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Metagenomic study focusing on antibiotic resistance genes from the sediments of River Yamuna.
Gene ( IF 3.5 ) Pub Date : 2020-07-16 , DOI: 10.1016/j.gene.2020.144951
Basanta Kumar Das 1 , Bijay Kumar Behera 1 , Hirak Jyoti Chakraborty 1 , Prasenjit Paria 1 , Aditi Gangopadhyay 2 , Ajaya Kumar Rout 1 , Kausalya Kumari Nayak 3 , Pranaya Kumar Parida 1 , Anil Rai 4
Affiliation  

Antibiotic resistance is one of the major health concerns of the present century. The direct discharge of urban sewage, hospital effluents, and pharmaceutical wastes increases the concentration of antibiotics in riverine ecosystems. This provides selection pressure for the development of novel antibiotic-resistant strains. In this study, metagenomics approach was employed a for constructing a comprehensive profile of the Antibiotic Resistance Genes (ARGs) identified in the sediments of the Yamuna River. A total of 139 ARGs were identified from 39 microbial species. Abundance analysis revealed that, aminoglycoside, beta-lactam, macrolide, and tetracycline resistance genes were highly abundant in the sediment samples obtained from the Yamuna River. The evolutionary relationships among the ARGs were studied by phylogenetic analyses, which revealed that, the identified resistome comprised eight clusters. Network analysis was performed for investigating the broad-spectrum profiles of the ARGs and their enrichment in different biological functions and pathways. Protein-protein interaction (PPI) analyses revealed that, 76, 36, 18, and 5 Gene Ontology (GO)-terms were significantly enriched in Biological process, Molecular Function, Cellular Component, and KEGG Pathways analysis, respectively. The present study elucidates the ecology of microbial antibiotic resistance in the riverine ecosystem of the Yamuna River and provides novel insights into the environmental hotspots that are amenable to the emergence of ARGs in the contaminated riverine hydrosphere.



中文翻译:

关于亚穆纳河沉积物中抗生素抗性基因的元基因组研究。

抗生素抗性是本世纪主要的健康问题之一。城市污水,医院废水和制药废物的直接排放增加了河流生态系统中抗生素的浓度。这为新型抗生素抗性菌株的开发提供了选择压力。在这项研究中,采用了宏基因组学方法来构建Yamuna河沉积物中鉴定出的抗生素抗性基因(ARG)的综合概况。从39个微生物物种中总共鉴定出139个ARG。丰度分析表明,从亚穆纳河获得的沉积物样品中氨基糖苷,β-内酰胺,大环内酯和四环素抗性基因高度丰富。通过系统发育分析研究了ARGs之间的进化关系,结果表明,鉴定出的电阻组包括八个簇。进行了网络分析,以调查ARG的广谱图及其在不同生物学功能和途径中的富集。蛋白质-蛋白质相互作用(PPI)分析显示,在生物学过程,分子功能,细胞成分和KEGG途径分析中,分别有76、36、18和5个基因本体(GO)术语显着丰富。本研究阐明了亚穆纳河河流生态系统中微生物对抗生素的耐药性,并对受污染的河流水圈中的ARGs出现的环境热点提供了新的见解。进行了网络分析,以调查ARG的广谱图及其在不同生物学功能和途径中的富集。蛋白质-蛋白质相互作用(PPI)分析显示,在生物学过程,分子功能,细胞成分和KEGG途径分析中,分别有76、36、18和5个基因本体(GO)术语显着丰富。本研究阐明了亚穆纳河河流生态系统中微生物对抗生素的耐药性,并对受污染的河流水圈中的ARGs出现的环境热点提供了新的见解。进行了网络分析,以调查ARG的广谱图及其在不同生物学功能和途径中的富集。蛋白质-蛋白质相互作用(PPI)分析显示,在生物学过程,分子功能,细胞成分和KEGG途径分析中,分别有76、36、18和5个基因本体(GO)术语显着丰富。本研究阐明了亚穆纳河河流生态系统中微生物对抗生素的耐药性,并对受污染的河流水圈中的ARGs出现的环境热点提供了新的见解。和5个基因本体论(GO)术语分别在生物学过程,分子功能,细胞成分和KEGG途径分析中得到了显着丰富。本研究阐明了亚穆纳河河流生态系统中微生物对抗生素的耐药性,并对受污染的河流水圈中的ARGs出现的环境热点提供了新的见解。和5个基因本体论(GO)术语分别在生物学过程,分子功能,细胞成分和KEGG途径分析中得到了显着丰富。本研究阐明了亚穆纳河河流生态系统中微生物对抗生素的耐药性,并对受污染的河流水圈中的ARGs出现的环境热点提供了新的见解。

更新日期:2020-07-21
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