Water-transmitted fungi are involved in degradation of concrete drinking water storage tanks

Novak Babič, Monika (avtor), Gunde-Cimerman, Nina (avtor)

Global warming, globalization, industrialization, and the rapidly growing population at present increasingly affect the production of safe drinking water. In combination with sustainable bio-based or recycled materials, used for water distribution systems, these factors promote emerging pathogens, including fungi. They can proliferate in oligotrophic water systems, affect the disinfection process, degrade building materials, and cause diseases in humans. In this study, we explored fungalbased degradation of modern concrete water storage tanks and the presence of fungi in chlorinated drinking water at the entrance and exit of the tanks. The degradation potential of isolated 52 fungal strains and their growth at different oligotrophic conditions was tested in vitro. Forty percent of strains grew at extremely oligotrophic conditions, and 50% classified as aerophilic. Two-thirds of tested strains produced acids, with Penicillium strains as the best producers. Only 29.7% of the strains were able to grow at 37 °C, and none of them was isolated from drinking water at consumers’ taps. Although not yet part of the guidelines for building materials in contact with drinking water, fungi should be taken into consideration in case of visible degradation. Their number of consumers’ endpoints should be checked to exclude possible health risks for consumers.

• Jezik: Angleški jezik
• Ključne besede: degradation, chlorination, drinking water, environmental factors, fungal contaminants, growth of fungi, materials in contact with drinking water, water storage tanks
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2021
• Št. strani: 16 str.
• Številčenje: Vol. 9, iss. 1, art. 160
• PID: 20.500.12556/RUL-134833
• UDK: 577
• ISSN pri članku: 2076-2607
• DOI: 10.3390/microorganisms9010160
• COBISS.SI-ID: 48801539
• Datum objave v RUL: 03.02.2022

Gradivo je del revije

• Naslov: Microorganisms
• Skrajšan naslov: Microorganisms
• Založnik: MDPI AG
• ISSN: 2076-2607
• COBISS.SI-ID: 523277081

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 12.01.2021

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: razgradnja, klorinacija, pitna voda, okoljski faktorji, glivni patogeni, rast gliv, materiali v stiku s pitno vodo, vodohrani

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: Z7-2668
• Naslov: Vpliv dezinfekcije in gradbenih materialov v stiku s pitno vodo na pojav oportuno patogenih in na azole rezistentnih gliv v pitni vodi

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P1-0198
• Naslov: Molekularno-biološke raziskave mikroorganizmov