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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
22/04/2010 |
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Data da última atualização: |
24/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CEOTTO, H.; NASCIMENTO, J. dos S.; BRITO, M. A. V. P. e; BASTOS, M. do C. de F. |
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Afiliação: |
HILANA CEOTTO, UFRJ; JANAÍNA DOS SANTOS NASCIMENTO, UFRJ; MARIA APARECIDA V PAIVA E BRITO, CNPGL; MARIA DO CARMO DE FREIRE BASTOS, UFRJ. |
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Título: |
Bacteriocin production by Staphylococcus aureus involved in bovine mastitis in Brazil. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Research in Microbiology, Paris, v. 160, p. 592-599, 2009. |
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DOI: |
https://doi.org/10.1016/j.resmic.2009.07.007 |
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Idioma: |
Inglês |
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Conteúdo: |
In the present study, 257 Staphylococcus spp. strains were isolated from bovine mastitis cases in 56 different Brazilian dairy herds located in the southeast region of the country and tested for antimicrobial substance (AMS) production. Forty-six strains (17.9%) exhibited AMS production and their identification as Staphylococcus aureus was based on the presence of Gram-positive cocci and on positive results in tests for the ability to coagulate rabbit plasma, to ferment mannitol, and to produce acetoin. The AMS were characterized as bacteriocins (Bac) by their sensitivity to proteolytic enzymes. The Bacþ strains were tested for resistance to 14 antimicrobial agents showing different profiles. Eighteen strains (39.0%) expressed a multiple antibiotic resistance phenotype. Forty-five strains exhibited at least one plasmid DNA. Cross-immunity analysis against strain S. aureus A70, which produces aureocin A70, amplification of the aurABCD operon (which encodes aureocin A70) or detection of this same operon by DNA/DNA hybridization revealed that 34 strains produce bacteriocins either identical or similar to aureocin A70. The remaining 12 Bacþ strains produce antimicrobial peptides that seem to be distinct from the best characterized staphylococcal bacteriocins described thus far. The bacteriocin produced by strain 4185 may possess potential practical applications, since it was able to inhibit important pathogens such as Bacillus cereus, Listeria monocytogenes, and Staphylococcus spp. isolated from nosocomial infections. MenosIn the present study, 257 Staphylococcus spp. strains were isolated from bovine mastitis cases in 56 different Brazilian dairy herds located in the southeast region of the country and tested for antimicrobial substance (AMS) production. Forty-six strains (17.9%) exhibited AMS production and their identification as Staphylococcus aureus was based on the presence of Gram-positive cocci and on positive results in tests for the ability to coagulate rabbit plasma, to ferment mannitol, and to produce acetoin. The AMS were characterized as bacteriocins (Bac) by their sensitivity to proteolytic enzymes. The Bacþ strains were tested for resistance to 14 antimicrobial agents showing different profiles. Eighteen strains (39.0%) expressed a multiple antibiotic resistance phenotype. Forty-five strains exhibited at least one plasmid DNA. Cross-immunity analysis against strain S. aureus A70, which produces aureocin A70, amplification of the aurABCD operon (which encodes aureocin A70) or detection of this same operon by DNA/DNA hybridization revealed that 34 strains produce bacteriocins either identical or similar to aureocin A70. The remaining 12 Bacþ strains produce antimicrobial peptides that seem to be distinct from the best characterized staphylococcal bacteriocins described thus far. The bacteriocin produced by strain 4185 may possess potential practical applications, since it was able to inhibit important pathogens such as Bacillus cereus, Listeria monocytogenes, and Staphylococcus s... Mostrar Tudo |
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Thesagro: |
Staphylococcus Aureus. |
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Thesaurus Nal: |
antimicrobial peptides; bacteriocins; bovine mastitis. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02247naa a2200217 a 4500
001 1697365
005 2023-03-24
008 2009 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.resmic.2009.07.007$2DOI
100 1 $aCEOTTO, H.
245 $aBacteriocin production by Staphylococcus aureus involved in bovine mastitis in Brazil.$h[electronic resource]
260 $c2009
520 $aIn the present study, 257 Staphylococcus spp. strains were isolated from bovine mastitis cases in 56 different Brazilian dairy herds located in the southeast region of the country and tested for antimicrobial substance (AMS) production. Forty-six strains (17.9%) exhibited AMS production and their identification as Staphylococcus aureus was based on the presence of Gram-positive cocci and on positive results in tests for the ability to coagulate rabbit plasma, to ferment mannitol, and to produce acetoin. The AMS were characterized as bacteriocins (Bac) by their sensitivity to proteolytic enzymes. The Bacþ strains were tested for resistance to 14 antimicrobial agents showing different profiles. Eighteen strains (39.0%) expressed a multiple antibiotic resistance phenotype. Forty-five strains exhibited at least one plasmid DNA. Cross-immunity analysis against strain S. aureus A70, which produces aureocin A70, amplification of the aurABCD operon (which encodes aureocin A70) or detection of this same operon by DNA/DNA hybridization revealed that 34 strains produce bacteriocins either identical or similar to aureocin A70. The remaining 12 Bacþ strains produce antimicrobial peptides that seem to be distinct from the best characterized staphylococcal bacteriocins described thus far. The bacteriocin produced by strain 4185 may possess potential practical applications, since it was able to inhibit important pathogens such as Bacillus cereus, Listeria monocytogenes, and Staphylococcus spp. isolated from nosocomial infections.
650 $aantimicrobial peptides
650 $abacteriocins
650 $abovine mastitis
650 $aStaphylococcus Aureus
700 1 $aNASCIMENTO, J. dos S.
700 1 $aBRITO, M. A. V. P. e
700 1 $aBASTOS, M. do C. de F.
773 $tResearch in Microbiology, Paris$gv. 160, p. 592-599, 2009.
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| 5. |  | SILVA, R. R. da; SILVA, F. F. da; CANDEIAS, A. L. B.; ARAUJO FILHO, J. C. de. Análise das classes de relevo e uso das terras no município de Petrolândia-PE, utilizando técnicas de geoprocessamento. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios. [Viçosa, MG]: SBCS; Fortaleza: UFC, 2009. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
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| 6. | | LOPES, H. L.; ACCIOLY, L. J. de O.; SOBRAL, M. do C. M.; CANDEIAS, A. L. B. Algoritmo para mapeamento de áreas de queimadas no bioma caatinga, nordeste do Brasil. In: INTERNATIONAL CONFERENCE: CLIMATE, SUSTAINABILITY AND DEVELOPMENT IN SEMI-ARID REGIONS, 2., 2010, Fortaleza. Anais... Fortaleza: ICID, 2010.| Tipo: Artigo em Anais de Congresso |
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| 9. | | LOPES, H. L.; ACCIOLY, L. J. de O.; SILVA, F. H. B. B. da; SOBRAL, M. do C. M.; ARAUJO FILHO, J. C. de; CANDEIAS, A. L. B. Espacialização da umidade do solo por meio da temperatura da superfície e índice de vegetação. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 15, n. 9, p. 973-980, set. 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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