(A). Plating results for biofilms of A. baumannii LMG 10520 exposed to CIP, MEM, CST, TOB alone or in combination with MomL (50 µg/mL); (B), Plating results for biofilms of A. calcoaceticus LMG 10517 exposed to CIP, MEM, CST, TOB alone or in combination with MomL (200 µg/mL). Data shown in box-whisker plots are from two biological replicates with three technical replicates each (n = 6). Boxes span the interquartile range; the line within each box denotes the median, and whiskers indicate the minimum and maximum values. Mann–Whitney tests were performed to compare control and MomL or antibiotic treatment alone and in combination with MomL (*, P < 0.05). (C). Representative fluorescence images of A. baumannii LMG 10520 and A. calcoaceticus LMG 10517. Biofilms were treated with MomL alone or in combination with tobramycin and stained with Syto9 and propidium iodide. 20 × Objective (numerical aperture: 0.65) was used and the final magnification is 599 ×. The scale bar represents 200 µm.