ArticleJournal of experimental botany2020
Arabidopsis exoribonuclease USB1 interacts with the PPR-domain protein SOAR1 to negatively regulate abscisic acid signaling.
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 10 papers.
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10 citing papers in PubMed, 20 citations in OpenAlex.
- Newly found functions and regulatory networks of WOX family: what else does the WOX say?Planta · 2026Review
- Bioinformatics Analysis Reveals PPR Genes Modulation by Ahyp-miR0005 Under Abiotic Stress Across Diverse Plant Species.Plants (Basel, Switzerland) · 2025Article
- Protein networks: integrating pathways for plant heat stress adaptation.Functional & integrative genomics · 2025Review
- Talaromyces marneffei suppresses macrophage inflammation by regulating host alternative splicing.Communications biology · 2023Article
- A Genome-Wide Analysis of the Pentatricopeptide Repeat Protein Gene Family in Two Kiwifruit Species with an Emphasis on the Role of RNA Editing in Pathogen Stress.International journal of molecular sciences · 2023Article
- Identification of novel candidate loci and genes for seed vigor-related traits in upland cotton (Frontiers in plant science · 2023Article
- The PPR-Domain Protein SOAR1 Regulates Salt Tolerance in Rice.Rice (New York, N.Y.) · 2022Article
- Plant hormone regulation of abiotic stress responses.Nature reviews. Molecular cell biology · 2022Review
- Exogenous melatonin increases salt tolerance in bitter melon by regulating ionic balance, antioxidant system and secondary metabolism-related genes.BMC plant biology · 2022Article
- The key clock component ZEITLUPE (ZTL) negatively regulates ABA signaling by degradation of CHLH in Arabidopsis.Frontiers in plant science · 2022Article
Corrections and comments
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Signaling by the phytohormone abscisic acid (ABA) involves pre-mRNA splicing, a key process of post-transcriptional regulation of gene expression. However, the regulatory mechanism of alternative pre-mRNA splicing in ABA signaling remains largely unknown. We previously identified a pentatricopeptide repeat protein SOAR1 (suppressor of the ABAR-overexpressor 1) as a crucial player downstream of ABAR (putative ABA receptor) in ABA signaling. In this study, we identified a SOAR1 interaction partner USB1, which is an exoribonuclease catalyzing U6 production for spliceosome assembly. We reveal that together USB1 and SOAR1 negatively regulate ABA signaling in early seedling development. USB1 and SOAR1 are both required for the splicing of transcripts of numerous genes, including those involved in ABA signaling pathways, suggesting that USB1 and SOAR1 collaborate to regulate ABA signaling by affecting spliceosome assembly. These findings provide important new insights into the mechanistic control of alternative pre-mRNA splicing in the regulation of ABA-mediated plant responses to environmental cues.
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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.