Microbial community composition and cooccurrence patterns driven by co-contamination of arsenic and antimony in antimony-mining area

Wei-song PAN, Qi ZOU, Min HU, Wai Chin LI, Xiao-ran XIONG, Yan-ting QI, Chuan WU

Research output: Contribution to journalArticlespeer-review

5 Citations (Scopus)

Abstract

In the current study, a typical Sb mine was selected to explore the microbial community composition and assembly driven by the cocontamination of As/Sb with geographic distance. Our results showed that environmental parameters, especially pH, TOC, nitrate, total and bioavailable As/Sb contents largely affected the microbial community diversity and composition. The total and bioavailable As/Sb levels were significantly positively correlated with the relative abundance of Zavarzinella, Thermosporothrix and Holophaga, while the pH presented a significant negative correlation with the three genera, potentially implying they are important taxonomic groups in acid-mining soils. The cooccurrence network analysis indicated the environmental stress dominated by pH and As/Sb co-contamination affected the microbial modularity and interaction. Meanwhile, Homogeneous selection (HoS, 26.4–49.3%), and drift and others (DR, 27.1∼40.2%) were the most important assembly processes for soil bacterial, and the importance of HoS decreased and the DR increased with geographic distance to the contamination source respectively. Soil pH, nutrient availability, total and bioavailable As/Sb contents significantly affected the HoS and DR processes. This study provides theoretical support for microbial remediation in metal(loid)-contaminated soils. Copyright © 2023 Elsevier B.V. All rights reserved.

Original languageEnglish
Article number131535
JournalJournal of Hazardous Materials
Volume454
Early online dateApr 2023
DOIs
Publication statusPublished - Jul 2023

Citation

Pan, W.-S., Zou, Q., Hu, M., Li, W.-C., Xiong, X.-R., Qi, Y.-T., & Wu, C. (2023). Microbial community composition and cooccurrence patterns driven by co-contamination of arsenic and antimony in antimony-mining area. Journal of Hazardous Materials, 454. Retrieved from https://doi.org/10.1016/j.jhazmat.2023.131535

Keywords

  • Antimony
  • Arsenic
  • Microbial composition
  • Cooccurrence network
  • Community assembly

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