FIG. 5.

β-Galactosidase activities of the flaA-lacZ and flaB-lacZ fusion plasmids in Sch3N, the nonmotile neuB mutant SMT166, and the motile lsg mutant SMT18. β-Galactosidase activity was assayed for A. caviae Sch3N (WT), SMT166 (neuB mutant), and SMT18 (lsg mutant) and the derivative strains containing only the vector or the flaA-lacZ and flaB-lacZ fusion plasmids, as indicated below the bars. The activity was assayed using bacteria grown at 37°C in BHIB. Assays were carried out in triplicate, and the values are the means ± standard deviations.