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Figure 4 | BMC Microbiology

Figure 4

From: The impact of the competence quorum sensing system on Streptococcus pneumoniaebiofilms varies depending on the experimental model

Figure 4

Microscopy of cells in the stationary phase microtiter biofilm model. The images (40 × magnification) show the attachment of pneumococci to the surface of microtiter plates after 24 hours of incubation. The wt strain TIGR4 (panel A), the comD mutant (panel B), the comC mutant (panel C) and the comC mutant with the addition of CSP2 (panel D) were compared. Biofilm images are taken on crystal violet stained cells observed in bright filed using the 40 × objective of a Leica DM1000 Microscope and a DFC digital camera.

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