ArticlePlant physiology2007
Conservation of the salt overly sensitive pathway in rice.
Article in Plant physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 216 papers.
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Who cites it
216 citing papers in PubMed, 617 citations in OpenAlex.
- OASA1D-Mediated Tryptophan Enrichment Improves Redox and Ionic Homeostasis Under Salt Stress in Rice.International journal of molecular sciences · 2026Article
- Single-Cell and Spatial Omics Technologies in Rice Abiotic Stress Biology: A Methodological Review.International journal of molecular sciences · 2026Review
- Cyclic nucleotide-gated channels 14, 15, and 16 coordinate multiple signaling pathways to promote salt tolerance in rice.The Plant journal : for cell and molecular biology · 2026Article
- Insights into Salinity Stress-Induced Morpho-Physiological and Molecular Responses and Nanoparticle- and Nanobiochar-Mediated Tolerance Mechanisms During Seed Germination.Nanomaterials (Basel, Switzerland) · 2026Review
- Fulvic Acid Suppresses Excessive Cytokinin Biosynthesis to Reduce ROS Content and thus Decrease NaRice (New York, N.Y.) · 2026Article
- Genome-Wide Identification of thePlants (Basel, Switzerland) · 2026Article
- Genome-wide identification of the HvSCAMP gene family in barley and functional characterization of the role of HvSCAMP1 in salt tolerance.BMC plant biology · 2026Article
- Review
- OsABA45 Negatively Regulates Salt Stress Responses by Modulating Abscisic Acid Biosynthesis in Rice.Rice (New York, N.Y.) · 2026Article
- From Model Plants to Staple Crops: Molecular Mechanisms of Plant Saline-Alkali Tolerance.Plants (Basel, Switzerland) · 2026Review
- Analysis of salt resistance conferred by salt overly sensitive 3 protein from mulberry (Frontiers in plant science · 2026Article
- Genomic Variation and GWAS Analysis for Salt Tolerance Discovered in Egyptian Rice Germplasm.Plants (Basel, Switzerland) · 2026Article
- Different Substrates Drive Differential Responses of Rice to Salt Stress.Rice (New York, N.Y.) · 2025Article
- The role of aerenchymatous gas spaces in root sodium ion management under salt stress: do they matter in rice?Annals of botany · 2025Article
- Epigenetic Regulation of Salt Stress Responses in Rice: Mechanisms and Prospects for Enhancing Tolerance.Epigenomes · 2025Review
- SOS3 fromCells · 2025Article
- Arabidopsis as a model for translational research.The Plant cell · 2025Review
- Lignin-containing cellulose nanofiber-selenium nanoparticle hybrid enhances tolerance to salt stress in rice genotypes.Scientific reports · 2025Article
- Article
- Salinity survival: molecular mechanisms and adaptive strategies in plants.Frontiers in plant science · 2025Review
156 more citing papers are in PubMed but not listed here.
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
The salt tolerance of rice (Oryza sativa) correlates with the ability to exclude Na+ from the shoot and to maintain a low cellular Na+/K+ ratio. We have identified a rice plasma membrane Na+/H+ exchanger that, on the basis of genetic and biochemical criteria, is the functional homolog of the Arabidopsis (Arabidopsis thaliana) salt overly sensitive 1 (SOS1) protein. The rice transporter, denoted by OsSOS1, demonstrated a capacity for Na+/H+ exchange in plasma membrane vesicles of yeast (Saccharomyces cerevisiae) cells and reduced their net cellular Na+ content. The Arabidopsis protein kinase complex SOS2/SOS3, which positively controls the activity of AtSOS1, phosphorylated OsSOS1 and stimulated its activity in vivo and in vitro. Moreover, OsSOS1 suppressed the salt sensitivity of a sos1-1 mutant of Arabidopsis. These results represent the first molecular and biochemical characterization of a Na+ efflux protein from monocots. Putative rice homologs of the Arabidopsis protein kinase SOS2 and its Ca2+-dependent activator SOS3 were identified also. OsCIPK24 and OsCBL4 acted coordinately to activate OsSOS1 in yeast cells and they could be exchanged with their Arabidopsis counterpart to form heterologous protein kinase modules that activated both OsSOS1 and AtSOS1 and suppressed the salt sensitivity of sos2 and sos3 mutants of Arabidopsis. These results demonstrate that the SOS salt tolerance pathway operates in cereals and evidences a high degree of structural conservation among the SOS proteins from dicots and monocots.
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