ArticleThe Plant cell2012
Phosphorylation of FAR-RED ELONGATED HYPOCOTYL1 is a key mechanism defining signaling dynamics of phytochrome A under red and far-red light in Arabidopsis.
Article in The Plant cell, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- Extremely low light promotes adventitious shoot regeneration via RpPHYA/RpHYH-antagonized auxin biosynthesis and transport through dual regulation ofHorticulture research · 2026Article
- Phenomics-assisted genetic dissection and molecular design of drought resistance in rice.Plant communications · 2025Article
- Responses of transcriptome and metabolome in peanut leaves to dibutyl phthalate during whole growth period.Frontiers in plant science · 2024Article
- Phytochrome phosphorylation in plant light signaling.Frontiers in plant science · 2024Review
- Regulation of Plant Photoresponses by Protein Kinase Activity of Phytochrome A.International journal of molecular sciences · 2023Review
- Integrating linkage mapping and comparative transcriptome analysis for discovering candidate genes associated with salt tolerance in rice.Frontiers in plant science · 2023Article
- Mutual upregulation of HY5 and TZP in mediating phytochrome A signaling.The Plant cell · 2022Article
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- Regulation ofFrontiers in plant science · 2020Article
- Plant Phytochromes and their Phosphorylation.International journal of molecular sciences · 2019Review
- Hinge region ofProceedings of the National Academy of Sciences of the United States of America · 2018Article
- Molecular mechanisms for mediating light-dependent nucleo/cytoplasmic partitioning of phytochrome photoreceptors.The New phytologist · 2015Review
- Photoreceptor partner FHY1 has an independent role in gene modulation and plant development under far-red light.Proceedings of the National Academy of Sciences of the United States of America · 2014Article
- Arabidopsis Phytochrome A Directly Targets Numerous Promoters for Individualized Modulation of Genes in a Wide Range of Pathways.The Plant cell · 2014Article
- PIFs: systems integrators in plant development.The Plant cell · 2014Review
- UV-B-induced photomorphogenesis in Arabidopsis.Protein & cell · 2013Review
- Phosphorylation of phytochrome B inhibits light-induced signaling via accelerated dark reversion in Arabidopsis.The Plant cell · 2013Article
- Two GRAS proteins, SCARECROW-LIKE21 and PHYTOCHROME A SIGNAL TRANSDUCTION1, function cooperatively in phytochrome A signal transduction.Plant physiology · 2013Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
Emerging plants have to adapt to a high ratio of far-red light (FR)/red light (R) light in the canopy before they reach the R-enriched direct sunlight. Phytochrome A (phyA) is the single dominant photoreceptor in young Arabidopsis thaliana seedlings that initiates photomorphogenesis in response to a FR-enriched environment and transduces increasing R signals to early responsive genes. To date, how phyA differentially transmits FR and R signals to downstream genes remains obscure. Here, we present a phyA pathway in which FAR-RED ELONGATED HYPOCOTYL1 (FHY1), an essential partner of phyA, directly guides phyA to target gene promoters and coactivates transcription. Furthermore, we identified two phosphorylation sites on FHY1, Ser-39 and Thr-61, whose phosphorylation by phyA under R inhibits phyA signaling at each step of its pathway. Deregulation of FHY1 phosphorylation renders seedlings colorblind to FR and R. Finally, we show that the weaker phyA response resulting from FHY1 phosphorylation ensures the seedling deetiolation process in response to a R-enriched light condition. Collectively, our results reveal FHY1 phosphorylation as a key mechanism for FR/R spectrum-specific responses in plants and an essential event for plant adaption to changing light conditions in nature.
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