HKT transport protein is an ion transporter thai exists on plasmalemma and a ubiquitous transmembrane protein responsible for Na ＋ transport and K＋ - Na ＋ symport. HKT transport protein is regulated by the expressi...HKT transport protein is an ion transporter thai exists on plasmalemma and a ubiquitous transmembrane protein responsible for Na ＋ transport and K＋ - Na ＋ symport. HKT transport protein is regulated by the expression of ItKT family genes. The overexpression of HKT family genes can improve activity of Na＋ transport and K＋ - Na＋ s.vmport proteins in plants, lead to Na ＋ recycle, reduce Na ＋ concentration in vivo, maintain K ＋/Na＋ ratio, and ensure normal physiological functions of eells, thereby improving salt toleranee of plants. This paper introduced the discovery and claning of HKT family genes, revealed interactions between HKT family genes and SOS, NHX genes, and summarized the relationship between the structure, function of HKT protein and salt tolerance of plants to clarify the function and mechanism of action of HKT transport protein, aiming at laying the foundation for genetic engineering of plants for salt tolerauee and providing basis for breeding haloduric transgenie plant.展开更多
基金Supported by Graduate Science and Technology Innovation Project of Inner Mongolia Autonomous Region(S2016013604)National Natural Science Foundation of China(31260336)
文摘HKT transport protein is an ion transporter thai exists on plasmalemma and a ubiquitous transmembrane protein responsible for Na ＋ transport and K＋ - Na ＋ symport. HKT transport protein is regulated by the expression of ItKT family genes. The overexpression of HKT family genes can improve activity of Na＋ transport and K＋ - Na＋ s.vmport proteins in plants, lead to Na ＋ recycle, reduce Na ＋ concentration in vivo, maintain K ＋/Na＋ ratio, and ensure normal physiological functions of eells, thereby improving salt toleranee of plants. This paper introduced the discovery and claning of HKT family genes, revealed interactions between HKT family genes and SOS, NHX genes, and summarized the relationship between the structure, function of HKT protein and salt tolerance of plants to clarify the function and mechanism of action of HKT transport protein, aiming at laying the foundation for genetic engineering of plants for salt tolerauee and providing basis for breeding haloduric transgenie plant.
