Figure 6

(A) β-galactosidase units per spore obtained with increasing amounts of enzyme. The enzyme was adsorbed to wild type spores (black symbols) or mutant spores lacking cotE (grey symbols) or cotH (white symbols). (B) Percentage of β-galactosidase units observed after incubation at pH 4.0 for various times of the free enzyme (black symbols) and of the enzyme bound to cotE (grey symbols) or cotH (white symbols) spores. The data shown are representative of three independent experiments, each with three biological replicates.