生物技术通报 ›› 2015, Vol. 31 ›› Issue (3): 88-95.doi: 10.13560/j.cnki.biotech.bull.1985.2015.04.012

• 研究报告 • 上一篇    下一篇

水稻OsSHAT1OsRSR1应答激素及逆境胁迫的表达特性

李哲1, 张少绚2, 黄荣峰1   

  1. (1. 中国农业科学院生物技术研究所,北京 100081;2. 青岛农业大学生命科学学院,青岛 266000)
  • 收稿日期:2014-11-07 出版日期:2015-03-16 发布日期:2015-03-16
  • 作者简介:李哲,男,硕士研究生,研究方向:植物抗逆分子生物学;E-mail:lizhe0120@yeah.net
  • 基金资助:
    国家转基因生物新品种培育重大专项(2014ZX08009-015B)

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

Li Zhe1 Zhang Shaoxuan2 Huang Rongfeng1   

  1. (1. Biotechnology Research Institute,Chinese Academy of Agricultural Sciences,Beijing 100081;2. College of Life Science,Qingdao Agriculture University,Qingdao 266000)
  • Received:2014-11-07 Published:2015-03-16 Online:2015-03-16

摘要: 旨在研究AP2家族类因子是否参与逆境胁迫应答过程。通过序列比对发现,水稻OsSHAT1和OsRSR1蛋白序列一致性达41.92%,表明OsSHAT1OsRSR1是同源性较高的AP2家族因子;且OsSHAT1OsRSR1基因启动子序列都包含有ABRE、DRE、MYB、MYC、WRKY、GCC-box和ERE等应答不同胁迫及激素信号的元件。基因表达分析表明,OsSHAT1受低温、NaCl、ABA、ACC抑制,受干旱诱导表达;而OsRSR1受低温、干旱、ABA、ACC抑制,受NaCl诱导表达。推测OsSHAT1OsRSR1可能通过不同的转录调控方式影响耐逆相关基因的表达,进而调节水稻不同的逆境胁迫反应。

关键词: AP2, OsSHAT1, OsRSR1, 非生物胁迫, 水稻

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