Journal articles: 'Biomining'

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Johnson, D. Barrie. "Biomining goes underground." Nature Geoscience 8, no. 3 (February 27, 2015): 165–66. http://dx.doi.org/10.1038/ngeo2384.

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Sansom, Clare. "Using Bacteria for Biomining." Frontiers in Ecology and the Environment 3, no. 4 (May 2005): 182. http://dx.doi.org/10.2307/3868455.

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Das, A. P., L. B. Sukla, N. Pradhan, and S. Nayak. "Manganese biomining: A review." Bioresource Technology 102, no. 16 (August 2011): 7381–87. http://dx.doi.org/10.1016/j.biortech.2011.05.018.

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Kaksonen, Anna H., Naomi J. Boxall, Tsing Bohu, Kayley Usher, Christina Morris, Pan Yu Wong, and Ka Yu Cheng. "Recent Advances in Biomining and Microbial Characterisation." Solid State Phenomena 262 (August 2017): 33–37. http://dx.doi.org/10.4028/www.scientific.net/ssp.262.33.

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Since the discovery of bioleaching microorganisms and their role in metal extraction in the 1940s, a number of technical approaches have been developed to enhance microbially catalysed solubilisation of metals from ores, concentrates and waste materials. Biomining has enabled the transformation of uneconomic resources to reserves, and thus help to alleviate the challenges related to continually declining ore grades. The rapid advancement of microbial characterisation methods has vastly increased our understanding of microbial communities in biomining processes. The objective of this paper is to review the recent advances in biomining processes and microbial characterisation.

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Jerez, C. A. "Chemotactic transduction in biomining microorganisms." Hydrometallurgy 59, no. 2-3 (February 2001): 347–56. http://dx.doi.org/10.1016/s0304-386x(00)00177-8.

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Wijewardena, Udeshika, Ian Macreadie, and Anna H. Kaksonen. "Microbes at the extreme: Mining with microbes." Microbiology Australia 33, no. 3 (2012): 116. http://dx.doi.org/10.1071/ma12116.

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The use of microorganisms to recover precious and base metals from mineral ores and concentrates is called biomining, or biohydrometallurgical processing. Biomining occurs through the natural ability of certain microorganisms to catalyse reactions, leading to the solubilisation of metals from the minerals. This process is used today in commercial operations to recover copper, nickel, cobalt, zinc and uranium from complex ores.

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Kundu, K., and A. Kumar. "Biochemical Engineering Parameters for Hydrometallurgical Processes: Steps towards a Deeper Understanding." Journal of Mining 2014 (April 27, 2014): 1–10. http://dx.doi.org/10.1155/2014/290275.

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Increasing interest in biomining process and the demand for better performance of the process has led to a new insight toward the mining technologies. From an engineering point of view, the complex network of biochemical reactions encompassed in biomining would best be performed in reactors which allow a good control of the significant variables, resulting in a better performance. The subprocesses are in equilibrium when the rate of particular metal ion; for example, iron turnover between the mineral and the bacteria, is balanced. The primary focus is directed towards improved bioprocess kinetics of the first two subprocesses of chemical reaction of the metal ion with the mineral and later bacterial oxidation. These subprocesses are linked by the redox potential and controlled by maintenance of an adequate solids suspension, dilution rate, and uniform mixing which are optimised in bioreactors during mining operations. Rate equations based on redox potential such as ferric/ferrous-iron ratio have been used to describe the kinetics of these subprocesses. This paper reviews the basis of process design for biomining process with emphasis on engineering parameters. It is concluded that the better understanding of these engineering parameters will make biomining processes more robust and further help in establishing it as a promising and economically feasible option over other hydrometallurgical processes worldwide.

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Chen, Bo Wei, Jian Kang Wen, and Guo Cheng Yao. "Acidophiles and its Use in Mineral Biomining with Emphasis on China." Advanced Materials Research 926-930 (May 2014): 4201–4. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.4201.

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Acidophiles have been widely used in heap and dump bioleaching of secondary copper sulfide ores and biooxidation of refractory gold ores. 22 genera of acidophiles have been found in biomining environments. This paper gives a preliminary introduction to the application of mineral biomining in China. Challenges and technical trends for heap bioleaching of primary copper sulfide ores, purification of bioleaching solution of polymetallic sulfide ores and biooxidation of carbonaceous refractory gold ores are also recommended.

