生物技术通报 ›› 2016, Vol. 32 ›› Issue (1): 109-114.doi: 10.13560/j.cnki.biotech.bull.1985.2016.01.019

• 研究报告 • 上一篇    下一篇

山葡萄CBF基因表达载体构建及对拟南芥根生长的影响

王法微1, 董金晔2, 李晓薇1, 刘洋2, 吴学彦2, 王南1, 董园园1, 陈欢2, 李海燕1, 2   

  1. 1. 吉林农业大学生物反应器与药物开发教育部工程研究中心, 长春 130118;
    2. 吉林农业大学生命科学学院, 长春 130118
  • 收稿日期:2015-02-28 出版日期:2016-01-09 发布日期:2016-01-22
  • 作者简介:王法微, 男, 助理研究员, 研究方向:植物分子生物学;E-mail:fw-1980@163.com
  • 基金资助:
    国家自然科学基金项目(31201144, 31271746), 吉林省发改委项目(JF2012C002-04), 吉林农业大学国家大学生创新创业训练计划项目(201410193036)

The Construction of Expression Vector of Gene CBF from Vitis amurensis and the Effects of It on the Root Growth of Arabidopsis

WANG Fa-wei1, DONG Jin-ye2, LI Xiao-wei1, LIU Yang2, WU Xue-yan2, WANG Nan1, DONG Yuan-yuan1, CHEN Huan2, LI Hai-yan1, 2   

  1. 1. Ministry of Education Engineering Research Center of Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118;
    2. College of Life Sciences, Jilin Agricultural University, Changchun 130118
  • Received:2015-02-28 Published:2016-01-09 Online:2016-01-22

摘要: 为了研究山葡萄CBF基因调节植物对盐胁迫的应答机理, 分别构建了山葡萄VaCBF1VaCBF2VaCBF3的植物过表达载体。经酶切及琼脂糖电泳检测证实3个基因均插入到pBASTA中, 表明表达载体构建成功。然后, 分别将3个植物过表达载体转入农杆菌EHA105中, 并通过浸花法浸染拟南芥。利用除草剂筛选获得3个基因的拟南芥过表达株系。最后, 对野生型拟南芥与转基因拟南芥进行盐胁迫处理, 发现OE-CBF2转基因植株的主根伸长长度显著长于其它植株, 3个转基因株系的侧根长度也明显长于野生型植株。上述结果表明山葡萄CBF基因可能在植物盐胁迫中对根部生长发育起到非常重要的调控作用。

关键词: 山葡萄, CBF基因, 表达载体, 根生长

Abstract: In order to investigate the response mechanism of CBF gene in the regulation of plant to the salt stress, the plant over-expression vectors of VaCBF1, VaCBF2 and VaCBF3 from Vitis amurensis were constructed. The results by restriction enzyme digestion and agarose gel electrophoresis showed that 3 genes were correctly inserted into pBASTA, indicating that the expression vectors were successfully constructed. Then, 3 over-expressed vectors were transformed into Agrobacterimu tumefaciens EHA105, and Arabidopsis thaliana was leached using floral dip method. The transgenic plants of A. thaliana with over-expression of 3 genes were screened by herbicide Basta. Furthermore, wild and transgenic plants were treated with salt stress. The results revealed that the elongation length of primary root of OE-CBF2 transgenic plant was longer than others, and the lateral roots in 3 genes transgenic plants were longer than wild ones. These results indicate that the CBF genes of V. amurensis play the critical regulation role in the root development during salt stress.

Key words: Vitis amurensis, CBF gene, expression vector, root growth