title: The contribution of induction of temperate phages to the numbers of free somatic coliphages in waters is not significant.
abstract: Somatic coliphages have been proposed as indicators of water quality. But several factors have been considered a drawback for their use as indicators. We evaluated the contribution of temperate phages to the numbers of somatic coliphages detected in water by ISO (International Standards Organization) standardised methods. Prophage induction from naturally occurring bacteria was assayed with mitomycin C, ciprofloxacin and UV irradiation. Results indicate that the presence of prophages will not influence the determinations of somatic coliphages in water.
authors.affiliation: Department of Microbiology, Faculty of Biology, University of Barcelona, Barcelona, Spain.
authors.forename: Maite
authors.initials: M
authors.lastname: Muniesa
authors.forename: Juan
authors.initials: J
authors.lastname: Jofre
mesh_terms: D002939:Ciprofloxacin / Q000494:pharmacology; D003090:Coliphages / Q000502:physiology*; D016685:Mitomycin / Q000494:pharmacology; D014466:Ultraviolet Rays; D014775:Virus Activation / Q000187:drug effects / Q000502:physiology* / Q000528:radiation effects; D014871:Water Microbiology
chemical_list: D016685:Mitomycin; D002939:Ciprofloxacin