Robert H Calderon, T. Liu, P. Quail
- Biology, Medicine
- The Plant Cell Online
- 1 November 2009
Light signals perceived by the phytochromes induce the transition from skotomorphogenic to photomorphogenic development (deetiolation) in dark-germinated seedlings. Evidence that a quadruple mutant… Expand
Dynamic Antagonism between Phytochromes and PIF Family Basic Helix-Loop-Helix Factors Induces Selective Reciprocal Responses to Light and Shade in a Rapidly Responsive Transcriptional Network in…
- P. Leivar, J. Tepperman, +4 authors P. Quail
- Biology, Medicine
- Plant Cell
- 1 April 2012
Genome-wide expression profiling identifies core elements of a transcriptional network that is regulated rapidly and reciprocally by light and vegetational shade signals, via a phytochrome… Expand
Phytochrome-imposed oscillations in PIF3 protein abundance regulate hypocotyl growth under diurnal light/dark conditions in Arabidopsis.
- J. Soy, P. Leivar, +4 authors E. Monte
- Biology, Medicine
- The Plant journal : for cell and molecular…
- 1 August 2012
Arabidopsis seedlings display rhythmic growth when grown under diurnal conditions, with maximal elongation rates occurring at the end of the night under short-day photoperiods. Current evidence… Expand
Phytochrome and retrograde signalling pathways converge to antagonistically regulate a light-induced transcriptional network
- G. Martín, P. Leivar, Dolores Ludevid, J. Tepperman, P. Quail, E. Monte
- Biology, Medicine
- Nature communications
- 6 May 2016
Plastid-to-nucleus retrograde signals emitted by dysfunctional chloroplasts impact photomorphogenic development, but the molecular link between retrograde- and photosensory-receptor signalling has… Expand
Multilevel Control of Arabidopsis 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase by Protein Phosphatase 2A[W]
- P. Leivar, Meritxell Antolín-Llovera, +5 authors N. Campos
- Biology, Medicine
- Plant Cell
- 1 April 2011
HMG-CoA reductase has a key role in the regulation of the mevalonate pathway for isoprenoid biosynthesis and is modulated by many diverse endogenous and environmental stimuli. In this work, protein… Expand
Out of the dark: how the PIFs are unmasking a dual temporal mechanism of phytochrome signalling.
- E. Monte, Bassem Al-Sady, P. Leivar, P. Quail
- Biology, Medicine
- Journal of experimental botany
- 1 September 2007
Following light-induced nuclear translocation, the phytochromes induce changes in gene expression to regulate plant development. PIF3 and other PIFs (phytochrome-interacting factors), members of the… Expand