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. 1970 Jun;5(6):754–764. doi: 10.1128/jvi.5.6.754-764.1970

Some Properties of Five New Salmonella Bacteriophages 1

Robert L Nutter 1, Leonard R Bullas 1, Robert L Schultz 1
PMCID: PMC376069  PMID: 4193833

Abstract

Five bacteriophages were isolated from lysogenic strains of Salmonella potdam. On the basis of plaque morphology, thermostability, serology, host range, one-step growth parameters, and phage morphology, they were divided into three groups: group A, phages P4 and P9c; group B, phages P3 and P9a; and group C, phage P10. Group A phages had a hexagonal head 55 nm in diameter with a short tail 15 nm long. These phages were particularly characterized by high thermostability, lack of serological relationship with any of the other phages, and restriction of lysis to other Salmonella strains of Kauffmann-White group C1. Group B phages had a head identical in size and shape to that of the A phages, but they possessed a tail 118 nm long with a contractile sheath. A unique feature was the occurrence of tail fibers at the end of the core rather than at the base of the sheath. These phages were considerably less thermostable, had extended host ranges, and were serologically distinct from each other but unrelated to the A phages. The group C phage, P10, had a head identical to that of the A and B phages. It had a tail 95 nm in length, with tail fibers attached to a base plate at the end of a contractile sheath. P10 was highly sensitive to heat, lysed only smooth strains of Salmonella, and showed a degree of serological relationship to both B phages. The relationship of these phage groups to previous Salmonella phage grouping schemes is discussed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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