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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Mol Microbiol. 2011 Oct 12;82(3):679–697. doi: 10.1111/j.1365-2958.2011.07845.x

Figure 5.

Figure 5

Sensitivity of the cdr mutant to exogenous H2O2 or t -butyl hydroperoxide. c162 (wt), c309 (mut), and c1655 (ct) were exposed to the indicated concentration of (A) H2O2 or (B) t-butyl-hydroperoxide for 1 hr in media lacking BSA and rabbit serum. After exposure, the treated samples were diluted in fresh BSK-II and then serially-diluted 1:1 to 2.4 × 10−1 spirochetes per well. Wells were analyzed after three weeks for spirochetes. Results shown are the average of at least three replicates. Percentages are plotted relative to untreated sample of the same clone. Error bars indicate the SEM. The asterisk (*) indicates a significant difference between the mutant and wild-type clones.