Oxidative stress induced by copper in sunflower plants

被引：0
|
作者：
García, A [1 ]
Baquedano, FJ [1 ]
Navarro, P [1 ]
Castillo, FJ [1 ]
机构：
[1] Univ Publ Navarra, Dept Ciencias Medio Nat, E-31006 Pamplona, Spain
来源：
FREE RADICAL RESEARCH | 1999年 / 31卷
关键词：
copper; toxicity; lipid peroxidation; antioxidative enzymes;
D O I：
暂无
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The toxic effect of copper was evaluated in sunflower plants by means of root elongation, lipid peroxidation and antioxidative enzyme activities. Plants were grown under controlled environmental conditions in hydroponic culture for two weeks and exposed to different copper concentrations for an additional week. Determinations were performed in both roots and leaves. From the results of the root elongation test, a copper concentration of 10 mu M was found to be toxic for sunflower plants causing lipid peroxidation and, thus, oxidative stress. Antioxidative enzymes (peroxidase and superoxide dismutase) responded at lower, nontoxic copper concentrations.
引用
收藏
页码：S45 / S50
页数：6
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