Genetic determination and localization of multiple bacteriocins produced by Enterococcus faecium CWBI-B1430 and Enterococcus mundtii CWBI-B1431
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作者:
Aguilar-Galvez, Ana
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Univ Nacl Agr La Molina, Inst Biotecnol, Lima, Peru
Univ Liege, Gembloux Agro Bio Tech Unit Bioind, B-5030 Gembloux, BelgiumUniv Nacl Agr La Molina, Inst Biotecnol, Lima, Peru
Aguilar-Galvez, Ana
[1
,2
]
Dubois-Dauphin, Robin
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Univ Liege, Gembloux Agro Bio Tech Unit Bioind, B-5030 Gembloux, BelgiumUniv Nacl Agr La Molina, Inst Biotecnol, Lima, Peru
Dubois-Dauphin, Robin
[2
]
Campos, David
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Univ Nacl Agr La Molina, Inst Biotecnol, Lima, PeruUniv Nacl Agr La Molina, Inst Biotecnol, Lima, Peru
Campos, David
[1
]
Thonart, Philippe
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Univ Liege, Gembloux Agro Bio Tech Unit Bioind, B-5030 Gembloux, BelgiumUniv Nacl Agr La Molina, Inst Biotecnol, Lima, Peru
Thonart, Philippe
[2
]
机构:
[1] Univ Nacl Agr La Molina, Inst Biotecnol, Lima, Peru
[2] Univ Liege, Gembloux Agro Bio Tech Unit Bioind, B-5030 Gembloux, Belgium
Enterococcus faecium CWBI-B1430 and Enterococcus mundtii CWBI-B1431 from artisanal-produced Peruvian cheeses showed the presence of 4 putative bacteriocin genes: enterocin A, enterocin B, enterocin P, and mundticin KS. The multiple bacteriocin producer E. faecium CWBI-B1430 presented 1 plasmid of 34.6 kb, whereas E. mundtii CWBI-B1431 contained 1 plasmid of 11.0 kb. The structural gene responsible for mundticin KS production was located on 5.6 and 3.1 kb HindIII plasmid fragments. The reverse transcription-PCR analysis showed the expression of the bacteriocin genes enterocin A, enterocin B, and mundticin KS in E. faecium CWBI-B1430 and the bacteriocin genes enterocin P and mundticin KS in E. mundtii CWBI-B1431. To our knowledge, this is the first report of the expression of mundticin KS in E. faecium and enterocin P in E. mundtii.