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BARRIE JOHNSON, DAVID. "Biomining: an Established and Dynamic Biotechnology." Microbiology Indonesia 6, no. 4 (December 2012): 189–93. http://dx.doi.org/10.5454/mi.6.4.7.

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Zammit, Carla M., L. A. Mutch, Helen R. Watling, and Elizabeth L. J. Watkin. "Nucleic Aacid Extraction from Biomining Microorganisms." Advanced Materials Research 71-73 (May 2009): 159–62. http://dx.doi.org/10.4028/www.scientific.net/amr.71-73.159.

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Various methods of nucleic acid (NA) extraction were investigated with the aim of developing a quantitative method of NA extraction from five representative strains of biomining microorganisms. The process of removing cells from mineral surfaces, lysing microorganisms, precipitating NA and purifying RNA were analysed. The success of each method was examined spectrophotometrically, by agarose gel electrophoresis and PCR or quantitative real time PCR (qPCR). The most important step was shown to be cellular lysis, which principally impacted on the quantity of NA extracted from each strain. The quantity and quality of extracted NA was highly dependent on the method of NA precipitation. This study resulted in the development of a NA extraction method that reliably and reproducibly extracted NA from five strains of biomining microorganisms.

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Valenzuela, Lissette, An Chi, Simon Beard, Alvaro Orell, Nicolas Guiliani, Jeff Shabanowitz, Donald F. Hunt, and Carlos A. Jerez. "Genomics, metagenomics and proteomics in biomining microorganisms." Biotechnology Advances 24, no. 2 (March 2006): 197–211. http://dx.doi.org/10.1016/j.biotechadv.2005.09.004.

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BRIERLEY, C. L. "How will biomining be applied in future?" Transactions of Nonferrous Metals Society of China 18, no. 6 (December 2008): 1302–10. http://dx.doi.org/10.1016/s1003-6326(09)60002-9.

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Castro, M., Lina María Ruíz, A. Barriga, Carlos A. Jerez, David S. Holmes, and Nicolas Guiliani. "C-di-GMP Pathway in Biomining Bacteria." Advanced Materials Research 71-73 (May 2009): 223–26. http://dx.doi.org/10.4028/www.scientific.net/amr.71-73.223.

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Acidithiobacillus ferrooxidans, A. thiooxidans, and A. caldus are acidophilic Gram-negative -proteobacteria involved in the bioleaching of metal sulfides. Bacterial attachment to mineral surface and biofilm development play a pivotal role in this process. Therefore, the understanding of biofilm formation has relevance to the design of biological strategies to improve the efficiency of bioleaching processes. For this reason, our laboratory is focused on the characterization of the molecular mechanisms involved in biofilm formation in biomining bacteria. In many bacteria, the intracellular level of c-di-GMP molecules regulates the transition from the motile planktonic state to sessile community-based behaviors, such as biofilm development. Thus, we recently started the study of c-di-GMP pathway in biomining bacteria. C-di-GMP molecules are synthesized by diguanylate cyclases (DGCs) and degraded by phosphodiesterases (PDEs). So far, two kinds of effectors have been identified, including three protein families (pilZ, PleD and FleQ) and a conserved RNA domain (GEMM) which acts as a riboswitch. We previously reported the existence of different molecular players involved in c-di-GMP pathway in A. ferrooxidans ATCC 23270. Here, we expanded our work to other Acidithioibacillus species: A. thiooxidans ATCC 19377 and A. caldus ATCC 51756. In both, we identified several putative-ORFs encoding DGC, PDE and effector proteins. By using total RNA extracted from A. ferrooxidans and A. caldus cells in RT-PCR and qPCR experiments, we demonstrated that these genes are expressed. In addition, we characterized the presence of c-di-GMP in A. ferrooxidans ATCC 23270 and A. caldus ATCC 51756 cell extracts. Taken together, these results strongly suggest that A. ferrooxidans, A. caldus and A. thiooxidans possess functional c-di-GMP pathways. As it occurs in other Gram-negative bacteria, this pathway should be involved in the regulation of the planktonic/biofilm switch. In the future, we have to integrate this new biological dimension to improve the biological understanding of bioleaching.

