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
Article
Dans Portugais
| 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.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Staphylococcus aureus
/
Bactériocines
/
Lactobacillus
/
Mammite bovine
Limites du sujet:
Animaux
langue:
Portugais
Texte intégral:
Arq. bras. med. vet. zootec
Thème du journal:
Médecine vétérinaire
Année:
2011
Type:
Article
/
descriptif de projet
Pays d'affiliation:
Argentine
/
Brésil
Institution/Pays d'affiliation:
Universidade Federal Rural do Rio de Janeiro/BR
/
Universidade Nacional de Rio Cuarto/AR
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