Ectopic Expression of a Bacterium NhaD-type Na+/H+ Antiporter Leads to Increased Tolerance to Combined Salt/Alkali Stresses Cloning and sequence analysis of aNa+/H+ antiporter gene in the halophyte Limonium gmelinii Cloning and Sequence Analysis of a cDNA Encoding Na+/H+ Antiporter from Haloxylon ammodendron Antiporter Gene from Hordum brevisubulatum (Trin.) Link and Its Overexpression in Transgenic Tobaccos Isolation and Expression of Vacuolar Membrane Na+/H+ Antiporter Gene in Reaumuria trigyna Overexpression of AtNHX5 Increases Salt Tolerance of Arabidopsis thaliana Regulation of Rice (Oryza sativa) NHX1 Gene:Role of Its Promoter and C terminal