ArticlePlanta2011
Molecular and functional analyses of rice NHX-type Na+/H+ antiporter genes.
Article in Planta, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 102 papers, 1 of them a synthesis that pooled it.
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Who cites it
102 citing papers in PubMed, 1 synthesis or guideline pooled it, 263 citations in OpenAlex.
- Meta-analysis of identified genomic regions and candidate genes underlying salinity tolerance in rice (Oryza sativa L.).Scientific reports · 2024Pooled it
- Lhca4 Maintaining Photochemical Efficiency and ROS Homeostasis Contributes to Rice Salt Tolerance.Rice (New York, N.Y.) · 2026Article
- Fulvic Acid Suppresses Excessive Cytokinin Biosynthesis to Reduce ROS Content and thus Decrease NaRice (New York, N.Y.) · 2026Article
- GWAS and Regularised Regression Identify SNPs Associated with Candidate Genes for Stage-Specific Salinity Tolerance in Rice.Plants (Basel, Switzerland) · 2026Article
- OsABA45 Negatively Regulates Salt Stress Responses by Modulating Abscisic Acid Biosynthesis in Rice.Rice (New York, N.Y.) · 2026Article
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- Cloning and Functional Verification of Salt Tolerance GenePlants (Basel, Switzerland) · 2025Article
- Structural and Functional Characterization of the Vacuolar-Type NaBiomolecules · 2025Article
- OsWNK9 regulates the expression of key transcription factors, phytohormonal, and transporters genes to improve salinity stress tolerance in rice.Scientific reports · 2025Article
- A KRice (New York, N.Y.) · 2025Article
- Genome-Wide Identification of the Cation/Proton Antiporter (International journal of molecular sciences · 2025Article
- Overexpression ofFrontiers in plant science · 2025Article
- An Enhanced Interaction of Graft and Exogenous SA on Photosynthesis, Phytohormone, and Transcriptome Analysis in Tomato under Salinity Stress.International journal of molecular sciences · 2024Article
- Exogenous Eugenol Alleviates Salt Stress in Tobacco Seedlings by Regulating the Antioxidant System and Hormone Signaling.International journal of molecular sciences · 2024Article
- Identification and Functional Analysis ofInternational journal of molecular sciences · 2024Article
- Potassium transporter OsHAK17 may contribute to saline-alkaline tolerant mechanisms in rice (Oryza sativa).Journal of plant research · 2024Article
- Transcriptomic and Lipidomic Analysis Reveals Complex Regulation Mechanisms Underlying Rice Roots' Response to Salt Stress.Metabolites · 2024Article
- The potassium transporter TaNHX2 interacts with TaGAD1 to promote drought tolerance via modulating stomatal aperture in wheat.Science advances · 2024Article
- Genome-wide characterization of the CPA gene family in potato and a preliminary functional analysis of its role in NaCl tolerance.BMC genomics · 2024Article
42 more citing papers are in PubMed but not listed here.
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We previously cloned a vacuolar Na+/H+ antiporter gene (OsNHX1) from rice (Oryza sativa). Here we identified four additional NHX-type antiporter genes in rice (OsNHX2 through OsNHX5) and performed molecular and functional analyses of those genes. The exon-intron structure of the OsNHX genes and the phylogenetic tree of the OsNHX proteins suggest that the OsNHX proteins are categorized into two subgroups (OsNHX1 through OsNHX4 and OsNHX5). OsNHX1, OsNHX2, OsNHX3, and OsNHX5 can suppress the Na+, Li+, and hygromycin sensitivity of yeast nhx1 mutants and their sensitivity to a high K+ concentration. The expression of OsNHX1, OsNHX2, OsNHX3, and OsNHX5 is regulated differently in rice tissues and is increased by salt stress, hyperosmotic stress, and ABA. When we studied the expression of β-glucuronidase (GUS) driven by either the OsNHX1 or the OsNHX5 promoter, we observed activity in the stele, the emerging part of lateral roots, the vascular bundle, the water pore, and the basal part of seedling shoots with both promoters. In addition, each promoter had a unique expression pattern. OsNHX1 promoter-GUS activity only was localized to the guard cells and trichome, whereas OsNHX5 promoter-GUS activity only was localized to the root tip and pollen grains. Our results suggest that the members of this gene family play important roles in the compartmentalization into vacuoles of the Na+ and K+ that accumulate in the cytoplasm and that the differential regulation of antiporter gene expression in different rice tissues may be an important factor determining salt tolerance in rice.
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