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Constructing Mutants in Serotype 1 Streptococcus pneumoniae strain 519/43
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Lysogeny in Streptococcus pneumoniae.

Geneviève Garriss1, Birgitta Henriques-Normark1,2,3

  • 1Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 171 77 Stockholm, Sweden.

Microorganisms
|October 10, 2020
PubMed
Summary
This summary is machine-generated.

Temperate bacteriophages, or bacterial viruses, integrate into the genome of Streptococcus pneumoniae, influencing its evolution and virulence. This review details their genetic features, integration sites, and impact on bacterial pathogenesis.

Keywords:
PblBStreptococcus pneumoniaelysogenyphage integrationphage phylogenytemperate bacteriophages

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Area of Science:

  • Microbiology
  • Virology
  • Genomics

Background:

  • Bacterial viruses, bacteriophages, significantly impact bacterial evolution and pathogenesis.
  • Temperate bacteriophages can integrate into host bacterial chromosomes, establishing lysogeny.
  • Streptococcus pneumoniae, a human pathogen, frequently harbors lysogenic phages, classified into distinct phylogenetic groups.

Purpose of the Study:

  • To review recent advances in characterizing temperate pneumococcal phages.
  • To focus on the genetic features and chromosomal integration loci of these phages.
  • To discuss the role of phages and their encoded factors in bacterial colonization and virulence.

Main Methods:

  • Genomic studies of Streptococcus pneumoniae isolates.
  • Phylogenetic classification of integrated bacteriophages.
  • Literature review of recent research on temperate pneumococcal phages.

Main Results:

  • Identification of distinct phylogenetic groups of temperate pneumococcal phages.
  • Characterization of phage genetic features and chromosomal integration sites.
  • Evidence for phage contribution to bacterial colonization and virulence.

Conclusions:

  • Temperate pneumococcal phages are key players in the biology of Streptococcus pneumoniae.
  • Understanding phage genetics and integration is crucial for deciphering their role in pathogenesis.
  • Future research holds promise for novel insights into phage-host interactions and therapeutic applications.