耐多药粪肠球菌菌株通过经处理的污水进入挪威海洋环境。

IF 3.9 3区 生物学 Q2 MICROBIOLOGY MicrobiologyOpen Pub Date : 2024-03-05 DOI:10.1002/mbo3.1397
Vera Radisic, Didrik H. Grevskott, Nadja Junghardt, Lise Øvreås, Nachiket P. Marathe
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摘要

本研究旨在了解挪威卑尔根市未经处理的污水中肠球菌的抗生素耐药性流行情况。在三次采样中,从五个污水处理厂(STPs)的原污水和处理过的污水中共分离出 517 株肠球菌,其中粪肠球菌(Enterococcus faecium)是最常见的菌种(n = 492)。从进水样本中获得的粪肠球菌菌株(n = 307)对奎奴普汀/达尔福普汀的耐药性最高(67.8%)。我们观察到这些菌株对红霉素(30.6%)和四环素(6.2%)的敏感性降低。从污水样本中获得的粪肠球菌菌株(n = 185)对喹诺酮/达福布星的耐药性最高(68.1%),对红霉素(24.9%)和四环素(8.6%)的敏感性降低。我们没有在任何菌株中发现对利奈唑胺、万古霉素和替加环素等最后抗生素的耐药性。在进水样本(2.3%)和出水样本(2.2%)中都检测到了耐多药(MDR)的粪肠球菌菌株。肠球菌属菌株(n = 25)的全基因组测序显示,其中存在多个抗生素耐药基因,可耐受氨基糖苷类、四环素类和大环内酯类药物,以及多个毒力基因和质粒复制子。从污水中测序出的两株 MDR 菌株属于医院相关克隆复合体 17,并携带多种毒力基因。我们的研究表明,与临床相关的 MDR 肠球菌属菌株正通过经处理的污水进入海洋环境。
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Multidrug-resistant Enterococcus faecium strains enter the Norwegian marine environment through treated sewage

This study aimed to understand the antibiotic resistance prevalence among Enterococcus spp. from raw and treated sewage in Bergen city, Norway. In total, 517 Enterococcus spp. isolates were obtained from raw and treated sewage from five sewage treatment plants (STPs) over three sampling occasions, with Enterococcus faecium as the most prevalent (n = 492) species. E. faecium strains (n = 307) obtained from the influent samples, showed the highest resistance against quinupristin/dalfopristin (67.8%). We observed reduced susceptibility to erythromycin (30.6%) and tetracycline (6.2%) in these strains. E. faecium strains (n = 185) obtained from the effluent samples showed highest resistance against quinupristin/dalfopristin (68.1%) and reduced susceptibility to erythromycin (24.9%) and tetracycline (8.6%). We did not detect resistance against last-resort antibiotics, such as linezolid, vancomycin, and tigecycline in any of the strains. Multidrug-resistant (MDR) E. faecium strains were detected in both influent (2.3%) and effluent (2.2%) samples. Whole genome sequencing of the Enterococcus spp. strains (n = 25) showed the presence of several antibiotic resistance genes, conferring resistance against aminoglycosides, tetracyclines, and macrolides, as well as several virulence genes and plasmid replicons. Two sequenced MDR strains from the effluents belonged to the hospital-associated clonal complex 17 and carried multiple virulence genes. Our study demonstrates that clinically relevant MDR Enterococcus spp. strains are entering the marine environment through treated sewage.

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来源期刊
MicrobiologyOpen
MicrobiologyOpen MICROBIOLOGY-
CiteScore
8.00
自引率
0.00%
发文量
78
审稿时长
20 weeks
期刊介绍: MicrobiologyOpen is a peer reviewed, fully open access, broad-scope, and interdisciplinary journal delivering rapid decisions and fast publication of microbial science, a field which is undergoing a profound and exciting evolution in this post-genomic era. The journal aims to serve the research community by providing a vehicle for authors wishing to publish quality research in both fundamental and applied microbiology. Our goal is to publish articles that stimulate discussion and debate, as well as add to our knowledge base and further the understanding of microbial interactions and microbial processes. MicrobiologyOpen gives prompt and equal consideration to articles reporting theoretical, experimental, applied, and descriptive work in all aspects of bacteriology, virology, mycology and protistology, including, but not limited to: - agriculture - antimicrobial resistance - astrobiology - biochemistry - biotechnology - cell and molecular biology - clinical microbiology - computational, systems, and synthetic microbiology - environmental science - evolutionary biology, ecology, and systematics - food science and technology - genetics and genomics - geobiology and earth science - host-microbe interactions - infectious diseases - natural products discovery - pharmaceutical and medicinal chemistry - physiology - plant pathology - veterinary microbiology We will consider submissions across unicellular and cell-cluster organisms: prokaryotes (bacteria, archaea) and eukaryotes (fungi, protists, microalgae, lichens), as well as viruses and prions infecting or interacting with microorganisms, plants and animals, including genetic, biochemical, biophysical, bioinformatic and structural analyses. The journal features Original Articles (including full Research articles, Method articles, and Short Communications), Commentaries, Reviews, and Editorials. Original papers must report well-conducted research with conclusions supported by the data presented in the article. We also support confirmatory research and aim to work with authors to meet reviewer expectations. MicrobiologyOpen publishes articles submitted directly to the journal and those referred from other Wiley journals.
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