FIG. 2.

Effect of pH on enzyme activity of the GST (A) and the dehydrogenase (B) of Rhodococcus sp. strain AD45. Activity was determined at different pH values in 50 mM potassium phosphate (●), 50 mM Tris-HCl (■), 50 mM sodium carbonate (▴), or 50 mM glycine-NaOH.