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Li Y, Wangjiang T, Sun Z, Shi L, Chen S, Chen L, Guo X, Wu W, Xiong G, Wang L. Inhibition mechanism of crude lipopeptide from Bacillus subtilis against Aeromonas veronii growth, biofilm formation, and spoilage of channel catfish flesh. Food Microbiol 2024; 120:104489. [PMID: 38431332 DOI: 10.1016/j.fm.2024.104489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 03/05/2024]
Abstract
Aeromonas veronii is associated with food spoilage and some human diseases, such as diarrhea, gastroenteritis, hemorrhagic septicemia or asymptomatic and even death. This research investigated the mechanism of the growth, biofilm formation, virulence, stress resistance, and spoilage potential of Bacillus subtilis lipopeptide against Aeromonas veronii. Lipopeptides suppressed the transmembrane transport of Aeromonas veronii by changing the cell membrane's permeability, the structure of membrane proteins, and Na+/K+-ATPase. Lipopeptide significantly reduced the activities of succinate dehydrogenase (SDH) and malate dehydrogenase (MDH) by 86.03% and 56.12%, respectively, ultimately slowing Aeromonas veronii growth. Lipopeptides also restrained biofilm formation by inhibiting Aeromonas veronii motivation and extracellular polysaccharide secretion. Lipopeptides downregulated gene transcriptional levels related to the virulence and stress tolerance of Aeromonas veronii. Furthermore, lipopeptides treatment resulted in a considerable decrease in the extracellular protease activity of Aeromonas veronii, which restrained the decomposing of channel catfish flesh. This research provides new insights into lipopeptides for controlling Aeromonas veronii and improving food safety.
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Affiliation(s)
- Yali Li
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Tianqi Wangjiang
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China; State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Sciences and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Zhida Sun
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Liu Shi
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Sheng Chen
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Lang Chen
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Xiaojia Guo
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Wenjin Wu
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Guangquan Xiong
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Lan Wang
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China.
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Shao L, Dong Y, Chen S, Sheng J, Cai L, Xu X, Wang H. Revealing extracellular protein profile and excavating spoilage-related proteases of Aeromonas salmonicida based on multi-omics investigation. Int J Biol Macromol 2024; 265:130916. [PMID: 38492699 DOI: 10.1016/j.ijbiomac.2024.130916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/12/2024] [Accepted: 03/13/2024] [Indexed: 03/18/2024]
Abstract
Aeromonas is a ubiquitous aquatic bacteria, and it is a significant factor contributing to meat spoilage during processing and consumption. The abilities of Aeromonas salmonicida 29 and 57, which exhibit spoilage heterogeneity, to secrete protease, lipase, hemolysin, gelatinase, amylase, and lecithinase were confirmed by plate method. A total of 3948 proteins were identified by ITRAQ in extracellular secretions of A. salmonicida, and 16 proteases were found to be potentially related to spoilage ability. The complete genome sequence of A. salmonicida 57 consists of one circular chromosome and three plasmids, while A. salmonicida 29 consists of one circular chromosome, without a plasmid. Transcriptomic analysis revealed a significant number of DEGs were up-regulated in A. salmonicida 29, which were mainly enriched in metabolic pathways (e.g., amino acid metabolism, carbohydrate metabolism), indicating that A. salmonicida 29 had better potential to decompose and utilize nutrients in meat. Six protease genes (2 pepB, hap, pepA, ftsI, and pepD) were excavated by combined ITRAQ with transcriptome analysis, which potentially contribute to bacterial spoilage ability and exhibit universality among other dominant spoilage bacteria. This investigation provides new insights and evidence for elucidating metabolic and spoilage phenotypic differences and provides candidate genes and strategies for future prevention and control technology development.
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Affiliation(s)
- Liangting Shao
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yang Dong
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Shanshan Chen
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Junsheng Sheng
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Linlin Cai
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xinglian Xu
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Huhu Wang
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China.
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He H, Huang X, Wen C, Liu C, Jiang B, Huang Y, Su Y, Li W. A novel defensin-like peptide C-13326 possesses protective effect against multidrug-resistant Aeromonas schubertii in hybrid snakehead (Channa maculate ♀ × Channa argus ♂). J Fish Dis 2024; 47:e13922. [PMID: 38204197 DOI: 10.1111/jfd.13922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/27/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024]
Abstract
The purpose of this study was to investigate whether a defensin-like antimicrobial peptide (C-13326 peptide) identified in Hermetia illucens could possess protective effect against multidrug-resistant Aeromonas schubertii in hybrid snakehead (Channa maculate ♀ × Channa argus ♂). The cDNA of C-13326 peptide comprised 243 nucleotides encoding 80 amino acids, with six conserved cysteine residues and the classical CSαβ structure. The recombinant expression plasmid pPIC9K-C-13326 was constructed and transformed into GS115 Pichia pastoris, and the C-13326 peptide was expressed by induction with 1% methanol. The crude extract of C-13326 peptide was precipitated by ammonium sulfate, assayed by Braford method, detected by tricine-SDS-PAGE, evaluated by BandScan software and identified by liquid chromatography-mass spectrometry. The C-13326 peptide was shown to have inhibitory activity against the growth of multidrug-resistant A. schubertii DM210910 by using the minimum growth inhibitory concentration and Oxford cup method. In addition, scanning electron microscopy analysis suggested that C-13326 peptide inhibited the growth of A. schubertii DM210910 by damaging the bacterial cell membrane. To explore the role of peptide C-13326 in vivo, hybrid snakehead was fed with peptide C-13326 as feed additives for 7 days. The results revealed that C-13326 peptide could significantly down-regulate the expression levels of IL-1β, IL-8, IL-12 and TNF-α (p < .05), and significantly improved the survival rate of hybrid snakehead after challenging with A. schubertii DM210910. Therefore, the C-13326 peptide is a promising antimicrobial agent for A. schubertii treatment in aquaculture.
