Emergence of plasmid-mediated tigecycline resistance gene, tet(X4), in Escherichia fergusonii from pigs

ABSTRACT: Objectives: This study aimed to identify tigecycline-resistant tet(X4)-bearing Escherichia fergusonii isolated from pigs in China with a complete genome sequence. Methods: E. fergusonii was isolated by selective medium and screened from tigecycline-supplemented agar plates. The microbroth...

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Main Authors: Chunjiu Guan, Biao Tang, Hua Yang, Jiangang Ma, Yuting Huang, Canying Liu
Format: Article
Language:English
Published: Elsevier 2022-09-01
Series:Journal of Global Antimicrobial Resistance
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2213716522001655
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author Chunjiu Guan
Biao Tang
Hua Yang
Jiangang Ma
Yuting Huang
Canying Liu
author_facet Chunjiu Guan
Biao Tang
Hua Yang
Jiangang Ma
Yuting Huang
Canying Liu
author_sort Chunjiu Guan
collection DOAJ
description ABSTRACT: Objectives: This study aimed to identify tigecycline-resistant tet(X4)-bearing Escherichia fergusonii isolated from pigs in China with a complete genome sequence. Methods: E. fergusonii was isolated by selective medium and screened from tigecycline-supplemented agar plates. The microbroth dilution method was used for antimicrobial susceptibility testing, and the minimal inhibitory concentration (MIC) results refer to the interpretation standard in the Clinical and Laboratory Standards Institute of America (CLSI). Whole-genome sequencing was performed on the Illumina HiSeq and Nanopore GridION platforms. The antimicrobial resistance (AMR) genes virulence genes and replicon types of plasmids were predicted by the CGE server. Results: E. fergusonii EF21QZZ116 was identified from 760 faecal and caecal content samples and was resistant to tigecycline, tetracycline, ampicillin, sulfisoxazole, trimethoprim-sulfamethoxazole, spectinomycin, and florfenicol. The AMR genes tet(X4), blaTEM-1B, and floR are located on the hybrid IncFIA-IncHI1A-IncHI1B plasmid pQZZ166-tetX-190K and are 190 391 bp in length. This hybrid plasmid has high homology with the plasmids of Escherichia coli, Enterobacter cloacae, Klebsiella, Citrobacter, and Salmonella based on comparison and analysis with the NCBI database. Notably, conjugative transfer and S1 nuclease pulsed-field gel electrophoresis (S1-PFGE) assays show that the plasmid can transfer horizontally. Conclusion: To the best of our knowledge, this is the first report of E. fergusonii carrying the tet(X4) gene isolated from a pig; this report provides insight into the AMR characteristics of E. fergusonii and offers insight into public health.
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spelling doaj.art-98273f5c9fb340f9843ef2b0c39cf3ed2022-12-22T03:47:08ZengElsevierJournal of Global Antimicrobial Resistance2213-71652022-09-0130249251Emergence of plasmid-mediated tigecycline resistance gene, tet(X4), in Escherichia fergusonii from pigsChunjiu Guan0Biao Tang1Hua Yang2Jiangang Ma3Yuting Huang4Canying Liu5Department of Life Science and Engineering, Foshan University, Foshan, China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products and Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, ChinaState Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products and Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China; Corresponding author. Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang, China.State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products and Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, ChinaState Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products and Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, ChinaDepartment of Life Science and Engineering, Foshan University, Foshan, China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products and Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, ChinaDepartment of Life Science and Engineering, Foshan University, Foshan, China; Alternative corresponding author. Foshan University, Foshan 5280001, Guangdong, China.ABSTRACT: Objectives: This study aimed to identify tigecycline-resistant tet(X4)-bearing Escherichia fergusonii isolated from pigs in China with a complete genome sequence. Methods: E. fergusonii was isolated by selective medium and screened from tigecycline-supplemented agar plates. The microbroth dilution method was used for antimicrobial susceptibility testing, and the minimal inhibitory concentration (MIC) results refer to the interpretation standard in the Clinical and Laboratory Standards Institute of America (CLSI). Whole-genome sequencing was performed on the Illumina HiSeq and Nanopore GridION platforms. The antimicrobial resistance (AMR) genes virulence genes and replicon types of plasmids were predicted by the CGE server. Results: E. fergusonii EF21QZZ116 was identified from 760 faecal and caecal content samples and was resistant to tigecycline, tetracycline, ampicillin, sulfisoxazole, trimethoprim-sulfamethoxazole, spectinomycin, and florfenicol. The AMR genes tet(X4), blaTEM-1B, and floR are located on the hybrid IncFIA-IncHI1A-IncHI1B plasmid pQZZ166-tetX-190K and are 190 391 bp in length. This hybrid plasmid has high homology with the plasmids of Escherichia coli, Enterobacter cloacae, Klebsiella, Citrobacter, and Salmonella based on comparison and analysis with the NCBI database. Notably, conjugative transfer and S1 nuclease pulsed-field gel electrophoresis (S1-PFGE) assays show that the plasmid can transfer horizontally. Conclusion: To the best of our knowledge, this is the first report of E. fergusonii carrying the tet(X4) gene isolated from a pig; this report provides insight into the AMR characteristics of E. fergusonii and offers insight into public health.http://www.sciencedirect.com/science/article/pii/S2213716522001655Escherichia fergusoniiTigecyclineComplete genome sequencetet(X4)
spellingShingle Chunjiu Guan
Biao Tang
Hua Yang
Jiangang Ma
Yuting Huang
Canying Liu
Emergence of plasmid-mediated tigecycline resistance gene, tet(X4), in Escherichia fergusonii from pigs
Journal of Global Antimicrobial Resistance
Escherichia fergusonii
Tigecycline
Complete genome sequence
tet(X4)
title Emergence of plasmid-mediated tigecycline resistance gene, tet(X4), in Escherichia fergusonii from pigs
title_full Emergence of plasmid-mediated tigecycline resistance gene, tet(X4), in Escherichia fergusonii from pigs
title_fullStr Emergence of plasmid-mediated tigecycline resistance gene, tet(X4), in Escherichia fergusonii from pigs
title_full_unstemmed Emergence of plasmid-mediated tigecycline resistance gene, tet(X4), in Escherichia fergusonii from pigs
title_short Emergence of plasmid-mediated tigecycline resistance gene, tet(X4), in Escherichia fergusonii from pigs
title_sort emergence of plasmid mediated tigecycline resistance gene tet x4 in escherichia fergusonii from pigs
topic Escherichia fergusonii
Tigecycline
Complete genome sequence
tet(X4)
url http://www.sciencedirect.com/science/article/pii/S2213716522001655
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