Abstract
The ionic transport systems function to maintain the ionic homeostasis in the cells under the salt stress. Sodium ions were removed from the cytoplasm by Na+/H+ antiporters localized on tonoplasts and plasma membranes. We hardly know about intercellular behavior of chloride ions, a counter ion for Na+, under the high salt condition. It were reported that AtCLC-a and -c play a role in controlling the intracellular nitrate status in Arabidopsis. However, other functions were not known. To assess the function of rice chloride channel genes OsCLC-1 and -2, we isolated loss of function mutants from a panel of rice mutants produced by the insertion of a retrotransposon, Tos17. We found mutants of the OsCLC-1 or -2 were defects in the growth and development at the vegetative stage. So, OsCLC-1 and -2 are important for growth of rice.
