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[1]魏炜,刘克武,赵欣平,等.水体中Cu2+和Cd2+污染对育珠蚌肝脏中3种酶的影响[J].应用与环境生物学报,2004,10(02):170-173.
 WEI Wei,et al..Effect of Cu2+ and Cd2+ on three enzymes in oyster liver[J].Chinese Journal of Applied & Environmental Biology,2004,10(02):170-173.
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水体中Cu2+和Cd2+污染对育珠蚌肝脏中3种酶的影响()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
10卷
期数:
2004年02期
页码:
170-173
栏目:
综述
出版日期:
2004-04-25

文章信息/Info

Title:
Effect of Cu2+ and Cd2+ on three enzymes in oyster liver
作者:
魏炜刘克武赵欣平石安静喻东
Author(s):
WEI Weiet al.
(College of Life Sciences, Sichuan University, Chengdu610064, China)
关键词:
关键词 育珠蚌Cu2+ Cd2+同工酶 酯酶 过氧化物酶 超氧化物歧化酶
Keywords:
Keywords oyster Cu2+ Cd2+ isoenzyme EST POD SOD
摘要:
摘要选取两种水体中常见的重金属污染离子(Cu2+ 和Cd2+),按一定的浓度梯度配制成溶液,并以此溶液饲养育珠蚌一定时间后,测定两种离子对育珠蚌肝脏中的酯酶(EST)、过氧化物酶(POD)、超氧化物歧化酶(SOD)活性的影响.结果表明,低浓度的重金属离子可以诱导3种酶活性的升高,而高浓度的离子则抑制酶的活性.同工酶电泳检测显示,高浓度的离子导致EST同工酶谱减少一条谱带,低浓度的离子则诱导产生新的SOD同工酶类型,但两种离子均未对POD同工酶谱产生影响. 图6 参10
Abstract:
Abstract The effects of two heavy metal ions (Cu2+ and Cd2+ ) on the activities of EST, POD, SOD in oyster liver were studied. The results showed that low concentrations (0.25 mg L-1 and 0.5 mg L-1) of the ions could improve the activities of the three enzymes, but high concentrations (0.75 mg L-1 and 1 mg L-1) could inhibit the activities. Research of the two ions` effect on the three enzymes` isoenzyme implied that high concentration of ions could make ESTisoenzyme lose one band, but low concentration had no effect. The effect on SODisoenzyme was opposite. High concentration made no effect, while low one could induce new kind of SODisoenzyme. But the two heavy ions could not affect PODisoenzyme.These results revealed that both the enzyme activities and the kinds of isoenzymes would obviously change following the alteration of the ion concentration. Fig 6, Ref 10
更新日期/Last Update: 2004-04-22