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Zammit, Carla M., L. A. Mutch, Helen R. Watling, and Elizabeth L. J. Watkin. "The Characterization of Salt Tolerance in Biomining Microorganisms and the Search for Novel Salt Tolerant Strains." Advanced Materials Research 71-73 (May 2009): 283–86. http://dx.doi.org/10.4028/www.scientific.net/amr.71-73.283.

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In this study an acidic saline drain in the Western Australian wheat belt was sampled and enriched for salt tolerant chemolithotrophic microorganisms in acidic media containing up to 100 gL-1 NaCl. A mixed consortium was obtained which grows at pH 1.8 and oxidises iron (II) in the presence of up to 30 gL-1 NaCl. In comparative tests (growth rates and iron (II) oxidation rates) it was found that NaCl concentrations >3.5 gL-1 generally cause reduced growth and iron (II) oxidation rates in known biomining organisms. The results help to set a benchmark for NaCl tolerance in known biomining microorganisms and will lead to the generation of a consortium of microorganisms that can oxidise iron (II) effectively in saline process water.

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Quatrini, Raquel, Verónica Martínez, Hector Osorio, Felipe A. Veloso, Inti Pedroso, Jorge H. Valdés, Eugenia Jedlicki, and David S. Holmes. "Iron Homeostasis Strategies in Acidophilic Iron Oxidizers: Comparative Genomic Analyses." Advanced Materials Research 20-21 (July 2007): 531–34. http://dx.doi.org/10.4028/www.scientific.net/amr.20-21.531.

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An understanding of the physiology and metabolic complexity of microbial consortia involved in metal solubilization is a prerequisite for the rational improvement of bioleaching technologies. Among the most challenging aspects that remain to be addressed is how aerobic acidophiles, especially Fe(II)-oxidizers, contend with the paradoxical hazards of iron overload and iron deficiency, each with deleterious consequences for growth. Homeostatic mechanisms regulating the acquisition, utilization/oxidation, storage and intracellular mobilization of cellular iron are deemed to be critical for fitness and survival of bioleaching microbes. In an attempt to contribute to the comprehensive understanding of the biology and ecology of the microbial communities in bioleaching econiches, we have used comparative genomics and other bioinformatic tools to reconstruct the iron management strategies in newly sequenced acidithiobacilli and other biomining genomes available in public databases. Species-specific genes have been identified with distinctive functional roles in iron management as well as genes shared by several species in biomining consortia. Their analysis contributes to our understanding of the general survival strategies in acidic and iron loaded environments and suggests functions for genes with currently unknown functions that might reveal novel aspects of iron response in acidophiles. Comprehensive examination of the occurrence and conservation of regulatory functions and regulatory sites also allowed the prediction of the metal regulatory networks for these biomining microbes.

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Klas, Michael, Naomi Tsafnat, Joel Dennerley, Sabrina Beckmann, Barnaby Osborne, Andrew G. Dempster, and Mike Manefield. "Biomining and methanogenesis for resource extraction from asteroids." Space Policy 34 (November 2015): 18–22. http://dx.doi.org/10.1016/j.spacepol.2015.08.002.

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Mewis, Keith, Zachary Armstrong, Young C. Song, Susan A. Baldwin, Stephen G. Withers, and Steven J. Hallam. "Biomining active cellulases from a mining bioremediation system." Journal of Biotechnology 167, no. 4 (September 2013): 462–71. http://dx.doi.org/10.1016/j.jbiotec.2013.07.015.

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Maass, Danielle, Morgana de Medeiros Machado, Beatriz Cesa Rovaris, Adriano Michael Bernardin, Débora de Oliveira, and Dachamir Hotza. "Biomining of iron-containing nanoparticles from coal tailings." Applied Microbiology and Biotechnology 103, no. 17 (July 10, 2019): 7231–40. http://dx.doi.org/10.1007/s00253-019-10001-2.

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Jerez, Carlos A. "Biomining in the Post-Genomic Age: Advances and Perspectives." Advanced Materials Research 20-21 (July 2007): 389–400. http://dx.doi.org/10.4028/www.scientific.net/amr.20-21.389.

