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Figure 2 | BMC Microbiology

Figure 2

From: Staphylococcus aureus sigma B-dependent emergence of small-colony variants and biofilm production following exposure to Pseudomonas aeruginosa 4-hydroxy-2-heptylquinoline-N- oxide

Figure 2

HQNO stimulates biofilm production in normal strains but does not alter high biofilm production in SCVs. (A) Relative biofilm production in related normal (open bars) and SCV (grey bars) strains. Results are normalized to the normal strain for each pair (dotted line). (B) Pictures show the biofilm formation of the normal strain CF1A-L in the absence or in the presence of HQNO as detected by crystal violet staining. (C) Relative biofilm production in strains exposed (black bars) or not (open bars) to 10 μg/ml of HQNO. Results are normalized to the unexposed condition for each strain (dotted line). Data are presented as means with standard deviations from at least three independent experiments. Significant differences between normal and SCV strains (-L and -S suffixes, respectively) or between unexposed and HQNO-exposed conditions are shown (*, P < 0.05; **, P < 0.01; ***, P < 0.001; unpaired t- test).

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BMC Microbiology

ISSN: 1471-2180

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