ArticleNature communications2024
Nuclear accumulation of rice UV-B photoreceptors is UV-B- and OsCOP1-independent for UV-B responses.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Phosphorylation of the plant photoreceptor UVR8 regulates its dimer/monomer status and enhances UV-B signaling across species.The Plant cell · 2026Article
- UVR8-mediated UV-B signaling and its regulation of horticultural traits: from Arabidopsis to application.Horticulture research · 2026Review
- The OsUVR8-OsNAC3-OsERF117 signaling module mediates metabolic acclimation and climate adaptation in rice.Science advances · 2026Article
- Allelic variation in UVR8 modulates thermotolerance-yield tradeoffs in plants.Cell research · 2026Article
- Conservation and divergence of UVR8 photoreceptor-mediated UV-B signaling in Marchantia polymorpha.Plant physiology · 2026Article
- Advances in CRISPR Plant Applications.International journal of molecular sciences · 2026Review
- Recent advances of CRISPR-based genome editing for enhancing staple crops.Frontiers in plant science · 2024Review
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Authors and funding
12 authors.
Funding
Abstract
In plants, the conserved plant-specific photoreceptor UV RESISTANCE LOCUS 8 (UVR8) perceives ultraviolet-B (UV-B) light and mediates UV-B-induced photomorphogenesis and stress acclimation. In this study, we reveal that UV-B light treatment shortens seedlings, increases stem thickness, and enhances UV-B stress tolerance in rice (Oryza sativa) via its two UV-B photoreceptors OsUVR8a and OsUVR8b. Although the rice and Arabidopsis (Arabidopsis thaliana) UVR8 (AtUVR8) photoreceptors all form monomers in response to UV-B light, OsUVR8a, and OsUVR8b function is only partially conserved with respect to AtUVR8 in UV-B-induced photomorphogenesis and stress acclimation. UV-B light and CONSTITUTIVELY PHOTOMORPHOGENIC 1 (COP1) promote the nuclear accumulation of AtUVR8; by contrast, OsUVR8a and OsUVR8b constitutively localize to the nucleus via their own nuclear localization signals, independently of UV-B light and the RING-finger mutation of OsCOP1. We show that OsCOP1 negatively regulates UV-B responses, and shows weak interaction with OsUVR8s, which is ascribed to the N terminus of OsCOP1, which is conserved in several monocots. Furthermore, transcriptome analysis demonstrates that UV-B-responsive gene expression differs globally between Arabidopsis and rice, illuminating the evolutionary divergence of UV-B light signaling pathways between monocot and dicot plants.
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