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Systems Microbiology is a new way to approach research in microbiology. The idea is to treat the microorganism or community as a whole, integrating fundamental biological knowledge with OMICS research (genomics, proteomics, transcriptomics, metabolomics) and bioinformatics to obtain a global picture of how a microbial cell operates in the community. The oxidative reactions resulting in the extraction of dissolved metal values from ores is the outcome of a consortium of different microorganisms. Therefore, this bioleaching community is particularly amenable for the application of Systems Microbiology. As more genomic sequences of different biomining microorganisms become available, it will be possible to define the molecular adaptations of bacteria to their environment, the interactions between the members of the community and to predict favorable or negative changes to efficiently control metal solubilization. Some key phenomena to understand the process of biomining are biochemistry of iron and sulfur compound oxidation, bacteria-mineral interactions (chemotaxis, cell-cell communication, adhesion, biofilm formation) and several adaptive responses allowing the microorganisms to survive in a bioleaching environment. These variables should be considered in an integrative way from now on. Together with recently developed molecular methods to monitor the behavior and evolution of microbial participants during bioleaching operations, Systems Microbiology will offer a comprehensive view of the bioleaching community. The power of the OMICS approaches will be briefly reviewed. It is expected they will provide not only exciting new findings but also will allow predictions on how to keep the microbial consortium healthy and therefore efficient during the entire process of bioleaching.

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le Clercq, M. "Hydrothermal processing of nickel containing biomining or bioremediation biomass." Biomass and Bioenergy 21, no. 1 (July 2001): 73–80. http://dx.doi.org/10.1016/s0961-9534(01)00010-1.

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Jandieri, Gigo, David Sakhvadze, and Aza Raphava. "Manganese Biomining from Manganese-Bearing Industrial Wastes of Georgia." Journal of The Institution of Engineers (India): Series D 101, no. 2 (September 26, 2020): 303–16. http://dx.doi.org/10.1007/s40033-020-00235-0.

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Drewniak, L., and A. Sklodowska. "Arsenic-transforming microbes and their role in biomining processes." Environmental Science and Pollution Research 20, no. 11 (January 9, 2013): 7728–39. http://dx.doi.org/10.1007/s11356-012-1449-0.

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Acevedo, Fernando. "ChemInform Abstract: The Use of Reactors in Biomining Processes." ChemInform 32, no. 27 (May 25, 2010): no. http://dx.doi.org/10.1002/chin.200127263.

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Song, Jin Long, Shuang Jiang Liu, and Cheng Ying Jiang. "Bioleaching of Chalcopyrite by Thermophilic Archaea." Advanced Materials Research 1130 (November 2015): 338–41. http://dx.doi.org/10.4028/www.scientific.net/amr.1130.338.

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Bioleaching and biooxidation of sulfidicores and concentrates generate very high acidities and a great of heat, which rise the temperature in the reactors or heaps, and accumulate the sulfur on the surface of the ores. Extremely thermoacidophilic archaea, mainly from the genus ofAcidianus, Sulfolobus,Metallosphaeraandsulfurisphaera, have great potential to contribute to biomining processes for their inherent tolerance for low pH, high temperature, and high-soluble metal concentrations. Species of the genusMetallosphaeratypically grow by aerobic respiration on CO2with S0, tetrathionate (S4O62+), and Fe2+as electron donors, particularly suitble for metal extraction under high temperature by their iron- and sulfur-oxidation ability. Several species fromMetallosphaeraandAcidianusgenerawere investigated for their ability and conditions to dissolve various ores under a range of conditions. All of them showed good performance in copper extraction from chalcopyrite, with strainM.cuprinaAr-4 displaying higher activity than others. Surface analysis of chalcopyrite leached with the strain showed the leaching products accumulated on the ores. Our study will cover new understandings on the application of these thermoacidophilic archaea in biomining.

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Shmaryahu, Amir, C. Lefimil, Eugenia Jedlicki, and David S. Holmes. "Small Regulatory RNAs in Acidithiobacillus Ferrooxidans: Case Studies of 6S RNA and Frr." Advanced Materials Research 71-73 (May 2009): 191–94. http://dx.doi.org/10.4028/www.scientific.net/amr.71-73.191.

