ArticlePlant physiology2004
A rice WRKY gene encodes a transcriptional repressor of the gibberellin signaling pathway in aleurone cells.
Article in Plant physiology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 153 papers.
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153 citing papers in PubMed, 353 citations in OpenAlex.
- Genome-wide identification of WRKY gene family reveals its regulatory role in ABA/CBF-mediated cold adaptation in king grass (Pennisetum purpureum × P. americanum).BMC plant biology · 2026Article
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- Comparing hormone dynamics in cereal crops via transient expression of hormone sensors.Plant & cell physiology · 2025Article
- CRISPR/Cas9-based editing of NF-YC4 promoters yields high-protein rice and soybean.The New phytologist · 2025Article
- WRKY transcription factor MdWRKY71 regulates flowering time in apple.Plant molecular biology · 2025Article
- Gibberellin promotes theanine synthesis by relieving the inhibition of CsWRKY71 onHorticulture research · 2025Article
- WRKY transcription factors participate in abiotic stress responses mediated by sugar metabolism.Frontiers in plant science · 2025Review
- Integrating RNA-Seq and linkage mapping to identify and characterizeFrontiers in plant science · 2025Article
- Disruption of the OsWRKY71 transcription factor gene results in early rice seed germination under normal and cold stress conditions.BMC plant biology · 2024Article
- Analysis of the global transcriptome and miRNAome associated with seed dormancy during seed maturation in rice (Oryza sativa L. cv. Nipponbare).BMC plant biology · 2024Article
- Identification of Quantitative Trait Loci and Candidate Genes Controlling Seed Dormancy in Eggplant (Genes · 2024Article
- Tobacco Transcription Factor NtWRKY70b Facilitates Leaf Senescence via Inducing ROS Accumulation and Impairing Hydrogen Sulfide Biosynthesis.International journal of molecular sciences · 2024Article
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- Functional characterization ofPhysiology and molecular biology of plants : an international journal of functional plant biology · 2024Article
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- Characterization of TwoPlants (Basel, Switzerland) · 2023Article
- Whole-genome Duplication Reshaped Adaptive Evolution in A Relict Plant Species, Cyclocarya paliurus.Genomics, proteomics & bioinformatics · 2023Article
- Biocuration of a Transcription Factors Network Involved in Submergence Tolerance during Seed Germination and Coleoptile Elongation in Rice (Plants (Basel, Switzerland) · 2023Article
- Physiological and transcriptomic analysis of OsLHCB3 knockdown lines in rice.Molecular breeding : new strategies in plant improvement · 2023Article
93 more citing papers are in PubMed but not listed here.
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The molecular mechanism by which GA regulates plant growth and development has been a subject of active research. Analyses of the rice (Oryza sativa) genomic sequences identified 77 WRKY genes, among which OsWRKY71 is highly expressed in aleurone cells. Transient expression of OsWRKY71 by particle bombardment specifically represses GA-induced Amy32b alpha-amylase promoter but not abscisic acid-induced HVA22 or HVA1 promoter activity in aleurone cells. Moreover, OsWRKY71 blocks the activation of the Amy32b promoter by the GA-inducible transcriptional activator OsGAMYB. Consistent with its role as a transcriptional repressor, OsWRKY71 is localized to nuclei of aleurone cells and binds specifically to functionally defined TGAC-containing W boxes of the Amy32b promoter in vitro. Mutation of the two W boxes prevents the binding of OsWRKY71 to the mutated promoter, and releases the suppression of the OsGAMYB-activated Amy32b expression by OsWRKY71, suggesting that OsWRKY71 blocks GA signaling by functionally interfering with OsGAMYB. Exogenous GA treatment decreases the steady-state mRNA level of OsWRKY71 and destabilizes the GFP:OsWRKY71 fusion protein. These findings suggest that OsWRKY71 encodes a transcriptional repressor of GA signaling in aleurone cells.
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