1. Differential detoxifying responses to crude oil water-accommodated fraction in Hyallela curvispina individuals from unpolluted and contaminated sites.
- Author
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Del Brio J, Lares BA, Parra-Morales LB, Sanchez VG, Montagna CM, and Venturino A
- Subjects
- Amphipoda metabolism, Animals, Catalase metabolism, Cytochrome P-450 Enzyme System metabolism, Glutathione metabolism, Glutathione Transferase metabolism, Water, Water Pollution, Chemical adverse effects, Amphipoda drug effects, Hydrocarbons toxicity, Petroleum toxicity, Water Pollutants, Chemical toxicity
- Abstract
Sublethal effects of water-accommodated fraction (WAF) from crude oil of Neuquén basin, Northern Patagonia-Argentina, were examined on both antioxidant and detoxification system of Hyalella curvispina adults collected in Los Barreales (LB) lake and in an oil-polluted stream (DS). The effects of WAF exposure during 6, 24 and 48 h were evaluated in the glutathione content (GSH) and glutathione S-transferase (GST), catalase (CAT) and cytochrome P450 (CYP450) activities. Populations from DS and LB showed not only different basal GSH content and enzyme activities but also different behavior to WAF exposure. LB population exposed to WAF showed a significant increase in GSH content, CAT and CYP450 activities, compared to control group. DS population presented high basal levels in CAT and CYP activity compared with LB population, but their response to WAF exposure was minor. Amphipods from DS, chronically exposed to hydrocarbons, were adapted to their environment., (Copyright © 2019 Elsevier B.V. All rights reserved.)
- Published
- 2019
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