欢迎访问《草业学报》官方网站,今天是 分享到:

草业学报 ›› 2012, Vol. 21 ›› Issue (2): 149-155.

• 研究论文 • 上一篇    下一篇

转红树总DNA紫花苜蓿T1代耐盐株系的生理生化特性分析

张立全1,敖登花1,师文贵2,牛一丁1,韩岚1,哈斯阿古拉1*   

  1. 1.内蒙古大学生命科学学院 内蒙古自治区牧草与特色作物生物技术重点实验室,内蒙古 呼和浩特 010021;
    2. 中国农业科学院草原研究所,内蒙古 呼和浩特 010010
  • 收稿日期:2011-02-23 出版日期:2012-02-25 发布日期:2012-04-20
  • 通讯作者: E-mail:hasind@sina.com
  • 作者简介:张立全(1978-),男,内蒙古锡盟人,实验师,博士。E-mail:zhangliquan430@sohu.com
  • 基金资助:
    国家科技支撑计划子课题(2008BADB3B01-02),内蒙古自然科学基金重大项目(2011ZD03),内蒙古大学“513人才计划”科研项目和内蒙古大学高层次引进人才科研启动基金项目(115106)资助。

Analysis of physiological and biochemical characteristics of T1 salt-tolerant transgenic alfalfa transformed with the Rhizophora apiculatatotal total DNA via the pollen-tube pathway

ZHANG Li-quan1, AO Deng-hua1, SHI Wen-gui2, NIU Yi-ding1, HAN Lan1, HASI Agula1   

  1. 1.College of Life Sciences, Inner Mongolia University, Inner Mongolia Key Laboratory of Herbage & Endemic Crop Biotechnology, Hohhot 010021, China;
    2. Institute of Grassland Research, Chinese Academy of Agricultural Sciences, Hohhot 010010, China
  • Received:2011-02-23 Online:2012-02-25 Published:2012-04-20

摘要: 以花粉管通道法转红树总DNA紫花苜蓿阿尔冈金T1代耐盐植株幼苗为材料,经300 mmol/L NaCl处理后,测定叶绿素、脯氨酸、丙二醛含量和抗氧化酶活性等耐盐相关生理生化指标。结果显示,转基因株系叶绿素含量下降0.09~0.29倍,而对照植株下降0.32倍;转基因株系脯氨酸含量升高1.2~4.2倍,对照植株的脯氨酸升高0.9倍;转基因株系丙二醛含量升高0.15~0.29倍,对照植株的丙二醛含量升高0.36倍;转基因株系超氧化物歧化酶活性升高0.20~0.25倍,对照植株的超氧化物歧化酶活性升高0.19倍;转基因株系过氧化物酶和过氧化氢酶活性分别是对照的1.6~5.6倍和1.2~1.3倍。转基因株系表现出耐盐植物的生理生化特性。

Abstract: With 300 mmol/L NaCl stress, the physiological and biochemical indexes, including chlorophyll, proline and MDA content, and antioxidase activity, of T1 transgenic alfalfa transformed with Rhizophora apiculata total DNA by the pollen-tube pathway, were investigated. The transgenic plantlets had a reduced chlorophyll content of 0.09-0.29 times, but the non-transgenic plant had 0.32 times. The proline content of transgenic plantlets was enhanced by 1.2 to 4.2 times, but for non-transgenic plant it was 0.9 times. The increased proportion of MDA content was 0.15-0.29 times in transgenic plantlets compared with 0.36 times for non-transgenic plant. However, the transgenic plantlets had increased SOD activity (0.20-0.25 times) compared with the non-transgenic plant (0.19 times). The POD and CAT activity of the transgenic plantlets were 1.6-5.6 times and 1.2-1.3 times respectively compared with non- transgenic plants. This suggested that the transgenic plantlets had the physiological and biochemical characteristics of salt tolerant plants.

中图分类号: