Affiliation:
1. New York University School of Medicine and Medical Center, New York, New York 10016
Abstract
Five clones of the Park-Williams number 8 strain of
Corynebacterium diphtheriae
, previously maintained in separate laboratories, were examined for their colonial and biochemical properties, for the restriction and modification system which operates to obscure their lysogeny, and for their capacity to produce large amounts of toxin under ordinary laboratory conditions. The phenotypes of their phage, P, produced in strain 603 and C7 (P·603 and P·C7) differ both as to stability to storage in the cold and to inactivation by antiphage serum. Evidence for a high degree of stability in the integration of P prophage in the PW8 genome is presented.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
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