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Glucose-dependent Secretion and Destruction of Hydrogen Peroxide by Mycoplasma pneumoniae

By Gerald Cohen and Norman L. Somerson

Abstract

The secretion of H2O2 by Mycoplasma pneumoniae and M. gallisepticum was measured with the new catalase-aminotriazole method. Peroxide secretion by the mycoplasmas was stimulated by glucose. When catalase and aminotriazole were omitted and exogenous H2O2 was added to the mycoplasmas, a loss in H2O2 was noted with time; the addition of glucose speeded the disappearance of H2O2. The presence of this peroxidase-like activity in the mycoplasmas explains an observed failure of H2O2 to accumulate freely in the suspension medium

Topics: Microbial Physiology and Metabolism
Year: 1969
OAI identifier: oai:pubmedcentral.nih.gov:284852
Provided by: PubMed Central
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