Gilthead seabream (Sparus aurata) carrying antibiotic resistant enterococci. A potential bioindicator of marine contamination?

  1. Barros, J. 23
  2. Igrejas, G. 23
  3. Andrade, M. 23
  4. Radhouani, H. 23
  5. López, M. 1
  6. Torres, C. 1
  7. Poeta, P. 22
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Universidade de Trás-os-Montes e Alto Douro
    info

    Universidade de Trás-os-Montes e Alto Douro

    Vila Real, Portugal

    ROR https://ror.org/03qc8vh97

  3. 3 Instituto de Biotecnologia e Bioengenharia
    info

    Instituto de Biotecnologia e Bioengenharia

    Lisboa, Portugal

    ROR https://ror.org/05ws8g470

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Revista:
Marine Pollution Bulletin

ISSN: 0025-326X

Año de publicación: 2011

Volumen: 62

Número: 6

Páginas: 1245-1248

Tipo: Artículo

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DOI: 10.1016/J.MARPOLBUL.2011.03.021 PMID: 21511306 SCOPUS: 2-s2.0-79958719812 WoS: WOS:000292677000024 GOOGLE SCHOLAR

Otras publicaciones en: Marine Pollution Bulletin

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Resumen

Antibiotic resistance in bacteria is a growing problem that is not only restricted to the clinical setting but also to other environments such as marine species that harbor antibiotic resistant bacteria and therefore may serve as reservoirs for antibiotic-resistance genetic determinants. The aim of this study was to evaluate antibiotic resistance phenotypes in enterococci isolated from fecal samples of gilthead seabream and the associated mechanisms of resistance. A collection of 118 samples were analyzed and 73 enterococci were recovered. The strains showed high percentages of resistance to erythromycin and tetracycline (58.9% and 17.8%, respectively). Lower level of resistance (<13%) was detected for quinupristin-dalfopristin, ampicillin, high-level-gentamicin, high-level-streptomycin, high-level-kanamycin, ciprofloxacin and chloramphenicol. The erm(B), tet(L) or tet(M), aac(6')-aph(2″) and aph(3')-IIIa genes were shown in isolates resistant to erythromycin, tetracycline, high-level gentamicin and high-level kanamycin, respectively. Antibiotic resistance in natural microbiota is becoming a concern of human and environmental health. © 2011.