Fig. 7.
Agar surface competition assay between Lactobacillus acidophilus (A) or Limosilactobacillus reuteri (B) and EHEC strains. The WT, ΔqseC, ΔqseC/qseC + , and L. acidophilus strains or L. reuteri in single culture (SC) were directly added to the agar surface. Then, the strain was mixed in co-culture (WT + L. acid or L. reuteri. and ΔqseC + L. acid or L. reuteri. and ΔqseC/qseC + + L. acid or L. reuteri) at the ratio of 1:1 or 1:5 of EHEC plus L. acid or L. reuteri, respectively, and added to the agar surface. After 16 h, the growth halo from the single-culture and co-culture plates was collected, diluted, plated, and counted. Bars without an asterisk showed no statistically significant difference, p < 0.001 (***), p < 0.0001 (****) (two-way ANOVA)