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Affiliation(s)
- Huanrong He
- Innovative Institute of Animal Healthy Breeding, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Xinzhi Huang
- Innovative Institute of Animal Healthy Breeding, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Caiyi Wen
- Innovative Institute of Animal Healthy Breeding, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Chun Liu
- Innovative Institute of Animal Healthy Breeding, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Biao Jiang
- Innovative Institute of Animal Healthy Breeding, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Yanhua Huang
- Innovative Institute of Animal Healthy Breeding, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Youlu Su
- Innovative Institute of Animal Healthy Breeding, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Wei Li
- Innovative Institute of Animal Healthy Breeding, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
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Cardoso MD, Maciel OLDC, de Souza ALM, Roges EM, Gonçalves VD, Siciliano S, Rodrigues DDP, Hauser-Davis RA. Smelly shark, smelly ray: what is infecting you? J Appl Microbiol 2024; 135:lxae068. [PMID: 38486350 DOI: 10.1093/jambio/lxae068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/15/2024] [Accepted: 03/13/2024] [Indexed: 04/04/2024]
Abstract
AIMS Although elasmobranchs are consumed worldwide, bacteriological assessments for this group are still sorely lacking. In this context, this study assessed bacteria of sharks and rays from one of the most important landing ports along the Rio de Janeiro coast. METHODS AND RESULTS Bacteria were isolated from the cloacal swabs of the sampled elasmobranchs. They were cultured, and Vibrio, Aeromonas, and Enterobacterales were isolated and identified. The isolated bacteria were then biochemically identified and antimicrobial susceptibility assays were performed. Antigenic characterizations were performed for Salmonella spp. and Polymerase Chain Reaction (PCR) assays were performed to identify Escherichia coli pathotypes. Several bacteria of interest in the One Health context were detected. The most prevalent Enterobacterales were Morganella morganii and Citrobacter freundii, while Vibrio harveyi and Vibrio fluvialis were the most prevalent among Vibrio spp. and Aeromonas allosacharophila and Aeromonas veronii bv. veronii were the most frequent among Aeromonas spp. Several bacteria also displayed antimicrobial resistance, indicative of Public Health concerns. A total of 10% of Vibrio strains were resistant to trimethoprim-sulfamethoxazole and 40% displayed intermediate resistance to cefoxitin. Salmonella enterica strains displayed intermediate resistance to ciprofloxacin, nalidixic acid and streptomycin. All V. cholerae strains were identified as non-O1/non-O139. The detected E. coli strains did not exhibit pathogenicity genes. This is the first study to perform serology assessments for S. enterica subsp. enterica isolated from elasmobranchs, identifying the zoonotic Typhimurium serovar. Salmonella serology evaluations are, therefore, paramount to identify the importance of elasmobranchs in the epidemiological salmonellosis chain. CONCLUSIONS The detection of several pathogenic and antibiotic-resistant bacteria may pose significant Public Health risks in Brazil, due to high elasmobranch consumption rates, indicating the urgent need for further bacteriological assessments in this group.
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Affiliation(s)
- Maíra Duarte Cardoso
- Fundação Instituto de Pesca do Estado do Rio de Janeiro (FIPERJ). Pç. Fonseca Ramos s/n - Terminal Rodoviário Roberto Silveira, sobreloja, 24030-020 Centro, Niterói, RJ, Brazil
| | - Oswaldo Luiz de C Maciel
- Fundação Instituto de Pesca do Estado do Rio de Janeiro (FIPERJ). Pç. Fonseca Ramos s/n - Terminal Rodoviário Roberto Silveira, sobreloja, 24030-020 Centro, Niterói, RJ, Brazil
- Programa de Pós-Graduação em Geociências (Geoquímica), Departamento de Geoquímica, Instituto de Química, Universidade Federal Fluminense (UFF). Outeiro São João Baptista s/n, 24020-141 Centro, Niterói, RJ, RJ, Brazil
| | - André Luiz Medeiros de Souza
- Secretaria de Estado de Desenvolvimento Econômico, Indústria, Comércio e Serviços do Rio de Janeiro (SEDEICS-RJ). Rua Pinheiro Machado s/n, Anexo, Andar 3, 22231-090 Laranjeiras, Rio de Janeiro, RJ, Brazil
| | - Emily Moraes Roges
- Laboratório de Referência Nacional de Enteroinfecções Bacterianas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz. Av. Brasil 4365, Manguinhos 21040-900, Rio de Janeiro, RJ, Brazil
| | - Verônica Dias Gonçalves
- Laboratório de Referência Nacional de Enteroinfecções Bacterianas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz. Av. Brasil 4365, Manguinhos 21040-900, Rio de Janeiro, RJ, Brazil
| | - Salvatore Siciliano
- Escola Nacional de Saúde Pública/Fiocruz, Departamento de Ciências Biológicas. Rua Leopoldo Bulhões 1.480 - sala 10, 21040-900 Manguinhos, Rio de Janeiro, RJ, Brazil
| | - Dália Dos Prazeres Rodrigues
- Laboratório de Referência Nacional de Enteroinfecções Bacterianas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz. Av. Brasil 4365, Manguinhos 21040-900, Rio de Janeiro, RJ, Brazil
| | - Rachel Ann Hauser-Davis
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz. Av. Brasil 4365, Manguinhos 21040-900, Rio de Janeiro, RJ, Brazil
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Mahmood S, Rasool F, Hafeez-ur-Rehman M, Anjum KM. Molecular characterization of Aeromonas hydrophila detected in Channa marulius and Sperata sarwari sampled from rivers of Punjab in Pakistan. PLoS One 2024; 19:e0297979. [PMID: 38551906 PMCID: PMC10980204 DOI: 10.1371/journal.pone.0297979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/15/2024] [Indexed: 04/01/2024] Open
Abstract
Aeromonas hydrophila is one of the major pathogenic bacteria responsible for causing severe outbreaks at fish farms and is also a major global public health concern. This bacterium harbors many virulence genes. The current study was designed to evaluate the antidrug and virulence potential of A. hydrophila by amplifying its antimicrobial resistance and virulence genes using PCR and examining their effects on fish tissues and organs. A total of 960 fish samples of Channa marulius and Sperata sarwari were collected from four sites of the rivers of the Punjab, Pakistan. A. hydrophila isolates were subjected to biochemical identification and detection of virulence and antimicrobial resistance (AMR) genes by PCR. We retrieved 181 (6.46%) A. hydrophila isolates from C. marulius and 177 (6.25%) isolates from S. sarwari. Amplification through PCR revealed the incidence of virulence genes in 95.7% of isolates in C. marulius and 94.4% in S. sarwari. Similarly, amplification through PCR also revealed occurrence of AMR genes in 87.1% of isolates in C. marulius and 83.9% in S. sarwari. Histopathological examination revealed congestion (5.2%) and hepatocyte necrosis (4.6%) in liver, lamellar fusion (3.3%) and the presence of bacterial colonies (3.7%) in gills, fin erosion (6%), and the presence of biofilms (3.5%) in tail fins of infected fish. Phylogenetic tree analysis of 16S rRNA and gyrB gene of A. hydrophila revealed 100% and 97% similarity, respectively, with 16S rRNA gene and gyrB of A. hydrophila isolated in previous studies. The results of antimicrobial susceptibility testing showed that all isolates demonstrated resistance to sulfamethoxazole, ampicillin, neomycin, and norfloxacin, while susceptibility to gentamicin, chloramphenicol, and tetracycline, and intermediate resistance was observed against cefotaxime. The results concluded that examined fish samples were markedly contaminated with virulent and multidrug strains of A. hydrophila which may be of a potential health risk. The study emphasizes the responsible antimicrobial use in aquaculture and the urgent need for effective strategies to control the spread of virulence and antimicrobial resistance genes in A. hydrophila.
