| 六价铬对草鱼肝脏SOD和GSH-Px活力的影响 |
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| 引用本文： | 耿晓修,丁诗华,孙翰昌,廖品福,张涛.六价铬对草鱼肝脏SOD和GSH-Px活力的影响[J].西南农业大学学报,2006,28(2):333-336. |
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| 作者姓名： | 耿晓修 丁诗华 孙翰昌 廖品福 张涛 |
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| 作者单位： | 西南大学水产与水文学院水产生物技术实验室 重庆400716 |
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| 基金项目： | 重庆市自然科学基金资助项目（9121） |
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| 摘 要： | 采用灌喂法,研究不同剂量六价铬在48 h内对草鱼肝脏超氧化物歧化酶(SOD)和谷胱甘肽过氧化物酶(GSH-Px)活力的影响。结果显示,用较低剂量的六价铬处理时,草鱼肝脏SOD和GSH-Px的活力均出现不同程度的、短暂的诱导效应;当六价铬剂量较高时,SOD和GSH-Px的活力并未出现明显的诱导现象,2种酶的活力均随六价铬剂量的增加而下降。由此可见,2种酶的活力变化与六价铬剂量具有一定的相关性。此外,这2种酶对六价铬的敏感性也存在一定程度的差异,其中SOD对六价铬较敏感,更易受六价铬的影响。
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| 关 键 词： | 六价铬 草鱼 谷胱甘肽过氧化物酶 超氧化物歧化酶 |
| 文章编号： | 1000-2642（2006）02-0333-04 |
| 收稿时间： | 10 24 2005 12:00AM |
| 修稿时间： | 2005-10-24 |
EFFECTS OF HEXAVALENT CHROMIUM ON SOD AND GSH-Px ACTIVITIES IN LIVER OF CTENOPHARYNGODON IDELLUS |
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| GENG Xiao - xiu, DING Shi - hua , SUN Han - chang, LIAO Pin - fu, ZHANG Tao.EFFECTS OF HEXAVALENT CHROMIUM ON SOD AND GSH-Px ACTIVITIES IN LIVER OF CTENOPHARYNGODON IDELLUS[J].Journal of Southwest Agricultural University,2006,28(2):333-336. |
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| Authors: | GENG Xiao - xiu DING Shi - hua SUN Han - chang LIAO Pin - fu ZHANG Tao |
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| Institution: | Laboratory of Aquatic Bioengineering , Southwest University, Chongqing 400716, China |
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| Abstract: | Samples of grass carp(Ctenopharyngodon idellus) were administered with different dosages of Cr(VI) by enteric feeding and observed for 48 h thereafter.The activities of SOD(superoxide dismutase) and GSH-Px(glutathione peroxidase) were found to undergo a transient increase after lower dosage administration of Cr(VI).In contrast,administration of higher dosages resulted in a decrease in SOD and/or GSH-Px activity.It is thus concluded that the Cr(VI)-induced changes in enzyme activity is dosage-dependent.SOD was more sensitive to Cr(VI) than GSH-Px. |
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| Keywords: | Cr~(6 ) grass carp(Ctenopharyngodon idellus) glutathione peroxidase superoxide dismutase |
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