ArticleBMC plant biology2019
Role of brassinosteroids in rice spikelet differentiation and degeneration under soil-drying during panicle development.
Article in BMC plant biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 45 citations in OpenAlex.
- Brassinolide Alleviates Maize Silk Growth Under Water Deficit by Reprogramming Sugar Metabolism and Enhancing Antioxidant Defense.Plants (Basel, Switzerland) · 2026Article
- Integrated physiological, proteomic, and phosphoproteomic analyses of 24-epibrassinolide-mediated yield protection under complete submergence during panicle differentiation in rice.Frontiers in plant science · 2026Article
- Microplastic Has No Effect on Rice Yield and Gaseous N Emission from an Infertile Soil with High Inorganic N Inputs.Plants (Basel, Switzerland) · 2024Article
- Article
- Response of Rice with Overlapping Growth Stages to Water Stress by Assimilates Accumulation and Transport and Starch Synthesis of Superior and Inferior Grains.International journal of molecular sciences · 2022Article
- Targeted Phytohormone Profiling Identifies Potential Regulators of Spikelet Sterility in Rice under Combined Drought and Heat Stress.International journal of molecular sciences · 2021Article
- Phytohormone-Mediated Molecular Mechanisms Involving Multiple Genes and QTL Govern Grain Number in Rice.Frontiers in genetics · 2020Review
- 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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Authors and funding
9 authors at 3 institutions in 3 countries.
Funding
Abstract
backgroundBrassinosteroids (BRs) are a new group of plant hormones and play important roles in plant growth and development. However, little information is available if BRs could regulate spikelet development in rice (Oryza sativa L.) especially under soil-drying conditions. This study investigated whether and how BRs mediate the effect of soil-drying on spikelet differentiation and degeneration in rice. A rice cultivar was field-grown and exposed to three soil moisture treatments during panicle development, that is, well-watered (WW), moderate soil-drying (MD) and severe soil-drying (SD).
resultsCompared with the WW treatment, the MD treatment enhanced BRs biosynthesis in young panicles, increased spikelet differentiation and reduced spikelet degeneration. The SD treatment had the opposite effects. Changes in expression levels of key rice inflorescence development genes (OsAPO2 and OsTAW1), ascorbic acid (AsA) content, and activities of enzymes involved AsA synthesis and recycle, and amount of nonstructural carbohydrates (NSC) in young panicles were consistent with those in BRs levels, whereas hydrogen peroxide (H
conclusionsThe results suggest that BRs mediate the effect of soil-drying on spikelet differentiation and degeneration, and elevated BRs levels in rice panicles promote spikelet development under MD by enhancing inflorescence meristem activity, AsA recycle and NSC partitioning to the growing panicles.
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