Abstract
The ion transporters in the cytoplasmic and organelle membranes play many important roles of the ionic homeostasis in the cytoplasm. We have restricted knowledge about the plant ionic transporters. So, we tried to analyze the function of ionic transporters using loss-of-function mutation of rice, that is mutant panel. We isolated the mutants inserted a retrotransposon, Tos17, in chloride channel genes(OsCLC-1 and -2) and the vacuolar Na+/H+ antiporter gene(OsNHX1) from the panel of O. sativa, cv Nipponbare. The mutant of OsCLC-2 was sensitive to NaCl treatment in the growth. All mutants isolated need the high concentration of some nutrients in various patterns, especially in very young stage.
