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. 2017 Nov 1;2(6):e00306-17. doi: 10.1128/mSphere.00306-17

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FIG 2 — Swarming motility of kanamycin-complemented sensitive isolates and mutants. A kanamycin-sensitive isolate and several sensitive deletion mutants were complemented with plasmids of either Salmonella or E. coli origin containing different kanamycin resistance genes (aphA1 or aphA2). The resulting strains were then tested to determine the role that different combinations of resistance genes and plasmid backgrounds had on enhancing swarming due to the presence of kanamycin in the motility medium (0, 32, and 128 µg/ml). Growth was normalized to the no-antibiotic control for each isolate, and data were expressed as a fold change between the control and each treatment. Statistical increases are noted by asterisks, and decreases are noted by number signs (P < 0.05). BBC1501 = 1434ΔaphA1/aphA1^p745; BBC1502 = 752/aphA1^p745; BBS1213 = 1434ΔaphA1/aphA1^pACYC; BBS1215 = 1434ΔaphA1ΔhilA/aphA1^pACYC; BBS1219 = 1434ΔaphA1/aphA2^pCR.