Table 4.

Susceptibility of E. coli K-12 substr. MG1655 ΔacrB ΔacrF following complementation with acrF from E. coli K-12 substr. MG1655 and E. coli O157:H7 (ST11)

	MIC (µg ml−1)
Strain	ERY	R6G	EtBr
E. coli ATCC 25922	64	1024	256
E. coli K-12 substr. MG1655	64	512	512
E. coli K-12 substr. MG1655 ΔacrB	4	8	8
E. coli K-12 substr. MG1655 ΔacrB ΔacrF	4	8	8
E. coli K-12 substr. MG1655 ΔacrB ΔacrF+pET21 a	4	16	8
E. coli K-12 substr. MG1655 ΔacrB ΔacrF+pET21 a K-12 sequence	8	64	64
E. coli K-12 substr. MG1655 ΔacrB ΔacrF+pET21 a ST11 sequence	4	16	8

ERY, erythromycin; EtBr, ethidium bromide; R6G, rhodamine 6G.