ArticleThe New phytologist2021
COP1 promotes ABA-induced stomatal closure by modulating the abundance of ABI/HAB and AHG3 phosphatases.
Article in The New phytologist, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
31 citing papers in PubMed, 1 synthesis or guideline pooled it, 60 citations in OpenAlex.
- Dry side of the core: a meta-analysis addressing the original nature of the ABA signalosome at the onset of seed imbibition.Frontiers in plant science · 2023Pooled it
- COP1 regulates the abundance and stability of the Arabidopsis retromer protein AtVPS29 via the proteasome pathway.Plant signaling & behavior · 2026Article
- Intermolecular-Interaction-Driven Adaptive Remodeling: A Network Perspective on Plant Abiotic Stress Responses.Plants (Basel, Switzerland) · 2026Review
- SnRK2.6-mediated phosphorylation stabilizes proteasome regulator 1 (PTRE1) to enhance 26S proteasome activity and coordinate ABA signaling in Arabidopsis.Plant communications · 2026Article
- Natural variation links seedling hypocotyl growth with water loss in Arabidopsis.The Plant journal : for cell and molecular biology · 2026Article
- Identification of PP2C gene family and its role in stress and adversity based on T2T flax (Linum usitatissimum L.) genome.BMC plant biology · 2025Article
- SAL1-PAP retrograde signaling orchestrates photosynthetic and extracellular reactive oxygen species for stress responses.The Plant journal : for cell and molecular biology · 2025Article
- The microRNA408-plantacyanin module balances plant growth and drought resistance by regulating reactive oxygen species homeostasis in guard cells.The Plant cell · 2024Article
- The lowdown on breakdown: Open questions in plant proteolysis.The Plant cell · 2024Review
- Research Progress in the Regulation of the ABA Signaling Pathway by E3 Ubiquitin Ligases in Plants.International journal of molecular sciences · 2024Review
- Arabidopsis COP1 guides stomatal response in guard cells through pH regulation.Communications biology · 2024Article
- Reconstitution of phytochrome A-mediated light modulation of the ABA signaling pathways in yeast.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- AaSEPALLATA1 integrates jasmonate and light-regulated glandular secretory trichome initiation in Artemisia annua.Plant physiology · 2023Article
- Wheat ABA Receptor TaPYL5 Constitutes a Signaling Module with Its Downstream Partners TaPP2C53/TaSnRK2.1/TaABI1 to Modulate Plant Drought Response.International journal of molecular sciences · 2023Article
- Article
- Article
- COP1 Mediates Dark-Induced Stomatal Closure by SuppressingInternational journal of molecular sciences · 2022Article
- Transcriptional networks regulating suberin and lignin in endodermis link development and ABA response.Plant physiology · 2022Article
- PIFs- and COP1-HY5-mediated temperature signaling in higher plants.Stress biology · 2022Review
- OsPP65 Negatively Regulates Osmotic and Salt Stress Responses Through Regulating Phytohormone and Raffinose Family Oligosaccharide Metabolic Pathways in Rice.Rice (New York, N.Y.) · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plant stomata play a crucial role in leaf function, controlling water transpiration in response to environmental stresses and modulating the gas exchange necessary for photosynthesis. The phytohormone abscisic acid (ABA) promotes stomatal closure and inhibits light-induced stomatal opening. The Arabidopsis thaliana E3 ubiquitin ligase COP1 functions in ABA-mediated stomatal closure. However, the underlying molecular mechanisms are still not fully understood. Yeast two-hybrid assays were used to identify ABA signaling components that interact with COP1, and biochemical, molecular and genetic studies were carried out to elucidate the regulatory role of COP1 in ABA signaling. The cop1 mutants are hyposensitive to ABA-triggered stomatal closure under light and dark conditions. COP1 interacts with and ubiquitinates the Arabidopsis clade A type 2C phosphatases (PP2Cs) ABI/HAB group and AHG3, thus triggering their degradation. Abscisic acid enhances the COP1-mediated degradation of these PP2Cs. Mutations in ABI1 and AHG3 partly rescue the cop1 stomatal phenotype and the phosphorylation level of OST1, a crucial SnRK2-type kinase in ABA signaling. Our data indicate that COP1 is part of a novel signaling pathway promoting ABA-mediated stomatal closure by regulating the stability of a subset of the Clade A PP2Cs. These findings provide novel insights into the interplay between ABA and the light signaling component in the modulation of stomatal movement.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.