The activity of antioxidant defence enzymes in the mussel Mytilus galloprovincialis from the Adriatic Sea.
The activity of the antioxidant defence enzymes superoxide dismutase (SOD, EC 1.15.1.1), catalase (CAT, EC 1.11.1.6), glutathione peroxidase (GSH-Px, EC 1.11.1.9), glutathione reductase (GR, EC 1.6.4.2) and the phase II biotransformation enzyme glutathione-S-transferase (GST, EC 2.5.1.18) in whole mussels (Mytilus galloprovincialis) were studied. The mussels were collected in winter and in spring at two localities in the Adriatic Sea: Bar Port and Tivat Bay. Our results show that the activities of SOD, GSH-Px and GST were seasonally dependent with higher activities in winter. GR activity was also higher in winter, but only in mussels from Bar Port. In mussels from Tivat Bay, GR activity was lower in winter compared to spring. In addition, a decrease in CAT activity in mussels from Bar Port compared to those from Tivat Bay was found. It can be concluded that seasonal variations should be incorporated into interpretation of biomonitoring studies in mussels.
Borković
Slavica S
SS
Department of Physiology, Institute for Biological Research Sinisa Stanković, Bulevar despota Stefana 142, 11060 Belgrade, Serbia and Montenegro.
Saponjić
Jelena S
JS
Pavlović
Sladjan Z
SZ
Blagojević
Dusko P
DP
Milosević
Slavisa M
SM
Kovacević
Tijana B
TB
Radojicić
Ratko M
RM
Spasić
Mihajlo B
MB
Zikić
Radoslav V
RV
Saicić
Zorica S
ZS
D000818:Animals; D000975:Antioxidants / Q000032:analysis*; D002374:Catalase / Q000378:metabolism; D004784:Environmental Monitoring; D005979:Glutathione Peroxidase / Q000378:metabolism; D005980:Glutathione Reductase / Q000378:metabolism; D005982:Glutathione Transferase / Q000378:metabolism; D049878:Mytilus / Q000201:enzymology*; D012621:Seasons; D013482:Superoxide Dismutase / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000633:toxicity
D000975:Antioxidants; D014874:Water Pollutants, Chemical; D002374:Catalase; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase; D005980:Glutathione Reductase; D005982:Glutathione Transferase