Characterization of the first Pseudomonas grimontii bacteriophage, PMBT3

Arch Virol. 2021 Oct;166(10):2887-2894. doi: 10.1007/s00705-021-05173-0. Epub 2021 Aug 4.

Abstract

The complete genome sequence of the virulent bacteriophage PMBT3, isolated on the proteolytic Pseudomonas grimontii strain MBTL2-21, showed no significant similarity to other known phage genome sequences, making this phage the first reported to infect a strain of P. grimontii. Electron microscopy revealed PMBT3 to be a member of the family Siphoviridae, with notably long and flexible whiskers. The linear, double-stranded genome of 87,196 bp has a mol% G+C content of 60.4 and contains 116 predicted protein-encoding genes. A putative tellurite resistance (terB) gene, originally reported to occur in the genome of a bacterium, was detected in the genome of phage PMBT3.

MeSH terms

  • Animals
  • Bacteriolysis
  • Base Composition
  • Base Sequence
  • DNA, Viral / genetics
  • Genome, Viral / genetics
  • Host Specificity
  • Milk / microbiology
  • Phylogeny
  • Pseudomonas / virology*
  • Pseudomonas Phages / classification
  • Pseudomonas Phages / genetics
  • Pseudomonas Phages / physiology
  • Pseudomonas Phages / ultrastructure
  • Siphoviridae / classification
  • Siphoviridae / genetics
  • Siphoviridae / physiology
  • Siphoviridae / ultrastructure
  • Viral Proteins / genetics
  • Virion / ultrastructure

Substances

  • DNA, Viral
  • Viral Proteins

Supplementary concepts

  • Pseudomonas grimontii