Per-, poly-fluoroalkyl substances (PFASs) pollution in benthic riverine ecosystem: Integrating microbial community coalescence and biogeochemistry with sediment distribution
| Autor: | Jian-yi Wu, Xin-xin He, Zulin Hua, Zhong-yan Liang, Kejian Chu, Li Gu |
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| Rok vydání: | 2021 |
| Předmět: |
Geologic Sediments
Biogeochemical cycle Environmental Engineering Health Toxicology and Mutagenesis 0208 environmental biotechnology 02 engineering and technology 010501 environmental sciences 01 natural sciences Rivers Environmental Chemistry Ecosystem Nitrogen cycle Phylogeny 0105 earth and related environmental sciences Fluorocarbons Methanoregula biology Microbiota Public Health Environmental and Occupational Health Biogeochemistry Sediment General Medicine General Chemistry biology.organism_classification Archaea Pollution 020801 environmental engineering Microbial population biology Benthic zone Environmental chemistry Environmental science |
| Zdroj: | Chemosphere. 281:130977 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2021.130977 |
| Popis: | Per-, Poly-fluoroalkyl substances (PFASs) accumulation in benthic environments is mainly determined by material mixing and represents a significant challenge to river remediation. However, less attention has been paid to the effects of sediment distribution on PFASs accumulation, and how PFASs influence microbial community coalescence and biogeochemical processes. In order to identify correlations between PFASs distribution and benthic microbial community functions, we conducted a field study and quantified the ecological constrains of material transportation on benthic microorganisms. Perfluorohexanoic acid (PFHxA) contributed most to the taxonomic heterogeneity of both archaeal (12.199%) and bacterial (13.675%) communities. Genera Methanoregula (R2 = 0.292) and Bacillus (R2 = 0.791) were identified as indicators that respond to PFASs. Phylogenetic null modeling indicated that deterministic processes (50.0–82.2%) dominated in spatial assembly of archaea, while stochasticity (94.4–97.8%) dominated in bacteria. Furthermore, spatial mixing of PFASs influenced broadly in nitrogen cycling of archaeal genomes, and phosphorus mineralization of bacterial genomes (p |
| Databáze: | OpenAIRE |
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