The interaction of acidophiles driving community functional responses to the re-inoculated chalcopyrite bioleaching process

Ma, Liyuan; Huang, Shanshan; Wu, Peiyi; Xiong, Junming; Wang, Hongmei; Liao, Hehuan; Liu, Xueduan

doi:10.1016/j.scitotenv.2021.149186

Cited by 15 publications

(3 citation statements)

References 53 publications

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“…Microorganisms dissolve metals by non-contact or contact mechanisms [ 7 , 8 ]. Acidophilic microorganisms use inorganic sulfur compounds to produce sulfate while converting Fe 2+ and Fe 3+ , playing important roles in global sulfur and iron cycling ( Table 1 ) [ 9 , 10 ]. Over the last decade, there has been a gradual increase in the discussion surrounding leaching biofilms [ 11 , 12 , 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Roles and Regulation of Quorum Sensing of Acidophiles in Bioleaching: A Review

Luo,

Li,

Chen

et al. 2024

Microorganisms

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Bioleaching has gained significant attention as a cost-effective and environmentally friendly approach for extracting metals from low-grade ores and industrial byproducts. The application of acidophiles in bioleaching has been extensively studied. Among the various mechanisms leaching microorganisms utilize, quorum sensing (QS) is pivotal in regulating their life activities in response to population density. QS has been confirmed to regulate bioleaching, including cell morphology, community structure, biofilm formation, and cell metabolism. Potential applications of QS have also been proposed, such as increasing mineral leaching rates by adding signaling molecules. This review is helpful for comprehensively understanding the role of QS in bioleaching and promoting the practical application of QS-based strategies in bioleaching process optimization.

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Section: Introductionmentioning

confidence: 99%

Roles and Regulation of Quorum Sensing of Acidophiles in Bioleaching: A Review

Luo,

Li,

Chen

et al. 2024

Microorganisms

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“…Acidophiles, a category of primary extremophiles with unique features, are widely distributed in acid mine/rock drainage (AMD/ARD) environments ( 1 ). In these natural ecosystems, acidophilic microorganisms take active parts in the elemental cycle of sulfur and iron globally by oxidizing reduced inorganic sulfur compounds (RISCs) to sulfate and transforming ferrous and ferric ions ( 2 , 3 ). It has been revealed that biofilm formation by attached bacterial cells is correlated with extracellular polymeric substance (EPS) production ( 4 ).…”

Section: Introductionmentioning

confidence: 99%

Insights into Adaptive Mechanisms of Extreme Acidophiles Based on Quorum Sensing/Quenching-Related Proteins

et al. 2022

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“…The type strain Acidiferrobacter thiooxydans m-1 was initially reported as “ Thiobacillus ferrooxidans ” owing to its iron-oxidizing capability, which was isolated from coal spoil refuse in Missouri, United States, over 35 years ago ( Harrison, 1982 ). The representative genus Acidithiobacillus (formerly Thiobacillus ) was the most widespread one with higher Fe/S oxidation ability, such as A. ferrooxidans , A. ferrivorans , A. caldus , and A. thiooxidans ( Ma et al, 2021 ). However, the strain Af.…”

Section: Introductionmentioning

confidence: 99%

Integrative Assessments on Molecular Taxonomy of Acidiferrobacter thiooxydans ZJ and Its Environmental Adaptation Based on Mobile Genetic Elements

Yang

Huang

et al. 2022

Front. Microbiol.

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Acidiferrobacter spp. are facultatively anaerobic acidophiles that belong to a distinctive Acidiferrobacteraceae family, which are similar to Ectothiorhodospiraceae phylogenetically, and are closely related to Acidithiobacillia class/subdivision physiologically. The limited genome information has kept them from being studied on molecular taxonomy and environmental adaptation in depth. Herein, Af. thiooxydans ZJ was isolated from acid mine drainage (AMD), and the complete genome sequence was reported to scan its genetic constitution for taxonomic and adaptative feature exploration. The genome has a single chromosome of 3,302,271 base pairs (bp), with a GC content of 63.61%. The phylogenetic tree based on OrthoANI highlighted the unique position of Af. thiooxydans ZJ, which harbored more unique genes among the strains from Ectothiorhodospiraceae and Acidithiobacillaceae by pan-genome analysis. The diverse mobile genetic elements (MGEs), such as insertion sequence (IS), clustered regularly interspaced short palindromic repeat (CRISPR), prophage, and genomic island (GI), have been identified and characterized in Af. thiooxydans ZJ. The results showed that Af. thiooxydans ZJ may effectively resist the infection of foreign viruses and gain functional gene fragments or clusters to shape its own genome advantageously. This study will offer more evidence of the genomic plasticity and improve our understanding of evolutionary adaptation mechanisms to extreme AMD environment, which could expand the potential utilization of Af. thiooxydans ZJ as an iron and sulfur oxidizer in industrial bioleaching.

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The interaction of acidophiles driving community functional responses to the re-inoculated chalcopyrite bioleaching process

Cited by 15 publications

References 53 publications

Roles and Regulation of Quorum Sensing of Acidophiles in Bioleaching: A Review

Roles and Regulation of Quorum Sensing of Acidophiles in Bioleaching: A Review

Insights into Adaptive Mechanisms of Extreme Acidophiles Based on Quorum Sensing/Quenching-Related Proteins

Integrative Assessments on Molecular Taxonomy of Acidiferrobacter thiooxydans ZJ and Its Environmental Adaptation Based on Mobile Genetic Elements

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