Apple is one of very important fruits in China. Calcium has a very important role in production and storage of apple. Study calcium of Apple in the past mainly on the morphology and cellular, the research of Ca2+/H+Antiporter of apple has not been reported in the moment. In this research, we studyed calcium concentration in fruit and leaf of Nagafu 6'apple; Ca2+/H+ antiporter activity in plasma and tonoplast. We also researched the expression of MdCAX1 gene in defferent parts of Malus robusta seedlings. All...