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

Abstract

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.

Cultivation and biochemical characterization of isolated Sicilian microalgal species in salt and temperature stress conditions

“…As regards temperature, in the present work the stress caused by the high temperature tended to decrease the lipid content in all the Chlorella strains; this result is confirmed by several studies showing that the cultivation of Chlorella vulgaris at a temperature of 25° C led to a lipid content larger than those cultivated at 30° C. [46,52,53]. A slightly different behaviour was observed in D. viridis, where, at LS conditions, similar lipid contents were obtained at low and high temperature.…”