Resistência bacteriana e ação das bacteriocinas de Lactobacillus spp em Staphylococcus aureus isolados de mastite bovina / Bacterial resistance and bacteriocins action in Staphylococcus aureus isolated from bovine mastitis
Arq. bras. med. vet. zootec
;
63(3): 744-748, June 2011. tab
Artículo
en Portugués
| LILACS
| ID: lil-595594
ABSTRACT
Staphylococcus aureus is the major pathogen causing intramammary infections in dairy cattle worldwide. Among the factors that contribute to its spread and infectious potential is the ability to overcome the mechanisms of antimicrobials activity. The present work investigated the antimicrobial resistance pattern and sensibility to bacteriocins produced by strains of Lactobacillus spp of 30 isolates of S. aureus from mastitis. From this, 29 are beta-lactamase producers. Eight isolates (26.6 percent) showed resistance to at least four antibiotics being considered multiresistent. All of them were mecA-positive. Otherwise, all isolates tested showed sensibility to at least one of the four bacteriocin producer strains. Due to the significant depletion of the efficacy of antimicrobials, pathogen growth inhibition by bacteriocins seems an alternative of biological control in infectious processes.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Staphylococcus aureus
/
Bacteriocinas
/
Lactobacillus
/
Mastitis Bovina
Límite:
Animales
Idioma:
Portugués
Revista:
Arq. bras. med. vet. zootec
Asunto de la revista:
Medicina Veterinaria
Año:
2011
Tipo del documento:
Artículo
/
Documento de proyecto
País de afiliación:
Argentina
/
Brasil
Institución/País de afiliación:
Universidade Federal Rural do Rio de Janeiro/BR
/
Universidade Nacional de Rio Cuarto/AR
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