华北农学报 ›› 2012, Vol. 27 ›› Issue (3): 186-190. doi: 10.3969/j.issn.1000-7091.2012.03.036

所属专题: 烟草 生物技术

• 论文 • 上一篇    下一篇

PuP5CS基因烟草对低温胁迫的生理响应

徐博1, 任伟2, 徐安凯2, 王志锋2, 孙启忠1   

  1. 1. 中国农业科学院草原研究所, 内蒙古呼和浩特 010010;
    2. 吉林省农业科学院, 吉林公主岭 136100
  • 收稿日期:2012-02-20 出版日期:2012-06-28
  • 通讯作者: 孙启忠(1960-), 男, 内蒙古五原人, 研究员, 博士生导师, 主要从事退化草地生态及牧草生产技术研究。
  • 作者简介:徐博(1983-), 男, 吉林公主岭人, 博士, 主要从事牧草分子生物学研究。
  • 基金资助:
    国家牧草产业技术体系

Physiological Responses to Chilling Stress in Transplastomic Tobacco with PuP5CS Gene

XU Bo1, REN Wei2, XU An-kai2, WANG Zhi-feng2, SUN Qi-zhong1   

  1. 1. Grassland Research Institut Chinese Academy of Agricultural Sciences, Huhhot 010010, China;
    2. Jilin Academy of Agricultural Sciences, Gongzhuling 136100, China
  • Received:2012-02-20 Published:2012-06-28

摘要: 以朝鲜碱茅PuP5CS基因(HQ637435)为目的基因,构建了PuP5CS基因的正义表达载体和反义表达载体,通过农杆菌介导的叶盘法转化烟草,研究了PuP5CS基因对烟草耐寒性的影响。结果显示,低温胁迫下,正义转基因烟草体内可溶性糖、脯氨酸、叶绿素a和叶绿素b的含量均显著高于野生型烟草,丙二醛含量增幅显著低于野生型烟草,提高了转基因烟草的抗寒性,而反义转基因烟草体内各项生理指标变化不明显。

关键词: P5CS, 转基因, 烟草, 抗寒性

Abstract: To identify the responses to Chilling Stress in transplastomic tobacco with PuP5CS gene,sense and?antisense plant expression vector of PuP5CS gene were constructed and introduced into tobacco via Agrobacterium?tumefaciens. For the pBI121-PuP5CS + transgenic plants,the levels of soluble suger,proline,chlorophyll a and chlorophyll b were significantly higher than wild-type tobacco,the level of malondialdehyde(MDA)was significantly?lower than wild-type under the chilling stress,improved it's cold resistance. But for the pBI121-PuP5CS-transgenic?plants,the levels of them were not significant.?

Key words: P5CS, Transgenic plants, Tobacco, Chilling stress

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引用本文

徐博, 任伟, 徐安凯, 王志锋, 孙启忠. 转PuP5CS基因烟草对低温胁迫的生理响应[J]. 华北农学报, 2012, 27(3): 186-190. doi: 10.3969/j.issn.1000-7091.2012.03.036.

XU Bo, REN Wei, XU An-kai, WANG Zhi-feng, SUN Qi-zhong. Physiological Responses to Chilling Stress in Transplastomic Tobacco with PuP5CS Gene[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(3): 186-190. doi: 10.3969/j.issn.1000-7091.2012.03.036.

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