文献类型: 外文期刊
作者: Song, TT; Zhu, CX; Xue, S; Li, BX; Ye, J; Geng, B; Li, LF; Sarder, MF; Li, N; Feng, S; Li, HN
作者机构:
关键词: Ciprofloxacin; Collective Effects; Antibiotic Resistance Genes (Args); Bacterial Community Structure; Potential Host Bacteria
期刊名称: BIORESOURCE TECHNOLOGY
ISSN: 0960-8524
年卷期: 2020 年 315 卷
页码:
收录情况: JCR(2021版) ; EI(2021版)
摘要: This study explored commonly-used antibiotics (lincomycin, chlorotetracycline, sulfamethoxazole, and ciprofloxacin) and their collective effects on antibiotic resistance during composting. In the first 7 days, ciprofloxacin showed the greatest influence on the physicochemical factors among the studied antibiotics; the removal of antibiotic resistance genes (ARGs) in the multiple-antibiotic treatment was significantly less than single-antibiotic treatments; especially, the largest removal of ribosomal protection genes (tetW and tetO) occurred in single ciprofloxacin treatment. In the end of composting, similar removal ratio (29.71-99.79%) of ARGs was achieved in different treatments (p greater than 0.05); Chloroflexi became the main phylum and it was closely associated with ARGs removal based on the network analysis. Potential host bacteria of ARGs varied with different antibiotics; in particular, the presence of multiple antibiotics increased potential host bacteria of ermA, sul1 and tetO. Above all, collective effects of different antibiotics led to the enrichment of antibiotic resistance in the composting.
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