The Expression of Rice OsSHAT1 and OsRSR1 in Response to Hormones and Abiotic Stresses

doi:10.13560/j.cnki.biotech.bull.1985.2015.04.012

Abstract

Abstract: It was to research whether AP2 family factors involved in the stress response process. In this study, sequence alignment revealed that OsSHAT1 and OsRSR1 proteins share 41.92% sequence identity, indicating that OsSHAT1 and OsRSR1 are homologous members of AP2 family. And the promoter sequences of OsSHAT1 and OsRSR1 genes contain multiple stress and hormone responsible cis-acting elements, such as ABRE, DRE, MYB, MYC, WRKY, GCC-box and ERE. Transcript analysis showed that the expression of OsSHAT1 was suppressed by low temperature, NaCl, ABA, ACC, but induced by drought；while the transcripts of OsRSR1 was inhibited by low temperature, drought, ABA and ACC, but enhanced by NaCl. It is speculated that OsSHAT1 and OsRSR1 may influence the expression of stress related genes by transcriptional regulation in differential ways, and then adjust the distinctive stress response of rice.

Key words: AP2, OsSHAT1, OsRSR1, abiotic stress, rice

Li Zhe, Zhang Shaoxuan, Huang Rongfeng,. The Expression of Rice OsSHAT1 and OsRSR1 in Response to Hormones and Abiotic Stresses[J]. Biotechnology Bulletin, 2015, 31(3): 88-95.

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