Results 21 to 30 of about 3,381 (162)

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

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

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

Quorum Sensing of Acidophiles: A Communication System in Microorganisms

, 2021
Communication is important for organisms living in nature. Quorum sensing system (QS) are intercellular communication systems that promote the sociality of microbes. Microorganisms could promote cell-to-cell cooperation and population density to adapt to the changing environment through QS-mediated regulation that is dependent on the secretion and the ...
Xueyan Gao, Jianqiang Lin, Linxu Chen, Jianqun Lin, Xin Pang   +4 more
openaire   +2 more sources

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

The effect of multiprobiotic “Symbiter acidophilus” on the intestinal microflora and functional activity of peritoneal macrophages in rats with glutamate-induced obesity

Біологічні студії, 2016
Significant decrease in number of members of Lactobacillus genus and the increase in the number of types of aerobic microorganisms E. coli and S. aureus in the faeces and in the biopsy of colonic wall were observed in rats with monosodium glutamate ...
V. V. Pozur, M. P. Rudyk, T. M. Serhiychuk, V. M. Svyatetska, I. V. Akulenko, D. S. Yankovskyy, G. S. Dyment, T. V. Beregova, L. I. Ostapchenko   +8 more
doaj   +1 more source

Isolation and Characterization of Thermophilic Enzymes Producing Microorganisms for Potential Therapeutic and Industrial Use

Journal of Pure and Applied Microbiology, 2018
The need of extremophile enzymes is increased. Such enzymes had found their utility in bio-industries such as leather, food, animal feed, textiles, and in bioconversions and bioremediation.
Hasnaa R. Temsaah, Ahmed F. Azmy, Mai Raslan, Amr E. Ahmed, Walaa G. Hozayen   +4 more
doaj   +1 more source