Abstract
Bacteriocin production may be a factor contributing to bacterial dominance within complex microbial populations and may therefore be a common trait within the gut microbiota. However, of 278 antimicrobial-producing culturable lactic acid bacteria (LAB) isolated from a range of mammalian intestinal sources in this study, characterization revealed just 23 distinct strains producing bacteriocin-like inhibitory substances and one Streptococcus hyointestinalis strain producing a potentially novel protease-insensitive antimicrobial. Three class II bacteriocins previously isolated from intestinal-derived LAB were identified as enterocin A and two salivaricin P-like bacteriocins. Moreover, this is the first report of intestinal-derived Streptococcus salivarius producing variants of the lantibiotic salivaricin A.
Original language | English |
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Pages (from-to) | 24-34 |
Number of pages | 11 |
Journal | FEMS Microbiology Letters |
Volume | 291 |
Issue number | 1 |
DOIs | |
Publication status | Published - Feb 2009 |
Externally published | Yes |
Keywords
- Bacteriocin
- enterocin A
- Gastrointestinal tract
- Lactic acid bacteria
- Salivaricin A
- Salivaricin P