Abstract
Rush are monocotyledon tolerant to high salt conditions, found growing along marsh and seashore. There are few reports on the mechanism of salt tolerance in the rush. To analyze the molecular mechanisms for salt tolerance in rush, functional screening of cDNAs encoding proteins which may important role for salt tolerance in the halophytes was done using Escherichia coli as a host organism. In this screening, cDNAs encoding proline-rich arabinogalactan protein homolog were successfully isolated. Proline-rich protein may plays an important role for salt tolerance mechanism in rush.