ArticlePlant physiology2007
Rice shaker potassium channel OsKAT1 confers tolerance to salinity stress on yeast and rice cells.
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 71 papers.
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Who cites it
71 citing papers in PubMed.
- Dual Repression by IPA1 Fine-Tunes OsbZIP79-Mediated Salt Tolerance in Rice.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Expansion and Functional Divergence of Shaker KInternational journal of molecular sciences · 2026Article
- OsKAT1 is a short Shaker potassium channel involved in root-to-shoot potassium translocation and contributes to rice grain yield.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Genome-wide transcriptional and metabolic responses of Eschscholzia californica to salt stress.BMC plant biology · 2026Article
- Differential grain quality responses of rice varieties under combined salt, cadmium and arsenic stresses.Scientific reports · 2025Article
- Shaker KTransgenic research · 2025Article
- The role of gibberellin synthase gene VvGA2ox7 acts as a positive regulator to salt stress in Arabidopsis thaliana.BMC plant biology · 2024Article
- Identification and Characterization ofInternational journal of molecular sciences · 2024Article
- Identification of Shaker Potassium Channel Family Members and Functional Characterization ofInternational journal of molecular sciences · 2024Article
- Combined transcriptomics and metabolomics analysis reveals salinity stress specific signaling and tolerance responses in the seagrass Zostera japonica.Plant cell reports · 2024Article
- Research Progress on Plant Shaker KPlants (Basel, Switzerland) · 2024Review
- Ion Changes and Signaling under Salt Stress in Wheat and Other Important Crops.Plants (Basel, Switzerland) · 2023Review
- Joint QTL Mapping and Transcriptome Sequencing Analysis Reveal Candidate Genes for Salinity Tolerance inInternational journal of molecular sciences · 2023Article
- The Molecular Mechanism of Potassium Absorption, Transport, and Utilization in Rice.International journal of molecular sciences · 2023Review
- Abiotic Stress in Rice: Visiting the Physiological Response and Its Tolerance Mechanisms.Plants (Basel, Switzerland) · 2023Review
- Identification ofLife (Basel, Switzerland) · 2023Article
- Yeast Heterologous Expression Systems for the Study of Plant Membrane Proteins.International journal of molecular sciences · 2023Review
- Genome-Wide Association Study Identified Candidate Genes for Alkalinity Tolerance in Rice.Plants (Basel, Switzerland) · 2023Article
- Recent Molecular Aspects and Integrated Omics Strategies for Understanding the Abiotic Stress Tolerance of Rice.Plants (Basel, Switzerland) · 2023Review
- Receptor-Like Cytoplasmic Kinase STK Confers Salt Tolerance in Rice.Rice (New York, N.Y.) · 2023Article
11 more citing papers are in PubMed but not listed here.
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5 authors.
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Abstract
We screened a rice (Oryza sativa L. 'Nipponbare') full-length cDNA expression library through functional complementation in yeast (Saccharomyces cerevisiae) to find novel cation transporters involved in salt tolerance. We found that expression of a cDNA clone, encoding the rice homolog of Shaker family K(+) channel KAT1 (OsKAT1), suppressed the salt-sensitive phenotype of yeast strain G19 (Deltaena1-4), which lacks a major component of Na(+) efflux. It also suppressed a K(+)-transport-defective phenotype of yeast strain CY162 (Deltatrk1Deltatrk2), suggesting the enhancement of K(+) uptake by OsKAT1. By the expression of OsKAT1, the K(+) contents of salt-stressed G19 cells increased during the exponential growth phase. At the linear phase, however, OsKAT1-expressing G19 cells accumulated less Na(+) than nonexpressing cells, but almost the same K(+). The cellular Na(+) to K(+) ratio of OsKAT1-expressing G19 cells remained lower than nonexpressing cells under saline conditions. Rice cells overexpressing OsKAT1 also showed enhanced salt tolerance and increased cellular K(+) content. These functions of OsKAT1 are likely to be common among Shaker K(+) channels because OsAKT1 and Arabidopsis (Arabidopsis thaliana) KAT1 were able to complement the salt-sensitive phenotype of G19 as well as OsKAT1. The expression of OsKAT1 was restricted to internodes and rachides of wild-type rice, whereas other Shaker family genes were expressed in various organs. These results suggest that OsKAT1 is involved in salt tolerance of rice in cooperation with other K(+) channels by participating in maintenance of cytosolic cation homeostasis during salt stress and thus protects cells from Na(+).
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