Production of bacteriocin-like inhibitory substance (BLIS) by Staphylococcus spp. isolates from dogs.

In the present study, 39 canine isolates of Staphylococcus spp. were tested for antimicrobial substance (AMS) production. Seven AMS producers were identified, whose products exhibited a non-acidic character and a proteinaceous nature, therefore being considered bacteriocin-like inhibitory substances (BLIS).

Effects of the natural antimicrobial peptide aureocin A53 on cells of Staphylococcus aureus and Streptococcus agalactiae involved in bovine mastitis in the excised teat model.

Aureocin A53 is an N-formylated antimicrobial peptide (AMP) produced by Staphylococcus aureus. Aureocin A53 has a broad spectrum of antimicrobial activity against human and animal pathogens. In the present study, its antagonistic activity was investigated towards 30 strains of S.

Draft genome sequence of the producer strain of aureocin 4181, an antimicrobial peptide with antagonistic activity against multidrug-resistant staphylococci.

Objectives: The present study reports the draft genome sequence of Staphylococcus aureus 4181, a strain involved in bovine mastitis that produces aureocin 4181, a broad-spectrum antimicrobial peptide (AMP). Inhibition of multidrug-resistant (MDR) staphylococci involved in human infections by S. aureus 4181 was also investigated.

Draft genome sequence of Enterococcus faecium E86, a strain producing broad-spectrum antimicrobial peptides: Description of a novel bacteriocin immunity protein and a novel sequence type.

Objectives: The aim of this study was to report the draft genome sequence of the bacteriocinogenic strain Enterococcus faecium E86. Bacteriocins are prokaryotic peptides or proteins with antimicrobial activity. The genome information may contribute to the identification of enterocins produced by this strain that exhibit inhibitory activity against the foodborne pathogen Listeria monocytogenes and vancomycin-resistant enterococci (VRE) involved in human infections, among other bacterial genera and species.

Genetic and biochemical characterization of hyicin 3682, the first bacteriocin reported for Staphylococcus hyicus.

Hyicin 3682, the first bacteriocin reported for Staphylococcus hyicus, is a Bsa variant produced by S. hyicus 3682, a strain isolated from bovine milk. Hyicin 3682 is found in the culture supernatant, is bactericidal and its producing strain exhibits a much broader spectrum of antimicrobial activity than the producing strain of Bsa against several Gram-positive bacteria, which include foodborne pathogens, food-spoilage microorganisms and bacterial species of medical and veterinary importance.