| 两种有机磷农药对沼水蛙蝌蚪抗氧化系统及MDA浓度的影响 |
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| 引用本文： | 钟碧瑾,姚丹,刘娟娟,陈琴琴,耿宝荣.两种有机磷农药对沼水蛙蝌蚪抗氧化系统及MDA浓度的影响[J].福建师范大学学报(自然科学版),2009,25(2). |
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| 作者姓名： | 钟碧瑾 姚丹 刘娟娟 陈琴琴 耿宝荣 |
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| 作者单位： | 1. 福建师范大学生命科学学院,福建,福州,350108
2. 沈阳市艺术幼儿师范学校,辽宁,沈阳,110015 |
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| 基金项目： | 福建省科技厅基金，福建省自然科学基金 |
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| 摘 要： | 研究了两种有机磷农药三唑磷和乙酰甲胺磷对沼水蛙蝌蚪超氧化物歧化酶(SOD)、过氧化氢酶(CAT)活性及脂质过氧化产物丙二醛(MDA)浓度的影响.结果表明:在不同质量浓度(0.2,0.4,1.2,2.0,2.8 mg/L)的三唑磷染毒后,蝌蚪的SOD活性开始被激活,48 h或72 h后活性逐渐达到最高值;随着染毒时间的延长,其活性则被抑制而降低;CAT活性和MDA浓度都随着三唑磷质量浓度的增加和处理时间的延长出现极显著的提高,且MDA浓度与三唑磷质量浓度呈现显著的剂量效应关系.在不同质量浓度(15.0,22.5,30.0,37.5,45.0 mg/L)的乙酰甲胺磷染毒后,蝌蚪的SOD活性在较短的时间(24 h)内出现最高值,随后降低至与对照组相当的水平;随着染毒时间的延长,CAT活性逐渐被抑制而呈减低的趋势,而MDA浓度明显呈现出由低到高的变化过程.两种农药都会不同程度改变沼水蛙蝌蚪抗氧化防御系统,造成毒害作用.
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| 关 键 词： | 三唑磷 乙酰甲胺磷 沼水蛙蝌蚪 |
Effects of Two Organophosphorus Insecticides on the Antioxidant System and MDA Content of Hylarana guentheri Tadpoles |
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| ZHONG Bi-jin,YAO Dan,LIU Juan-juan,CHEN Qin-qin,GENG Bao-rong.Effects of Two Organophosphorus Insecticides on the Antioxidant System and MDA Content of Hylarana guentheri Tadpoles[J].Journal of Fujian Teachers University(Natural Science),2009,25(2). |
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| Authors: | ZHONG Bi-jin YAO Dan LIU Juan-juan CHEN Qin-qin GENG Bao-rong |
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| Institution: | 1.College of Life Sciences;Fujian Normal University;Fuzhou 350108;China;2.Shenyang Art and Children Normal School;Shenyang 110015;China |
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| Abstract: | The effects of two organophosphorus insecticides(triazophos and acephate) on the superoxide dismutase(SOD) activities,catalase(CAT) activities and malondialdehyd(MDA) content of Hylarana guentheri tadpoles were investigated.The results showed that the SOD activities of all tadpoles exposed to different concentrations of triazophos(0.2,0.4,1.2,2.0,2.8 mg/L),were obviously activated and reached the highest level at 48 h or 72 h,and then were inhibited and decreased with the prolonged exposure.Both of the CAT ... |
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| Keywords: | SOD CAT MDA |
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