Effect of Salinity on Catalase and Peroxidase Activity of Chlorella vulgaris Beijerink

In the present work, the effect of NaCl on catalase and peroxidase activity of Chlorella vulgaris Beijerink was investigated The C. vulgaris was treated with different concentrations of NaCl viz., 0.1, 0.2, 0.3 and 0.4M besides control over 10, 20 and 30 days. The results exhibited increase in the catalase and peroxidase activity up to 0.3 M, whereas it was decreased at 0.4M for all the cultures over all the durations. The study revealed that, increased activity of catalase and peroxidase was an adaptive mechanism to reduce the H2O2 and offer protection against oxidative damage and tolerance against salt.