Responses of soil bacteria and fungal communities to pristine and sulfidized zinc oxide nanoparticles relative to Zn ions.

Autor: Chen C; State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, Northwest A&F University, Yangling 712100, Shaanxi, PR China. Electronic address: chunchen@nwsuaf.edu.cn., Unrine JM; Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY 40546, USA., Hu Y; State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, Northwest A&F University, Yangling 712100, Shaanxi, PR China., Guo L; State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, Northwest A&F University, Yangling 712100, Shaanxi, PR China., Tsyusko OV; Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY 40546, USA., Fan Z; State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, Northwest A&F University, Yangling 712100, Shaanxi, PR China., Liu S; State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, Northwest A&F University, Yangling 712100, Shaanxi, PR China., Wei G; State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, Northwest A&F University, Yangling 712100, Shaanxi, PR China. Electronic address: weigehong@nwsuaf.edu.cn.
Jazyk: angličtina
Zdroj: Journal of hazardous materials [J Hazard Mater] 2021 Mar 05; Vol. 405, pp. 124258. Date of Electronic Publication: 2020 Oct 25.
DOI: 10.1016/j.jhazmat.2020.124258
Abstrakt: Zinc oxide nanoparticles (ZnO NPs) are attracting much interest due to their potential toxicity and ubiquity in consumer products. However, understanding of pristine and transformed ZnO NPs impact on soil microbial communities is still limited. Here, we explored changes in the microbial communities of soils treated with pristine and sulfidized ZnO NPs (s-ZnO NPs), and their corresponding Zn ions (ZnSO 4 ) for 30 and 90 days exposures at 100 and 500 mg Zn kg -1 . The similarity in bacterial community responses was observed between ZnO NPs and s-ZnO NPs, and these Zn treatments significantly affected the bacterial communities at 90 days, which exhibited distinct patterns compared to ZnSO 4 . The single-time tested DTPA and H 2 O extractable Zn ions could not fully explain the observed ZnO NPs and s-ZnO NPs impact on bacterial communities. The two most dominant phylum Nitrospirae and Actinobacteria, associated with the reduction of NH 4 + -N and dissolved organic carbon, demonstrated significant changes in soils exposed to ZnO NPs and s-ZnO NPs. This suggests the potential long-term impact of transformed ZnO NPs on soil carbon and nitrogen cycling. For fungal communities, we did not find the distinct response patterns of fungal communities between nanoparticulate and ionic Zn exposures.
(Copyright © 2020 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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