中国农业科学 ›› 2004, Vol. 37 ›› Issue (11): 1593-1597 .

• 作物遗传育种.种质资源 •    下一篇

小麦糖原合成酶激酶(TaGSK1)表达载体的构建及原核表达

徐涛,黄占景   

  1. 河北师范大学生命科学学院
  • 收稿日期:2003-07-21 修回日期:2004-05-28 出版日期:2004-11-20 发布日期:2004-11-20
  • 通讯作者: 黄占景

Construction of Triticum aestium L. Glycogen Synthase Kinase (TaGSK1) Expression Vector and Its Prokaryotic Expression

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  1. 河北师范大学生命科学学院
  • Received:2003-07-21 Revised:2004-05-28 Online:2004-11-20 Published:2004-11-20

摘要: 利用PCR技术,以糖原合成酶激酶(TaGSK1)基因的pDT-23质粒为模板,对小麦Tagsk1基因进行了扩增和测序。将之转入原核表达载体pBV221,得到pBV221-gsk1;用之分别转化大场杆菌DH5α和BL21,均检测到相对分子量为43.5kD的表达产物TaGSK1蛋白,表达量分别为8%和10.8%。在0.31 mol·L-1 NaCl浓度下,转化子的耐盐能力比受体菌明显提高。

关键词: 小麦, 糖原合成酶激酶, 原核表达, 耐盐性分析

Abstract: Utilizing plasmid pDT-23 containing Tagsk1 as template, Tagsk1 was amplified and sequenced, and then ligased it into prokaryotic expression vector pBV221, then the pBV221-gsk1 was obtained. Tagsk1 expressed 43.5kD protein both in E.coli DH5α and BL21 whose expression amount were 8% and 10.8% respectively. Tagsk1 improved the transformants' salt tolerance greatly at the concentration of 0.31 mol·L-1 NaCl.

Key words: Wheat, TaGSK1, Prokaryotic expression, Salt-tolerance analyze