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Appl Environ Microbiol. 1968 January; 16(1): 114-121
Copyright © 1968 American Society for Microbiology. All Rights Reserved.

Monitored Environment System to Control Cell Growth, Morphology, and Metabolic Rate in Fungi by Oxidation-Reduction Potentials

Department of Medicine and Microbiology, The University of Chicago, Chicago, Illinois 60637

ABSTRACT

A device for the adjustment, maintenance, and monitoring of a desired oxidation-reduction potential in a liquid environment is described. The filamentous species, Penicillium lilacinum and Trichophyton schoenleinii, and the dimorphic species, Histoplasma capsulatum, developed budding yeastlike cells when grown in a liquid medium with a low oxidation-reduction potential. When the organisms were inoculated into fresh medium, they returned to the filamentous condition as the oxidation-reduction potential was restored to a more positive (oxidizing) environment.