| 盐胁迫对转ZmPP2C2基因烟草和野生型烟草部分生理生化指标的影响 |
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| 引用本文： | 萧蓓蕾,刘丽霞,冯建英.盐胁迫对转ZmPP2C2基因烟草和野生型烟草部分生理生化指标的影响[J].安徽农业科学,2010,38(4):1834-1836. |
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| 作者姓名： | 萧蓓蕾 刘丽霞 冯建英 |
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| 作者单位： | 德州学院农学系,山东德州,253023;德州学院农学系,山东德州,253023;德州学院农学系,山东德州,253023 |
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| 摘 要： | 目的]探讨外源基因的导入对植物抗盐性的影响。方法]以转Zm PP2C2基因烟草和野生型烟草为材料,研究盐胁迫对这2种类型烟草叶片光合气体交换参数、叶绿素荧光特性及抗氧化酶活性的影响。结果]在相同的盐浓度（150mmol/L NaCl）下,随着处理时间的延长,2种烟草的叶片净光合速率和气孔导度均呈下降趋势;最大光化学效率下降,但转基因烟草叶片降幅较小;SOD的活性均是先上升后下降,但转基因烟草下降幅度小;POD的活性、丙二醛的含量也均呈上升趋势,但转基因烟草POD活性的增加明显高于野生型烟草,而丙二醛的含量较野生型烟草低。结论]盐胁迫下,转基因烟草叶片PSⅡ受伤害较轻,具有较高的抗氧化酶活性,其膜脂过氧化程度低于野生型烟草。
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| 关 键 词： | 烟草 盐胁迫 生理生化指标 |
Effects of Salt Stress on Some Physiological and Biochemical Indices of Transgenic Tobacco Harboring ZmPP2C2 and Wild Tobacco |
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| XIAO Bei-lei et al.Effects of Salt Stress on Some Physiological and Biochemical Indices of Transgenic Tobacco Harboring ZmPP2C2 and Wild Tobacco[J].Journal of Anhui Agricultural Sciences,2010,38(4):1834-1836. |
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| Authors: | XIAO Bei-lei |
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| Institution: | Agronomy Department;Dezhou University;Dezhou;Shandong 253023 |
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| Abstract: | Objective]To discuss the effects of exogenous gene introduction on the salt resistance of plants.Method]Under salt stress,the photosynthetic gas exchange,chlorophyll fluorescence and activity of antioxidant enzymes of leaves were determined in the transgenic tobacco harboring ZmPP2C2 and the wild tobacco.Result]Under salt stress(150 mmol/L NaCl),the net photosynthetic rate(Pn),stomatal conductance(Gs) and maximum photochemical efficiency of PSII(Fv/Fm) all decreased with the salt treating time in both th... |
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| Keywords: | Tobacco Salt stress Physiological and biochemical indices |
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