Fig. 2

Adhesion or invasion by the wild type and mutant strains when incubated with epithelial cells. WT is the wild type strain. AM 1–10 are the 10 mutants that displayed defective adhesion or invasion against epithelial cells. The reductions in adhesion or invasion that were observed in each of the mutant strains are represented as percentages. These values were calculated by comparing the number of adhered or invaded bacterial cells in the mutants to the number in the wild type strain