FIG 5.

Tellurite enhances susceptibility to antibiotics independently of yceG and yceH. (A) Growth inhibition of WT B. anthracis Sterne spread on plates containing either 0 μg/ml tellurite (gray bars) or 30 μg/ml tellurite (black bars) and exposed to chloramphenicol (CM)-, tetracycline (TET)-, or penicillin (PCN)-impregnated disks. (B) Growth inhibition of WT B. anthracis Sterne (black bars) or TN1 mutant (white bars) spread on plates containing 30 μg/ml tellurite and exposed to chloramphenicol (CM)-, tetracycline (TET)-, or penicillin (PCN)-impregnated disks. Results from three independent experiments were combined and presented as means ± standard errors of the means. *, P < 0.05, or **, P < 0.01, by unpaired t test.