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Bioinformatic approaches are described for the discovery of small regulatory RNAs (srRNAs) in the biomining microorganism Acidithiobacillus ferrooxidans. Intergenic regions of the annotated genome were extracted and computationally searched for srRNAs. Candidate srRNAs that were associated with predicted sigma 70 promoters and/or rho-independent terminators were chosen for further study. Experimental validation is presented for 6S srRNA and frr. srRNAs are known to control gene expression in a wide variety of microorganisms, usually at the post-transcriptional level, by acting as antisense RNAs that bind targeted mRNAs or by interacting with regulatory proteins. srRNAs are involved in the regulation of a large variety of processes. Frr is an RNA antisense to fur; the latter encodes a global regulator involved the control of a large number of genes involved in iron uptake and homeostasis. Because of the widespread occurrence and extensive repertoire of regulatory functions afforded by srRNAs, it is expected that their discovery functional analysis in biomining microorganisms will contribute to improving our understanding of the microbiology of bioleaching processes.

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Varela, Patricia, Gloria Levicán, Francisco Rivera, and Carlos A. Jerez. "An Immunological Strategy To Monitor In Situ the Phosphate Starvation State in Thiobacillus ferrooxidans." Applied and Environmental Microbiology 64, no. 12 (December 1, 1998): 4990–93. http://dx.doi.org/10.1128/aem.64.12.4990-4993.1998.

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ABSTRACT Thiobacillus ferrooxidans is one of the chemolithoautotrophic bacteria important in industrial biomining operations. During the process of ore bioleaching, the microorganisms are subjected to several stressing conditions, including the lack of some essential nutrients, which can affect the rates and yields of bioleaching. When T. ferrooxidans is starved for phosphate, the cells respond by inducing the synthesis of several proteins, some of which are outer membrane proteins of high molecular weight (70,000 to 80,000). These proteins were considered to be potential markers of the phosphate starvation state of these microorganisms. We developed a single-cell immunofluorescence assay that allowed monitoring of the phosphate starvation condition of this biomining microorganism by measuring the increased expression of the surface proteins. In the presence of low levels of arsenate (2 mM), the growth of phosphate-starved T. ferrooxidans cells was greatly inhibited compared to that of control nonstarved cells. Therefore, the determination of the phosphorus nutritional state is particularly relevant when arsenic compounds are solubilized during the bioleaching of different ores.

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Ramos-Zúñiga, Javiera, Sebastián Gallardo, Cristóbal Martínez-Bussenius, Rodrigo Norambuena, Claudio A. Navarro, Alberto Paradela, and Carlos A. Jerez. "Response of the biomining Acidithiobacillus ferrooxidans to high cadmium concentrations." Journal of Proteomics 198 (April 2019): 132–44. http://dx.doi.org/10.1016/j.jprot.2018.12.013.

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Martínez, Patricio, and Pilar Parada. "BioSigma Bioleaching Seeds (BBS): A New Technology for Managing Bioleaching Microorganisms." Advanced Materials Research 825 (October 2013): 305–8. http://dx.doi.org/10.4028/www.scientific.net/amr.825.305.

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In Bioleaching, although it is already prove that chalcopyrite can be dissolved by microorganisms, a major task is to do it efficiently in economical terms at industrial scale. BioSigma Bioleaching Seeds (BBS) represents a biotechnological breakthrough for the production of bioleaching solutions on demand with high concentrations of biomining microorganisms. This innovation is mainly a product based on the encapsulation of BioSigma bioleaching microorganisms in a natural matrix of alginate. This technology gives the following operational advantages: 1. High concentration of inoculum. 2. Long period of inoculum storage (more than 1 year). 3. Reduction of volume and costs of transport of bioleaching solutions. 4. Homogeneous mineral inoculation; uniform inoculation of the ore using solid capsules. 5. Protection against toxic elements to retain the viability and activity of the bioleaching solutions. 6. Addition of additives for incorporation of nutrients or other molecules that enhance the activity. 7. Encapsulation of different bioleaching microorganisms producing specific "bioleaching seeds" for each biohydrometallurgical process. All the above advantages make this new technology a very attractive alternative to enhance bioleaching processes at on site operations and overcome stressful conditions for biomining microorganisms.

