Uranium contamination mediating soil and ore microbial community assembly at four mining sites, South China

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: Feb. 19, 2025

Uranium mining presents significant environmental challenges, particularly through radiological contamination affecting soil and water bodies. While microbial communities are known to be influenced by geochemical factors like pH nutrient availability, their responses severe uranium in mine tailing environments remain poorly understood. This study investigated community distributions soils ores at four sites South China explore adaptations contamination. concentrations ranged from 170 18,000 mg/kg, with the most severely contaminated samples dominated Cyanobacteria, which comprised up 49.17% of community. Proteobacteria, such as Sphingomonas, were also abundant, indicating roles radiation resistance, while Acidobacteriota Actinobacteria showed negative uranium. Addition lime neutralize acidity tailings led an increase Gemmatimonadaceae, a family commonly found under oligotrophic conditions. Multivariate statistical analyses confirmed concentration primary factor influencing composition, along values, total nitrogen, contents Fe2O3 SiO2 soils. Co-occurrence network analysis suggested that extremely high disrupted interrelationships, reflecting lived more independently adopted strategies cope intense selective pressure. Intriguingly, dispersal limitation governed 90% assembly high-uranium (>10,000 mg/kg), suggesting isolated ecological niches. Deterministic processes heterogeneous homogeneous selection only relatively moderate low levels. These findings provide insights into dynamics uranium-contaminated related bioremediation strategies.

Language: Английский

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Sulfate-reducing bacteria in removal of pollutants: a promising candidate for bioremediation

World Journal of Microbiology and Biotechnology, Journal Year: 2025, Volume and Issue: 41(4)

Published: April 1, 2025

Language: Английский

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Global distribution and sources of uranium and fluoride in groundwater: A comprehensive review

Journal of Geochemical Exploration, Journal Year: 2024, Volume and Issue: unknown, P. 107665 - 107665

Published: Dec. 1, 2024

Language: Английский

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Extracellular electron transfer-dependent bioremediation of uranium-contaminated groundwater: Advancements and challenges

Water Research, Journal Year: 2024, Volume and Issue: 272, P. 122957 - 122957

Published: Dec. 13, 2024

Language: Английский

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