| 镉对小麦细胞膜脂过氧化的效应 |
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| 引用本文： | 罗立新. 镉对小麦细胞膜脂过氧化的效应[J]. 河南科学, 1999, 0(Z1) |
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| 作者姓名： | 罗立新 |
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| 作者单位： | 南开大学生物系 |
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| 摘 要： | 镉胁迫使小麦叶中活性氧自由基清除系统的功能紊乱，超氧阴离子自由基（Ｏ２）和Ｈ２Ｏ２积累。丙二醛（ＭＤＡ）含量升高，ＳＨ基含量下降，电解质泄漏加剧，显示发生膜脂过氧化。同时组织自动氧化速率显著提高，表明机体总的防御活性氧自由基的能力降低。推测小麦镉伤害过程中，活性氧自由基代谢失衡造成的膜脂过氧化起着重要作用。
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| 关 键 词： | 镉 小麦 膜脂过氧化 |
EFFECTS OF CADMIUM STRESS ON LIPID PEROXIDATION OF WHEAT LEAVES |
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| Luo Lixin. EFFECTS OF CADMIUM STRESS ON LIPID PEROXIDATION OF WHEAT LEAVES[J]. Henan Science, 1999, 0(Z1) |
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| Authors: | Luo Lixin |
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| Abstract: | Wheat germinating seedlings (Tritium aestivum) were treated with different concentrations of cadmium acetate. Under the cadmium strees, accumulations of O 2, H 2O 2 and MDA in wheat leaves significantly enhanced, the content of SH group dropped, and the electrolyte leakage outward leave cells was much high. The rate of tissue autoxidation in leaves was higher than that of control, which indicated lipid peroxidation of cellular membrane was stimulated by endogenous active oxygen radicals. |
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| Keywords: | Cadmium Wheat Lipid peroxidation |
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