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Affiliation(s)
- Shahid Mahmood
- Department of Fisheries and Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Fayyaz Rasool
- Department of Zoology, Faisalabad Campus, University of Education, Lahore, Pakistan
| | - Muhammad Hafeez-ur-Rehman
- Department of Fisheries and Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Khalid Mahmood Anjum
- Department of Wildlife and Ecology, University of Veterinary and Animal Sciences, Lahore, Pakistan
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Gray HK, Bisht A, Caldera JR, Fossas Braegger NM, Cambou MC, Sakona AN, Beaird OE, Uslan DZ, Walton SC, Yang S. Nosocomial infections by diverse carbapenemase-producing Aeromonas hydrophila associated with combination of plumbing issues and heat waves. Am J Infect Control 2024; 52:337-343. [PMID: 37778710 DOI: 10.1016/j.ajic.2023.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/03/2023]
Abstract
BACKGROUND Aquatic opportunistic pathogen Aeromonas hydrophila, known to persist in low-nutrient chlorinated waters, can cause life-threatening infections. Two intensive care units experienced a cluster of Aeromonas infections following outdoor temperature spikes coinciding with recurrent plumbing issues, with fatalities due to severe underlying comorbidities co-occurring with extensively-drug resistant (XDR) Aeromonas. METHODS We investigated this cluster using whole genome sequencing to assess genetic relatedness of isolates and identify antimicrobial resistance determinants. Three A. hydrophila were isolated from patients staying in or adjacent to rooms with plumbing issues during or immediately after periods of elevated outdoor temperatures. Sinks and faucets were swabbed for culture. RESULTS All A. hydrophila clinical isolates exhibited carbapenem resistance but were not genetically related. Diverse resistance determinants corresponding to extensively-drug resistant were found, including co-occurring KPC-3 and VIM-2, OXA-232, and chromosomal CphA-like carbapenemase genes, contributing to major treatment challenges. All 3 patients were treated with multiple antibiotic regimens to overcome various carbapenemase classes and expired due to underlying comorbidities. Environmental culture yielded no Aeromonas. CONCLUSIONS While the investigation revealed no singular source of contamination, it supports a possible link between plumbing issues, elevated outdoor temperatures and incidence of nosocomial Aeromonas infections. The diversity of carbapenemase genes detected in these wastewater-derived Aeromonas warrants heightened infection prevention precautions during periods of plumbing problems especially with heat waves.
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Affiliation(s)
- Hannah K Gray
- Department of Pathology and Laboratory Medicine, UCLA David Geffen School of Medicine, Los Angeles, CA
| | - Anjali Bisht
- Department of Clinical Epidemiology and Infection Prevention, UCLA Health, Los Angeles, CA
| | - J R Caldera
- Department of Pathology and Laboratory Medicine, UCLA David Geffen School of Medicine, Los Angeles, CA
| | - Nicole M Fossas Braegger
- Department of Medicine, Division of Infection Diseases, UCLA David Geffen School of Medicine, Los Angeles, CA
| | - Mary C Cambou
- Department of Medicine, Division of Infection Diseases, UCLA David Geffen School of Medicine, Los Angeles, CA
| | - Ashlyn N Sakona
- Department of Medicine, Division of Infection Diseases, UCLA David Geffen School of Medicine, Los Angeles, CA
| | - Omer E Beaird
- Department of Medicine, Division of Infection Diseases, UCLA David Geffen School of Medicine, Los Angeles, CA
| | - Daniel Z Uslan
- Department of Clinical Epidemiology and Infection Prevention, UCLA Health, Los Angeles, CA; Department of Medicine, Division of Infection Diseases, UCLA David Geffen School of Medicine, Los Angeles, CA
| | - Shaunte C Walton
- Department of Clinical Epidemiology and Infection Prevention, UCLA Health, Los Angeles, CA
| | - Shangxin Yang
- Department of Pathology and Laboratory Medicine, UCLA David Geffen School of Medicine, Los Angeles, CA.
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Klemm EJ, Nisar MI, Bawn M, Nasrin D, Qamar FN, Page A, Qadri F, Shakoor S, Zaidi AKM, Levine MM, Dougan G, Kingsley RA. Genomic analysis of clinical Aeromonas isolates reveals genetic diversity but little evidence of genetic determinants for diarrhoeal disease. Microb Genom 2024; 10:001211. [PMID: 38451244 PMCID: PMC10999740 DOI: 10.1099/mgen.0.001211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 02/15/2024] [Indexed: 03/08/2024] Open
Abstract
Aeromonas spp. are associated with a number of infectious syndromes in humans including gastroenteritis and dysentery. Our understanding of the genetic diversity, population structure, virulence determinants and antimicrobial resistance of the genus has been limited by a lack of sequenced genomes linked to metadata. We performed a comprehensive analysis of the whole genome sequences of 447 Aeromonas isolates from children in Karachi, Pakistan, with moderate-to-severe diarrhoea (MSD) and from matched controls without diarrhoea that were collected as part of the Global Enteric Multicenter Study (GEMS). Human-associated Aeromonas isolates exhibited high species diversity and extensive antimicrobial and virulence gene content. Aeromonas caviae, A. dhankensis, A. veronii and A. enteropelogenes were all significantly associated with MSD in at least one cohort group. The maf2 and lafT genes that encode components of polar and lateral flagella, respectively, exhibited a weak association with isolates originating from cases of gastroenteritis.
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Affiliation(s)
| | - Muhammad Imran Nisar
- Department of Paediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Matt Bawn
- Quadram Institute Bioscience, Norwich, UK
- Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Dilruba Nasrin
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Farah Naz Qamar
- Department of Paediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | | | - Farheen Qadri
- Department of Paediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Sadia Shakoor
- Department of Paediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Anita KM Zaidi
- Department of Paediatrics and Child Health, Aga Khan University, Karachi, Pakistan
- Bill & Melinda Gates Foundation, Seattle, Washington, USA
| | - Myron M. Levine
- Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Gordon Dougan
- Cambridge Institute of Therapeutic Immunology & Infectious Disease, University of Cambridge, England, UK
| | - Robert A. Kingsley
- Quadram Institute Bioscience, Norwich, UK
- School of Biological Sciences, University of East Anglia, Norwich, UK
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Mao LY, Wang Q, Lin H, Wang HN, Lei CW. Novel multidrug resistance genomic islands and transposon carrying blaVEB-1 identified in mcr-positive Aeromonas strains from raw meat in China. J Antimicrob Chemother 2024; 79:678-682. [PMID: 38319867 DOI: 10.1093/jac/dkae031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 01/18/2024] [Indexed: 02/08/2024] Open
Abstract
OBJECTIVES To characterize the genetic environments of ESBL gene blaVEB-1 in mcr-positive Aeromonas strains from raw meat in China. METHODS Whole genomes of Aeromonas strains were sequenced using the Illumina or Nanopore platforms. Genetic environments of blaVEB-1 were analysed using the BLAST program. RESULTS The blaVEB-1 gene was detected in five Aeromonas strains carrying the mcr-7-like gene. WGS revealed that all blaVEB-1 genes were located on Aeromonas chromosome, and were carried by two novel different genomic islands named Aeromonas veronii genomic islands AveGI1 and AveGI2, as well as one transposon named Tn7690. AveGI1 is a new member of the Salmonella genomic island 1 family, incorporated into the 3'-end of mnmE (trmE). AveGI2 is a novel genomic island that has a size of 23 180 bp and is incorporated into the 3'-end of syd. The MDR regions of AveGI1 and AveGI2 are two different class 1 integrons containing 10 and five resistance genes, respectively. Tn7690 is a Tn1722 derivative containing In4-type integron and Tn5393, which harbours 10 resistance genes and integrates into different positions on the chromosomes of three strains with the capacity for mobility. CONCLUSIONS We report chromosomally located novel MDR genomic islands and transposon that carry blaVEB-1 in mcr-positive Aeromonas strains. These genetic elements may mediate the spread of blaVEB-1 in Aeromonas, and may also evolve by capturing new antimicrobial resistance genes or other mobile genetic elements.
