Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Microplastics increase impact of treated wastewater on freshwater microbial community |
| Abstract | Plastic pollution is a major global concern with several million microplastic particles entering every day freshwater ecosystems via wastewater discharge. Microplastic particles stimulate biofilm formation (plastisphere) throughout the water column and have the potential to affect microbial community structure if they accumulate in pelagic waters, especially enhancing the proliferation of biohazardous bacteria. To test this scenario, we simulated the inflow of treated wastewater into a temperate lake using a continuous culture system with a gradient of concentration of microplastic particles. We followed the effect of microplastics on the microbial community structure and on the occurrence of integrase 1 (int1), a marker associated with mobile genetic elements known as a proxy for anthropogenic effects on the spread of antimicrobial resistance genes. The abundance of int1 increased in the plastisphere with increasing microplastic particle concentration, but not in the water surrounding the microplastic particles. Likewise, the microbial community on microplastic was more similar to the original wastewater community with increasing microplastic concentrations. Our results show that microplastic particles indeed promote persistence of typical indicators of microbial anthropogenic pollution in natural waters, and substantiate that their removal from treated wastewater should be prioritised. Increasing microplastic concentrations allow the persistence of integrase 1 on the plastic pollutants. |
| Source | Environmental pollution (1987) 234, pp. 495–502 |
| Keywords | Anthropogenic pollutionBiofilmFreshwater microbial communitiesIntegrase 1MicroplasticsTreated wastewater |
| Journal | Environmental pollution (1987) |
| Editor | Elsevier Applied Science Publishers, Barking, Regno Unito |
| Year | 2018 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.envpol.2017.11.070 |
| Authors | Eckert, Ester M.; Di Cesare, Andrea; Kettner, Marie Therese; Arias-Andres, Maria; Fontaneto, Diego; Grossart, Hans Peter; Corno, Gianluca |
| Text | 381564 2018 10.1016/j.envpol.2017.11.070 Scopus 2 s2.0 85036554000 ISI Web of Science WOS WOS 000426225100052 Anthropogenic pollution Biofilm Freshwater microbial communities Integrase 1 Microplastics Treated wastewater Microplastics increase impact of treated wastewater on freshwater microbial community Eckert, Ester M.; Di Cesare, Andrea; Kettner, Marie Therese; Arias Andres, Maria; Fontaneto, Diego; Grossart, Hans Peter; Corno, Gianluca National Research Council Institute of Ecosystem Study CNR ISE ; Universita degli Studi di Genova; Leibniz Institut fur Gewasserokologie Und Binnenfischerei; Universitat Potsdam; National University Costa Rica Plastic pollution is a major global concern with several million microplastic particles entering every day freshwater ecosystems via wastewater discharge. Microplastic particles stimulate biofilm formation plastisphere throughout the water column and have the potential to affect microbial community structure if they accumulate in pelagic waters, especially enhancing the proliferation of biohazardous bacteria. To test this scenario, we simulated the inflow of treated wastewater into a temperate lake using a continuous culture system with a gradient of concentration of microplastic particles. We followed the effect of microplastics on the microbial community structure and on the occurrence of integrase 1 int1 , a marker associated with mobile genetic elements known as a proxy for anthropogenic effects on the spread of antimicrobial resistance genes. The abundance of int1 increased in the plastisphere with increasing microplastic particle concentration, but not in the water surrounding the microplastic particles. Likewise, the microbial community on microplastic was more similar to the original wastewater community with increasing microplastic concentrations. Our results show that microplastic particles indeed promote persistence of typical indicators of microbial anthropogenic pollution in natural waters, and substantiate that their removal from treated wastewater should be prioritised. Increasing microplastic concentrations allow the persistence of integrase 1 on the plastic pollutants. 234 Published version https //www.sciencedirect.com/science/article/pii/S0269749117339775 ep 2018_EnvPoll_Eckert et al.pdf Articolo in rivista Elsevier Applied Science Publishers 0269 7491 Environmental pollution 1987 Environmental pollution 1987 Environ. pollut. 1987 Environmental pollution 1987 estermaria.eckert ECKERT ESTER MARIA gianluca.corno CORNO GIANLUCA diego.fontaneto FONTANETO DIEGO andrea.dicesare DI CESARE ANDREA |