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DNA extraction from amoebal isolates and genotype determination of Acanthamoeba from tap water in Latvia

Abstract

Acanthamoeba are free-living amoebae found in various ecological environments, and they are major microbial predators. Some Acanthamoeba species can cause keratitis, granulomatous amoebic encephalitis, and infections of the organs. This is the first study in Latvia describing Acanthamoeba detection by molecular techniques and genotyping using tap water from different sources. An 18S rRNA gene investigation of the 20 Acanthamoeba isolates suggested that 19 belonged to the hazardous T4 genotype and one sample was T12. The results indicate that tap water in Latvia may be a source of Acanthamoeba that is potentially pathogenic to humans. All obtained sequences were submitted to the GenBank database under the following accession numbers: MG386295–MG386314.

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Funding

This study was funded by National Research Programme No. 7, Agricultural Resources for Sustainable Production of Qualitative and Healthy Foods in Latvia project No. 5 “Resistance of microorganisms and other biological and chemical risks: research procedure development and application in the food chain.”

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Correspondence to Inese Gavarāne.

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The authors declare that they have no conflict of interest.

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Gavarāne, I., Trofimova, J., Mališevs, A. et al. DNA extraction from amoebal isolates and genotype determination of Acanthamoeba from tap water in Latvia. Parasitol Res 117, 3299–3303 (2018). https://doi.org/10.1007/s00436-018-5997-1

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  • DOI: https://doi.org/10.1007/s00436-018-5997-1

Keywords

  • Acanthamoeba
  • Tap water
  • 18S rDNA
  • Latvia