Indices of Oxidative Stress in Zebra Mussel Dreissena polymorpha (Pallas, 1771) as Biomarkers for Chronic Anthropogenic Pollution Assessment in Different Parts of the Rybinsk Reservoir
Y. S. KLIMOVA, G. M. CHUIKO, M. V. GAPEEVA, D. S. PESNYA
Papanin Institute of Biology of Inland Waters, RAS, 1525742, Yaroslavskaya Oblast, Nekouzsky Region, s. Borok
Keywords: тяжелые металлы, биомаркеры, Dreissenа polymorpha, каталаза, глутатион-S-трансфераза, восстановленный глутатион, малоновый диальдегид, heavy metal, biomarkers, Dreissenа polymorpha, catalase, glutathione-S-transferase, glutathionreductase, malondialdehyde glutathione
Abstract
The following biomarkers of oxidative stress: catalase (CAT), glutathione-S-transferase (GST), glutathione and reductase (GR) activities as well as malondialdehyde and reduced glutathione content and heavy metal concentrations (HM) were studied in Dreissenа polymorpha tissues. Mussels were collected on three sites located in the Rybinsk reservoir differing in the levels of anthropogenic load: more polluted sites 1 and 2 and relatively clean site 3. Mussels from sites 1 and 2 had higher concentrations of HM and their response to pollutants’ action was manifested in increased processes of LPO, activation of CAT and elevated level of GHS.
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