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Affiliation(s)
- Ling-Ya Mao
- College of Life Sciences, Sichuan University, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, No. 29 Wangjiang Road, 610064 Chengdu, People's Republic of China
| | - Qin Wang
- College of Life Sciences, Sichuan University, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, No. 29 Wangjiang Road, 610064 Chengdu, People's Republic of China
| | - Heng Lin
- College of Life Sciences, Sichuan University, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, No. 29 Wangjiang Road, 610064 Chengdu, People's Republic of China
| | - Hong-Ning Wang
- College of Life Sciences, Sichuan University, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, No. 29 Wangjiang Road, 610064 Chengdu, People's Republic of China
| | - Chang-Wei Lei
- College of Life Sciences, Sichuan University, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, No. 29 Wangjiang Road, 610064 Chengdu, People's Republic of China
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Peng K, Chen M, Wang Y, Tian Z, Deng L, Li T, Feng Y, Ouyang P, Huang X, Chen D, Geng Y. Genotype diversity and antibiotic resistance risk in Aeromonas hydrophila in Sichuan, China. Braz J Microbiol 2024; 55:901-910. [PMID: 37999911 PMCID: PMC10920602 DOI: 10.1007/s42770-023-01187-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/31/2023] [Indexed: 11/25/2023] Open
Abstract
Sichuan is a significant aquaculture province in China, with a total aquaculture output of 1.72 × 106 tons in 2022. One of the most significant microorganisms hurting the Sichuan aquaculture is Aeromonas hydrophila, whose genotype and antibiotic resistance are yet unknown. This study isolated a total of 64 strains of A. hydrophila from various regions during September 2019 to June 2021 within Sichuan province, China. The technique of Multi-Locus Sequence Typing (MLST) was used for the purpose of molecular typing. Meanwhile, identification of antibiotic resistance phenotype and antibiotic resistance gene was performed. The findings of the study revealed that 64 isolates exhibited 29 sequence types (ST) throughout different regions in Sichuan, with 25 of these ST types being newly identified. Notably, the ST251 emerged as the predominant sequence type responsible for the pandemic. The resistance rate of isolated strains to roxithromycin was as high as 98.3%, followed by co-trimoxazole (87.5%), sulfafurazole (87.5%), imipenem (80%), amoxicillin (60%), and clindamycin (57.8%). Fifteen strains of A. hydrophila exhibited resistance to medicines across a minimum of three categories, suggesting the development of multidrug resistance in these isolates. A total of 63 ARGs were detected from the isolates, which mediated a range of antibiotic resistance mechanisms, with deactivation and efflux potentially serving as the primary mechanisms of antibiotic resistance. This study revealed the diversity of A. hydrophila genotypes and the risk of antibiotic resistance in Sichuan, providing reference for scientific and effective control of A. hydrophila infection.
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Affiliation(s)
- Kun Peng
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road No. 211, Chengdu, 611130, Sichuan, China
| | - Mengzhu Chen
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road No. 211, Chengdu, 611130, Sichuan, China
- Chengdu Animal Disease Prevention and Control Center, Chengdu, 60041, Sichuan, China
| | - Yilin Wang
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road No. 211, Chengdu, 611130, Sichuan, China
| | - Ziqi Tian
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road No. 211, Chengdu, 611130, Sichuan, China
| | - Longjun Deng
- Yalong River Hydropower Development Company Ltd, Chengdu, Sichuan, China
| | - Tiancai Li
- Yalong River Hydropower Development Company Ltd, Chengdu, Sichuan, China
| | - Yang Feng
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road No. 211, Chengdu, 611130, Sichuan, China
| | - Ping Ouyang
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road No. 211, Chengdu, 611130, Sichuan, China
| | - Xiaoli Huang
- Department of Aquaculture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Defang Chen
- Department of Aquaculture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Yi Geng
- College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road No. 211, Chengdu, 611130, Sichuan, China.
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10
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Adah DA, Saidu L, Oniye SJ, Adah AS, Daoudu OB, Ola-Fadunsin SD. Molecular characterization and antibiotics resistance of Aeromonas species isolated from farmed African catfish Clarias gariepinus Burchell, 1822. BMC Vet Res 2024; 20:16. [PMID: 38184574 PMCID: PMC10771007 DOI: 10.1186/s12917-023-03860-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 12/19/2023] [Indexed: 01/08/2024] Open
Abstract
BACKGROUND Aeromonas species are one of the most important etiologies of diseases in fish farms, leading to clinical manifestation and mortality and are associated with public health risks. This study aimed to investigate the prevalence, phenotypic and molecular characteristics of Aeromonas species isolated from farmed Clarias gariepinus using 16 S rRNA sequencing. Additionally, their antibiogram and multiple antibiotic resistance index were determined using a disc diffusion test. RESULTS A total of 230 Aeromonas strains were isolated from Clarias gariepinus with 40.9% obtained from diseased fish, and 25% isolated from apparently healthy ones. Five different species including Aeromonas caviae, Aeromonas veronii, Aeromonas hydrophila, Aeromonas dhakensis and Aeromonas enteropelogenes were fully identified and genetically characterized. Based on the available literature, this is the first report of Aeromonas enteropelogenes from the study area. The phylogenetic analysis showed genetic heterogeneity and distance within the species and the reference strains. The multiple resistant Aeromonas species were susceptible to ciprofloxacin, gentamycin, and florfenicol. The Aeromonas species' multiple antibiotic resistance index values varied between 0.20 and 0.80 and were isolated from the farms where antibiotics were intensively used. CONCLUSIONS The diversity of multidrug-resistant Aeromonas species isolated from fish farms is a major threat to fish production giving us more understanding of epidemiology and the multidrug Aeromonas species with a MAR index of greater than 0.2 were isolated from farms where antibiotic use was widespread. As a result, a considerably increased danger of multiple antibiotic resistance spreading to the fish culture environment may impact aquaculture production. Hence there is a need for appropriate and monitored drug usage.
