Results 21 to 30 of about 3,372 (165)

Evaluation of microbial diversity of the microbial mat from the extremely acidic Lake Robule (Bor, Serbia) [PDF]

Botanica Serbica, 2017
Extremely acidic environments are frequently formed in areas impacted by mining activities, and Lake Robule is such an ecosystem. Although an extreme environment, Lake Robule is inhabited by acidophilic microorganisms. We investigated biodiversity of the
Stanković Srđan, Vasiljević Branka, Jeremić Sanja, Cvetković Vladica, Morić Ivana   +4 more
doaj   +1 more source

Interesting Halophilic Sulphur-Oxidising Bacteria with Bioleaching Potential: Implications for Pollutant Mobilisation from Mine Waste

Microorganisms, 2023
For many years, research on the microbial-dissolution of metals from ores or waste materials mainly focussed on the study of acidophilic organisms.
Chiamaka Belsonia Opara, Nor Kamariah, Jeroen Spooren, Katrin Pollmann, Sabine Kutschke   +4 more
doaj   +1 more source

Heavy Metal Resistance Strategies of Acidophilic Bacteria and Their Acquisition: Importance for Biomining and Bioremediation

Biological Research, 2013
Microbial solubilizing of metals in acid environments is successfully used in industrial bioleaching of ores or biomining to extract metals such as copper, gold, uranium and others.
Claudio A Navarro, Diego von Bernath, Carlos A Jerez   +2 more
doaj   +1 more source

Prediction and Inferred Evolution of Acid Tolerance Genes in the Biotechnologically Important Acidihalobacter Genus

Frontiers in Microbiology, 2022
Acidihalobacter is a genus of acidophilic, gram-negative bacteria known for its ability to oxidize pyrite minerals in the presence of elevated chloride ions, a capability rare in other iron-sulfur oxidizing acidophiles.
Katelyn Boase, Carolina González, Eva Vergara, Gonzalo Neira, David Holmes, David Holmes, Elizabeth Watkin   +6 more
doaj   +1 more source

Shifts in the Microbial Populations of Bioleach Reactors Are Determined by Carbon Sources and Temperature

Biology, 2023
In the present study, the effect of additional carbon sources (carbon dioxide and molasses) on the bio-oxidation of a pyrite–arsenopyrite concentrate at temperatures of 40–50 °C was studied, and novel data regarding the patterns of the bio-oxidation of ...
Aleksandr Bulaev, Vitaliy Kadnikov, Yulia Elkina, Aleksey Beletsky, Vitaliy Melamud, Nikolai Ravin, Andrey Mardanov   +6 more
doaj   +1 more source

Transcriptomic analysis of chloride tolerance in Leptospirillum ferriphilum DSM 14647 adapted to NaCl.

PLoS ONE, 2022
Chloride ions are toxic for most acidophilic microorganisms. In this study, the chloride tolerance mechanisms in the acidophilic iron-oxidizing bacterium Leptospirillum ferriphilum DSM 14647 adapted to 180 mM NaCl were investigated by a transcriptomic ...
Javier Rivera-Araya, Thomas Heine, Renato Chávez, Michael Schlömann, Gloria Levicán   +4 more
doaj   +1 more source

High throughput screening of the potential biosurfactants production by extremophiles isolated from vinasse and black liquor

Results in Engineering, 2022
The aims of this work were to isolate microorganisms from vinasse (V) and black liquor (BL), by-products of alcohol and paper industries and to assess their potential as substrates to produce biosurfactants.
Mariano Rivero, Dolores Gutiérrez-Cacciabue, Diego Gastón Sanguino-Jorquera, Verónica Beatriz Rajal, Verónica Patricia Irazusta   +4 more
doaj   +1 more source

Effect of Carbon Sources on Pyrite-Arsenopyrite Concentrate Bio-oxidation and Growth of Microbial Population in Stirred Tank Reactors

Microorganisms, 2021
Tank bio-oxidation is a biohydrometallurgical technology widely used for metal recovery from sulfide concentrates. Since carbon availability is one of the key factors affecting microbial communities, it may also determine the rate of sulfide concentrate ...
Aleksandr Bulaev, Aleksandra Nechaeva, Yuliya Elkina, Vitaliy Melamud   +3 more
doaj   +1 more source

Artificial Neural Network Modeling for Prediction of Dynamic Changes in Solution from Bioleaching by Indigenous Acidophilic Bacteria

Applied Sciences, 2020
In this study, indigenous acidophilic bacteria living in mine drainage and hot acidic spring were collected and used for bioleaching experiments. The incubated indigenous acidophilic bacteria were inoculated on various minerals.
Jin-Kyu Kang, Kang-Hee Cho, Song-Bae Kim, Nag-Choul Choi   +3 more
doaj   +1 more source

Distribution of Acidophilic Microorganisms in Natural and Man-made Acidic Environments [PDF]

Current Issues in Molecular Biology, 2016
Acidophilic microorganisms can thrive in both natural and man-made environments. Natural acidic environments comprise hydrothermal sites on land or in the deep sea, cave systems, acid sulfate soils and acidic fens, as well as naturally exposed ore deposits (gossans).
Sabrina, Hedrich, Axel, Schippers
openaire   +2 more sources