摘要
通过栽培污灌试验 ,研究了小麦幼苗在铅协迫下的脂质过氧化 ,膜系统伤害 ,叶绿素含量的变化关系 ,试验结果表明 :随铅处理浓度的增加 ,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 ,由此揭示了铅对小麦幼苗危害与自由基代谢平衡的关系。
Through cultivating and sewage irrigating test, the correlation among lipid peroxidation, destruction of membrane system and chlorophyll's changes during lead stress is studied with wheat seedlings, With the increasing intensity of lead stress, POD activity lowers, MDA content increased obviously, electrolytes in cells leaked. These results indicate that the damage of membrane system and imbalance of free radical metabolism might be as a result of the increase of membrane lipid peroxidation.
出处
《河南科学》
2001年第2期209-211,共3页
Henan Science
