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Guo Y, Zeng C, Ma C, Cai H, Jiang X, Zhai S, Xu X, Lin M. Comparative genomics analysis of the multidrug-resistant Aeromonas hydrophila MX16A providing insights into antibiotic resistance genes. Front Cell Infect Microbiol 2022; 12:1042350. [PMID: 36405966 PMCID: PMC9669441 DOI: 10.3389/fcimb.2022.1042350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 10/18/2022] [Indexed: 11/25/2023] Open
Abstract
In this paper, the whole genome of the multidrug-resistant Aeromonas hydrophila MX16A was comprehensively analyzed and compared after sequencing by PacBio RS II. To shed light on the drug resistance mechanism of A. hydrophila MX16A, a Kirby-Bauer disk diffusion method was used to assess the phenotypic drug susceptibility. Importantly, resistance against β-lactam, sulfonamides, rifamycins, macrolides, tetracyclines and chloramphenicols was largely consistent with the prediction analysis results of drug resistance genes in the CARD database. The varied types of resistance genes identified from A. hydrophila MX16A revealed multiple resistance mechanisms, including enzyme inactivation, gene mutation and active effusion. The publicly available complete genomes of 35 Aeromonas hydrophila strains on NCBI, including MX16A, were downloaded for genomic comparison and analysis. The analysis of 33 genomes with ANI greater than 95% showed that the pan-genome consisted of 9556 genes, and the core genes converged to 3485 genes. In summary, the obtained results showed that A. hydrophila exhibited a great genomic diversity as well as diverse metabolic function and it is believed that frequent exchanges between strains lead to the horizontal transfer of drug resistance genes.
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Affiliation(s)
- Yuxin Guo
- Fisheries College, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen, Fujian, China
| | - Chenxi Zeng
- Fisheries College, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen, Fujian, China
| | - Chenjie Ma
- Fisheries College, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen, Fujian, China
| | - Hongjiao Cai
- Fisheries College, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen, Fujian, China
| | - Xinglong Jiang
- Fisheries College, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen, Fujian, China
| | - Shaowei Zhai
- Fisheries College, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen, Fujian, China
| | - Xiaojin Xu
- Fisheries College, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen, Fujian, China
| | - Mao Lin
- Fisheries College, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen, Fujian, China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Xiamen, Fujian, China
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Mohanty S, Ali SM, Singh PK. Necrotizing fasciitis and gas gangrene due to Aeromonas hydrophila in an immunocompetent host: A rare entity. IDCases 2022; 28:e01508. [PMID: 35615702 PMCID: PMC9125631 DOI: 10.1016/j.idcr.2022.e01508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/02/2022] [Accepted: 05/16/2022] [Indexed: 11/12/2022] Open
Abstract
Aeromonas hydrophila, widely distributed in various aquatic environments, is recognized as emerging opportunistic pathogens mainly causing gastrointestinal and wound infections. Necrotizing fasciitis and gas gangrene attributable to A. hydrophila are believed to develop mainly in immunocompromised hosts and have required amputation as a life-saving measure in many of these individuals. The present case re-emphasizes the virulent nature of this organism requiring amputation even in an immunocompetent host and hence, the critical need for early recognition and appropriate targeted therapy, especially after minor traumatic injuries which usually tend to get neglected.
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Bücker R, Krug SM, Rosenthal R, Günzel D, Fromm A, Zeitz M, Chakraborty T, Fromm M, Epple HJ, Schulzke JD. Aerolysin From Aeromonas hydrophila Perturbs Tight Junction Integrity and Cell Lesion Repair in Intestinal Epithelial HT-29/B6 Cells. J Infect Dis 2011; 204:1283-92. [DOI: 10.1093/infdis/jir504] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Abstract
Over the past decade, the genus Aeromonas has undergone a number of significant changes of practical importance to clinical microbiologists and scientists alike. In parallel with the molecular revolution in microbiology, several new species have been identified on a phylogenetic basis, and the genome of the type species, A. hydrophila ATCC 7966, has been sequenced. In addition to established disease associations, Aeromonas has been shown to be a significant cause of infections associated with natural disasters (hurricanes, tsunamis, and earthquakes) and has been linked to emerging or new illnesses, including near-drowning events, prostatitis, and hemolytic-uremic syndrome. Despite these achievements, issues still remain regarding the role that Aeromonas plays in bacterial gastroenteritis, the extent to which species identification should be attempted in the clinical laboratory, and laboratory reporting of test results from contaminated body sites containing aeromonads. This article provides an extensive review of these topics, in addition to others, such as taxonomic issues, microbial pathogenicity, and antimicrobial resistance markers.
