» Articles » PMID: 35954758

The Dual Roles of Nano Zero-Valent Iron and Zinc Oxide in Antibiotics Resistance Genes (ARGs) Spread in Sediment

Overview
Publisher MDPI
Date 2022 Aug 12
PMID 35954758
Authors
Affiliations
Soon will be listed here.
Abstract

Nanoparticles (NPs) are widely used and ubiquitous in the environment, but the consequences of their release into the environment on antibiotics resistance genes (ARGs), microbial abundance, and community, are largely unknown. Therefore, this study examined the effect of nano zero-valent iron (nZVI) and zinc oxide (nZnO) on tetracycline resistance genes (tet-ARGs) and class 1 integron () in sediment under laboratory incubation. The coexistence of NPs and tetracycline (TC) on tet-ARGs/ was also investigated. It was found that nZVI and nZnO promoted tet-ARGs/ abundance in sediment without TC but reduced the inducing effect of TC on tet-ARGs/ in sediment overlaid with TC solution. Without TC, nZVI, , and the bacterial community could directly promote tet-ARGs spread in nZVI sediment, while and bacterial abundance were the most directly important reasons for tet-ARGs spread in nZnO sediment. With TC, nZVI and bacterial community could reduce tet-ARGs abundance in nZVI sediment, while nZnO and bacterial community could directly promote tet-ARGs in nZnO sediment. Finally, these findings provided valuable information for understanding the role of NPs in promoting and reducing ARGs in the environment.

References
1.
Fajardo C, Ortiz L, Rodriguez-Membibre M, Nande M, Lobo M, Martin M . Assessing the impact of zero-valent iron (ZVI) nanotechnology on soil microbial structure and functionality: a molecular approach. Chemosphere. 2011; 86(8):802-8. DOI: 10.1016/j.chemosphere.2011.11.041. View

2.
Zhang S, Lu J, Wang Y, Verstraete W, Yuan Z, Guo J . Insights of metallic nanoparticles and ions in accelerating the bacterial uptake of antibiotic resistance genes. J Hazard Mater. 2021; 421:126728. DOI: 10.1016/j.jhazmat.2021.126728. View

3.
Song L, Wang C, Jiang G, Ma J, Li Y, Chen H . Bioaerosol is an important transmission route of antibiotic resistance genes in pig farms. Environ Int. 2021; 154:106559. DOI: 10.1016/j.envint.2021.106559. View

4.
Osei Sekyere J . Current State of Resistance to Antibiotics of Last-Resort in South Africa: A Review from a Public Health Perspective. Front Public Health. 2016; 4:209. PMC: 5042966. DOI: 10.3389/fpubh.2016.00209. View

5.
Aydin S, Aydin M, Beduk F, Ulvi A . Removal of antibiotics from aqueous solution by using magnetic FeO/red mud-nanoparticles. Sci Total Environ. 2019; 670:539-546. DOI: 10.1016/j.scitotenv.2019.03.205. View