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Fig. 1 | Annals of Clinical Microbiology and Antimicrobials

Fig. 1

From: Killing of Serratia marcescens biofilms with chloramphenicol

Fig. 1

S. marcescens biofilms are partially resistant to ceftriaxone, gentamicin and kanamycin. ac S. marcescens biofilms were treated with a ceftriaxone: 0.005, 0.05, 0.5 mg/ml; b kanamycin: 0.625, 6.25, 62.5 mg/ml; and c gentamicin: 0.08, 0.80, 8.0 mg/ml. Absorbance (540 nm) for antibiotic experiments (mean + SD). Values are normalized to the mean control of each experiment. d Representative pictures of in vitro S. marcescens biofilms treated with ceftriaxone, kanamycin or gentamicin at shown concentrations. For multi-group comparisons Dunn’s multiple-comparison post-test was used: *P < 0.05, **P ≤ 0.01, ***P ≤ 0.001

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