| 干旱胁迫对烟草叶片丙二醛含量和细胞膜透性的影响 |
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| 引用本文： | 覃鹏,刘叶菊,刘飞虎. 干旱胁迫对烟草叶片丙二醛含量和细胞膜透性的影响[J]. 亚热带植物科学, 2004, 33(4): 8-10 |
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| 作者姓名： | 覃鹏 刘叶菊 刘飞虎 |
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| 作者单位： | 1. 华中农业大学 柑桔研究所, 湖北 武汉 430070;2. 海南大学 生命科学和农学院, 海南 海口 570228 |
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| 基金项目： | 云南省引进人才基金"转基因SOD高表达烟草利用价值研究"项目资助 |
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| 摘 要： | 对干旱胁迫下5个烟草品种(系)丙二醛含量和细胞膜透性进行测定表明,随着干旱胁迫的不断加重,烟草叶片丙二醛含量呈现先升后降的趋势,而细胞膜透性则表现为持续升高;复水后细胞膜透性能很快恢复正常,而丙二醛含量需要较长时间才略有恢复。细胞膜透性反应了烟草受干旱胁迫的程度,而丙二醛含量的稳定对烟草的抗旱性有重要意义。
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| 关 键 词： | 烟草 丙二醛 膜透性 干旱 |
| 文章编号： | 1009-7791(2004)04-0008-03 |
| 收稿时间： | 2004-07-14 |
Effects of Drought Stress on Malondiadehyde Content and Cell Membrane Permeability in Tobacco Leaves |
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| QIN Peng,LIU Ye-ju,LIU Fei-hu. Effects of Drought Stress on Malondiadehyde Content and Cell Membrane Permeability in Tobacco Leaves[J]. Subtropical Plant Science, 2004, 33(4): 8-10 |
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| Authors: | QIN Peng LIU Ye-ju LIU Fei-hu |
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| Affiliation: | 1. Baoshan Teachers'College, Baoshan 678000, Yunnan China;
2. College of Life Science, Yunnan University, Kunming 650091, Yunnan China |
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| Abstract: | The malondiadehyde content and cell membrane permeability of five pot-cultured tobacco cultivars and lines under drought stress were studied. The results showed that the malondiadehyde content increased at first, and then decreased with the increase of drought stress, while the cell membrane permeability kept increasing during drought stress; after rewatering the cell membrane permeability soon recovered while the malondiadehyde content needed a long time to restore. The cell membrane permeability responded to some extent of drought stress and the stabilization of malondiadehyde content might be meaningful to drought resistant of tobacco. |
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| Keywords: | tobacco malondiadehyde cell membrane permeability drought |
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