Prophage-Cured Derivatives of Streptococcus lactis and Streptococcus cremoris

Abstract
Prophage curing was achieved in Streptococcus lactis and Streptococcus cremoris , and the cured derivatives were shown to be indicators for their temperate bacteriophages. Relysogenization of these cured derivatives completed the first formal demonstration of the lysogenic state in lactic streptococci.