ArticleThe Plant cell2005
The Rice brassinosteroid-deficient dwarf2 mutant, defective in the rice homolog of Arabidopsis DIMINUTO/DWARF1, is rescued by the endogenously accumulated alternative bioactive brassinosteroid, dolichosterone.
Article in The Plant cell, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 145 papers.
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145 citing papers in PubMed, 306 citations in OpenAlex.
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- TOR Signaling as a Central Integrator of Embryogenic Reprogramming During 2,4-D-Induced Somatic Embryogenesis.International journal of molecular sciences · 2026Review
- Genetic regulation of stem elongation and thickening in ornamental plants: a review.Horticulture research · 2026Article
- Removal of seed coat H3K27me3 in Arabidopsis requires noncanonical functions of brassinosteroid receptors.The Plant cell · 2026Article
- ZmSSRP1-mediated chromatin accessibility modulates maize development via regulation of ZmBRD1 transcription.Plant physiology · 2026Article
- Genetic, hormonal, and transcriptomic analyses highlight the crucial role of phytohormones in first branch angle regulation in pepper.BMC plant biology · 2025Article
- OsBIR3 maintains the homeostasis of OsBRI1, OsREM4.1, and Brd2 protein levels in brassinosteroid pathways in rice.Plant biotechnology journal · 2025Article
- Rice ETHYLENE RESPONSE FACTOR 101 increases leaf angle by upregulating BRASSINOSTEROID UPREGULATED 1.The Plant journal : for cell and molecular biology · 2025Article
- The Auxin Response FactorPlants (Basel, Switzerland) · 2025Article
- The G-protein γ subunit DEP1 facilitates brassinosteroid signaling in rice via a MYB-bHLH-ARF module.The Plant cell · 2025Article
- Prediction of new candidate proteins and analysis of sub-modules and protein hubs associated with seed development in rice (Oryza sativa) using an ensemble network-based systems biology approach.BMC plant biology · 2025Article
- BR signalling haplotypes contribute to indica-japonica differentiation for grain yield and quality in rice.Plant biotechnology journal · 2025Article
- Article
- Genome-wide association study identifies elite alleles of FLA2 and FLA9 controlling flag leaf angle in rice.BMC genomics · 2025Article
- The OsMAPK6-OsWRKY72 module positively regulates rice leaf angle through brassinosteroid signals.Plant communications · 2025Article
- STay tunEd: mutational analysis of theFrontiers in plant science · 2025Article
- Hormonal regulation and crosstalk during early endosperm and seed coat development.Plant reproduction · 2024Review
- Sex on Steroids: How Brassinosteroids Shape Reproductive Development in Flowering Plants.Plant & cell physiology · 2024Review
- Brassinosteroid biosynthesis and signaling: Conserved and diversified functions of core genes across multiple plant species.Plant communications · 2024Review
85 more citing papers are in PubMed but not listed here.
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Authors and funding
9 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
We have identified a rice (Oryza sativa) brassinosteroid (BR)-deficient mutant, BR-deficient dwarf2 (brd2). The brd2 locus contains a single base deletion in the coding region of Dim/dwf1, a homolog of Arabidopsis thaliana DIMINUTO/DWARF1 (DIM/DWF1). Introduction of the wild-type Dim/dwf1 gene into brd2 restored the normal phenotype. Overproduction and repression of Dim/dwf1 resulted in contrasting phenotypes, with repressors mimicking the brd2 phenotype and overproducers having large stature with increased numbers of flowers and seeds. Although brd2 contains low levels of common 6-oxo-type BRs, the severity of the brd2 phenotype is much milder than brd1 mutants and most similar to d2 and d11, which show a semidwarf phenotype at the young seedling stage. Quantitative analysis suggested that in brd2, the 24-methylene BR biosynthesis pathway is activated and the uncommon BR, dolichosterone (DS), is produced. DS enhances the rice lamina joint bending angle, rescues the brd1 dwarf phenotype, and inhibits root elongation, indicating that DS is a bioactive BR in rice. Based on these observations, we discuss an alternative BR biosynthetic pathway that produces DS when Dim/dwf1 is defective.
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