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DEMONSTRATION OF LYSOGENY IN STABLE L FORMS OF PROTEUS MIRABILIS

Institut für Mikrobiologie und Experimentelle Therapie Jena der Deutschen Akademie der Wissenschaften zu Berlin, Jena, Germany

ABSTRACT

TAUBENECK, UDO (Institut für Mikrobiologie und Experimentelle Therapie, Jena, Germany). Demonstration of lysogeny in stable L forms of Proteus mirabilis. J. Bacteriol. 86:1265–1269. 1963.—Stable L forms of eight different lysogenic Proteus mirabilis strains have proved to be lysogenic. In an additional strain, phage production was induced upon transfer into the stable L form. This demonstrates that the stable L forms, like their parent bacillary types, are capable of forming mature phage. Their phage resistance is not due to an inability to form mature phage but to a loss of phage receptors. In some instances, the transition into the stable L form is associated with altered phage production, usually with increased phage production, in comparison with the parental bacillary type.