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Rapid decline in nuclear costitutive Photomorphogenesis1 abundance anticipates the stabilization of its target elongated Hypocotyl5 in the light
(American Society Of Plant Biologist, 2014-01)
In darkness, the E3 ligase COSTITUTIVE PHOTOMORPHOGENESIS1 (COP1) targets to degradation ELONGATED HYPOCOTYL5 (HY5) and other proteins required for photomorphogenesis (Osterlund et al., 2000a; Saijo et al., 2003; Seo et ...
Convergence of constitutive photomorphogenesis 1 and phytochrome interacting factor signalling during shade avoidance
(Wiley, 2016-04)
Shade-avoidance responses require CONSTITUTIVE PHOTOMORPHOGENESIS 1 (COP1) but the mechanisms of action of COP1 under shade have not been elucidated. Using simulated shade and control conditions, we analysed: the transcriptome ...
The Arabidopsis B-BOX Protein BBX25 Interacts with HY5, Negatively Regulating BBX22 Expression to Suppress Seedling Photomorphogenesis
(American Society of Plant Biologist, 2013-05)
ELONGATED HYPOCOTYL5 (HY5) is a basic domain/leucine zipper (bZIP) transcription factor, central for the regulation of seedling photomorphogenesis. Here, we identified a B-BOX (BBX)–containing protein, BBX25/SALT TOLERANCE ...
The Arabidopsis B-BOX protein BBX25 interacts with HY5, negatively regulating BBX22 expression to suppress seedling photomorphogenesis
(American Society of Plant Biologist, 2013-04)
ELONGATED HYPOCOTYL5 (HY5) is a basic domain/leucine zipper (bZIP) transcription factor, central for the regulation of seedling photomorphogenesis. Here, we identified a B-BOX (BBX)-containing protein, BBX25/SALT TOLERANCE ...
COP1 re-accumulates in the nucleus under shade
(Wiley, 2013-08)
Shade-avoider plants typically respond to shade-light signals by increasing the rate of stem growth. CONSTITTUTIVE PHOTOMORPHOGENESIS 1 (COP1) is an E3 ligase involved in the ubiquitin labelling of proteins targeted for ...
Hormonal modulation of photomorphogenesis-controlled anthocyanin accumulation in tomato (Solanum lycopersicum L. cv Micro-Tom) hypocotyls: Physiological and genetic studies
(ELSEVIER IRELAND LTD, 2010)
Hormones are likely to be important factors modulating the light-dependent anthocyanin accumulation. Here we analyzed anthocyanin contents in hypocotyls of near isogenic Micro-Tom (MT) tomato lines carrying hormone and ...
Light perception and signalling by phytochrome A
(Oxford University Press, 2014-06)
In etiolated seedlings, phytochrome A (phyA) mediates very-low-fluence responses (VLFRs), which initiate de-etiolation at the interphase between the soil and above-ground environments, and high-irradiance responses (HIR), ...
Photoreceptor Signaling Networks in Plant Responses to Shade
(Annual Reviews, 2013-04)
The dynamic light environment of vegetation canopies is perceived by phytochromes, cryptochromes, phototropins, and UV RESISTANCE LOCUS 8 (UVR8). These receptors control avoidance responses to preclude exposure to limiting ...
Functional analysis of the UVR8 photoreceptor from the monocotyledonous Zea mays
(Springer, 2020-06-25)
Low UV-B fluence is a signaling stimulus that regulates various physiological processes and induces photomorphogenic responses in plants. The specific UV-B receptor UVR8 is a key component in these processes. Although UVR8 ...
Estudio del efecto de la luz sobre la acumulación de carotenoides en la raíz de reserva de Daucus carota
(Universidad de Chile., 2019-06)
Los carotenoides son pigmentos que en plantas participan en la fotosíntesis, protección
del daño foto-oxidativo y síntesis de fitohormonas. En mamíferos, su consumo es
esencial, ya que son precursores de la vitamina A. ...