| Literature DB >> 27416516 |
Mauricio Latorre1, María Paz Cortés2, Dante Travisany2, Alex Di Genova2, Marko Budinich2, Angélica Reyes-Jara3, Christian Hödar4, Mauricio González4, Pilar Parada5, Roberto A Bobadilla-Fazzini5, Verónica Cambiazo4, Alejandro Maass6.
Abstract
This work presents the molecular foundation of a consortium of five efficient bacteria strains isolated from copper mines currently used in state of the art industrial-scale biotechnology. The strains Acidithiobacillus thiooxidans Licanantay, Acidiphilium multivorum Yenapatur, Leptospirillum ferriphilum Pañiwe, Acidithiobacillus ferrooxidans Wenelen and Sulfobacillus thermosulfidooxidans Cutipay were selected for genome sequencing based on metal tolerance, oxidation activity and bioleaching of copper efficiency. An integrated model of metabolic pathways representing the bioleaching capability of this consortium was generated. Results revealed that greater efficiency in copper recovery may be explained by the higher functional potential of L. ferriphilum Pañiwe and At. thiooxidans Licanantay to oxidize iron and reduced inorganic sulfur compounds. The consortium had a greater capacity to resist copper, arsenic and chloride ion compared to previously described biomining strains. Specialization and particular components in these bacteria provided the consortium a greater ability to bioleach copper sulfide ores.Entities:
Keywords: Bacterial consortium; Bioleaching; Metabolic pathways; Metal resistance
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Year: 2016 PMID： 27416516 DOI： 10.1016/j.biortech.2016.07.012
Source DB: PubMed Journal: Bioresour Technol ISSN： 0960-8524 Impact factor: 9.642