| 铅对玉米幼苗影响机制的初步研究 |
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| 引用本文： | 赵士禹,姚民昌,赵树仁.铅对玉米幼苗影响机制的初步研究[J].辽宁师范大学学报(自然科学版),1994(3). |
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| 作者姓名： | 赵士禹 姚民昌 赵树仁 |
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| 作者单位： | 大连市甘井子区环保局，辽宁师范大学生物系 |
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| 摘 要： | 通过栽培污灌试验，研究了玉米幼苗铅胁迫下的脂质过氧化、膜系统伤害、叶绿素含量的变化关系．试验结果表明：随铅处理强度的增加，过氧化物酶（ＰＯＤ）活性下降，脂质过氧化作用加强，膜透性增加，细胞内的电解质大量外渗，叶绿素含量下降．由此初步地揭示了铅对玉米幼苗危害与自由基代谢平衡的关系．
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| 关 键 词： | 玉米，脂质过氧化，膜伤害 |
A PRELIMINARY STUDY ON THE EFFECT OF LEAD ON CORN SEEDLING |
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| Zhao Shiyu.A PRELIMINARY STUDY ON THE EFFECT OF LEAD ON CORN SEEDLING[J].Journal of Liaoning Normal University(Natural Science Edition),1994(3). |
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| Authors: | Zhao Shiyu |
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| Abstract: | he correlation among lipid peroxidation.destruction of membrane system and chlorophyll a changes during lead stress is sudied with corn seedlings.With the moresing intensity of lead stress,POD activity lowers MDA content in=creased obviously,electrolytes in cells leaked.These results indicate that the damage of membrane system might be as a result of the increase of membranelipid peroxidation. |
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| Keywords: | corn foliage lipid peroxidation membrane damage |
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