FIG. 6.

The effect of M6P on binding of Listeria spp. to McCoy cells. CSFE-labeled Listeria spp. were incubated with McCoy cells in the presence of M6P (0 to 50 mM), and binding was measured by FACS. Bacterial binding was determined by calculating the relative fluorescent intensity. Significant dose-dependent inhibition of binding was observed for L. monocytogenes cocktail (P < 0.05) and serotype 1/2a (P < 0.01). There was a smaller but significant dose-dependent increase in binding for L. innocua cocktail and serotype 6b (P < 0.05). Data presented are means ± standard deviations (n = 3 in duplicate).