ArticlePlant physiology2013
Conditional involvement of constitutive photomorphogenic1 in the degradation of phytochrome A.
Article in Plant physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 37 citations in OpenAlex.
- The lowdown on breakdown: Open questions in plant proteolysis.The Plant cell · 2024Review
- Oligosaccharide production and signaling correlate with delayed flowering in an Arabidopsis genotype grown and selected in high [CO2].PloS one · 2023Article
- TIME FOR COFFEE regulates phytochrome A-mediated hypocotyl growth through dawn-phased signaling.The Plant cell · 2022Article
- Transcriptome, metabolome and suppressor analysis reveal an essential role for the ubiquitin-proteasome system in seedling chloroplast development.BMC plant biology · 2022Article
- Illuminating the COP1/SPA Ubiquitin Ligase: Fresh Insights Into Its Structure and Functions During Plant Photomorphogenesis.Frontiers in plant science · 2021Review
- The Photomorphogenic Central Repressor COP1: Conservation and Functional Diversification during Evolution.Plant communications · 2020Review
- Coordinated Shoot and Root Responses to Light Signaling inPlant communications · 2020Review
- Molecular mechanisms underlying phytochrome-controlled morphogenesis in plants.Nature communications · 2019Review
- Orthogonal regulation of phytochrome B abundance by stress-specific plastidial retrograde signaling metabolite.Nature communications · 2019Article
- Phytochrome, Carbon Sensing, Metabolism, and Plant Growth Plasticity.Plant physiology · 2018Review
- Characterization of peanut phytochromes and their possible regulating roles in early peanut pod development.PloS one · 2018Article
- Phosphorylation and negative regulation of CONSTITUTIVELY PHOTOMORPHOGENIC 1 by PINOIDProceedings of the National Academy of Sciences of the United States of America · 2017Article
- Review
- Photoreceptor effects on plant biomass, resource allocation, and metabolic state.Proceedings of the National Academy of Sciences of the United States of America · 2016Article
- Lysine 206 in Arabidopsis phytochrome A is the major site for ubiquitin-dependent protein degradation.Journal of biochemistry · 2016Article
- Photoreceptor Specificity in the Light-Induced and COP1-Mediated Rapid Degradation of the Repressor of Photomorphogenesis SPA2 in Arabidopsis.PLoS genetics · 2015Article
- Molecular mechanisms for mediating light-dependent nucleo/cytoplasmic partitioning of phytochrome photoreceptors.The New phytologist · 2015Review
- Light-activated phytochrome A and B interact with members of the SPA family to promote photomorphogenesis in Arabidopsis by reorganizing the COP1/SPA complex.The Plant cell · 2015Article
- The RING-Finger E3 Ubiquitin Ligase COP1 SUPPRESSOR1 Negatively Regulates COP1 Abundance in Maintaining COP1 Homeostasis in Dark-Grown Arabidopsis Seedlings.The Plant cell · 2014Article
- Both PHYTOCHROME RAPIDLY REGULATED1 (PAR1) and PAR2 promote seedling photomorphogenesis in multiple light signaling pathways.Plant physiology · 2014Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
All higher plants possess multiple phytochrome photoreceptors, with phytochrome A (phyA) being light labile and other members of the family being relatively light stable (phyB-phyE in Arabidopsis [Arabidopsis thaliana]). phyA also differs from other members of the family because it enables plants to deetiolate in far-red light-rich environments typical of dense vegetational cover. Later in development, phyA counteracts the shade avoidance syndrome. Light-induced degradation of phyA favors the establishment of a robust shade avoidance syndrome and was proposed to be important for phyA-mediated deetiolation in far-red light. phyA is ubiquitylated and targeted for proteasome-mediated degradation in response to light. Cullin1 and the ubiquitin E3 ligase constitutive photomorphogenic1 (COP1) have been implicated in this process. Here, we systematically analyze the requirement of cullins in this process and show that only CULLIN1 plays an important role in light-induced phyA degradation. In addition, the role of COP1 in this process is conditional and depends on the presence of metabolizable sugar in the growth medium. COP1 acts with SUppressor of phytochrome A (SPA) proteins. Unexpectedly, the light-induced decline of phyA levels is reduced in spa mutants irrespective of the growth medium, suggesting a COP1-independent role for SPA proteins.
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