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Cultivable microbiome and its resistance to antimicrobials isolated from Zaprionus indianus

Graziele Aparecida Fernandes da Cruz1, Débora de Jesus Pires1, Luiz Artur Mendes Bataus2

  • 1State University of Goiás, 14 street, 327, Jardim América neighborhood, Morrinhos City, GO, 75650-000, Brazil.

Environmental Monitoring and Assessment
|September 30, 2018
PubMed

Insights

Zebrafish (Z. indianus) in parks harbor antibiotic-resistant bacteria and fungi, influenced by seasonal environmental factors. These findings highlight zebrafish as potential vectors for microorganisms affecting animal and human health.

Area of Science:

  • Microbiology
  • Environmental Science
  • Zoology

Background:

  • Zebrafish (Z. indianus) are aquatic species found in various environments.
  • Understanding the microbial communities associated with wildlife is crucial for public health.
  • Seasonal variations can impact animal populations and their associated microbiota.

Purpose of the Study:

  • To identify Z. indianus in PEJC and PESCAN parks.
  • To isolate and characterize bacteria and fungi inhabiting Z. indianus.
  • To assess the antibiotic resistance of isolated bacteria and the antifungal activity of fluconazole and ketoconazole.

Main Methods:

  • Bacterial and fungal isolation from Z. indianus integument across four seasons.
  • Antibiotic resistance testing (antibiogram) and plasmid profiling.
  • Fungal susceptibility testing against fluconazole and ketoconazole.

Main Results:

  • Enterobacteriaceae family bacteria predominated in both parks.
  • Significant differences in bacterial resistance were observed between park edges and interiors.
  • Trichophyton spp. was the most prevalent fungi; fluconazole and ketoconazole showed good inhibitory action.
  • 60% of antibiotic-resistant bacteria harbored plasmids.
  • Low Z. indianus populations correlated with high temperatures and low humidity.

Conclusions:

  • Z. indianus can act as vectors for potentially pathogenic microorganisms.
  • Seasonal environmental factors influence Z. indianus populations and their associated microbiota.
  • The presence of antibiotic-resistant bacteria and pathogenic fungi necessitates further investigation into public health risks.
Keywords:
BacteriaBiodiversityEnvironmentalMicroorganismResistanceVector

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