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Johnson, D. "The Evolution, Current Status, and Future Prospects of Using Biotechnologies in the Mineral Extraction and Metal Recovery Sectors." Minerals 8, no. 8 (August 8, 2018): 343. http://dx.doi.org/10.3390/min8080343.

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The current global demand in terms of both the amounts and range of metals for industrial and domestic use greatly exceeds that at any previous time in human history. Recycling is inadequate to meet these needs and therefore mining primary metal ores will continue to be a major industry in the foreseeable future. The question of how metal mining can develop in a manner which is less demanding of energy and less damaging of the environment in a world whose population is increasingly aware of, and concerned about, the environment, requires urgent redress. Increased application of biotechnologies in the mining sector could go some way in solving this conundrum, yet, biomining (harnessing microorganisms to enhance the recovery of base and precious metals) has remained a niche application since it was first knowingly used in the 1960s. This manuscript reviews the development and current status of biomining applications and highlights their limitations as well as their strengths. New areas of biotechnology that could be applied in the mining sector, and their potential impact in terms of both their potential environmental and economic benefits, are also discussed.

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Zammit, Carla M., L. A. Mutch, Helen R. Watling, and Elizabeth L. J. Watkin. "Quantification of Biomining Microorganisms Using Quantitative Real-Time Polymerase Chain Reaction." Advanced Materials Research 20-21 (July 2007): 457–60. http://dx.doi.org/10.4028/www.scientific.net/amr.20-21.457.

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Amaro, Ana M., Kevin B. Hallberg, E. Börje Lindström, and Carlos A. Jerez. "An Immunological Assay for Detection and Enumeration of Thermophilic Biomining Microorganisms." Applied and Environmental Microbiology 60, no. 9 (1994): 3470–73. http://dx.doi.org/10.1128/aem.60.9.3470-3473.1994.

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Ehrenfeld, N., Andres Aravena, A. Reyes-Jara, M. Barreto, R. Assar, A. Maass, and Pilar Parada Valdecantos. "Design and Use of Oligonucleotide Microarrays for Identification of Biomining Microorganisms." Advanced Materials Research 71-73 (May 2009): 155–58. http://dx.doi.org/10.4028/www.scientific.net/amr.71-73.155.

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Results from a high density microarray having 32,392 50-mer oligonucleotides, termed BMS2.1, were analyzed and used for the design of a new slide, called BMS 3.0, with 560 specific oligonucleotides manufactured in standard slides to be used in any open platform. Hybridizations of several samples, either known microorganisms or environmental samples, were performed. Automatic microarray analysis software was built in order to handle these data in a quick an efficient way. While oligonucleotides designed for microorganisms with known genome sequence showed a very good behavior, according to predicted design, variations were detected when different strains were hybridized, probably due to inadequate specificity of probes. Appropriate parameterization of the analysis software will improve prediction of presence for most of the microorganisms.

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Jerez, Carlos A. "Biomining of metals: how to access and exploit natural resource sustainably." Microbial Biotechnology 10, no. 5 (August 3, 2017): 1191–93. http://dx.doi.org/10.1111/1751-7915.12792.

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Yates, James R., John H. Lobos, and David S. Holmes. "The use of genetic probes to detect microorganisms in biomining operations." Journal of Industrial Microbiology 1, no. 2 (June 1986): 129–35. http://dx.doi.org/10.1007/bf01569321.

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Loudon, Claire-Marie, Natasha Nicholson, Kai Finster, Natalie Leys, Bo Byloos, Rob Van Houdt, Petra Rettberg, et al. "BioRock: new experiments and hardware to investigate microbe–mineral interactions in space." International Journal of Astrobiology 17, no. 4 (July 24, 2017): 303–13. http://dx.doi.org/10.1017/s1473550417000234.

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AbstractIn this paper, we describe the development of an International Space Station experiment, BioRock. The purpose of this experiment is to investigate biofilm formation and microbe–mineral interactions in space. The latter research has application in areas as diverse as regolith amelioration and extraterrestrial mining. We describe the design of a prototype biomining reactor for use in space experimentation and investigations onin situResource Use and we describe the results of pre-flight tests.

