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Fig. 5 | BMC Microbiology

Fig. 5

From: Analysis of virulence phenotypes and antibiotic resistance in clinical strains of Acinetobacter baumannii isolated in Nashville, Tennessee

Fig. 5

Correlation analyses of A. baumannii virulence phenotypes. a Analysis of motility phenotypes from A. baumannii strains isolated from various sources reveals A. baumannii isolated from wounds has significantly higher motility than those isolated from sputum, bronchial wash, blood (P< 0.01, One-Way ANOVA) or urine and Foley catheter (P< 0.05, One-Way ANOVA). Bars indicate mean values of all strains isolated from the source (+/− standard error mean error bars) with individual measurements for each strain indicated by discrete points (n=4 biological replicates). b Analysis of biofilm formation on polystyrene by A. baumannii strains isolated from various sources reveals A. baumannii strains isolated from blood have significantly higher biofilm to biomass ratio than those isolated from sputum or bronchial wash (P< 0.05, One-Way ANOVA) or wounds (P< 0.01, One-Way ANOVA). Bars indicate mean values of all strains isolated from the source (+/− standard error mean error bars) with individual measurements for each strain indicated by discrete points (n=4 biological replicates). c Both Spearman’s and Pearson’s correlation analyses reveal an inverse relationship between biofilm formation and motility (Pearson’s R2= 0.2480 with a 95% confidence interval of − 0.7896 to − 0.02284, P=0.0419, Spearman’s R= − 0.5270 with a 95% confidence interval of − 0.8094 to − 0.04668, P=0.0153). d Spearman’s correlation analysis reveals an inverse relationship between motility and hemolysis (Spearman’s R=-0.4496 with a 95% confidence interval of − 0.7713 to 0.05499, P=0.0153)

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