Abstract

The 936-type lytic bacteriophages are the most frequently encountered species infecting lactococcal dairy starters. Infection by members belonging to this species has a significant negative impact on the cheese production process. Here we report the complete genome sequence of the bacteriophage CaseusJM1, a 936-type phage isolated from an Irish dairy plant.

Highlights

  • The 936-type lytic bacteriophages are the most frequently encountered species infecting lactococcal dairy starters

  • Strains belonging to Lactococcus lactis represent important starter cultures in the dairy industry, and despite decades of research, such starter strains continue to suffer from phage attacks [1]

  • CaseusJM1 was identified as a 936-type phage based on transmission electron microscopy and multiplex PCR [6]

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Summary

Introduction

The 936-type lytic bacteriophages are the most frequently encountered species infecting lactococcal dairy starters. Strains belonging to Lactococcus lactis represent important starter cultures in the dairy industry, and despite decades of research, such starter strains continue to suffer from phage attacks [1]. Several global studies have shown that 936-type phages remain one of the most frequently isolated species, sometimes leading to so-called slow or dead vats [3,4,5].

Results
Conclusion

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