期刊
AQUATIC TOXICOLOGY
卷 52, 期 3-4, 页码 189-203出版社
ELSEVIER
DOI: 10.1016/S0166-445X(00)00145-4
关键词
antioxidant parameters; polycyclic aromatic hydrocarbons (PAHs); benzo[a]pyrene (B[a]P); mussels (Perna viridis); field transplant
Local mussels, Perna viridis, were transplanted from a relatively clean site to various polluted sites in Hong Kong. After a 30-day field exposure, different antioxidant parameters including glutathione S transferase (GST), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), NADPH DT-diaphorase (DT-d), glutathione (GSH) and lipid peroxidation were quantified, and tissue concentrations of benzo[a]pyrene (B[a]P) as well as a total of five polycyclic aromatic hydrocarbons (PAHs) with potential carcinogenicity were determined for individual mussels. Results indicated that: (1) tissue concentrations of B[a]P and total PAHs from the same site were highly variable; (2) gill SOD, DT-d and lipid peroxidation showed no response to tissue pollutants; (3) the majority of the antioxidant parameters were induced by increasing tissue pollutant concentrations; and (4) amongst the various parameters, oxyradical scavenger GSH best correlated with tissue concentrations of pollutants. (C) 2001 Elsevier Science B.V. All rights reserved.
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