Abstract
RSOsPR10 (Root Specific Oryza sativa PR 10) was originally found as the root specific protein induced by drought and salt treatment in rice. The mRNA was induced specifically in roots by drought, salt, probenazole, rice blast fungus and jasmonic acid (JA), but not by low temperature, abscisic acid and salicylic acid (SA) treatment (Hashimoto et al., PCP, 2004). In this study, we confirmed that the expression of RSOsPR10 by salt was induced vie JA and that the induction was suppressed by SA using hebiba, JA-deficient mutant. Moreover, we analyzed the localization of RSOsPR10 in rice seedlings by immunohistochemical approach. The protein was detected in the cortex cells that surrounded vascular bundle in the root after salt and JA treatment, but was not detected in the shoot. We also confirmed the suppressive effect of SA on the RSOsPR10 induction by salt or JA treatment in tissue level.
