Prokaryotic, Microeukaryotic, and Fungal Composition in a Long-Term Polychlorinated Biphenyl-Contaminated Brownfield - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Microbial ecology Année : 2023

Prokaryotic, Microeukaryotic, and Fungal Composition in a Long-Term Polychlorinated Biphenyl-Contaminated Brownfield

Sonia Czarnes
Laurent Vallon
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Gaël Plassart
  • Fonction : Auteur

Résumé

Polychlorinated biphenyls (PCBs) are recognized as persistent organic pollutants and accumulate in organisms, soils, waters, and sediments, causing major health and ecological perturbations. Literature reported PCB bio-transformation by fungi and bacteria in vitro, but data about the in situ impact of those compounds on microbial communities remained scarce while being useful to guide biotransformation assays. The present work investigated for the first time microbial diversity from the three-domains-of-life in a long-term contaminated brownfield (a former factory land). Soil samples were ranked according to their PCB concentrations, and a significant increase in abundance was shown according to increased concentrations. Microbial communities structure showed a segregation from the least to the most PCB-polluted samples. Among the identified microorganisms, Bacteria belonging to Gammaproteobacteria class, as well as Fungi affiliated to Saccharomycetes class or Pleurotaceae family, including some species known to transform some PCBs were abundantly retrieved in the highly polluted soil samples.
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Dates et versions

hal-04276436 , version 1 (10-11-2023)

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Flavien Maucourt, Aurélie Cébron, Hélène Budzinski, Karyn Le Menach, Laurent Peluhet, et al.. Prokaryotic, Microeukaryotic, and Fungal Composition in a Long-Term Polychlorinated Biphenyl-Contaminated Brownfield. Microbial ecology, 2023, 86 (3), pp.1696 - 1708. ⟨10.1007/s00248-022-02161-y⟩. ⟨hal-04276436⟩
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