ArticlePlanta2024
OsRR26, a type-B response regulator, modulates salinity tolerance in rice via phytohormone-mediated ROS accumulation in roots and influencing reproductive development.
Article in Planta, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 18 citations in OpenAlex.
- Triacontanol Boosts Soybean Nodulation viaPlants (Basel, Switzerland) · 2026Article
- Multi-omics Analysis Reveals the Hormonal Basis of Differential Response to Nighttime Heat Temperature Between Superior and Inferior Rice Grains.Rice (New York, N.Y.) · 2026Article
- Molecular and Physiological Regulation of Premature Leaf Senescence in Rice.Plants (Basel, Switzerland) · 2026Review
- Comparative transcriptome analysis provides insights into the gene regulation network of cytoplasmic male sterility in chilli pepper.AoB PLANTS · 2026Article
- Cytokinin derivatives as tools to enhance plant stress resilience.Frontiers in plant science · 2026Review
- Autopolyploidization reshapes transcription factor regulatory networks and enhances MAPK-associated thermotolerance in rice.Frontiers in plant science · 2026Article
- Salinity Stress Induces Phase Separation of Plant BARENTSZ to Form Condensates.Rice (New York, N.Y.) · 2025Article
- Genomics-assisted breeding for designing salinity-smart future crops.Plant biotechnology journal · 2025Review
- Oxidative Stress in Rice (Plants (Basel, Switzerland) · 2025Review
- Genome-wide characterization of two-component system elements in barley enables the identification of grain-specific phosphorelay genes.BMC plant biology · 2025Article
- Genome-wide identification and expression analysis of two-component system genes in switchgrass (Panicum virgatum L.).BMC plant biology · 2024Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
MAIN
conclusionOsRR26 is a cytokinin-responsive response regulator that promotes phytohormone-mediated ROS accumulation in rice roots, regulates seedling growth, spikelet fertility, awn development, represses NADPH oxidases, and negatively affects salinity tolerance. Plant two-component systems (TCS) play a pivotal role in phytohormone signaling, stress responses, and circadian rhythm. However, a significant knowledge gap exists regarding TCS in rice. In this study, we utilized a functional genomics approach to elucidate the role of OsRR26, a type-B response regulator in rice. Our results demonstrate that OsRR26 is responsive to cytokinin, ABA, and salinity stress, serving as the ortholog of Arabidopsis ARR11. OsRR26 primarily localizes to the nucleus and plays a crucial role in seedling growth, spikelet fertility, and the suppression of awn development. Exogenous application of cytokinin led to distinct patterns of reactive oxygen species (ROS) accumulation in the roots of both WT and transgenic plants (OsRR26OE and OsRR26KD), indicating the potential involvement of OsRR26 in cytokinin-mediated ROS signaling in roots. The application of exogenous ABA resulted in varied cellular compartmentalization of ROS between the WT and transgenic lines. Stress tolerance assays of these plants revealed that OsRR26 functions as a negative regulator of salinity stress tolerance across different developmental stages in rice. Physiological and biochemical analyses unveiled that the knockdown of OsRR26 enhances salinity tolerance, characterized by improved chlorophyll retention and the accumulation of soluble sugars, K
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