Results 61 to 70 of about 13,609 (251)

Bioleaching of realgar nanoparticles using the extremophilic bacterium Acidithiobacillus ferrooxidans DLC-5

Electronic Journal of Biotechnology, 2019
Background: This paper presents micro- and nano-fabrication techniques for leachable realgar using the extremophilic bacterium Acidithiobacillus ferrooxidans (A. ferrooxidans) DLC-5.
Ruixiang Xu, Peng Song, Jianghui Wang, Zhengrong Wu, Lei Yan, Wenbin Zhao, Yuheng Liu, Wantong Ma, Maria Latta, Hongyu Li, Peng Chen   +10 more
doaj   +1 more source

BACTERIAL LEACHING OF ELECTRONIC SCRAP: INFLUENCE OF PROCESS PARAMETERS [PDF]

Tecnologia em Metalurgia, Materiais e Mineração, 2013
The application of bacterial leaching in the ore treatment is already known and also can be applied such as treatment of electronic waste to copper recovery.
Luciana Harue Yamane, Denise Crocce Romano Espinosa, Jorge Alberto Soares Tenório   +2 more
doaj   +1 more source

Novel Strategy for Improvement of the Bioleaching Efficiency of Acidithiobacillus ferrooxidans Based on the AfeI/R Quorum Sensing System

Minerals, 2020
Acidithiobacillus ferrooxidans is an acidophilic and chemolithotrophic sulfur- and iron-oxidizing bacterium that has been widely used in the bioleaching process for extracting metals.
Xue-Yan Gao, Xiujie Liu, Chang-ai Fu, Xiuyan Gu, Jianqiang Lin, Xiang-mei Liu, Xin Pang, Jian-qun Lin, Linxu Chen   +8 more
semanticscholar   +1 more source

Interrelationship of hydrology, microbial colonisation and hydrometallurgy in a simulated chalcopyrite heap leach [PDF]

, 2008
Includes bibliographical references (leaves 104-115).Chalcopyrite is the most abundant primary copper sulphide mineral found worldwide. As copper grades of ores available for extraction decrease, heap bioleaching is gaining interest as a potential ...
Spurr, Nicholas Robert Louis
core  

Review and Integrated Framework for Deep‐Sea Mineral Resources, Ecological Influence, and Future Development

International Journal of Microbiology, Volume 2026, Issue 1, 2026.
As global industrialization advances and land‐based resources decline, deep‐sea resource development is becoming increasingly vital. The deep sea is rich in minerals such as polymetallic nodules, polymetallic sulfides, and cobalt‐rich crust. However, deep‐sea ecosystems and geochemical cycles can be severely impacted by extensive mineral mining.
Jia Liu, Can Wang, Ini-Ibehe Nabuk Etim, Ruiyong Zhang, Wolfgang Sand, Xiao Wang, Luhua Yang, Yanchen Ge, Jiazhi Liu, Ming-Ke Wang   +9 more
wiley   +1 more source

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

Quorum Sensing Signaling Molecules Positively Regulate c-di-GMP Effector PelD Encoding Gene and PEL Exopolysaccharide Biosynthesis in Extremophile Bacterium Acidithiobacillus thiooxidans †

Genes, 2021
Acidithiobacillus species are fundamental players in biofilm formation by acidophile bioleaching communities. It has been previously reported that Acidithiobacillus ferrooxidans possesses a functional quorum sensing mediated by acyl-homoserine lactones ...
M. Díaz, Diego San Martin, M. Castro, Mario Vera, N. Guiliani   +4 more
semanticscholar   +1 more source

Bioleaching of copper- and zinc-bearing ore using consortia of indigenous iron-oxidizing bacteria [PDF]

, 2018
Indigenous iron-oxidizing bacteria were isolated on modified selective 9KFe(2+) medium from Baiyin copper mine stope, China. Three distinct acidophilic bacteria were isolated and identified by analyzing the sequences of 16S rRNA gene.
Khan, Suliman, Ma, Xiangxian, Sajjad, Wasim, Xu, Wang, Zhang, Gaosen, Zheng, Guodong   +5 more
core   +1 more source

Molecular Mechanisms of Plant Growth–Promoting Rhizobacteria (PGPR) in Biofertilization and Disease Suppression of Crops

International Journal of Agronomy, Volume 2026, Issue 1, 2026.
Plant growth–promoting rhizobacteria (PGPR) are beneficial soil bacteria that colonize the rhizosphere and enhance plant growth through direct and indirect mechanisms, including nutrient solubilization, phytohormone production, suppression of phytopathogens, and activation of plant defense mechanisms.
Etsay Mesele, Gebremedhin Gebreslassie, Ashenafi Teklay Yaekob, Tesfakiros Semere, Maria Serrano   +4 more
wiley   +1 more source

Cytochromes in anaerobic growth of Acidithiobacillus ferrooxidans

Microbiology, 2018
The mineral sulfide-oxidising Acidithiobacillus ferrooxidans has been extensively studied over many years but some fundamental aspects of its metabolism remain uncertain, particularly with regard to its anaerobic oxidation of sulfur. This label-free, liquid chromatography-electron spray ionisation-mass spectrometry-based proteomic analysis estimated ...
Paul R, Norris, Ludovic, Laigle, Susan, Slade   +2 more
openaire   +2 more sources