Abstract
Effects of the common antibacterial agent triclosan on microbial communities and degradation of domestic xenobiotics were studied in simulated sewage-drain-field soil. Cultivable microbial populations decreased 22-fold in the presence of 4 mg kg{sup -1} of triclosan, and triclosan-resistant Pseudomonas strains were strongly enriched. Exposure to triclosan also changed the general metabolic profile (Ecoplate substrate profiling) and the general profile (T-RFLP) of the microbial community. Triclosan degradation was slow at all concentrations tested (0.33-81 mg kg{sup -1}) during 50-days of incubation. Mineralization experiments ({sup 14}C-tracers) and chemical analyses (LC-MS/MS) showed that the persistence of a linear alkylbenzene sulfonate (LAS) and a common analgesic (ibuprofen) increased with increasing triclosan concentrations (0.16-100 mg kg{sup -1}). The largest effect was seen for LAS mineralization which was severely reduced by 0.16 mg kg{sup -1} of triclosan. Our findings indicate that environmentally realistic concentrations of triclosan may affect the efficiency of biodegradation in percolation systems. - Highlights: > Triclosan may enter the soil environment through sewage. > Triclosan impacts the microbial community in sewage-drain-field soil. > Triclosan-resistant pseudomonads are strongly enriched. > Degradation of co-occurring LAS and ibuprofen is reduced. - Environmentally realistic triclosan concentrations in percolation systems may reduce the biodegradation of other xenobiotics and
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Svenningsen, Hanne;
[1]
Department of Biology, University of Copenhagen, Solvgade 83H, DK-1307 Copenhagen K (Denmark)];
Henriksen, Trine;
[1]
Prieme, Anders;
[2]
Johnsen, Anders R., E-mail: arj@geus.dk
[1]
- Department of Geochemistry, Geological Survey of Denmark and Greenland (GEUS), Oster Voldgade 10, DK-1350 Copenhagen K (Denmark)
- Department of Biology, University of Copenhagen, Solvgade 83H, DK-1307 Copenhagen K (Denmark)
Citation Formats
Svenningsen, Hanne, Department of Biology, University of Copenhagen, Solvgade 83H, DK-1307 Copenhagen K (Denmark)], Henriksen, Trine, Prieme, Anders, and Johnsen, Anders R., E-mail: arj@geus.dk.
Triclosan affects the microbial community in simulated sewage-drain-field soil and slows down xenobiotic degradation.
United Kingdom: N. p.,
2011.
Web.
doi:10.1016/j.envpol.2011.02.052.
Svenningsen, Hanne, Department of Biology, University of Copenhagen, Solvgade 83H, DK-1307 Copenhagen K (Denmark)], Henriksen, Trine, Prieme, Anders, & Johnsen, Anders R., E-mail: arj@geus.dk.
Triclosan affects the microbial community in simulated sewage-drain-field soil and slows down xenobiotic degradation.
United Kingdom.
https://doi.org/10.1016/j.envpol.2011.02.052
Svenningsen, Hanne, Department of Biology, University of Copenhagen, Solvgade 83H, DK-1307 Copenhagen K (Denmark)], Henriksen, Trine, Prieme, Anders, and Johnsen, Anders R., E-mail: arj@geus.dk.
2011.
"Triclosan affects the microbial community in simulated sewage-drain-field soil and slows down xenobiotic degradation."
United Kingdom.
https://doi.org/10.1016/j.envpol.2011.02.052.
@misc{etde_21546274,
title = {Triclosan affects the microbial community in simulated sewage-drain-field soil and slows down xenobiotic degradation}
author = {Svenningsen, Hanne, Department of Biology, University of Copenhagen, Solvgade 83H, DK-1307 Copenhagen K (Denmark)], Henriksen, Trine, Prieme, Anders, and Johnsen, Anders R., E-mail: arj@geus.dk}
abstractNote = {Effects of the common antibacterial agent triclosan on microbial communities and degradation of domestic xenobiotics were studied in simulated sewage-drain-field soil. Cultivable microbial populations decreased 22-fold in the presence of 4 mg kg{sup -1} of triclosan, and triclosan-resistant Pseudomonas strains were strongly enriched. Exposure to triclosan also changed the general metabolic profile (Ecoplate substrate profiling) and the general profile (T-RFLP) of the microbial community. Triclosan degradation was slow at all concentrations tested (0.33-81 mg kg{sup -1}) during 50-days of incubation. Mineralization experiments ({sup 14}C-tracers) and chemical analyses (LC-MS/MS) showed that the persistence of a linear alkylbenzene sulfonate (LAS) and a common analgesic (ibuprofen) increased with increasing triclosan concentrations (0.16-100 mg kg{sup -1}). The largest effect was seen for LAS mineralization which was severely reduced by 0.16 mg kg{sup -1} of triclosan. Our findings indicate that environmentally realistic concentrations of triclosan may affect the efficiency of biodegradation in percolation systems. - Highlights: > Triclosan may enter the soil environment through sewage. > Triclosan impacts the microbial community in sewage-drain-field soil. > Triclosan-resistant pseudomonads are strongly enriched. > Degradation of co-occurring LAS and ibuprofen is reduced. - Environmentally realistic triclosan concentrations in percolation systems may reduce the biodegradation of other xenobiotics and select for triclosan-resistant bacteria.}
doi = {10.1016/j.envpol.2011.02.052}
journal = []
issue = {6}
volume = {159}
place = {United Kingdom}
year = {2011}
month = {Jun}
}
title = {Triclosan affects the microbial community in simulated sewage-drain-field soil and slows down xenobiotic degradation}
author = {Svenningsen, Hanne, Department of Biology, University of Copenhagen, Solvgade 83H, DK-1307 Copenhagen K (Denmark)], Henriksen, Trine, Prieme, Anders, and Johnsen, Anders R., E-mail: arj@geus.dk}
abstractNote = {Effects of the common antibacterial agent triclosan on microbial communities and degradation of domestic xenobiotics were studied in simulated sewage-drain-field soil. Cultivable microbial populations decreased 22-fold in the presence of 4 mg kg{sup -1} of triclosan, and triclosan-resistant Pseudomonas strains were strongly enriched. Exposure to triclosan also changed the general metabolic profile (Ecoplate substrate profiling) and the general profile (T-RFLP) of the microbial community. Triclosan degradation was slow at all concentrations tested (0.33-81 mg kg{sup -1}) during 50-days of incubation. Mineralization experiments ({sup 14}C-tracers) and chemical analyses (LC-MS/MS) showed that the persistence of a linear alkylbenzene sulfonate (LAS) and a common analgesic (ibuprofen) increased with increasing triclosan concentrations (0.16-100 mg kg{sup -1}). The largest effect was seen for LAS mineralization which was severely reduced by 0.16 mg kg{sup -1} of triclosan. Our findings indicate that environmentally realistic concentrations of triclosan may affect the efficiency of biodegradation in percolation systems. - Highlights: > Triclosan may enter the soil environment through sewage. > Triclosan impacts the microbial community in sewage-drain-field soil. > Triclosan-resistant pseudomonads are strongly enriched. > Degradation of co-occurring LAS and ibuprofen is reduced. - Environmentally realistic triclosan concentrations in percolation systems may reduce the biodegradation of other xenobiotics and select for triclosan-resistant bacteria.}
doi = {10.1016/j.envpol.2011.02.052}
journal = []
issue = {6}
volume = {159}
place = {United Kingdom}
year = {2011}
month = {Jun}
}