ANTIOXIDANT SYSTEM OF RAPANA VENOSA (VALENCIENNES, 1846) REPRESENTATIVES, THE INHABITANTS OF DIFFERENT WATER AREAS OF THE ODESSA BAY ( THE BLACK SEA)

Abstract

Have been studied the antioxidant system in males and females of the introduced species of the Black Sea gastropod Rapana venosa, dwelling in two different water areas of the Odesa bay. One of the zone distinguishes from another more expressed periodic storm sewer variation in water quality (salinity, degree, chemical pollutants, etc.) due to the presence in its area. Another have characterized by a lack of nearby industrial facilities and municipal and has more stable environmental situation. In esophageal (leybleynov) rapan gland there were determined activity of superoxide dismutase (SOD), catalase, glutathione peroxidase (GP), glutathione reductase (GR) and the content of reduced glutathione (GSH). The degree of oxidative damage of biopolymers evaluated by the level of malondialdehyde (MDA). We haven’t found any gender differences in investigated rapanas in content of MDA – the integral index of lipid peroxidation (LPO), the content of GSH and the activity of antioxidant enzymes, except catalase and SOD. MDA content and SOD activity in the esophageal gland of rapan collected in the reservoir as higher, and the content of GSH and the activity of GP – lower than rapan living in more cleaning area. It is concluded that high adaptive capacity of R. venosa and the importance of studying the role of genetic and environmental factors in the differential display of some rapan adaptation reactions in different areas of the Black Sea.