Figure 4
From: Biofilm formation as a novel phenotypic feature of adherent-invasive Escherichia coli(AIEC)
Mean SBF index of the strains classified by their serogroup. White bars: Serogroups with mean SBF that falls into 'weak' biofilm formation category. Grey bars: Serogroups with mean SBF that falls into 'moderate' biofilm formation category. Black bars: Serogroups with mean SBF that falls into 'strong' biofilm formation category. The serotype of those E. coli strains that showed different biofilm formation category than the mean SBF for the serogroup is specified: 1: Only AIEC17 (ONT:HNT) strain was classified as 'moderate' biofilm producer (M). 2: Nonmotile ECG-041 (O2:H-) strain was classified as 'weak' biofilm producer (W). 3: Three strains with O6:H31 serotype were classified as 'weak' biofilm producers, whereas strains with O6:H1, O6:H5 and O6:HNT serotypes were 'moderate' or 'strong' biofilm producers. 4: Nonmotile ECG-054 (O14:H-) was 'weak' biofilm producer (W). 5: Three strains were 'moderate' (O22:H1) and 4 strains 'strong' (O22:H1, O22:H7, and O22:H18) biofilm producers. 6: AIEC08 (O25:H4) was classified as 'weak' biofilm producer.