Comparison of bacterial communities and antibiotic resistance genes in oxidation ditches and membrane bioreactors

Abstract Oxidation ditches (ODs) and membrane bioreactors (MBRs) are widely used in wastewater treatment plants (WWTPs) with bacteria and antibiotic resistance genes (ARGs) running through the whole system. In this study, metagenomic sequencing was used to compare the bacterial communities and ARGs...

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Autores principales:	Lifang Luo, Junqin Yao, Weiguo Liu, Lixin Yang, Hailong Li, Ming Liang, Hui Ma, Ziteng Liu, Yinguang Chen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/bbb602d7affe4f7aba240867e6830a8c
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spelling	oai:doaj.org-article:bbb602d7affe4f7aba240867e6830a8c2021-12-02T17:39:19ZComparison of bacterial communities and antibiotic resistance genes in oxidation ditches and membrane bioreactors10.1038/s41598-021-88335-z2045-2322https://doaj.org/article/bbb602d7affe4f7aba240867e6830a8c2021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88335-zhttps://doaj.org/toc/2045-2322Abstract Oxidation ditches (ODs) and membrane bioreactors (MBRs) are widely used in wastewater treatment plants (WWTPs) with bacteria and antibiotic resistance genes (ARGs) running through the whole system. In this study, metagenomic sequencing was used to compare the bacterial communities and ARGs in the OD and MBR systems, which received the same influent in a WWTP located in Xinjiang, China. The results showed that the removal efficiency of pollutants by the MBR process was better than that by the OD process. The composition and the relative abundance of bacteria in activated sludge were similar at the phylum and genus levels and were not affected by process type. Multidrug, fluoroquinolones and peptides were the main ARG types for the two processes, with macB being the main ARG subtype, and the relative abundance of ARG subtypes in MBR effluent was much higher than that in the OD effluent. The mobile genetic elements (MGEs) in the activated sludge were mainly transposons (tnpA) and insertion sequences (ISs; IS91). These results provide a theoretical basis for process selection and controlling the spread of ARGs.Lifang LuoJunqin YaoWeiguo LiuLixin YangHailong LiMing LiangHui MaZiteng LiuYinguang ChenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lifang Luo Junqin Yao Weiguo Liu Lixin Yang Hailong Li Ming Liang Hui Ma Ziteng Liu Yinguang Chen Comparison of bacterial communities and antibiotic resistance genes in oxidation ditches and membrane bioreactors
description	Abstract Oxidation ditches (ODs) and membrane bioreactors (MBRs) are widely used in wastewater treatment plants (WWTPs) with bacteria and antibiotic resistance genes (ARGs) running through the whole system. In this study, metagenomic sequencing was used to compare the bacterial communities and ARGs in the OD and MBR systems, which received the same influent in a WWTP located in Xinjiang, China. The results showed that the removal efficiency of pollutants by the MBR process was better than that by the OD process. The composition and the relative abundance of bacteria in activated sludge were similar at the phylum and genus levels and were not affected by process type. Multidrug, fluoroquinolones and peptides were the main ARG types for the two processes, with macB being the main ARG subtype, and the relative abundance of ARG subtypes in MBR effluent was much higher than that in the OD effluent. The mobile genetic elements (MGEs) in the activated sludge were mainly transposons (tnpA) and insertion sequences (ISs; IS91). These results provide a theoretical basis for process selection and controlling the spread of ARGs.
format	article
author	Lifang Luo Junqin Yao Weiguo Liu Lixin Yang Hailong Li Ming Liang Hui Ma Ziteng Liu Yinguang Chen
author_facet	Lifang Luo Junqin Yao Weiguo Liu Lixin Yang Hailong Li Ming Liang Hui Ma Ziteng Liu Yinguang Chen
author_sort	Lifang Luo
title	Comparison of bacterial communities and antibiotic resistance genes in oxidation ditches and membrane bioreactors
title_short	Comparison of bacterial communities and antibiotic resistance genes in oxidation ditches and membrane bioreactors
title_full	Comparison of bacterial communities and antibiotic resistance genes in oxidation ditches and membrane bioreactors
title_fullStr	Comparison of bacterial communities and antibiotic resistance genes in oxidation ditches and membrane bioreactors
title_full_unstemmed	Comparison of bacterial communities and antibiotic resistance genes in oxidation ditches and membrane bioreactors
title_sort	comparison of bacterial communities and antibiotic resistance genes in oxidation ditches and membrane bioreactors
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/bbb602d7affe4f7aba240867e6830a8c
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Comparison of bacterial communities and antibiotic resistance genes in oxidation ditches and membrane bioreactors

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