华北农学报 ›› 2007, Vol. 22 ›› Issue (4): 33-36. doi: 10.7668/hbnxb.2007.04.008

所属专题: 盐碱胁迫 生物技术

• 论文 • 上一篇    下一篇

p5CS基因在蒙农杂种冰草植株中的表达及耐盐性研究

王桂花1, 米福贵2, 刘娟2, 董淑君2, 霍秀文3, 杨宏雁4   

  1. 1. 内蒙古农业大学生物工程学院, 内蒙古 呼和浩特 010018;
    2. 内蒙古农业大学生态环境学院, 内蒙古 呼和浩特 010018;
    3. 内蒙古农业大学农学院, 内蒙古 呼和浩特 010018;
    4. 呼和浩特市草原工作站, 内蒙古 呼和浩特 010010
  • 收稿日期:2007-01-03 出版日期:2007-08-28
  • 作者简介:王桂花(1972-),女(蒙古族),内蒙古开鲁人,讲师,博士,主要从事牧草种质资源、遗传育种与生物技术研究。
  • 基金资助:
    国家转基因植物与产业化研究专项资助项目(J2002-B-008)

Studies on the Expression of Exogenous p5CS Gene in Transgenic Wheatgrasses (Agropyron cristatum×A. Desertorum cv.’ Hycrest-Mengnong’) and Drought Resistance

WANG Gui-hua1, MI Fu-gui2, LIU Juan2, DONG Shu-jun2, HUO Xiu-wen3, YANG Hong-yan4   

  1. 1. The College of Biological Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China;
    2. College of Ecology and Environment Sciences, Inner Mongolia Agricultural University, Huhhot 010018, China;
    3. College of Agronomy, Inner Mongolia Agricultural University, Huhhot 010018, China;
    4. Huhhot Grassland Station, Huhhot 010010, China
  • Received:2007-01-03 Published:2007-08-28

摘要: 为尽快培育出适宜我国干旱荒漠地区大面积推广的耐盐冰草新品种,试验以经PCR和Southern blot杂交检盐溶液进行胁迫处理确定转化植株的耐盐性。结果表明:转基因冰草植株与DIG标记探针杂交呈现明显的杂交带;盐胁迫下,游离脯氨酸含量增加较快,质膜透性、丙二醛含量增加较小,SOD活性较高。说明p5CS基因能够在冰草基因组的转录水平上表达,表达植株的耐盐性明显增加。

关键词: p5CS基因, Nouthern blot, 盐胁迫, 耐盐性

Abstract: In order to breed a new salt tolerance variety which adapt to extend in drought areas in China, The p5CS gene expressed in transgenic hybrid wheatgrass (Agropyron cristatum A. desertorum cv.' Hycrest-Mengnong'), which indentified by PCR analysis and Southern blot, was investigated with Northern blot and physiological index was determined under 1.5% NaCl stress. The results showed that transgenic wheatgrasses and DIG marker hybridize was present obvious strap; under salt stress, Pro contents was increased quickly, cell membrane permeabilities and MDA contents were increased slowly, SOD activity was high. The results indicated that exogenous gene p5CS expressed at transcription level in transgenic plants, and salt tolerance of transgenic plants were enhanced.

Key words: p5CS gene, Northern blot, Salt stress, Salt tolerance

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引用本文

王桂花, 米福贵, 刘娟, 董淑君, 霍秀文, 杨宏雁. p5CS基因在蒙农杂种冰草植株中的表达及耐盐性研究[J]. 华北农学报, 2007, 22(4): 33-36. doi: 10.7668/hbnxb.2007.04.008.

WANG Gui-hua, MI Fu-gui, LIU Juan, DONG Shu-jun, HUO Xiu-wen, YANG Hong-yan. Studies on the Expression of Exogenous p5CS Gene in Transgenic Wheatgrasses (Agropyron cristatum×A. Desertorum cv.’ Hycrest-Mengnong’) and Drought Resistance[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(4): 33-36. doi: 10.7668/hbnxb.2007.04.008.