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Open Access. Powered by Scholars. Published by Universities.®

Biology

Journal

2012

Antioxidant enzyme

Articles 1 - 2 of 2

Full-Text Articles in Life Sciences

Antioxidant Responses In Mesopodopsis Zeylanica At Varying Salinity To Detect Mercury Influence In Culture Ponds, Xivanand Narayan Verlecar, Priya Brata Das, Karmabeer Jena, Dusmant Maharana, Somshekher Raghoba Desai Jan 2012

Antioxidant Responses In Mesopodopsis Zeylanica At Varying Salinity To Detect Mercury Influence In Culture Ponds, Xivanand Narayan Verlecar, Priya Brata Das, Karmabeer Jena, Dusmant Maharana, Somshekher Raghoba Desai

Turkish Journal of Biology

Antioxidant responses in the estuarine mysid, Mesopodopsis zeylanica, were used to assess mercury (Hg) metal contamination in relation to salinity. Natural mysids acclimatized at 5 psu were subjected to laboratory exposures of 5, 15, and 25 psu salinity singly and under the sublethal Hg concentration of 5 µg/L (one-fifth of 24 h LC_{50} value). Lipid peroxidation in the test species increased with salinity variation from 5 to 15 psu and retained the same up to 25 psu with no change after Hg addition. CAT increased significantly from 5 to 15 psu before Hg influence, and GST increased after addition of …


Antioxidant Enzymes And Gst Activity In Natural Populations Of Holandriana Holandrii From The Bosna River, Jelena Vrankovic, Svetlana Labus-Blagojevic, Bela Csanyi, Jarmila Makovinska, Olga Cvetkovic, Zoran Gacic, Dusko Blagojevic, Momir Paunovic Jan 2012

Antioxidant Enzymes And Gst Activity In Natural Populations Of Holandriana Holandrii From The Bosna River, Jelena Vrankovic, Svetlana Labus-Blagojevic, Bela Csanyi, Jarmila Makovinska, Olga Cvetkovic, Zoran Gacic, Dusko Blagojevic, Momir Paunovic

Turkish Journal of Biology

Specimens of the freshwater snail Holandriana holandrii affected by different levels of contamination were collected from 3 sites within the Bosna River Basin, i.e. Visoko, Doboj, and Modrica. The activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), and glutathione-S-transferase (GST) were investigated in order to understand their variation with respect to the pollution status of the sampling locations. The results revealed a significant increase in CAT, GPx, and GST activities in the snails collected from Modrica, suggesting that the animals at this location are exposed to a higher level of oxidative …