We have identified the 337th amino acid, which constitutes the OsNRAMP5 protein, as an important site for the regulation of cadmium and manganese transport. Rice plants, in which the amino acid at this site has been changed from glutamine to lysine due to mutation, the uptake of both elements is suppressed, but the amount of manganese necessary for growth can be secured. This result will be useful for the development of rice cultivars with improved safety and productivity.
Center/Institute : Institute for Agro-Environmental Sciences