Volume 20, Number 10—October 2014
Research
Clinical Isolates of Shiga Toxin 1a–Producing Shigella flexneri with an Epidemiological Link to Recent Travel to Hispañiola
Figure 2
![Mitomycin C induces production of Shiga toxin 1a (Stx1a) in a recA-dependent manner. Exponentially growing cultures of the indicated parental strains or recA mutants were grown with or without 0.5 μg/mL mitomycin C (mito C) for 3 hours. Supernatants (A) or whole cell lysates (B) were prepared for determination of cytotoxicity for Vero cells. CD50/mL values were determined as described in Figure 1. Data are averages of 3 biological replicates. Error bars indicate standard error. Δ indicates sampl](/eid/images/14-0292-F2.jpg)
Figure 2. Mitomycin C induces production of Shiga toxin 1a (Stx1a) in a recA-dependent manner. Exponentially growing cultures of the indicated parental strains or recA mutants were grown with or without 0.5 μg/mL mitomycin C (mito C) for 3 hours. Supernatants (A) or whole cell lysates (B) were prepared for determination of cytotoxicity for Vero cells. CD50/mL values were determined as described in Figure 1. Data are averages of 3 biological replicates. Error bars indicate standard error. Δ indicates samples that are recA mutants.
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