FIG. 2.
CAT activities in strains 824(pCATspo) and 824(pCATP). CAT activities are shown in strain 824(pCATspo)(▪) and the control strain 824(pCATP)(×). The solvent concentrations for the 824(pCATspo) fermentations are represented by the following symbols: acetone (▴) and butanol (♦). Data are means ± 1 standard error. For acetone and butanol, n = 6; for 824(pCATP) CAT activity, n = 3; for 824(pCATspo) CAT activity, n = 6.