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Affiliation(s)
- Deborah Arimie Adah
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ilorin, Ilorin, Nigeria.
| | - Lawal Saidu
- Veterinary Teaching Hospital, Ahmadu Bello University, Zaria, Nigeria
| | - Sonnie Joshua Oniye
- Department of Biological Science, National Open University of Nigeria, Abuja, Nigeria
| | - Adakole Sylvanus Adah
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ilorin, Ilorin, Nigeria
| | - Oluwafemi Babatunde Daoudu
- Department of Veterinary Microbiology, Faculty of Veterinary Medicine, University of Ilorin, Ilorin, Nigeria
| | - Shola David Ola-Fadunsin
- Department of Veterinary Parasitology and Entomology, Faculty of Veterinary Medicine, University of Ilorin, Ilorin, Nigeria
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11
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Lagadec E, Mjølnerød EB, Jensen ØM, Plarre H, Nylund A. Multiple Aeromonas strains isolated from Atlantic salmon (Salmo salar) displaying red skin disease signs in Scandinavian rivers. J Fish Dis 2024; 47:e13870. [PMID: 37800856 DOI: 10.1111/jfd.13870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/07/2023]
Abstract
Since 2014, Atlantic salmon (Salmo salar L.) displaying clinical signs of red skin disease (RSD), including haemorrhagic and ulcerative skin lesions, have been repeatedly observed in Swedish rivers. Although the disease has since been reported in other countries, including Norway, Denmark, Ireland and the UK, no pathogen has so far been conclusively associated with RSD. In this study, the presence of 17 fish pathogens was investigated through qPCR in 18 returning Atlantic salmon with clinical signs of the disease in rivers in Sweden and Norway between 2019 and 2021. Several potential pathogens were repeatedly detected, including a protozoan (Ichthyobodo spp.), an oomycete (Saprolegnia spp.) and several bacteria (Yersinia ruckeri, Candidatus Branchiomonas cysticola, Aeromonas spp.). Cultivation on different media from ulcers and internal organs revealed high concentrations of rod-shaped bacteria typical of Aeromonadaceae. Multilocus phylogenetic analysis of different clones and single gene phylogenies of sequences obtained from the fish revealed concurrent isolation of several bacterial strains belonging to the species A. bestiarum, A. piscicola and A. sobria. While these bacterial infections may be secondary, these findings are significant for future studies on RSD and should guide the investigation of future outbreaks. However, the involvement of Aeromonas spp. as putative primary etiological agents of the disease cannot be ruled out and needs to be assessed by challenge experiments.
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Affiliation(s)
- Erwan Lagadec
- Fish Disease Research Group, Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - Even Bysveen Mjølnerød
- Fish Disease Research Group, Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - Øyvind Marius Jensen
- Fish Disease Research Group, Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - Heidrun Plarre
- Fish Disease Research Group, Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - Are Nylund
- Fish Disease Research Group, Department of Biological Sciences, University of Bergen, Bergen, Norway
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12
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Yamaguchi T, Yokota M, Jinnai M, Minh DTN, Hoang ON, Le Thi H, Thanh PN, Hoang Hoai P, Nguyen Do P, Van CD, Motooka D, Nakamura S, Kawahara R, Kumeda Y, Hase A, Nakayama T. Detection of chromosome-mediated bla NDM-1-carrying Aeromonas spp. in the intestinal contents of fresh water river fish in Ho Chi Minh City, Vietnam. Mar Pollut Bull 2024; 198:115812. [PMID: 38043208 DOI: 10.1016/j.marpolbul.2023.115812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 12/05/2023]
Abstract
The spread of antibiotic-resistant bacteria is a global problem that should be addressed through the perspective of the "one health" concept. The purpose of this study was to determine the contamination rate of antibiotic-resistant Aeromonas spp. in fresh water river fish purchased from a fish market in Vietnam. We then defined the pattern of antibiotic resistance to assess antibiotic-resistant contamination. Antibiotic-resistant Aeromonas spp. were detected in the intestinal contents of 32 of 80 fish. blaNDM-1 was detected in seven strains. Extended-spectrum β-lactamase and AmpC β-lactamase-related genes were detected in 28 strains, including blaCTX-M-55, blaCTX-M-15, blaCTX-M-1, and blaDHA,blaFOX, and blaMOX. The blaNDM-1 detected in the seven Aeromonas spp. strains were found chromosomally. This finding suggests that the blaNDM gene is stable in the natural environment and may spread widely into animals and humans via Aeromonas spp. with a transposon. Our results suggest the importance of continuing to monitor carbapenemase genes in Aeromonas spp. to evaluate the possibility that they may spread in other Enterobacterales, and to elucidate the mechanism of spread.
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Affiliation(s)
| | - Masaharu Yokota
- Division of Microbiology Osaka Institute of Public Health, Osaka, Japan
| | - Michio Jinnai
- Kanagawa Prefectural Institute of Public Health, Kanagawa, Japan
| | | | | | - Hien Le Thi
- Institute of Public Health, Ho Chi Minh City, Viet Nam
| | | | | | | | | | - Daisuke Motooka
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Shota Nakamura
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Ryuji Kawahara
- Division of Microbiology Osaka Institute of Public Health, Osaka, Japan
| | | | | | - Tatsuya Nakayama
- Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan.
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13
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Roh H, Kannimuthu D. Comparative resistome analysis of Aeromonas species in aquaculture reveals antibiotic resistance patterns and phylogeographic distribution. Environ Res 2023; 239:117273. [PMID: 37805184 DOI: 10.1016/j.envres.2023.117273] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/09/2023]
Abstract
The overuse of antibiotics in aquaculture drives the emergence of multi-drug-resistant bacteria, and antibiotic-resistant genes (ARGs) can be disseminated to other bacteria through vertical- and horizontal gene transfer (VGT and HGT) under selective pressure. Profiling the antibiotic resistome and understanding the global distribution of ARGs constitutes the first step in developing a control strategy. Hence, this study utilized extensive genomic data from hundreds of Aeromonas strains in aquaculture to profile resistome patterns and explores their association with isolation year, country, and species characteristics. Overall, ∼400 Aeromonas genomes were used to predict the ARGs from A. salmonicida, A. hydrophila, A. veronii, A. media, and A. sobria. ARGs such as sul1, tet(A), and tet(D), which display a similar proportion of positive strains among species, were subjected to phylodynamic and phylogeographic analyses. More than a hundred ARGs were identified, some of which exhibited either species-specific or non-species-specific patterns. A. salmonicida and A. media were found to have a higher proportion of species-specific ARGs than other strains, which might lead to more distinct patterns of ARG acquisition. Overall, ∼25% of strains have either sul1, tet(A), or tet(D) gene(s), but no significant difference was observed in the proportion of positive strains by species. Phylogeographic analysis revealed that the abundant numbers of sul1, tet(A), and/or tet(D) introduced in a few East Asian and North American countries could spread to both adjacent and faraway countries. In recent years, the proportions of these ARGs have dramatically increased, particularly in strains sourced from aquatic environments, suggesting control is required of the overuse of antibiotics in aquaculture. The findings of this research offer significant insights into the global dissemination of ARGs.
