The effect of carbon-based copper nanocomposites on Microcystis aeruginosa and the movability of antibiotic resistance genes in urban water
文献类型： 外文期刊
作者： Ji, Xiyan 1 ; Tang, Yunchao 1 ; Ye, Jing 3 ; Wu, Shichao 1 ; Hou, Meifang 1 ; Huang, Saihua 2 ; Wang, Rui 4 ;
作者机构： 1.Shanghai Inst Technol, Sch Ecol Technol & Engn, Shanghai 201418, Peoples R China
2.Guangdong Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Agr Environm Pollut Integrated, Guangzhou 510650, Peoples R China
3.Shanghai Inst Technol, Sch Chem & Environm Engn, Shanghai 201418, Peoples R China
4.Shanghai Luming Biol Technol Co Ltd, Shanghai 201114, Peoples R China
关键词： Carbon-based copper nanocomposites; Microcystis aeruginosa; Antibiotic resistance genes; Metagenomics sequencing
期刊名称：CHEMOSPHERE （ 影响因子：8.943； 五年影响因子：8.52 ）
ISSN： 0045-6535
年卷期： 2022 年 286 卷
页码：
收录情况： SCI
摘要： The presence of Microcystis aeruginosa (M. aeruginosa) can affect the transference of antibiotic resistance genes (ARGs), and the presence of carbon-based copper nanocomposites (CCN) can affect the growth of M. aeruginosa. However, the effect of CCN on M. aeruginosa and ARGs is not fully understood. In this study, metagenomic sequencing was employed to analyze the movability of ARGs, their potential transfer, and possible hosts in photobioreactor treating urban water. The results uggested that 20 mg/L of CCN changed the composition and abundance of microorganisms in urban water, significantly promoted the flocculation of M aeruginosa, and decreased the composing proportion of Cyanophyta sp. and M aeruginosa. The results indicated that 20 mg/L of CCN significantly decreased the absolute abundance and ARGs proportions which mediated by plasmids (32.7 %). Furthermore, the lower co-occurrence probability of ARGs and mobile genetic elements (MGEs) suggested that 20 mg/L of CCN weakened the movability potential of ARGs mediated by MGEs such as plasmids. Among the 452 metagenome-assembled genomes (MAGs), 95 MAGs belonging to 41 bacterial categories were identified as possible ARG hosts. These results will provide insights into the control of harmful cyanobacteria and the management of ARGs in urban water.
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