FIG. 2.

Complementation of the sensitivity to PQ by pJP105. Cultures of strains ATCC 14028, EM1, and EM1/pJP105 were grown overnight in LB broth and stamped onto PQ gradient plates with increasing concentrations of IPTG (0 to 2 mM) as indicated. The plates were incubated at 37°C for 14 h, and the extent of growth of each strain was measured. The values are the averages of one representative experiment done in duplicate, and the error bars are the standard deviations.