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Affiliation(s)
- HyeongJin Roh
- Pathogen Transmission and Disease Research Group, Institute of Marine Research, PO Box 1870, Nordnes, 5870, Bergen, Norway.
| | - Dhamotharan Kannimuthu
- Pathogen Transmission and Disease Research Group, Institute of Marine Research, PO Box 1870, Nordnes, 5870, Bergen, Norway
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14
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Bernabè G, Brun P, Pietra GD, Zatta V, Asad S, Meneghello S, Cordioli G, Lavezzo E, Valente E, Mietto S, Besutti V, Castagliuolo I. Prevalence and virulence potential of Aeromonas spp. isolated from human diarrheal samples in North East Italy. Microbiol Spectr 2023; 11:e0080723. [PMID: 37855641 PMCID: PMC10715124 DOI: 10.1128/spectrum.00807-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 09/08/2023] [Indexed: 10/20/2023] Open
Abstract
IMPORTANCE In this work, we demonstrate the epidemiologic relevance of the Aeromonas genus as the cause of infective diarrhea in North East Italy, both in children and adult subjects, with the significative presence of highly pathogenic strains. Aeromonas strains possess a heterogeneous armamentarium of pathogenicity factors that allows the microbe to affect a wide range of human intestinal epithelial cell processes that justify the ability to induce diarrhea through different mechanisms and cause diseases of variable severity, as observed for other gastrointestinal pathogens. However, it remains to be determined whether specific genotype(s) are associated with clinical pictures of different severity to implement the diagnostic and therapeutic approaches for this relevant enteric pathogen.
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Affiliation(s)
- Giulia Bernabè
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Paola Brun
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | | | - Veronica Zatta
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Shirin Asad
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Silvia Meneghello
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | | | - Enrico Lavezzo
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Elisabetta Valente
- Department of Molecular Medicine, University of Padova, Padova, Italy
- Microbiology Unit of Padua University Hospital, Padova, Italy
| | - Sofia Mietto
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Valeria Besutti
- Microbiology Unit of Padua University Hospital, Padova, Italy
| | - Ignazio Castagliuolo
- Department of Molecular Medicine, University of Padova, Padova, Italy
- Microbiology Unit of Padua University Hospital, Padova, Italy
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15
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Zhong Y, Guo S, Thong S, Schlundt J, Kwa AL. First report of environmental bla PAC-1-carrying Aeromonas enteropelogenes. Microbiol Spectr 2023; 11:e0139123. [PMID: 37909756 PMCID: PMC10714797 DOI: 10.1128/spectrum.01391-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 09/25/2023] [Indexed: 11/03/2023] Open
Abstract
The bla PAC-1 has been reported in Central Asia and Europe countries like Afghanistan and France in Aeromonas caviae and Pseudomonas aeruginosa strains from animals and patients, respectively. However, there is no record of bla PAC-1-carrying strain from the natural environment, and bla PAC-1-carrying Aeromonas has not been reported in the Asia Pacific. Here, we report the first known enviromental bla PAC-1-carrying Aeromonas enteropelogenes in the world from reservoir water in Singapore. We have performed a comprehensive genetic environment alignment and comparison of bla PAC-1 between our strain and other strains from different countries and sources and found the bla PAC-1 located on a highly conserved gene cluster. We suggest that environmental Aeromonas strains may act as a hidden reservoir involved in the circulating of bla PAC-1. The finding of conserved bla PAC-1 cluster also suggested the existence of multiple transmission pathways of bla PAC-1 in the Asia-Pacific region, involving multiple sources and different species.
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Affiliation(s)
- Yang Zhong
- Department of Pharmacy, Singapore General Hospital, Singapore, Singapore
- Department of Clinical Translational Research, Singapore General Hospital, Singapore, Singapore
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore
| | - Siyao Guo
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore
| | - Shuhua Thong
- Department of Pharmacy, Singapore General Hospital, Singapore, Singapore
| | - Joergen Schlundt
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore
| | - Andrea L. Kwa
- Department of Pharmacy, Singapore General Hospital, Singapore, Singapore
- Emerging Infectious Diseases, Duke-NUS Medical School, Singapore, Singapore
- SingHealth Duke-NUS Medicine Academic Clinical Programme, Singapore, Singapore
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16
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Chen F, Yu T, Yin Z, Wang P, Lu X, He J, Zheng Y, Zhou D, Gao B, Mu K. Uncovering the hidden threat: The widespread presence of chromosome-borne accessory genetic elements and novel antibiotic resistance genetic environments in Aeromonas. Virulence 2023; 14:2271688. [PMID: 37848422 PMCID: PMC10614715 DOI: 10.1080/21505594.2023.2271688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/11/2023] [Indexed: 10/19/2023] Open
Abstract
The emergence of antibiotic-resistant Aeromonas strains in clinical settings has presented an escalating burden on human and public health. The dissemination of antibiotic resistance in Aeromonas is predominantly facilitated by chromosome-borne accessory genetic elements, although the existing literature on this subject remains limited. Hence, the primary objective of this study is to comprehensively investigate the genomic characteristics of chromosome-borne accessory genetic elements in Aeromonas. Moreover, the study aims to uncover novel genetic environments associated with antibiotic resistance on these elements. Aeromonas were screened from nonduplicated strains collected from two tertiary hospitals in China. Complete sequencing and population genetics analysis were performed. BLAST analysis was employed to identify related elements. All newly identified elements were subjected to detailed sequence annotation, dissection, and comparison. We identified and newly designated 19 chromosomal elements, including 18 integrative and mobilizable elements (IMEs) that could be classified into four categories: Tn6737-related, Tn6836-related, Tn6840-related, and Tn6844a-related IMEs. Each class exhibited a distinct pattern in the types of resistance genes carried by the IMEs. Several novel antibiotic resistance genetic environments were uncovered in these elements. Notably, we report the first identification of the blaOXA-10 gene and blaVEB-1 gene in clinical A. veronii genome, the first presence of a tetA(E)-tetR(E) resistance gene environment within the backbone region in IMEs, and a new mcr-3.15 resistance gene environment. The implications of these findings are substantial, as they provide new insights into the evolution, structure, and dissemination of chromosomal-borne accessory elements.
