o:1369 Bacteriome composition analysis of selected mineral water occurrences in Serbia en Abstract: Bacterial metabarcoding analysis by 16S rDNA of five occurrences of mineral waters in Serbia (Torda, Slankamen Banja, Lomnički Kiseljak, Velika Vrbnica and Obrenovačka Banja) indicated the presence of a high percentage of the Proteobacteria phylum, followed by the Bacteroidetes phylum. The families Rhodobacteraceae, Burkholderiaceae, Pseudomonadaceae, Methylophilaceae and Moraxellaceae were the most dominant in the bacterial flora of the selected occurrences, whereas the most represented genera were Acinetobacter, Pseudorhodobacter, Pseudomonas, Limnohabitans, Massilia, Limnobacter and Methylotenera. The presence of coliform bacteria was not detected. Alpha diversity analysis revealed that Slankamen Banja and Lomnički Kiseljak were the richest of the selected occurrences, while the mineral waters of Torda, Velika Vrbnica and Obrenovačka Banja were characterized by similar diversity of bacterial communities determined by beta diversity analysis. Physical-chemical analysis revealed the value of total dissolved solids above 1 g/L, as well as elevated concentrations of some metals and non-metals. The research concluded that specific bacteria contribute to the development of biocorrosion and biofouling processes of water intake facilities. In addition, some of these bacteria might be potential indicators of the organic sources of pollution and/or biotechnological natural remediators in the treatment of contaminated waters. mineral waters; bacterial metabarcoding analysis; 16S rDNA; alpha and beta diversity analysis; physical-chemical analysis 1552102 https://doi.org/10.2298/ABS211223005S 1552099 10.2298/ABS211223005S 1552101 0354-4664 2023-03-14T11:28:41.009Z 44 no 46 Vladimir Šaraba University of Belgrade, Faculty of Mining and Geology, Department of Hydrogeology Veselin Dragišić University of Belgrade, Faculty of Mining and Geology, Department of Hydrogeology person Tamara Janakiev University of Belgrade, Faculty of Biology, Chair of Biochemistry and Molecular Biology person Vesna Obradović Institut za vodoprivredu "Jaroslav Černi" person Milica Ćopić University of Belgrade, Faculty of Biology, Chair of Biochemistry and Molecular Biology person Branislav Knežević University of Priština in Kosovska Mitrovica, Faculty of Agriculture, Department of Crop and Vegetable Sciences person Ivica Dimkić University of Belgrade, Faculty of Biology, Chair of Biochemistry and Molecular Biology person application/pdf 2130970 https://unilib.phaidrabg.rs/o:1369 no yes 1 70 92000001 71A04 Archives of Biological Sciences 74 1 67 79 Serbian Biological Society, Institute for Biological Research "Siniša Stanković", Faculty of Biology, University of Belgrade, Department of Biology and Ecology, Faculty of Science, University of Novi Sad, Institute for the Application of Nuclear Energy 2022 Received: December 23, 2021; Revised: January 24, 2022; Accepted: January 27, 2022; Published online: February 7, 2022