Metagenomic Influential Insights in the Formation of Biogenic Iron Hydroxysulfate Precipitates by Ferrous Oxidative Microbial Consortia

Cotrina, Daladier Castillo; Medina, Jesus P.; Gamarra, Francisco; Delgado, Sandra; Chipana, Virginia; Clavijo, Claudia F.; Ccorahua-Santo, Robert; Peceros-Melchor, Mesalina

doi:10.1080/01490451.2022.2137602

Cited by 1 publication

(2 citation statements)

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“…Mining environmental liabilities in Peru are considerable and continue to cause damage to soil, water, and landscapes due to inefficient traditional methods and lack of regulatory oversight, as they are often neglected over time [16]. Daladier et al (2022) [4] analyzed samples extracted from the Toquepala copper mine located in Tacna, Peru, aiming to compare the diversity of microbial consortia. For consortia M1-M18, a higher microbial diversity and notable prevalence of species such as Ferrimicronium and Acidimicroniacea were observed.…”

Section: Introductionmentioning

confidence: 99%

“…The climate is mostly warm throughout the year, except for the months of January to March when rainfall makes it temperate. 4 Yarabamba hosts inactive copper mines with waste dumps scattered in virgin areas for molecular characterization studies, microbial diversity, and their biolyxative capacity. These contaminated sites represent ecological niches where pollution over the years has resulted in unusual microbial biodiversity, exerting environmental pressure on fundamental ecological parameters such as abundance, diversity, nutrient recycling, and food webs.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of a Native Microbial Consortium from Mining Tailings of the Arequipa Region and its potential application in Biolixiviation

Arequipa-Loayza,

Valdes,

Lazarte-Rivera

2024

Preprint

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This study addresses the issue of mining environmental liabilities in the southeastern region of Arequipa, Peru, specifically in Yarabamba, pristine areas for molecular characterization studies through metagenomics, where the microbial consortia present in mining tailings were determined, exploring their diversity and biolyxative capacity. In the studied region, treatments with native and adapted microbial consortia were implemented, using seawater in the latter. Over 14 days, analyses of cell count, pH, and oxidation-reduction potential (ORP) were performed, showing an increase in microbial biomass and changes in the medium conditions, indicating a positive impact of the microorganisms on the sustainable recovery of copper. Atomic absorption analysis of the copper content revealed a significant increase at the end of the treatments, reaching 4.42% for the native microbial consortium (NMC) and 4.61% for the adapted microbial consortium (AMC), compared to the initial sample's 2.19%. The final results revealed significant species diversity, with Cutibacterium namnetense, Staphylococcus caprae, and Pelomonas aquatica predominating. This would indicate a positive impact of microbial consortia on sustainable copper recovery, and the microbial diversity suggests that the presence of the identified species could correspond to a signal of natural recovery of the environment, through a possible ecological succession over time. This would be an adaptation to address associated environmental challenges, and it would also highlight the importance of long-term strategies in the bioremediation of affected mining areas.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%