The Bacterial Population of Neutral Mine Drainage Water of Elizabeth’s Shaft (Slovinky, Slovakia)

Kisková, Jana; Perháčová, Zuzana; Vlčko, Ladislav; Sedláková, Jana; Kvasnová, Simona; Pristaš, Peter

doi:10.1007/s00284-018-1472-6

Cited by 14 publications

(2 citation statements)

References 60 publications

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“…Lindsay et al (2009a) also identified highly variable populations of neutrophilic SRB in sulfidic mine tailing sediment cores at neutral/ alkaline pH that corresponded with local hydrogeochemical conditions. Similarly, at a copper mine in Slovakia with neutral pH, but high sulfate mine drainage, sulfate-reducing or sulfate-oxidizing bacteria were found only at low abundances (Kisková et al 2018).…”

Section: Discussionmentioning

confidence: 99%

Subsidized or stressed? Shifts in freshwater benthic microbial metagenomics along a gradient of alkaline coal mine drainage

Bier

Wernegreen

Vilgalys

et al. 2019

Limnology & Oceanography

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Chemical pollution mixtures enter aquatic environments and interact with microorganisms in eclectic ways with disparate consequences for microbial ecosystem services. Can using a thermodynamic framework help to determine the net influence of a chemical mixture on the functional capacity of benthic microbial communities? We examined this question by comparing benthic stream microbial communities exposed to a gradient of neutral‐alkaline coalmine effluent. Using a combination of approaches (metagenomics, quantitative polymerase chain reaction [qPCR], and functional assays), we show that functional genes and pathways of microbial communities growing in mine effluent differed in composition, but not diversity. The majority of functional genes and pathways that changed decreased at sites exposed to mine effluent, resulting in lower abundances of nitrogenase and methanogen genes and fermentation pathways. However, selenate reductase gene abundance increased with water and sediment concentration of an ecologically important contaminant at mined sites: selenium. Denitrification genes nosZ and nirK differed between sites: metagenome‐based nosZ increased with dissolved nitrate concentration and qPCR‐based nirK had a hump‐shaped pattern across the mining gradient. Osmoprotectant gene abundance did not change. Extracellular enzyme assays and alkaline phosphatase gene relative abundance suggested that mined stream microbial communities may be constrained by phosphorus bioavailability. Subsidies and stressors related to changes in a set of functional genes and pathways, but differences were not consistently predictable using thermodynamic expectations. This suggests that pairing hypotheses for expected subsidies and stressors with post hoc explorations can yield valuable directions for future study of how microbial functional capacity responds to pollutant mixtures.

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Section: Discussionmentioning

confidence: 99%

Subsidized or stressed? Shifts in freshwater benthic microbial metagenomics along a gradient of alkaline coal mine drainage

Bier

Wernegreen

Vilgalys

et al. 2019

Limnology & Oceanography

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“…Dechloromonas sp. have been reported to both generate electricity in MFCs [87,88] and play an important role in the conversion of ferrous ions in Fe-contaminated soils or waters [89,90]. Li et al [91] observed that during municipal wastewater treatment in MFC coupled with an up-flow in denitrification biofilter abundance of Dechloromonas sp.…”

Section: Microbial Structure Of Inoculum and Anode Biofilm In The Mfcsmentioning

confidence: 99%

Anode Modification with Fe2O3 Affects the Anode Microbiome and Improves Energy Generation in Microbial Fuel Cells Powered by Wastewater

Nosek

Mikołajczyk

Cydzik‐Kwiatkowska

2023

IJERPH

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This study investigated how anode electrode modification with iron affects the microbiome and electricity generation of microbial fuel cells (MFCs) fed with municipal wastewater. Doses of 0.0 (control), 0.05, 0.1, 0.2, and 0.4 g Fe2O3 per the total anode electrode area were tested. Fe2O3 doses from 0.05 to 0.2 g improved electricity generation; with a dose of 0.10 g Fe2O3, the cell power was highest (1.39 mW/m2), and the internal resistance was lowest (184.9 Ω). Although acetate was the main source of organics in the municipal wastewater, propionic and valeric acids predominated in the outflows from all MFCs. In addition, Fe-modification stimulated the growth of the extracellular polymer producers Zoogloea sp. and Acidovorax sp., which favored biofilm formation. Electrogenic Geobacter sp. had the highest percent abundance in the anode of the control MFC, which generated the least electricity. However, with 0.05 and 0.10 g Fe2O3 doses, Pseudomonas sp., Oscillochloris sp., and Rhizobium sp. predominated in the anode microbiomes, and with 0.2 and 0.4 g doses, the electrogens Dechloromonas sp. and Desulfobacter sp. predominated. This is the first study to holistically examine how different amounts of Fe on the anode affect electricity generation, the microbiome, and metabolic products in the outflow of MFCs fed with synthetic municipal wastewater.

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Indigenous microbial populations of abandoned mining sites and their role in natural attenuation

Dey¹

2022

Arch Microbiol

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The Bacterial Population of Neutral Mine Drainage Water of Elizabeth’s Shaft (Slovinky, Slovakia)

Cited by 14 publications

References 60 publications

Subsidized or stressed? Shifts in freshwater benthic microbial metagenomics along a gradient of alkaline coal mine drainage

Subsidized or stressed? Shifts in freshwater benthic microbial metagenomics along a gradient of alkaline coal mine drainage

Anode Modification with Fe2O3 Affects the Anode Microbiome and Improves Energy Generation in Microbial Fuel Cells Powered by Wastewater

Indigenous microbial populations of abandoned mining sites and their role in natural attenuation

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