Conjugative transfer of the transposon Tn919 to lactic acid bacteria

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Abstract

The streptococcal transposon Tn919 was transferred from Streptococcus faecalis GF590 to selected Group N Streptococcus strains and to one strain each of Lactobacillus plantarum and Leuconostoc cremoris, using the filter mating method. An S. lactis MG1363 Rifr Tcr transconjugant also acted as a donor, but was less efficient than GF590. Frequencies of transfer varied between 4.0 × 10-8 and 5.29 × 10-5 per recipient. Further analysis of S. lactis MG1363 Smr Tcr transconjugants showed that insertion of Tn919 into the chromosome was site-specific.

Original languageEnglish
Pages (from-to)115-119
Number of pages5
JournalFEMS Microbiology Letters
Volume30
Issue number1-2
DOIs
Publication statusPublished - 1985

Keywords

  • chromosomal insertion
  • Leuconostoc
  • S. lactis MG1363
  • site specificity

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