Results 91 to 100 of about 3,299 (207)

Comparative genomic analysis of carbon and nitrogen assimilation mechanisms in three indigenous bioleaching bacteria: predictions and validations

BMC Genomics, 2008
Background Carbon and nitrogen fixation are essential pathways for autotrophic bacteria living in extreme environments. These bacteria can use carbon dioxide directly from the air as their sole carbon source and can use different sources of nitrogen such
Ehrenfeld Nicole, Ugalde Juan A, Levicán Gloria, Maass Alejandro, Parada Pilar   +4 more
doaj   +1 more source

Overexpression of AcoP in Acidithiobacillus ferrooxidans for Enhanced Copper Reclamation

, 2023
Copper is an essential critical metal that will be indispensable as we work to reduce our dependence on fossil fuel sources and move to electrification.
Yuta Inaba (5721440), Alan C. West (134137), Scott Banta (134146), Heejung Jung (1712437), Marco J. Castaldi (1277691), Juyun Kim (17009606), Tasnuva T. Moutushi (17009609)   +6 more
core   +1 more source

Toxin-Antitoxin Systems in the Mobile Genome of Acidithiobacillus ferrooxidans

PLoS ONE, 2014
Toxin-antitoxin (TA) systems are genetic modules composed of a pair of genes encoding a stable toxin and an unstable antitoxin that inhibits toxin activity. They are widespread among plasmids and chromosomes of bacteria and archaea. TA systems are known to be involved in the stabilization of plasmids but there is no consensus about the function of ...
Bustamante, Paula, Tello, Mario, Orellana, Omar   +2 more
openaire   +7 more sources

Resistencia extrema al cobre por un consorcio bacteriano conformado por Sulfobacillus spp. y Acidithiobacillus ferrooxidans

REBIOL, 2019
RESUMEN La sensibilidad al cobre por parte de microorganismos biolixiviadores es uno de los principales problemas que enfrenta la minería para mejorar los procesos de biolixiviación.
Omar D. Pairazamán Quiroz, José E. Neciosup Quesñay, Yeni S. Valdez Anco, Fabián A. Veliz De La Vega, Paola J. Barrios Cuevas, Heber M. Robles Castillo, Mario R. Esparza Mantilla   +6 more
doaj  

Acidithiobacillus ferrooxidans Leaching of Silica-Sulfide Gold Ores from May-Hibey Deposits, Tigray, Ethiopia

International Journal of Chemical Engineering
Oxidative leaching is an inexpensive alternative to using chemical cyanide extraction methods for gold from low-grade gold sulfide. Oxidation of finely ground gold-bearing ore by Acidithiobacillus ferrooxidans was evaluated in terms of cell density, pH ...
Goitom Gebreyohannes Berhe, Desta Berhe Sbhatu, Samuel Estifanos Gebre, Kiros Hagos Abay, Genet Gebryohannes Mhretu, Gebrekidan Mebrahtu Tesfamariam, Samuel Alemayehu Lapiso, Mulugeta Sisay Cheru, Afewerk Gebre Meressa   +8 more
doaj   +1 more source

Molecular characterization of Acidithiobacillus ferrooxidans and A-thiooxidans strains isolated from mine wastes in Brazil

, 2001
Nineteen strains of Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans, including 12 strains isolated from coal, copper, gold and uranium mines in Brazil, strains isolated from similar sources in other countries and the type strains of the ...
Ottoboni, LMM, Bergamo, R. F., Garcia, O., Paulino, L. C., de Mello, M. P., Manfio, G. P.   +5 more
core   +1 more source

The Effect of Specific Conditions on Cu, Ni, Zn and Al Recovery from PCBS Waste Using Acidophilic Bacterial Strains

Archives of Metallurgy and Materials, 2016
The objective of this work was to evaluate the influence of static, stirring and shaking conditions on copper, zinc, nickel and aluminium dissolution from printed circuit boards (PCBs) using the mixed acidophilic bacterial culture of Acidithiobacillus ...
Mrážiková A., Kaduková J., Marcinčáková R., Velgosová O., Willner J., Fornalczyk A., Saternus M.   +6 more
doaj   +1 more source

Differential expression of two bc1 complexes in the strict acidophilic chemolithoautotrophic bacterium Acidithiobacillus ferrooxidans suggests a model for their respective roles in iron or sulfur oxidation

, 2007
INDEXACIÓN: SCOPUS.Three strains of the strict acidophilic chemolithoautotrophic Acidithiobacillus ferrooxidans, including the type strain ATCC 23270, contain a petllABC gene cluster that encodes the three proteins, cytochrome c1, cytochrome b and a ...
Holmes, David S., Jedlicki, Eugenia, Appia-Ayme, Corinne, Bruscella, Patrice, Levicán, Gloria, Ratouchniak, Jeanine, Bonnefoy, Violaine   +6 more
core  

Microbial attachment to sulfide minerals in a bioleach environment

, 2009
Includes bibliographical references (leaves 119-125).This research pertains to bioleaching of copper containing ores with particular reference to the copper sulfide mineral chalcopyrite (CuFeS₂).
Africa, Cindy-Jade
core  

Heterogeneous Fenton-like degradation of phenanthrene catalyzed by schwertmannite biosynthesized using Acidithiobacillus ferrooxidans

, 2017
Heterogeneous Fenton-like degradation of phenanthrene in aqueous solution was investigated using schwertmannite biosynthesized by Acidithiobacillus ferrooxidans LX5 as a catalyst.
Lixiang Zhou, Wenzhu Wu, Su Yan, Guanyu Zheng, Xiaoqing Meng   +4 more
core   +1 more source