Changes in phage-sensitivity of Shigella flexneri strains. II. The F-like character of Ms2-sensitive variants.
Variants sensitive to male specific phage Ms2 appeared among Ms2 non-sensitive Shigella flexneri cultures in the course of liquid medium passages. Sensitivity to Ms2 was lost on acridine orange treatment and was transferable into Ms2 non-sensitive variants. The Ms2 sensitive variants had fimbrial antigen. Electron microscopy showed that Ms2 phages were adsorbed on the F-like fimbriae of these variants. It was assumed that F-like plasmids determining F-like fimbrial antigen were carried by these variants.
D000327:Adsorption; D000942:Antigens, Bacterial / Q000032:analysis; D001435:Bacteriophages / Q000502:physiology*; D005144:F Factor; D010861:Fimbriae, Bacterial / Q000276:immunology / Q000648:ultrastructure; D012763:Shigella flexneri / Q000235:genetics* / Q000502:physiology / Q000648:ultrastructure
D000942:Antigens, Bacterial