Unusual Bacteriophages in Salmonella newport

摘要: Six phages were isolated from sewage and a lysogenic strain. Three of them, belonging to new morphological group, had contractile tails elongated heads with axial ratios 2.4:1. Two phages, possessing short very long 3.5:1, isolates an extremely rare group. Phages both groups formed polyheads various sizes shapes. The last phage, 61 nm in diameter, seemed have tail-like appendage. All double-stranded DNA, active on enterobacteria only, differed their host range. first five be Salmonella specific.