TABLE 1.

Antimicrobial susceptibilities of S. maltophilia KJ and its derived LT deletion mutants

Strain	MIC (μg/ml)a
	CHL	NAL	TET	AMK	GEN	KAN	ERY	LM	VAN
KJ wild type	8	8	16	1,024	1,024	256	64	256	512
ΔmltA mutant	8	4	16	256	256	128	32	128	256
ΔmltB1 mutant	8	4	16	64	128	64	8	16	128
ΔmltB2 mutant	8	4	16	256	128	128	32	256	256
ΔmltD1 mutant	8	4	16	128	512	128	32	32	64
ΔmltD2 mutant	8	4	16	128	256	128	32	32	128
Δslt mutant	8	8	16	64	128	64	32	64	128
ΔmltD1 ΔmltB1 mutant	8	4	16	256	512	64	32	64	128
ΔmltD1 ΔmltD2 mutant	8	8	16	128	512	128	32	64	128
ΔmltD1 ΔmltB1 ΔmltD2 mutant	8	8	16	256	512	128	32	128	128

^aCHL, chloramphenicol; NAL, nalidixic acid; TET, tetracycline; AMK, amikacin; GEN, gentamicin; KAN, kanamycin; ERY, erythromycin; LM, leucomycin; VAN, vancomycin.