Antimicrobial resistance, virulence factors and phylogenetic profiles of Vibrio parahaemolyticus in the eastern coast of Shenzhen

Vibrio parahaemolyticus (V. parahaemolyticus) is a major food-borne pathogen which causes human gastroenteritis. Since the characteristics of V. parahaemolyticus remain unknown, 220 isolates selected from clinical and environmental samples in Dapeng of Shenzhen were tested for the presence of two he...

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Main Authors: Xian Qiang Lian, Guo Dong Liu, Miao Fen Huang, Qiu Hua Fan, Zi Dan Lin
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-11-01
Series:Frontiers in Microbiology
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Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2024.1452942/full
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author Xian Qiang Lian
Guo Dong Liu
Miao Fen Huang
Qiu Hua Fan
Zi Dan Lin
author_facet Xian Qiang Lian
Guo Dong Liu
Miao Fen Huang
Qiu Hua Fan
Zi Dan Lin
author_sort Xian Qiang Lian
collection DOAJ
description Vibrio parahaemolyticus (V. parahaemolyticus) is a major food-borne pathogen which causes human gastroenteritis. Since the characteristics of V. parahaemolyticus remain unknown, 220 isolates selected from clinical and environmental samples in Dapeng of Shenzhen were tested for the presence of two hemolysin-expressing genes tdh and trh. Among 27 clinical isolates, 26 carrired the tdh gene, and the other one carried both tdh and trh genes, however neither genes were detected in environmental isolates. Meanwhile, antimicrobial susceptibility profiles revealed the isolates with high frequency of resistance to ampicillin (77.73%) and colistin (71.82%) and medium to streptomycin (57.27%). Genetically, by whole genome sequencing (WGS), comparative genomics studies was performed on isolates from various districts and GenBank. Data analysis showed that antimicrobial resistance genes (ARGs) blaCARB, tet(34) and tet(35) were harbored in all genomes and other ARGs was absent in the genomes of 27 clinical isolates. Besides, little regional difference was observed. As for virulence factors, MAM7, T3SS1, T3SS1 secret effector, T3SS2, T3SS2 secret effector, and VpadF were carried by most isolates. Two isolates from other districts were tdh gene positive which clustered with clinical isolates from Dapeng in the same clade, indicating close genetic distance. This study revealed the widely distribution of V. parahaemolyticus in Shenzhen and the diverse ARGs and virulence genes it carried. Furthermore, pathways that pathogen disseminated through were discussed.
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spelling doaj-art-5607b04af10f42f88180d33da4dafd542024-11-11T06:10:33ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2024-11-011510.3389/fmicb.2024.14529421452942Antimicrobial resistance, virulence factors and phylogenetic profiles of Vibrio parahaemolyticus in the eastern coast of ShenzhenXian Qiang LianGuo Dong LiuMiao Fen HuangQiu Hua FanZi Dan LinVibrio parahaemolyticus (V. parahaemolyticus) is a major food-borne pathogen which causes human gastroenteritis. Since the characteristics of V. parahaemolyticus remain unknown, 220 isolates selected from clinical and environmental samples in Dapeng of Shenzhen were tested for the presence of two hemolysin-expressing genes tdh and trh. Among 27 clinical isolates, 26 carrired the tdh gene, and the other one carried both tdh and trh genes, however neither genes were detected in environmental isolates. Meanwhile, antimicrobial susceptibility profiles revealed the isolates with high frequency of resistance to ampicillin (77.73%) and colistin (71.82%) and medium to streptomycin (57.27%). Genetically, by whole genome sequencing (WGS), comparative genomics studies was performed on isolates from various districts and GenBank. Data analysis showed that antimicrobial resistance genes (ARGs) blaCARB, tet(34) and tet(35) were harbored in all genomes and other ARGs was absent in the genomes of 27 clinical isolates. Besides, little regional difference was observed. As for virulence factors, MAM7, T3SS1, T3SS1 secret effector, T3SS2, T3SS2 secret effector, and VpadF were carried by most isolates. Two isolates from other districts were tdh gene positive which clustered with clinical isolates from Dapeng in the same clade, indicating close genetic distance. This study revealed the widely distribution of V. parahaemolyticus in Shenzhen and the diverse ARGs and virulence genes it carried. Furthermore, pathways that pathogen disseminated through were discussed.https://www.frontiersin.org/articles/10.3389/fmicb.2024.1452942/fullVibrio parahaemolyticusantimicrobial resistancevirulence factorsphylogeneticSNP (single nucleotide polymorphism)
spellingShingle Xian Qiang Lian
Guo Dong Liu
Miao Fen Huang
Qiu Hua Fan
Zi Dan Lin
Antimicrobial resistance, virulence factors and phylogenetic profiles of Vibrio parahaemolyticus in the eastern coast of Shenzhen
Frontiers in Microbiology
Vibrio parahaemolyticus
antimicrobial resistance
virulence factors
phylogenetic
SNP (single nucleotide polymorphism)
title Antimicrobial resistance, virulence factors and phylogenetic profiles of Vibrio parahaemolyticus in the eastern coast of Shenzhen
title_full Antimicrobial resistance, virulence factors and phylogenetic profiles of Vibrio parahaemolyticus in the eastern coast of Shenzhen
title_fullStr Antimicrobial resistance, virulence factors and phylogenetic profiles of Vibrio parahaemolyticus in the eastern coast of Shenzhen
title_full_unstemmed Antimicrobial resistance, virulence factors and phylogenetic profiles of Vibrio parahaemolyticus in the eastern coast of Shenzhen
title_short Antimicrobial resistance, virulence factors and phylogenetic profiles of Vibrio parahaemolyticus in the eastern coast of Shenzhen
title_sort antimicrobial resistance virulence factors and phylogenetic profiles of vibrio parahaemolyticus in the eastern coast of shenzhen
topic Vibrio parahaemolyticus
antimicrobial resistance
virulence factors
phylogenetic
SNP (single nucleotide polymorphism)
url https://www.frontiersin.org/articles/10.3389/fmicb.2024.1452942/full
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