INFLUENCE OF pH ON PROLIFERATION OF LACTIC STREPTOCOCCUS BACTERIOPHAGE

Abstract
Five strains of lactic streptococcus bacteriophage and the homologous organisms were studied over a wide pH range to determine the influence of reaction on bacteriophage proliferation. The max. and min. pH levels at which bacteriophage occurred varied for each strain studied. Bacteriophage proliferation usually failed to occur at pH levels at which the growth of the host organism was inhibited considerably. Two strains of bacteriophage proliferated over the entire pH range of organism growth, but 3 strains did not.