ArticleThe Plant cell2015
Arabidopsis RZFP34/CHYR1, a Ubiquitin E3 Ligase, Regulates Stomatal Movement and Drought Tolerance via SnRK2.6-Mediated Phosphorylation.
Article in The Plant cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.
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Who cites it
85 citing papers in PubMed, 184 citations in OpenAlex.
- Genome-wide identification of CHY zinc finger and RING finger (CHYR) genes in pepper and functional characterization of CaCHYR5 in response to Phytophthora capsici infection.Journal of applied genetics · 2026Article
- AspAT orchestrates metabolic and transcriptional networks for drought adaptation in poplar.Journal of plant research · 2026Article
- Functional Analysis ofPlants (Basel, Switzerland) · 2026Article
- Gene network analysis predicts the primary regulators of ABA-dependent transcriptional activation and repression in Populus roots.PLoS genetics · 2026Article
- A natural allele of TaSCE1-A1 confers drought resistance in wheat.Nature plants · 2026Article
- The TaSDIR1-4A-TaASR4-3D module regulates ABA-related drought responses in wheat seedlings.The New phytologist · 2026Article
- Article
- Systematic analysis of the ShRZFP gene family and its association with tiller regulation in sugarcane.BMC plant biology · 2026Article
- Article
- Comprehensive analysis of the sucrose nonfermenting 1-related protein kinase 2 gene family in broomcorn millet (Panicum miliaceum L.) under abiotic stress conditions.BMC genomics · 2025Article
- Arabidopsis Ubiquitin E3 Ligase AtCHYR1 Promotes ROS Production in Plant Responses to Sugar Availability.Plants (Basel, Switzerland) · 2025Article
- Deciphering the regulatory network of carbon isotope discrimination in bread wheat through genome-wide association studies and genomic prediction.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- B4 Raf-like MAPKKK RAF24 regulates Arabidopsis thaliana flowering time through HISTONE MONO-UBIQUITINATION 2.The New phytologist · 2025Article
- Overview of RING gene family in maize (Zea mays L.): ZmRING-93 enhances drought tolerance in transgenic Arabidopsis.BMC plant biology · 2025Article
- The transcription factor MYB30 promotes iron homeostasis by maintaining the stability of the FIT transcription factor.The Plant cell · 2025Article
- SnRK2s: Kinases or Substrates?Plants (Basel, Switzerland) · 2025Review
- Review
- Genome-wide analysis of CHYR gene family and BnA03.CHYR.1 functional verification under salt stress in Brassica napus L.BMC plant biology · 2025Article
- Towards Stewardship of Wild Species and Their Domesticated Counterparts: A Case Study in Northern Wild Rice (Ecology and evolution · 2025Article
- Regulation of Stomatal Responses to Pathogen and Drought Stress by the F-Box Protein AtSKIP5.Molecular plant pathology · 2025Article
25 more citing papers are in PubMed but not listed here.
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Abscisic acid (ABA) is a phytohormone that plays a fundamental role in plant development and stress response, especially in the regulation of stomatal closure in response to water deficit stress. The signal transduction that occurs in response to ABA and drought stress is mediated by protein phosphorylation and ubiquitination. This research identified Arabidopsis thaliana RING ZINC-FINGER PROTEIN34 (RZP34; renamed here as CHY ZINC-FINGER AND RING PROTEIN1 [CHYR1]) as an ubiquitin E3 ligase. CHYR1 expression was significantly induced by ABA and drought, and along with its corresponding protein, was expressed mainly in vascular tissues and stomata. Analysis of CHYR1 gain-of-function and loss-of-function plants revealed that CHYR1 promotes ABA-induced stomatal closure, reactive oxygen species production, and plant drought tolerance. Furthermore, CHYR1 interacted with SNF1-RELATED PROTEIN KINASE2 (SnRK2) kinases and could be phosphorylated by SnRK2.6 on the Thr-178 residue. Overexpression of CHYR1(T178A), a phosphorylation-deficient mutant, interfered with the proper function of CHYR1, whereas CHYR1(T178D) phenocopied the gain of function of CHYR1. Thus, this study identified a RING-type ubiquitin E3 ligase that functions positively in ABA and drought responses and detailed how its ubiquitin E3 ligase activity is regulated by SnRK2.6-mediated protein phosphorylation.
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