Research Article

Invasion of Epithelial Cells Is Correlated with Secretion of Biosurfactant via the Type 3 Secretion System (T3SS) of Shigella flexneri

Figure 3

Swarming profile of Shigella strains. M90T: Shigella flexneri 5a strain M90T; Sbo: S. boydii; Sso: S. sonnei; spa40-: S. flexneri 5a spa40-; Ssp1, 2, 3: Shigella sp. Pae: P. aeruginosa used as positive control and E. coli-Top10 used as negative control.