PMID: 16649660May 3, 2006Paper

Molecular evidence for the lysogenic state of microorganisms belonging to the genus Bordetella and characterization of Bordetella parapertussis temperate bacteriophage 66(2.2)

Genetika
L N Siniashina, G I Karataev

Abstract

A new bacteriophage phiK of microorganisms belonging to the genus Bordetella was isolated from cells of the earlier characterized strains 66(2-2) (1 and 2) obtained upon phage conversion of B. parapertussis 17903 cells by B. pertussis bacteriophage phi134. Bacteriophage phiK is identical to previously described Bordetella bacteriophages phiT, phi134, and phi214 in morphology and some biological properties but has a permuted genome different from all other phages. DNA of bacteriophage phiK is not integrated in the chromosome of B. parapertussis 17903, similar to DNA of bacteriophages phiT, phi134, and phi214 that are not integrated into B. pertussis and B. bronchiseptica chromosomes, but may be present in a small part of the bacterial population as linear plasmids. Sequences homologous to DNA of bacteriophage phiK were detected in the chromosome of strain 66(2-2) (1 and 2) and in chromosomes of all tested strains B. pertussis and B. bronchiseptica. Prophage integration in chromosomes of microorganisms of the genus Bordetella may vary in different bacterial strains and species. An assumption about abortive lysogeny of B. parapertussis bacteria for phiK phage and of B. bronchiseptica for closely related phages phiT, phi134, and ph...Continue Reading

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