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Lamy B, Laurent F, Kodjo A. Validation of a partialrpoBgene sequence as a tool for phylogenetic identification of aeromonads isolated from environmental sources. Can J Microbiol 2010; 56:217-28. [DOI: 10.1139/w10-006] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A collection of 50 aeromonads isolated from environmental sources were studied, together with all known Aeromonas nomenspecies, by phenotypic, amplified 16S rDNA restriction analysis (16S rDNA RFLP) and by partial sequence alignment of both 16S rDNA and rpoB genes. Although most of the type strain showed a unique phenotypic pattern, a database constructed on type strain phenotype allowed the identification of only 24% of the isolates. Analysis of 16S rDNA RFLP and the rpoB sequence were almost concordant in identifying environmental isolates at the species level, except for strains belonging to Aeromonas caviae spp., which were not differentiated from Aeromonas aquariorum , nor Aeromonas hydrophila susbsp. dhakensis by 16S rDNA RFLP. In addition, rpoB gene analysis clustered separately a group of isolates found in snails within the A. hydrophila species. In contrast to 16S rDNA RFLP and rpoB, the partial 16S rDNA sequence analysis was weak in resolving species identity. Part of these results, phenotypic and phylogenetic data, showed that Aeromonas molluscorum and Aeromonas sharmana are distant from all other Aeromonas species and that the type species of A. hydrophila subsp. anaerogenes is similar to A. caviae and should be considered synonymous.
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Affiliation(s)
- Brigitte Lamy
- Laboratoire de biologie, Centre Hospitalier du Bassin de Thau, 34207 Sète CEDEX, France
- Laboratoire de bactériologie de l’Hôpital de la Croix-Rousse, 93, Grande-rue de la Croix-Rousse, 69004 Lyon CEDEX 4, France
- UMR 5557, Écologie microbienne, Université Claude Bernard Lyon 1, Université de Lyon, École nationale vétérinaire de Lyon, 69280 Marcy-l’Étoile, France
- Groupe Français d’étude sur les Aeromonas (GFA)
| | - Fréderic Laurent
- Laboratoire de biologie, Centre Hospitalier du Bassin de Thau, 34207 Sète CEDEX, France
- Laboratoire de bactériologie de l’Hôpital de la Croix-Rousse, 93, Grande-rue de la Croix-Rousse, 69004 Lyon CEDEX 4, France
- UMR 5557, Écologie microbienne, Université Claude Bernard Lyon 1, Université de Lyon, École nationale vétérinaire de Lyon, 69280 Marcy-l’Étoile, France
- Groupe Français d’étude sur les Aeromonas (GFA)
| | - Angeli Kodjo
- Laboratoire de biologie, Centre Hospitalier du Bassin de Thau, 34207 Sète CEDEX, France
- Laboratoire de bactériologie de l’Hôpital de la Croix-Rousse, 93, Grande-rue de la Croix-Rousse, 69004 Lyon CEDEX 4, France
- UMR 5557, Écologie microbienne, Université Claude Bernard Lyon 1, Université de Lyon, École nationale vétérinaire de Lyon, 69280 Marcy-l’Étoile, France
- Groupe Français d’étude sur les Aeromonas (GFA)
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Herrera FA, Horton K, Suliman A, Buncke GM. Aeromonas hydrophila infection causing delayed vascular thrombosis in a nearly amputated finger. J Hand Surg Am 2007; 32:1058-60. [PMID: 17826563 DOI: 10.1016/j.jhsa.2007.05.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2007] [Revised: 05/30/2007] [Accepted: 05/30/2007] [Indexed: 02/02/2023]
Abstract
We discuss an unusual case of Aeromonas hydrophila infection in a partially amputated digit from contaminated animal products resulting in delayed vascular thrombosis and amputation.
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Affiliation(s)
- Fernando A Herrera
- The Buncke Clinic and Department of Microsurgery, California Pacific Medical Center, San Francisco, CA 94114, USA.
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