摘要
将牙鲆(Paralichthys olivaceus)置于不同浓度的Cu2+溶液中10d,测定其肌肉中过氧化氢酶(CAT)、谷胱甘肽过氧化物酶(GSH-PX)、超氧化物歧化酶(SOD)的活性。结果表明:随着Cu2+浓度的增高,CAT、SOD、GSH-PX的活性均表现为低浓度诱导,高浓度抑制;当处于低浓度Cu2+溶液中时,牙鲆肌肉中的SOD较CAT和GSH-PX敏感,因此其可作为水生生态系统中Cu2+低浓度暴露的一种生物检测指标。
The experiment was to study the effect of Cu^2+ on the antioxidative defence system in muscle of Paralichthys olivaceus, such as the activities of CAT, SOD and GSH-PX. After 10 days' exposure experiment, the results showed that the activities of CAT, SOD and GSH-PX were inducted in low concentration of Cu^2+ and inhibited in high concentration of Cu^2+ . These results also suggested SOD was more sensitive to low concentration of Cu^2+ than the others, and it could be served as bio-monitoring index of low concentration Cu^2+ exposure in aquatic ecosystem.
出处
《淡水渔业》
CSCD
北大核心
2007年第2期27-29,共3页
Freshwater Fisheries
基金
国家自然基金资助项目(30271029)