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Valdés, Jorge H., and David S. Holmes. "Genomic Lessons from Biomining Organisms: Case Study of the Acidithiobacillus Genus." Advanced Materials Research 71-73 (May 2009): 215–18. http://dx.doi.org/10.4028/www.scientific.net/amr.71-73.215.

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Advances in DNA sequencing technologies have promoted the use of genome information as a key component in most of biological studies. In the case of biomining microorganisms, partial and complete genome information has provided critical clues for unraveling their physiology. This information has also provided genetic material for the generation of functional and biodiversity directed markers. In this work, we present a compilation of the most relevant findings based on genomic analysis of the model organism Acidithiobacillus ferrooxidans ATCC23270 that were extended and compared to the recently sequenced genomes of Acithiobacillus thiooxidans and Acidithiobacillus caldus. The phylogenetic relatedness of these three microorganisms has permitted the identification of a shared genomic core that encodes the common metabolic and regulatory functions critical for survival and proliferation in extremely acidic environments. We also identified microorganism-specific genomic components that are predicted to be responsible for the metabolic speciation of these microorganisms. Finally, we evaluated the impact of lateral gene transfer on these genomes in order to determine the functional contribution of this phenomenon to the fitness of these microbial representatives. The information gathered by genomic analyses in the Acidithiobacillus genus will be presented in conjunction with other biomining genomic and metagenomic information in order to generate a more comprehensive picture of the biodiversity, metabolism and ecophysiology of the bioleaching niche.

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Gumulya, Yosephine, Naomi Boxall, Himel Khaleque, Ville Santala, Ross Carlson, and Anna Kaksonen. "In a quest for engineering acidophiles for biomining applications: challenges and opportunities." Genes 9, no. 2 (February 21, 2018): 116. http://dx.doi.org/10.3390/genes9020116.

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Johnson, D. Barrie, and Chris A. du Plessis. "Biomining in reverse gear: Using bacteria to extract metals from oxidised ores." Minerals Engineering 75 (May 2015): 2–5. http://dx.doi.org/10.1016/j.mineng.2014.09.024.

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Rawlings, Douglas E., and D. Barrie Johnson. "The microbiology of biomining: development and optimization of mineral-oxidizing microbial consortia." Microbiology 153, no. 2 (February 1, 2007): 315–24. http://dx.doi.org/10.1099/mic.0.2006/001206-0.

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Johnson, D. Barrie. "Biomining—biotechnologies for extracting and recovering metals from ores and waste materials." Current Opinion in Biotechnology 30 (December 2014): 24–31. http://dx.doi.org/10.1016/j.copbio.2014.04.008.

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Liao, Xiaojian, Shuiyu Sun, Siyu Zhou, Maoyou Ye, Jialin Liang, Jinjia Huang, Zhijie Guan, and Shoupeng Li. "A new strategy on biomining of low grade base-metal sulfide tailings." Bioresource Technology 294 (December 2019): 122187. http://dx.doi.org/10.1016/j.biortech.2019.122187.

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Sivula, Leena, Eeva-Riikka Vehniäinen, Anna K. Karjalainen, and Jussi V. K. Kukkonen. "Toxicity of biomining effluents to Daphnia magna: Acute toxicity and transcriptomic biomarkers." Chemosphere 210 (November 2018): 304–11. http://dx.doi.org/10.1016/j.chemosphere.2018.07.030.

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Zammit, Carla M., Lesley A. Mutch, Helen R. Watling, and Elizabeth L. J. Watkin. "The recovery of nucleic acid from biomining and acid mine drainage microorganisms." Hydrometallurgy 108, no. 1-2 (June 2011): 87–92. http://dx.doi.org/10.1016/j.hydromet.2011.03.002.

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Narayanan, Mathiyazhagan, Devarajan Natarajan, Sabariswaran Kandasamy, Arunachalam Chinnathambi, Sulaiman Ali Alharbi, Indira Karuppusamy, and Brindhadevi Kathirvel. "Pyrite biomining proficiency of sulfur dioxygenase (SDO) enzyme extracted from Acidithiobacillus thiooxidans." Process Biochemistry 111 (December 2021): 207–12. http://dx.doi.org/10.1016/j.procbio.2021.09.012.

