Table 2.

Minimum Inhibitory Concentration (μg/mL) of Eight β-Lactam Antibiotics on Janthinobacterium lividum and Subclones After 24 h of Growth

β-Lactam antibiotic	Minimum inhibitory concentration of strain or constructa
	J. lividum BR01	J. lividum BP01	E. coli pBRbeta	E. coli pBPbeta	E. coli pCC1FOS (empty vector)
Amoxicillin	256	128	>512	>512	4
Ampicillin	256	512	512	>512	8
Carbenicillin	128	256	128	512	4
Penicillin G	128	64	>512	>512	32
Piperacillin	>512	>512	>512	>512	4
Cephalexin	256	256	256	256	8
Cefamandole	256	256	256	512	0.5
Ceftazidime	8	16	8	4	0.5

^aNames are defined in Table 1.