HKT is a major transporter of Na+ ion inside the plant. It regulates the uptake, distribution and maintenance of Na+/K+ homeostasis in the plant. HKT is family of protein in which some are specific to Na+ mainly, while some are specific to both Na+ and K+. The expression of concerned HKT in different parts at different stage may alleviate the Na+ ion toxicity in plants. Therefore Na+ toxicity which is due to salinity stress can be regulated by distribution of their transporters i.e. HKT.