EHM and BC received doctoral fellowships by CONICYT and MECESUP U

EHM and BC received doctoral fellowships by CONICYT and MECESUP UAB0802 additionally to EHM. We would like to thank Nicolás Pacheco for his assistance in the UFC experiments. The authors have declared that no competing interests exist. The funders had no role in study NSC 683864 concentration design, data collection and analysis, decision to publish, or preparation of the manuscript. Publication fees were covered by FONDECYT grant # 1120384 and from Universidad Andres Bello DI-34-11/R (to CPS). References 1. Fridovich I: The biology of oxygen radicals. Science. 1978, 201:875–880. 2. Hassett D, Cohen M: Bacterial adaptation to oxidative stress:

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