The Differentiation of Streptococcus Lactis from Streptococcus Fecalis

Abstract

Streptococcus lactis may be readily differentiated from Streptococcus fecalis. Streptococcus lactis has a lower maximum growth temperature, a lower thermal death point, a lower alkaline limit for growth, and a lower tolerance for sodium chloride. Although present conceptions of bacterial species may be profoundly modified as knowledge of dissociation and variation increases, based upon present criteria, there would appear to be ample basis for considering these organisms distinct species.