Phenotypic and molecular characterization of isolates of Staphylococcus spp. obtained from sheep milk Chapecó-SC

Authors

  • Alais Maria Dall Agnol Universidade do Oeste de Santa Catarina
  • Marielly Bastos Cavalcante Universidade Federal do Vale do São Francisco
  • Chirles Araújo de França Universidade Federal do Vale do São Francisco
  • Carina da Costa Krewer Universidade Federal Rural de Pernambuco
  • Anderson Antônio de Queiros Universidade do Oeste de Santa Catarina
  • Mateus Matiuzzi da Costa Universidade Federal do Vale do São Francisco
  • José Francisco Manta Bragança Universidade do Oeste de Santa Catarina
  • Lilian Kolling Girardini Universidade do Oeste de Santa Catarina

DOI:

https://doi.org/10.5433/1679-0359.2013v34n1p311

Keywords:

Mastitis, sheep, Resistance genes, Efflux pump, Biofilm, PCR.

Abstract

This study aimed to determine the antimicrobial susceptibility profile and to assess the presence of mechanisms of antimicrobial resistance in Staphylococcus spp. (n=36) isolated from mastitis in sheep’s Chapecó-SC. The potential for biofilm production was determined by phenotypic tests of Congo Red Agar, DAPI and Gentian Violet and by PCR for the detection of icaD gene. To evaluate the antimicrobial resistance testing was performed disk diffusion and detection of resistance genes blaZ, mecA, ermA, ermB and ermC and msrA also performed by PCR.The pump test was conducted by efuxo crop growth Muller Hinton agar containing ethidium bromide. The results showed that 1 (2,78%), 36 (100%) and 10 (27,78%) isolates were considered to produce a biofilm on Congo Red Agar test, Gentian Violet and DAPI, respectively, while the gene icaD was observed in only 2 (5.55%) isolates. The lowest percentage of sensitivity was observed for ampicillin (58.33%) and penicillin (58.33%). All strains tested were negative for the mecA, ermA, ermB and ermC genes. However, the isolates were positive for other resistance genes, being the blaZ and the msrA, with percentages of positivity of 58.33% and 11.11% respectively. Only one sample was positive for efflux pump test.

Author Biographies

Alais Maria Dall Agnol, Universidade do Oeste de Santa Catarina

Graduada em Medicina Veterinária pela Universidade do Oeste de Santa Catarina, UNOESC, Campus Xanxerê, Xanxerê, SC.

Marielly Bastos Cavalcante, Universidade Federal do Vale do São Francisco

Discente de Mestradoa em Ciência Animal, Universidade Federal do Vale do São Francisco, UNIVASF, Campus Ciências Agrárias, Petrolina, PE.

Chirles Araújo de França, Universidade Federal do Vale do São Francisco

Mestre em Ciência Animal, UNIVASF, Petrolina, PE.

Carina da Costa Krewer, Universidade Federal Rural de Pernambuco

Discente em Biociência Animal, Universidade Federal Rural de Pernambuco, UFRPE, Recife, PE.

Anderson Antônio de Queiros, Universidade do Oeste de Santa Catarina

Discente em Medicina Veterinária pela UNOESC, Campus Xanxerê, Xanxerê, SC.

Mateus Matiuzzi da Costa, Universidade Federal do Vale do São Francisco

 Prof. da UNIVASF, Campus Ciências Agrárias, Petrolina, PE.

José Francisco Manta Bragança, Universidade do Oeste de Santa Catarina

Prof. da UNOESC Campus Xanxerê, Xanxerê, SC.

Lilian Kolling Girardini, Universidade do Oeste de Santa Catarina

Profª da UNOESC Campus Xanxerê, Xanxerê, SC.

Published

2013-03-04

How to Cite

Dall Agnol, A. M., Cavalcante, M. B., França, C. A. de, Krewer, C. da C., Queiros, A. A. de, Costa, M. M. da, … Girardini, L. K. (2013). Phenotypic and molecular characterization of isolates of Staphylococcus spp. obtained from sheep milk Chapecó-SC. Semina: Ciências Agrárias, 34(1), 311–322. https://doi.org/10.5433/1679-0359.2013v34n1p311

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