Positive Regulator, a Rice C3HC4-type RING Finger Protein HC-2 (OsRFPHC-2), in Response to Salt Stress

Rice is one of major crops for human life. However, environmental stresses such as salinity negatively affect in rice growth, seed germination and reproduction. In this study, we analyzed salt-induced RING finger C3HC4 type E3 ligase (OsRFPHC-2). To determine the biological functions of OsRFPHC-2, we examined E3 ligase activity to invitro ubiquitination assay. Additionally, overexpression OsRFPHC-2 plant performed more tolerance phenotype in 100mM salt stress than WT (Oryza sativa L. cv Dongjinbye). These results showed that OsRFPHC-2 may act as a positive regulator in response salt stress.