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Appl Environ Microbiol. 1974 January; 27(1): 192-196
Copyright © 1974 American Society for Microbiology. All Rights Reserved.

Inhibition of Neisseria gonorrhoeae by a Factor Produced by Candida albicans

¹ Division of Laboratories and Research, New York State Department of Health, Albany, New York 12201

ABSTRACT

When Candida albicans is present on Transgrow specimens, Neisseria gonorrhoeae is detected less frequently or else can be seen in Gram stains but cannot be readily cultured. When C. albicans and N. gonorrhoeae are grown together on Transgrow, the gonococcal cells die off much more readily than N. gonorrhoeae grown on Transgrow alone. By use of a cross-streaking technique on agar plates, it has been demonstrated that C. albicans produces a soluble substance inhibitory to N. gonorrhoeae, although not to other microorganisms tested. Preliminary results indicate that this inhibitory factor can be extracted by the use of tertiary butanol. Since approximately one-third of the Transgrow specimens with growth contains yeasts, of which C. albicans is by far the most frequent, this factor presents an important complication in the diagnosis of gonorrhea in women.