ArticlePlant physiology2023
A regulatory loop establishes the link between the circadian clock and abscisic acid signaling in rice.
Article in Plant physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 21 citations in OpenAlex.
- The Long Intergenic Noncoding RNAPlants (Basel, Switzerland) · 2026Article
- Differential Responses inPlants (Basel, Switzerland) · 2026Article
- Holistic overview of regulatory networks governing seed dormancy and germination in plants.Science China. Life sciences · 2026Review
- OsDi19-1 Acts Downstream of OsABI5 to Negatively Regulate ABA-Inhibited Seed Germination and Seedling Growth in Rice.Rice (New York, N.Y.) · 2026Article
- Gene editing and association analysis of circadian clock gene TaPRR59 highlights its importance in yield-related traits in wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- OsSAE1 orchestrates the antagonistical regulation of gibberellin and abscisic acid signaling to control rice seed germination.Journal of integrative plant biology · 2026Article
- A multi-layered regulatory model uncovers the central role of OsPRR37 in coordinating multiple agronomic traits.BMC plant biology · 2025Article
- Photoperiod and Circadian Regulation in Plants: A Review of Insights from In Vitro Studies.Biology · 2025Review
- OsPRMT6b balances plant growth and high temperature stress by feedback inhibition of abscisic acid signaling.Nature communications · 2025Article
- Identification of Candidate Genes for Hypoxia Tolerance in Rice by Genome-Wide Association Analysis and Transcriptome Sequencing.Rice (New York, N.Y.) · 2025Article
- Genetic and Physiological Insights into Salt Resistance in Rice through Analysis of Germination, Seedling Traits, and QTL Identification.Life (Basel, Switzerland) · 2024Article
- Unlocking allelic variation in circadian clock genes to develop environmentally robust and productive crops.Planta · 2024Review
- When to germinate: the talk between abscisic acid and circadian clock.Plant physiology · 2023Article
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Authors and funding
20 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
There is a close regulatory relationship between the circadian clock and the abscisic acid (ABA) signaling pathway in regulating many developmental processes and stress responses. However, the exact feedback regulation mechanism between them is still poorly understood. Here, we identified the rice (Oryza sativa) clock component PSEUDO-RESPONSE REGULATOR 95 (OsPRR95) as a transcriptional regulator that accelerates seed germination and seedling growth by inhibiting ABA signaling. We also found that OsPRR95 binds to the ABA receptor gene REGULATORY COMPONENTS OF ABA RECEPTORS10 (OsRCAR10) DNA and inhibits its expression. Genetic analysis showed OsRCAR10 acts downstream of OsPRR95 in mediating ABA responses. In addition, the induction of OsPRR95 by ABA partly required a functional OsRCAR10, and the ABA-responsive element-binding factor ABSCISIC ACID INSENSITIVE5 (OsABI5) bound directly to the promoter of OsPRR95 and activated its expression, thus establishing a regulatory feedback loop between OsPRR95, OsRCAR10, and OsABI5. Taken together, our results demonstrated that the OsRCAR10-OsABI5-OsPRR95 feedback loop modulates ABA signaling to fine-tune seed germination and seedling growth, thus establishing the molecular link between ABA signaling and the circadian clock.
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