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Occurrence and hygienic relevance of fungi in drinking water

D Kanzler1, W Buzina, A Paulitsch

  • 1Institute of Hygiene, Medical University Graz, Graz, Austria.

Mycoses
|February 8, 2008
PubMed

Insights

Filamentous fungi and yeasts are prevalent in Austrian drinking water and groundwater. This study identified 32 fungal taxa, highlighting the potential for water to harbor opportunistic fungi impacting public health.

Area of Science:

  • Environmental microbiology
  • Water quality analysis
  • Public health

Background:

  • Filamentous fungi and yeasts are ubiquitous, found even in aquatic environments.
  • High fungal loads in water can negatively impact public health and food production.
  • Previous reports on fungal contamination in water exist globally, but not from Austria.

Purpose of the Study:

  • To investigate the prevalence and diversity of filamentous fungi and yeasts in Austrian drinking water and groundwater systems.
  • To establish a baseline understanding of fungal contamination in these water sources.

Main Methods:

  • Analysis of 38 water samples from drinking water and groundwater sources.
  • Fungal isolation using membrane filtration and cultivation on agar plates.
  • Identification of fungal taxa through routine and molecular techniques.

Main Results:

  • Fungi were detected in all analyzed water samples.
  • Mean fungal counts were 9.1 CFU/100 ml for drinking water and 5400 CFU/100 ml for groundwater.
  • 32 different fungal taxa were identified, with Cladosporium spp., Basidiomycetes, and Penicillium spp. being the most frequent.

Conclusions:

  • Drinking water systems can serve as reservoirs for various fungi, including opportunistic pathogens.
  • The presence of these fungi poses a potential risk to immunosuppressed individuals.
  • Further research is needed to assess the full public health implications of fungal contamination in drinking water.

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