BECAS
LARES Betsabe AilÉn
artículos
Título:
Differential detoxifying responses to crude oil water-accommodated fraction in Hyallela curvispina individuals from unpolluted and contaminated sites
Autor/es:
DEL BRIO, J.; LARES, B.A.; PARRA-MORALES, L.B.; SANCHEZ, V.G.; MONTAGNA, C.M.; VENTURINO, A.
Revista:
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2019 vol. 70
ISSN:
1382-6689
Resumen:
Sublethal effects of water-accommodated fraction (WAF) from crude oil of Neuquénbasin, Northern Patagonia-Argentina, were examined on both antioxidant anddetoxification system of Hyalella curvispina adults collected in Los Barreales (LB) lakeand in an oil-polluted stream (DS). The effects of WAF exposure during 6, 24 and 48 hwere evaluated in the glutathione content (GSH) and glutathione S-transferase (GST),catalase (CAT) and cytochrome P450 (CYP450) activities. Populations from DS andLB showed not only different basal GSH content and enzyme activities but alsodifferent behavior to WAF exposure. LB population exposed to WAF showed asignificant increase in GSH content, CAT and CYP450 activities, compared to controlgroup. DS population presented high basal levels in CAT and CYP activity comparedwith LB population, but their response to WAF exposure was minor. Amphipods fromDS, chronically exposed to hydrocarbons, were adapted to their environment.
