生物技术通报 ›› 2013, Vol. 0 ›› Issue (1): 78-82.

• 研究报告 • 上一篇    下一篇

转ZjAPX 基因拟南芥对NaCl、干旱胁迫的耐性研究

郭慧娜1,2,孟玉平2, 郝子琪1,2,李倩1,2, 曹秋芬1,2,3   

  1. 1. 山西大学生物工程学院,太原 030031 ;2. 山西省农业科学院生物技术研究中心,太原 030031 ;3. 农业部黄土高原作物基因资源与种质创制重点实验室,太原 030031
  • 收稿日期:2012-07-03 修回日期:2013-01-31 出版日期:2013-01-30 发布日期:2013-01-30
  • 作者简介:郭慧娜,女,硕士研究生,研究方向:植物分子生物学;E-mail: 1095341484@qq.com
  • 基金资助:
    山西省自然科学基金项目(2010011038-2)

ZjAPX Gene Improving Resistance to NaCl and Drought Stress in Arabidopsis

Huina1,2,Meng Yuping2 ,Hao Ziqi1,2,Li Qian1,2,Cao Qiufen1,2,3   

  1. 1. College of Biological Engineering,Shanxi University,Taiyuan 030031;
    2. Biotechnology Research Center,Shanxi Academy of Agricultural Sciences,Taiyuan 030031;
    3. Key Laboratory of Crop Gene Resources and Germplasm Enhancement on Loess Plateau,Ministry of Agriculture,P.R.China,Taiyuan 030031
  • Received:2012-07-03 Revised:2013-01-31 Published:2013-01-30 Online:2013-01-30

摘要: 旨在探讨枣树抗坏血酸过氧化物酶基因ZjAPX 在植物渗透胁迫中的作用。将ZjAPX 基因转入到模式植物拟南芥,以野生型(WT)、转ZjAPX 拟南芥株系T2 为试材,进行不同浓度NaCl 胁迫和干旱胁迫。结果表明,转基因株系的种子萌发、植株生长均优于野生型株系;荧光定量PCR 检测转基因拟南芥植株在干旱和盐胁迫处理10 d 后目的基因ZjAPX 的表达量显著高于野生拟南芥,表明ZjAPX 的高表达明显提高了植株的抗旱和耐盐性。

关键词: ZjAPX , 转基因 , 拟南芥 , NaCl , 胁迫 , 干旱胁迫

Abstract: In order to investigate the function of ZjAPX(Zizyphus jujuba ascorbate peroxidase )in response of plant to osmotic stress.In this study, ZjAPX gene was introduced into Arabidopsis. Wild type(WT)and transgenic type of Arabidopsis were used to the NaCl osmoticstress and drought stress. These results suggested that transgenic seeds germination and seedlings growth were both better than the wild-type.At 10 days to be treated with NaCl osmotic stress and drought stress, real-time quantitative PCR detection showed that the transcription level ofZjAPX in transgenic plants was significantly higher than wide type. These results suggest that high expression of ZjAPX increased plant NaClosmotic stress and drought tolerance.

Key words: ZjAPX , Transgenic , Arabidopsis , NaCl osmotic stress , Drought stress