ArticleRice (New York, N.Y.)2021
An Adenylate Kinase OsAK3 Involves Brassinosteroid Signaling and Grain Length in Rice (Oryza sativa L.).
Article in Rice (New York, N.Y.), 2021. 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, 19 citations in OpenAlex.
- Peroxisomal acyl-CoA oxidase OsACX4 negatively regulates salt and drought stress tolerance by modulating cellular redox homeostasis in rice.Plant cell reports · 2026Article
- QTL identification for yield components using single segment substitution lines dissected by rice CSSL-Z799.Frontiers in plant science · 2026Article
- Discovery of Hub Genes Involved in Seed Development and Lipid Biosynthesis in Sea Buckthorn (Plants (Basel, Switzerland) · 2025Article
- Explorations of a novel effector CcAA9-20333 from Colletotrichum coccodes: the potential roles played in host immunity.Plant cell reports · 2025Article
- Dwarfs standing tall: breeding towards the 'Yellow revolution' through insights into plant height regulation.Plant molecular biology · 2025Review
- GATA family transcription factors in alga Chlamydomonas reinhardtii.Current genetics · 2024Article
- Fine mapping ofMolecular breeding : new strategies in plant improvement · 2022Article
- Identification of small effect quantitative trait loci of plant architectural, flowering, and early maturity traits in reciprocal interspecific introgression population in cotton.Frontiers in plant science · 2022Article
- Molecular mapping of QTLs for grain dimension traits in Basmati rice.Frontiers in genetics · 2022Article
- Mutations of the brassinosteroid biosynthesis gene HvDWARF5 enable balance between semi-dwarfism and maintenance of grain size in barley.Physiologia plantarumArticle
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9 authors at 1 institution in 1 country.
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Abstract
backgroundGrain size is one of the major determinants of cereal crop yield. As a class of plant polyhydroxysteroids, brassinosteroids (BRs) play essential roles in the regulation of grain size and plant architecture in rice. In a previous research, we cloned qGL3/OsPPKL1 encoding a protein phosphatase with Kelch-like repeat domains, which negatively regulates BR signaling and grain length in rice.
resultsHere, we screened qGL3-interacting proteins (GIPs) via yeast two-hybrid assay and analyzed the phenotypes of the T-DNA insertion mutants of GIPs. Among these mutants, mutant osak3 presents shorter grain length and dwarfing phenotype. OsAK3 encodes an adenylate kinase, which regulates grain size by controlling cell expansion of rice spikelet glume. Overexpression of OsAK3 resulted in longer grain length. OsAK3 interacts with qGL3 in vivo and in vitro. Lamina inclination, coleoptile elongation and root inhibition experiments showed that the osak3 mutant was less sensitive to exogenous brassinolide (BL) treatment. The transcriptional level of OsAK3 was up-regulated under BL induction. In addition, RNA-Seq data indicate that OsAK3 is involved in a variety of biological processes that regulate BR signaling and grain development in rice.
conclusionsOur study reveals a novel BR signaling component OsAK3 in the regulation of grain length, and provides novel clues for uncovering the potential functions of OsAK3 in rice growth and development.
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