Ultra-morphology of coliphages isolated from water

Using the ARCAT technique for coliphage detection, variations in different plaques have been noted. Investigation on the associated phage ultra-morphology for 45 plaques isolated in different kinds of water in Sao Paulo State, Brazil indicated the phages involved belonged to three families: Myoviridae, Podoviridae and Siphoviridae. There were no apparent relationship between coliphage family and specific plaque morphology. Escherichia coli strain ATCC 13.706 detected a broad spectrum of coliphage in water. A high diversity of coliphages were detected in the water analysed.