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Catalase inhibition by sulfide and hydrogen peroxide-induced mutagenicity in Salmonella typhimurium strain TA102
Umeå University, Faculty of Medicine, Department of Odontology, Oral Microbiology.
Umeå University, Faculty of Medicine, Department of Odontology, Oral Microbiology.
Umeå University, Faculty of Medicine, Department of Odontology, Oral Microbiology.
Umeå University, Faculty of Medicine, Department of Odontology, Oral Microbiology.
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1988 (English)In: Mutation research, ISSN 0027-5107, E-ISSN 1873-135X, Vol. 202, no 1, p. 59-64Article in journal (Refereed) Published
Abstract [en]

The lethal and mutagenic effects of hydrogen peroxide were studied in exponentially growing cultures of Salmonella typhimurium strain TA102. Exposure of the cultures to non-lethal levels of sodium sulfide significantly increased the lethality and mutagenicity of hydrogen peroxide. The catalase activity was decreased in cells exposed to sodium sulfide, but there were no changes in the cellular levels of superoxide dismutase, glutathione reductase, or NADPH-dependent alkyl hydroperoxide reductase. Hydrogen peroxide-induced mutagenesis and killing of S. typhimurium strain TA102 in the presence of sulfide may in part be explained by an inactivation of catalase by sulfide.

Place, publisher, year, edition, pages
Elsevier, 1988. Vol. 202, no 1, p. 59-64
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Microbiology in the medical area
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URN: urn:nbn:se:umu:diva-151249DOI: 10.1016/0027-5107(88)90163-7ISI: A1988Q646900008PubMedID: 3054531OAI: oai:DiVA.org:umu-151249DiVA, id: diva2:1243173
Available from: 2018-08-30 Created: 2018-08-30 Last updated: 2018-08-30Bibliographically approved

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Berglin, Ewa H.

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