Lack of the Delta Subunit of RNA Polymerase Increases Virulence Related Traits of Streptococcus mutans
Figure 2
Scanning electron microscopy of 16 h old biofilms of S. mutans strains.
Wild type (A, C); ΔrpoE mutant (B, D). The ΔrpoE mutant had a different structure of the biofilm matrix compared to the wild type. The red arrow shows the dendrite-like structure of the ΔrpoE mutant biofilm that attached to the polystyrene surface. The bars in image A, B indicate 5 µm, while in image C, D they indicate 2 µm.