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Affiliation(s)
- Fangzhou Chen
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Ting Yu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Zhe Yin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Peng Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Xiuhui Lu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Jiaqi He
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yali Zheng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Dongsheng Zhou
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Bo Gao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Kai Mu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
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17
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Ruiz de Alegría Puig C, Fernández Martínez M, De Malet Pintos Fonseca A. Virulence genes of Aeromonas spp. isolates from stool in Spain. Enferm Infecc Microbiol Clin (Engl Ed) 2023; 41:625-628. [PMID: 36842908 DOI: 10.1016/j.eimce.2022.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 12/17/2022] [Indexed: 02/28/2023]
Abstract
INTRODUCTION The role of Aeromonas species in gastrointestinal disease is controversial. The aim was to analyze not only the virulence genes between different species of Aeromonas isolated from feces, but the distribution of these virulence genes between enterotoxigenic strains and co-pathogen strains. METHODS Retrospective study of isolates of Aeromonas spp. in feces (2016-2021). The protocol included coproculture, identification by MALDI-TOF and confirmation by multiplex PCR. SPSS Statistics program was used. RESULTS A total of 288 strains were studied for the virulence genes between different species of Aeromonas. To compare virulence genes between Aeromonas as co-pathogen and those isolated alone, 218 strains of the global set were used; 52 as co-pathogens compared with 166 Aeromonas without associated pathogen as controls. CONCLUSIONS We found no significant differences in the distribution of virulence genes versus co-existence of co-pathogens or not. A. hydrophila is the potentially most virulent species of our set.
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Affiliation(s)
- Carlos Ruiz de Alegría Puig
- Microbiology Service, University Hospital Marqués de Valdecilla-IDIVAL, CIBERINFEC, ISCIII, Santander, Spain.
| | - Marta Fernández Martínez
- Microbiology Service, University Hospital Marqués de Valdecilla-IDIVAL, CIBERINFEC, ISCIII, Santander, Spain
| | - Ana De Malet Pintos Fonseca
- Microbiology Service, University Hospital Marqués de Valdecilla-IDIVAL, CIBERINFEC, ISCIII, Santander, Spain
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18
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Zhang L, Qiu Y, Fu Y, Li Y. Characterization of a novel bla NDM-1-harbouring transposon coexisting with tmexCD2 -toprJ2 in an Aeromonas caviae isolate. J Glob Antimicrob Resist 2023; 35:332-334. [PMID: 37918788 DOI: 10.1016/j.jgar.2023.10.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 10/20/2023] [Indexed: 11/04/2023] Open
Affiliation(s)
- Luhua Zhang
- The School of Basic Medical Science and Public Center of Experimental Technology, Southwest Medical University, Luzhou, Sichuan, China
| | - Yichuan Qiu
- Department of Clinical Laboratory, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu, Sichuan, China
| | - Yu Fu
- The School of Basic Medical Science and Public Center of Experimental Technology, Southwest Medical University, Luzhou, Sichuan, China
| | - Ying Li
- The School of Basic Medical Science and Public Center of Experimental Technology, Southwest Medical University, Luzhou, Sichuan, China.
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19
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Bychenko Banyas D, Lurie-Weinberger M, Efrati Epchtien R, Laviad Shitrit S, Temkin E, Schwartz D, Keren-Paz A, Carmeli Y. Plasmid-encoded VCC-1 β-lactamase in a clinical isolate of Aeromonas caviae. Antimicrob Agents Chemother 2023; 67:e0070723. [PMID: 37889006 PMCID: PMC10649018 DOI: 10.1128/aac.00707-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/18/2023] [Indexed: 10/28/2023] Open
Abstract
Vibrio cholerae carbapenemase (VCC-1) is a chromosomal encoded class A carbapenemase thus far reported in environmental Vibrio cholerae isolates. Here, we report the first isolation of a blaVCC-1 -carrying Aeromonas caviae from a clinical sample in Israel. The isolate was resistant to all β-lactam agents, including carbapenems. The blaVCC-1 was located on a large plasmid. GC content suggests that the origin of the blaVCC-1 gene is neither Aeromonas nor Vibrio spp. but an unknown progenitor.
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Affiliation(s)
- Darya Bychenko Banyas
- National Institute for Antibiotic Resistance and Infection Control, Israel Ministry of Health, , Israel
| | - Mor Lurie-Weinberger
- National Institute for Antibiotic Resistance and Infection Control, Israel Ministry of Health, , Israel
| | - Reut Efrati Epchtien
- National Institute for Antibiotic Resistance and Infection Control, Israel Ministry of Health, , Israel
| | - Sivan Laviad Shitrit
- National Institute for Antibiotic Resistance and Infection Control, Israel Ministry of Health, , Israel
| | - Elizabeth Temkin
- National Institute for Antibiotic Resistance and Infection Control, Israel Ministry of Health, , Israel
| | - David Schwartz
- National Institute for Antibiotic Resistance and Infection Control, Israel Ministry of Health, , Israel
| | - Alona Keren-Paz
- National Institute for Antibiotic Resistance and Infection Control, Israel Ministry of Health, , Israel
| | - Yehuda Carmeli
- National Institute for Antibiotic Resistance and Infection Control, Israel Ministry of Health, , Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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20
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Yu K, Huang Z, Xiao Y, Bai X, Gao H, Wang D. The definition and global epidemiology of nonmobile colistin resistance (NMCR-3) determinants in Aeromonas from 1968 to 2022. Drug Resist Updat 2023; 71:101006. [PMID: 37703625 DOI: 10.1016/j.drup.2023.101006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/24/2023] [Accepted: 09/06/2023] [Indexed: 09/15/2023]
Abstract
Polymyxins are the last line of defense in infections caused by multidrug-resistant Gram-negative bacteria. The chromosomal EptA in Aeromonas genus was defined as a nonmobile colistin resistance determinant 3 (NMCR-3). A total of 14 NMCR-3 genotypes were identified. The global prevalence of Aeromonas-borne NMCRs and MCRs indicates an increasing trend from 1968 to 2022. And an index of resistance risk, i.e, the ratio of η = MCR/NMCR, was proposed to evaluate the propagation potential of NMCR-3. The colistin resistance in North America and Europe faced a high risk of increasing incidence of MCR since large proportions of NMCR-3 variants disseminated from Aeromonas sources. We concluded that NMCR-3 variants act natural progenitors for MCR-3/5/7, and the future MCR variant(s) will most likely be MCR-5 or MCR-7, which is also an early warning of next MCR(s) emerging in Aeromonas.
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Affiliation(s)
- Keyi Yu
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China; Center for Human Pathogenic Culture Collection, China CDC, Beijing 102206, China
| | - Zhenzhou Huang
- Hangzhou Center for Disease Control and Prevention, Hangzhou, Zhejiang 310021, China
| | - Yue Xiao
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China; Center for Human Pathogenic Culture Collection, China CDC, Beijing 102206, China
| | - Xuemei Bai
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China; Center for Human Pathogenic Culture Collection, China CDC, Beijing 102206, China
| | - He Gao
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China; Center for Human Pathogenic Culture Collection, China CDC, Beijing 102206, China
| | - Duochun Wang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China; Center for Human Pathogenic Culture Collection, China CDC, Beijing 102206, China.
