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LIU Wei-Qun, SHI Yong-Chun, HU Ya-Jie, LIU Qiao-Zhen. The Tolerance to Abiotic Stresses Mediated by DREB-like Transcription Factors in Nicotiana tabacum[J]. Plant Science Journal, 2007, 25(3): 222-225.
Citation: LIU Wei-Qun, SHI Yong-Chun, HU Ya-Jie, LIU Qiao-Zhen. The Tolerance to Abiotic Stresses Mediated by DREB-like Transcription Factors in Nicotiana tabacum[J]. Plant Science Journal, 2007, 25(3): 222-225.
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The Tolerance to Abiotic Stresses Mediated by DREB-like Transcription Factors in Nicotiana tabacum

  • 1.

    Life Science College, Henan Agricultural University, Zhengzhou 450002, China

  • 2.

    National Key Lab of Tobacco Culture and Physiology and Chemistry, Zhengzhou 450002, China

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  • Received Date: November 02, 2006
  • Revised Date: December 25, 2006
  • Published Date: June 21, 2007
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  • The biological properties on tobacco with 35S:BnDREB1-5 transformation were analyzed which included the holding water capacity,the size and density of upper and lower epidermis stomata,the content of chlorophyll,and plasma membranes permeability after physical drought stressed 7 h.The results indicated that water-holding capacity of 35S:BnDREB1-5 transgenic tobacco leaves was 62% of that of wild-types.The upper epidermis stomata apparatus was bigger in transgenic tobacco than wild-type,but the opening of stoma was smaller in upper epidermis than wild-types.The stomata density was 1.5 times in wild-type leaves as large as in transgenic leaves.The content of chlorophyll was 29% higher in leaves of wild-type than in transgenic leaves,and the plasma membranes permeability were 1.4 times as much as in transgenic tobacco.
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