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Antimicrob Agents Chemother. 1976 December; 10(6): 912-914
Copyright © 1976 American Society for Microbiology. All Rights Reserved.

Bacteriocin Production by Group A Streptococcal L-Forms

^a Departments of Pediatrics and Microbiology, University of Minnesota Medical School, Minneapolis, Minnesota 55455

ABSTRACT

L-forms induced from a bacteriocin-producing strain of group A streptococcus retained both the ability to produce the streptococcin and producer strain immunity to the homologous bacteriocin. L-forms of a spontaneously cured (bacteriocin negative) derivative of this same strain failed to produce streptococcin but were sensitive to its action.

¹ Present address: Department of Bacteriology, National Institute of Hygiene, 00-791 Warsaw, Poland.

² Present address: Department of Microbiology, University of Otago, Dunedin, New Zealand.