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Curtis, Susan B., Jeff Hewitt, Ross T. A. MacGillivray, and W. Scott Dunbar. "Biomining with bacteriophage: Selectivity of displayed peptides for naturally occurring sphalerite and chalcopyrite." Biotechnology and Bioengineering 102, no. 2 (February 1, 2009): 644–50. http://dx.doi.org/10.1002/bit.22073.

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Quatrini, Raquel, Eugenia Jedlicki, and David S. Holmes. "Genomic insights into the iron uptake mechanisms of the biomining microorganism Acidithiobacillus ferrooxidans." Journal of Industrial Microbiology & Biotechnology 32, no. 11-12 (May 14, 2005): 606–14. http://dx.doi.org/10.1007/s10295-005-0233-2.

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Banerjee, Indrani, Brittany Burrell, Cara Reed, Alan C. West, and Scott Banta. "Metals and minerals as a biotechnology feedstock: engineering biomining microbiology for bioenergy applications." Current Opinion in Biotechnology 45 (June 2017): 144–55. http://dx.doi.org/10.1016/j.copbio.2017.03.009.

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Woods, David, and Douglas Rawlings. "Molecular genetic studies on the thiobacilli and the development of improved biomining bacteria." BioEssays 2, no. 1 (January 1985): 8–10. http://dx.doi.org/10.1002/bies.950020104.

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Chen, Miaomiao, Likun Wang, Junliang Hou, Shushen Yang, Xin Zheng, Liang Chen, and Xiaofang Li. "Mycoextraction: Rapid Cadmium Removal by Macrofungi-Based Technology from Alkaline Soil." Minerals 8, no. 12 (December 12, 2018): 589. http://dx.doi.org/10.3390/min8120589.

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Fungi are promising materials for soil metal bioextraction and thus biomining. Here, a macrofungi-based system was designed for rapid cadmium (Cd) removal from alkaline soil. The system realized directed and rapid fruiting body development for subsequent biomass harvest. The Cd removal efficiency of the system was tested through a pot culture experiment. It was found that aging of the added Cd occurred rapidly in the alkaline soil upon application. During mushroom growth, the soil solution remained considerably alkaline, though a significant reduction in soil pH was observed in both Cd treatments. Cd and dissolved organic carbon (DOC) in soil solution generally increased over time and a significant correlation between them was detected in both Cd treatments, suggesting that the mushroom‒substratum system has an outstanding ability to mobilize Cd in an alkaline environment. Meanwhile, the growth of the mushrooms was not affected relative to the control. The estimated Cd removal efficiency of the system was up to 12.3% yearly thanks to the rapid growth of the mushroom and Cd enrichment in the removable substratum. Transcriptomic analysis showed that gene expression of the fruiting body presented considerable differences between the Cd treatments and control. Annotation of the differentially expressed genes (DEGs) indicated that cell wall sorption, intracellular binding, and vacuole storage may account for the cellular Cd accumulation. In conclusion, the macrofungi-based technology designed in this study has the potential to become a standalone biotechnology with practical value in soil heavy metal removal, and continuous optimization may make the system useful for biomining.

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Krok, Beate, Axel Schippers, and Wolfgang Sand. "Copper Recovery by Bioleaching of Chalcopyrite: A Microcalorimetric Approach for the Fast Determination of Bioleaching Activity." Advanced Materials Research 825 (October 2013): 322–25. http://dx.doi.org/10.4028/www.scientific.net/amr.825.322.

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Low grade copper ores containing chalcopyrite are increasingly used for copper recovery via biomining. Since metal sulfide oxidation is an exothememic process, bioleaching activity can be measured due to the heat output by microcalorimetry, which is a non-destructive and non-invasive method. The bioleaching activity of pure cultures ofSulfolobus metallicus,Metallosphaera hakonensisand a moderate thermophilic enrichment culture on high grade chalcopyrite was evaluated. Chalcopyrite leaching by microorganisms showed a higher copper recovery than sterile controls. Chemical chalcopyrite leaching by acid produced heat due to the exothermic reaction, the heat output was increased while metal sulfide oxidation by microorganisms.

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Journal articles on the topic 'Biomining'

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