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. 2009 Jul 6;53(9):4015–4018. doi: 10.1128/AAC.00590-09

FIG. 3.

FIG. 3.

Susceptibility of the M. chelonae strains ATCC 35752 and 9917 to GTA and OPA, and effect of expressing the mspA porin gene from M. smegmatis. Results are expressed as CFU counts upon exposure of the test organisms (M. chelonae ATCC 35752 [closed rectangles, solid line]; M. chelonae 9917 [open triangles, solid line]; M. chelonae ATCC 35752/pZS01 [closed rectangles, dotted line]; 9917/pZS01 [open triangles, dotted line]) to the indicated concentrations of GTA (A and B) or OPA (C) for 0 to 30 min. The increased susceptibility of 9917/pZS01 to GTA was consistently visible at the highest concentration of disinfectant (B) after 5 min of exposure, indicative of a more rapid killing of the M. chelonae recombinant isolate expressing the mspA porin gene.