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Appl Environ Microbiol. Mar 1990; 56(3): 815–818.
PMCID: PMC183427

Toxicity of Irradiated Media for Xenorhabdus spp

Abstract

Bacterial isolates of the genus Xenorhabdus were shown to be extremely sensitive to photoproducts produced in a number of common media irradiated by fluorescent light. Two forms of toxic oxygen, hydrogen peroxide and superoxide radical, were produced in the media upon exposure to fluorescent light. The addition of pyruvate or catalase to the irradiated media eliminated the toxicity. The poor plating efficiencies previously reported for Xenorhabdus spp. are likely due to the uncontrolled exposure of media to ambient lighting.

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Selected References

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