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Differentiation of Some Enterococci by Gas Chromatography¹

^a Department of Bacteriology, Iowa State University, Ames, Iowa 50010

ABSTRACT

Relative fatty acid compositions of 37 enterococci were examined by gas chromatography. Streptococcus faecalis, S. faecium, and S. faecium var. durans yielded similar fatty acid patterns. Strains of S. faecium var. casseliflavus, and a motile yellow-pigmented streptococcus, contained very low levels of C_19:0 cyclopropane fatty acid and four unidentified components, compared to the other strains of enterococci examined. There were no significant differences in the fatty acid patterns of enterococci grouped according to plant, animal, or human source.

¹ Journal Paper no. J-7038 of the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa; Project no. 1763.