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园艺学报 ›› 2013, Vol. 40 ›› Issue (4): 713-.

• 观赏植物 • 上一篇    下一篇

转沙冬青锌指蛋白基因AmZFPG 烟草非生物胁迫抗性分析

智冠华,史军娜,赵晓鑫,刘胜利,陈玉珍,卢存福   

  1. (北京林业大学生物科学与技术学院,林木育种国家工程实验室,教育部林木花卉遗传育种重点实验室,北京
    100083)
  • 出版日期:2013-04-25 发布日期:2013-04-25

Overexpression of a Zinc-finger Protein Gene AmZFPG from Ammopiptanthus mongolicus Confers Tolerance to Cold , Drought and Salt Stress in Transgenic Tobacco

 ZHI  Guan-Hua, SHI  Jun-Na, ZHAO  Xiao-Xin, LIU  Sheng-Li, CHEN  Yu-Zhen, LU  Cun-Fu   

  1. (College of Biological Sciences and Biotechnology,National Engineering Laboratory for Tree Breeding,Key Laboratory
    of Genetics and Breeding in Forest Trees and Ornamental Plants of Education Ministry,Beijing Forestry University,Beijing
    100083,China)
  • Online:2013-04-25 Published:2013-04-25

摘要: 分析了沙冬青(Ammopiptanthus mongolicus)锌指蛋白基因AmZFPG 在非生物胁迫下的表达
特性,结果显示AmZFPG 受低温、干旱、高盐胁迫诱导表达,表明该蛋白参与多种胁迫相关的信号转导
和应答反应。为进一步探索AmZFPG 的功能,构建了真核表达载体AmZFPG-pCAMBIA2300,将该基因
转入烟草(Nicotiana tabacum L.),对转基因烟草T1 代进行非生物胁迫分析,结果显示,转基因烟草的耐
寒性、耐旱性、耐盐性均获得了提高。

关键词: 沙冬青, AmZFPG 基因, 转基因烟草, 非生物胁迫AmZFPG 基因, 转基因烟草, 非生物胁迫

Abstract: The characterization of a novel gene designated AmZFPG from Ammopiptanthus
mongolicus was described here. AmZFPG encodes a zinc-finger protein that is induced after different types
of stresses,namely cold,desiccation,and salt. Overexpression of the gene in transgenic tobacco conferred
tolerance to cold,dehydration,and salt stress at the seed-germination/seedling stage as reflected by the
percentage of germination,the fresh weight of seedlings,and their growth pattern. Thus,AmZFPG seems
to be an important determinant of stress response.

Key words: Ammopiptanthus mongolicus, AmZFPG gene, transgenetic tobacco, abiotic stress

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