ArticleJournal of experimental botany2020
CIRCADIAN CLOCK ASSOCIATED 1 and ATAF2 differentially suppress cytochrome P450-mediated brassinosteroid inactivation.
Article in Journal of experimental botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 50 citations in OpenAlex.
- Brassinosteroids promote sugar synthesis by inhibiting BIN2 phosphorylation of phosphoenolpyruvate carboxykinase.Nature plants · 2026Article
- The NAC transcription factor ATAF2 enhances Arabidopsis biomass and chlorophyll a accumulations at the early growth stage.BMC research notes · 2025Article
- Transcriptional activation and repression in the plant circadian clock: Revisiting core oscillator feedback loops and output pathways.Plant communications · 2025Review
- The Study ofJournal of fungi (Basel, Switzerland) · 2025Article
- Genetic resolution of multi-level plant height in common wheat using the 3D canopy model from ultra-low altitude unmanned aerial vehicle imagery.Plant phenomics (Washington, D.C.) · 2025Article
- Insights into the genetic architecture of the reciprocal interspecific hybrids derived fromMolecular breeding : new strategies in plant improvement · 2024Article
- Arabidopsis transcription factor ANAC102 predominantly expresses a nuclear protein and acts as a negative regulator of methyl viologen-induced oxidative stress responses.Journal of experimental botany · 2024Article
- NAC domain transcription factors VNI2 and ATAF2 form protein complexes and regulate leaf senescence.Plant direct · 2023Article
- Genome sequencing reveals evidence of adaptive variation in the genus Zea.Nature genetics · 2022Article
- Natural alleles of CIRCADIAN CLOCK ASSOCIATED1 contribute to rice cultivation by fine-tuning flowering time.Plant physiology · 2022Article
- The fine mapping of dwarf gene Rht5 in bread wheat and its effects on plant height and main agronomic traits.Planta · 2022Article
- Integrated analysis of mRNA-seq and miRNA-seq reveals the advantage of polyploid Solidago canadensis in sexual reproduction.BMC plant biology · 2021Article
- Identification of the PmWEEP locus controlling weeping traits in Prunus mume through an integrated genome-wide association study and quantitative trait locus mapping.Horticulture research · 2021Article
- Identification and Characterization of Plant-Interacting Targets of Tomato Spotted Wilt Virus Silencing Suppressor.Pathogens (Basel, Switzerland) · 2021Article
- Identification and Functional Analysis of Four RNA Silencing Suppressors inFrontiers in plant science · 2021Article
- Article
- Emerging Molecular Links Between Plant Photomorphogenesis and Virus Resistance.Frontiers in plant science · 2020Review
- Regulation of Brassinosteroid Homeostasis in Higher Plants.Frontiers in plant science · 2020Review
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Brassinosteroids (BRs) are a group of steroid hormones regulating plant growth and development. Since BRs do not undergo transport among plant tissues, their metabolism is tightly regulated by transcription factors (TFs) and feedback loops. BAS1 (CYP734A1, formerly CYP72B1) and SOB7 (CYP72C1) are two BR-inactivating cytochrome P450s identified in Arabidopsis thaliana. We previously found that a TF ATAF2 (ANAC081) suppresses BAS1 and SOB7 expression by binding to the Evening Element (EE) and CIRCADIAN CLOCK ASSOCIATED 1 (CCA1)-binding site (CBS) on their promoters. Both the EE and CBS are known binding targets of the circadian regulatory protein CCA1. Here, we confirm that CCA1 binds the EE and CBS motifs on BAS1 and SOB7 promoters, respectively. Elevated accumulations of BAS1 and SOB7 transcripts in the CCA1 null mutant cca1-1 indicate that CCA1 is a repressor of their expression. When compared with either cca1-1 or the ATAF2 null mutant ataf2-2, the cca1-1 ataf2-2 double mutant shows higher SOB7 transcript accumulations and a stronger BR-insensitive phenotype of hypocotyl elongation in white light. CCA1 interacts with ATAF2 at both DNA-protein and protein-protein levels. ATAF2, BAS1, and SOB7 are all circadian regulated with distinct expression patterns. These results demonstrate that CCA1 and ATAF2 differentially suppress BAS1- and SOB7-mediated BR inactivation.
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