1993•Oral Microbiology and ImmunologyRequires access

Electron microscopy of phages in serotypes of Actinobacillus actinomycetemcomitans

Ingar Olsen, Ellen Namork, Veslemøy Myhrvold

Abstract

Actinobacillus actinomycetemcomitans, Actinobacillus ureae, Haemophilus aphrophilus, Haemophilus paraphrophilus, Haemophilus influenzae, Haemophilus parainfluenzae, Pasteurella haemolytica and Pasteurella multocida strains were examined by transmission electron microscopy for the presence of bacteriophages. Phages were detected in serotype a (SUNY 75) and e (UOH 1705) and in the fresh clinical isolates UOH Q1243 and UOH Q1247 of A. actinomycetemcomitans. Phages were not found in serotype b, c and d strains of A. actinomycetemcomitans, in the fresh clinical isolate UOH Q1244 of this species or in old strains (including reference strains) of related species from the Actinobacillus-Haemophilus-Pasteurella group.

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Key concepts: Actinobacillus, Haemophilus parainfluenzae, Microbiology, Haemophilus, Serotype, Pasteurellaceae, Pasteurella, Biology