ArticlePlant molecular biology2009
A negative regulator encoded by a rice WRKY gene represses both abscisic acid and gibberellins signaling in aleurone cells.
Article in Plant molecular biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.
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38 citing papers in PubMed, 1 synthesis or guideline pooled it, 68 citations in OpenAlex.
- A Meta-Analysis of Comparative Transcriptomic Data Reveals a Set of Key Genes Involved in the Tolerance to Abiotic Stresses in Rice.International journal of molecular sciences · 2019Pooled it
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- Biocuration of a Transcription Factors Network Involved in Submergence Tolerance during Seed Germination and Coleoptile Elongation in Rice (Plants (Basel, Switzerland) · 2023Article
- Characterization of ZmPMP3g function in drought tolerance of maize.Scientific reports · 2023Article
- Transcriptome Analysis Revealed the Dynamic and Rapid Transcriptional Reprogramming Involved in Cold Stress and Related Core Genes in the Rice Seedling Stage.International journal of molecular sciences · 2023Article
- Comprehensive analysis of the WRKY gene family inFrontiers in plant science · 2023Article
- Comprehensive Genome-Wide Analysis and Expression Pattern Profiling of theInternational journal of molecular sciences · 2022Article
- Rice CIRCADIAN CLOCK ASSOCIATED 1 transcriptionally regulates ABA signaling to confer multiple abiotic stress tolerance.Plant physiology · 2022Article
- Genome-wide analysis and transcriptional reprogrammings of MYB superfamily revealed positive insights into abiotic stress responses and anthocyanin accumulation in Carthamus tinctorius L.Molecular genetics and genomics : MGG · 2022Article
- Cytological observation and transcriptome analysis reveal dynamic changes ofFrontiers in plant science · 2022Article
- Alterations in the Transcriptome of Rye Plants following thePlants (Basel, Switzerland) · 2021Article
- Dynamic differential evolution schemes of WRKY transcription factors in domesticated and wild rice.Scientific reports · 2021Article
- WRKY transcription factors and plant defense responses: latest discoveries and future prospects.Plant cell reports · 2021Review
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- Transcriptome Analysis of Early Defenses in Rice against Fusarium fujikuroi.Rice (New York, N.Y.) · 2020Article
- Two light responsive3 Biotech · 2020Article
- Involvement of CsWRKY70 in salicylic acid-induced citrus fruit resistance againstHorticulture research · 2020Article
- GOLDEN2-LIKE Transcription Factors RegulatePlant physiology · 2019Article
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Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Abscisic acid (ABA) and gibberellins (GAs) control several developmental processes including seed maturation, dormancy, and germination. The antagonism of these two hormones is well-documented. However, recent data from transcription profiling studies indicate that they can function as agonists in regulating the expression of many genes although the underlying mechanism is unclear. Here we report a rice WRKY gene, OsWRKY24, which encodes a protein that functions as a negative regulator of both GA and ABA signaling. Overexpression of OsWRKY24 via particle bombardment-mediated transient expression in aleurone cells represses the expression of two reporter constructs: the beta-glucuronidase gene driven by the GA-inducible Amy32b alpha-amylase promoter (Amy32b-GUS) and the ABA-inducible HVA22 promoter (HVA22-GUS). OsWRKY24 is unlikely a general repressor because it has little effect on the expression of the luciferase reporter gene driven by a constitutive ubiquitin promoter (UBI-Luciferase). As to the GA signaling, OsWRKY24 differs from OsWRKY51 and -71, two negative regulators specifically function in the GA signaling pathway, in several ways. First, OsWRKY24 contains two WRKY domains while OsWRKY51 and -71 have only one; both WRKY domains are essential for the full repressing activity of OsWRKY24. Second, binding of OsWRKY24 to the Amy32b promoter appears to involve sequences in addition to the TGAC cores of the W-boxes. Third, unlike OsWRKY71, OsWRKY24 is stable upon GA treatment. Together, these data demonstrate that OsWRKY24 is a novel type of transcriptional repressor that inhibits both GA and ABA signaling.
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