苯并(a)芘对大弹涂鱼肝脏过氧化氢酶活性的影响  

Effects of Catalase Activities in the Liver of Boleophthalmus Pectinirostris with Benzo(a) Pyrene Exposure.

作　　者：冯涛[1] 郑微云[1] 郭祥群[2] 陈荣[1] 

机构地区：[1]厦门大学环境科学研究中心,厦门361005 [2]厦门大学化学系,厦门361005

出　　处：《生态学杂志》2001年第5期73-75,共3页Chinese Journal of Ecology

基　　金：高等学校博士学科点专项科研基金项目 (498760 2 9)资助

摘　　要：Changes of catalase(CAT) activities in the liver of Boleophthalmus pectinirostris with benzo(a)pyrene(BaP) exposure are detected in experimental condition. The results show that there is no significant changes for CAT activities in control group and 0.05mg·L -1 BaP group with prolonged exposure ( P >0.05), whereas they are depressed significantly at concentration of 0.5mg·L -1 ( P ≤0.05). In 3 days exposure, CAT activities decrease significantly with the increase of BaP concentration ( P ≤0.05). This might indicate that exposure to higher BaP concentrations might have toxic effect to fishes. The activities of CAT increase significantly to control level after BaP was removed. It turned out that the physiological modulatary mechanism still existed in the liver of Boleophthalmus pectinirostris . All the results show that CAT activity might be suitable to be the bioindicator of BaP exposure.Changes of catalase(CAT) activities in the liver of Boleophthalmus pectinirostris with benzo(a)pyrene(BaP) exposure are detected in experimental condition. The results show that there is no significant changes for CAT activities in control group and 0.05mg·L -1 BaP group with prolonged exposure ( P >0.05), whereas they are depressed significantly at concentration of 0.5mg·L -1 ( P ≤0.05). In 3 days exposure, CAT activities decrease significantly with the increase of BaP concentration ( P ≤0.05). This might indicate that exposure to higher BaP concentrations might have toxic effect to fishes. The activities of CAT increase significantly to control level after BaP was removed. It turned out that the physiological modulatary mechanism still existed in the liver of Boleophthalmus pectinirostris . All the results show that CAT activity might be suitable to be the bioindicator of BaP exposure.

关 键 词：苯并(A)芘 大弹涂鱼 肝脏 过氧化氢酶 酶活性 水污染 毒理 

分 类 号：Q55[生物学—生物化学]