Opening the black box of spring water microbiology from alpine karst aquifers to support proactive drinking water resource management

WIREs. Water
D SavioA H Farnleitner

Abstract

Over the past 15 years, pioneering interdisciplinary research has been performed on the microbiology of hydrogeologically well-defined alpine karst springs located in the Northern Calcareous Alps (NCA) of Austria. This article gives an overview on these activities and links them to other relevant research. Results from the NCA springs and comparable sites revealed that spring water harbors abundant natural microbial communities even in aquifers with high water residence times and the absence of immediate surface influence. Apparently, hydrogeology has a strong impact on the concentration and size of the observed microbes, and total cell counts (TCC) were suggested as a useful means for spring type classification. Measurement of microbial activities at the NCA springs revealed extremely low microbial growth rates in the base flow component of the studied spring waters and indicated the importance of biofilm-associated microbial activities in sediments and on rock surfaces. Based on genetic analysis, the autochthonous microbial endokarst community (AMEC) versus transient microbial endokarst community (TMEC) concept was proposed for the NCA springs, and further details within this overview article are given to prompt its future ev...Continue Reading

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Citations

Sep 2, 2020·Journal of the European Academy of Dermatology and Venereology : JEADV·M BourrainP Lebaron
Feb 28, 2019·International Microbiology : the Official Journal of the Spanish Society for Microbiology·Timothy SibandaMemory Tekere
Dec 4, 2019·The Science of the Total Environment·Shizheng XiangXiangyu Guan
Aug 8, 2020·The Science of the Total Environment·Alex H S ChikJack F Schijven

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Methods Mentioned

BETA
Fluorescence
electrophoresis
flow cytometry
nucleic acid sequencing
PCR

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