NDLI: Toxic Effects of Copper on Antioxidative and Metabolic Enzymes of the Marine Gastropod, Onchidium struma

Content Provider	Springer Nature Link
Author	Li, Xiao bo Hou, Xue li Mao, Qian Zhao, Yun long Cheng, Yong xu Wang, Qun
Copyright Year	2009
Abstract	The goals of this study were to evaluate the acute and sublethal toxicity of copper (Cu2+) on the marine gastropod, Onchidium struma, and to examine the utility of enzymatic parameters as indicators of Cu2+ exposure. In a semistatic renewal test, the 96-hour median lethal concentration of Cu2+ for O. struma, 74.80 mg/L, was higher than that for other intertidal species. The activities of the antioxidative enzymes, Cu/Zn superoxide dismutase (Cu/Zn-SOD) and catalase (CAT), and those of the metabolic enzymes-acid phosphatase (ACP), alkaline phosphatase (AKP), glutamic-oxaloacetic transaminase (GOT), and glutamic-pyruvic transaminase (GPT) -in both hepatopancreas and muscle were determined after a 1-week exposure to Cu2+ (range 1.35 to 4.20 mg/L). The activities of both Cu/Zn-SOD and CAT were higher in hepatopancreas than muscle. In addition, there was a negative correlation between Cu2+ concentration and Cu/Zn-SOD activity in hepatopancreas, whereas a positive correlation was observed for CAT activity. Concentration-dependent changes in ACP and AKP activity showed a similar trend in hepatopancreas, increasing then decreasing and, finally, a slight increase. In contrast, ACP activity was positively correlated with Cu2+ across the concentration range tested. In both hepatopancreas and muscle, both GOT and GPT were activated by lower concentrations of Cu2+ and inhibited at higher concentrations.
Starting Page	776
Ending Page	784
Page Count	9
File Format	PDF
ISSN	00904341
Journal	Archives of Environmental Contamination and Toxicology
Volume Number	56
Issue Number	4
e-ISSN	14320703
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-02-13
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Environmental Monitoring/Analysis Soil Science & Conservation Environmental Chemistry Environmental Health Pollution Ecotoxicology
Content Type	Text
Resource Type	Article
Subject	Pollution Health, Toxicology and Mutagenesis Medicine Toxicology

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