FIG. 1.

Expression of catP during the growth of C. cellulolyticum ATCC 35319(pPSVthl). The optical density at 600 nm (OD₆₀₀) (○) was used to monitor the growth in basal medium supplemented with 2 g liter⁻¹ cellobiose. CAT activities (▴) in soluble extracts were measured as described in Materials and Methods. The symbols indicate the means of three experiments, and the error bars indicate the standard deviations.