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21
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Peng X, Zhong Z, Zhong H, Gong J, Du T, Ding L, Lan X, Tu H, Tang Q, Xia Z, Yang G, Yi S. Histopathological observation and comparative transcriptome analysis reveal immune response mechanisms to Aeromonas dhakensis infection in Macrobrachium rosenbergii. Fish Shellfish Immunol 2023; 142:109151. [PMID: 37838210 DOI: 10.1016/j.fsi.2023.109151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/06/2023] [Accepted: 10/06/2023] [Indexed: 10/16/2023]
Abstract
The Macrobrachium rosenbergii industry is threatened by various Aeromonas, resulting in high mortality of adult prawns. However, there are few studies on the immune response of M. rosenbergii infected with Aeromonas dhakensis. In this study, we observed the hepatopancreas and gills histopathologically, performed a comparative transcriptome analysis of the hepatopancreas, and analyzed the candidate gene expression of immune-related genes in the hemolymph, hepatopancreas, and gills of M. rosenbergii that had been infected with A. dhakensis. Histopathology revealed the hepatopancreas was successively inflamed, followed by cellular vacuolation, lumen deformation, and finally tissue erosion; partial and severe inflammation of the gills occurred successively, and eventually the gill tissue atrophy and the gill filaments detached from the gill arch. Transcriptome analysis showed that a total of 77,742 unigenes and 8664 differentially expressed genes (DEGs), and the immune-related DEGs were mainly enriched in lysosome and phagosome pathways. In addition, 4 immune-related candidate genes (RhoA, CASP9, PKC, and DSCIGN) based on KEGG and PPI analysis were monitored at 6, 12, and 24h post injection (hpi) in hepatopancreas, hemolymph and gills. Their spatio-temporal expression results indicated that A. dhakensis have activated the immune system of M. rosenbergii. The present study may provide new information on the complex immune mechanism of M. rosenbergii.
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Affiliation(s)
- Xin Peng
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, 313000, China
| | - Zhenxiao Zhong
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, 313000, China
| | - Hua Zhong
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, 313000, China
| | - Jinlin Gong
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, 313000, China
| | - Tingting Du
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, 313000, China
| | - Li Ding
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, 313000, China
| | - Xuan Lan
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, 313000, China
| | - Haihui Tu
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, 313000, China
| | - Qiongying Tang
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, 313000, China.
| | - Zhenglong Xia
- Jiangsu Shufeng Prawn Breeding Co. LTD, Gaoyou, 225654, China
| | - Guoliang Yang
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, 313000, China; Jiangsu Shufeng Prawn Breeding Co. LTD, Gaoyou, 225654, China
| | - Shaokui Yi
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, 313000, China.
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22
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Ghosh S, Kar P, Chakrabarti S, Pradhan S, Mondal KC, Ghosh K. Whole genome sequence analysis of Aeromonas-infecting bacteriophage AHPMCC7, a new species of genus Ahphunavirus and its application in Litopenaeus vannamei culture. Virology 2023; 588:109887. [PMID: 37774603 DOI: 10.1016/j.virol.2023.109887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/12/2023] [Accepted: 09/14/2023] [Indexed: 10/01/2023]
Abstract
Aeromonas hydrophila, a Gram-negative pathogenic bacterium, is responsible for huge economic losses in aquaculture. In this study, we evaluated the efficacy of bacteriophage AHPMCC7 which was isolated by using A. hydrophila MTCC 1739 as a host. This bacteriophage exhibited 10 min latent period and burst size was 275. In liquid culture, bacteriophage AHPMCC7 could completely lyse A. hydrophila MTCC 1739 after 2 h. AHPMCC7 genome was 42,277 bp long with 58.9% G + C content. The genome consisted of 48 CDSs and no tRNA. The comparative genomic analyses clearly implied that AHPMCC7 might represent a novel species of the genus Aphunavirus under Autographiviridae family. Bacteriophage AHPMCC7 could survive at broad pH (3-10), temperature (4-37 °C), and salinity (0-40 ppt). In aquarium trial, AHPMCC7 could control A. hydrophila MTCC 1739 without affecting the survivability of Litopenaeus vannamei. Clearly, the bacteriophage AHPMCC7 might be used in shrimp aquaculture as a biocontrol agent.
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Affiliation(s)
- Smita Ghosh
- Department of Biological Sciences, Midnapore City College, Midnapore, West Bengal, India; Biodiversity and Environmental Studies Research Center, Midnapore City College affiliated to Vidyasagar University, Midnapore, West Bengal, India
| | - Priyanka Kar
- Department of Biological Sciences, Midnapore City College, Midnapore, West Bengal, India; Biodiversity and Environmental Studies Research Center, Midnapore City College affiliated to Vidyasagar University, Midnapore, West Bengal, India
| | - Sudipta Chakrabarti
- Department of Biological Sciences, Midnapore City College, Midnapore, West Bengal, India
| | - Shrabani Pradhan
- Department of Biological Sciences, Midnapore City College, Midnapore, West Bengal, India
| | | | - Kuntal Ghosh
- Department of Biological Sciences, Midnapore City College, Midnapore, West Bengal, India.
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23
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Ye Y, Tong G, Chen G, Huang L, Huang L, Jiang X, Wei X, Lin M. The characterization and genome analysis of a novel phage phiA034 targeting multiple species of Aeromonas. Virus Res 2023; 336:199193. [PMID: 37579848 PMCID: PMC10480305 DOI: 10.1016/j.virusres.2023.199193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 08/04/2023] [Accepted: 08/07/2023] [Indexed: 08/16/2023]
Abstract
Aeromonas is one of the most serious pathogens in freshwater aquaculture. Overuse of antibiotics for the treatment of fish diseases has led to the frequent occurrence of drug-resistant strains. Phage therapy is an alternative approach to overcoming the multi-drug resistance associated with antibiotics. In this study, a novel phage phiA034 targeting the host A. veronii A034 was isolated. The phage could infect 14 strains of 4 species Aeromonas. The phage phiA034 displayed head-tail structure with an icosahedral head in the TEM image. At the optimal MOI of 1, it had a latent period of nearly 20 minutes and a burst size of 286 PFU/cell. Besides, the phage phiA034 exhibited high tolerance to a wide range of temperature (30-70 °C) and acid-base (pH 6.0-10.0). The whole genome of phage phiA034 was sequenced with a size of 61,443 bp and annotated with 82 ORFs, mainly related to structure, DNA replication, and lysis. Based on the analysis and comparison of the genomes and proteomes, phage phiA034 could be classified as a novel species of an existing genus Duplodnaviria Heunggongvirae, Uroviricota, Caudoviricetes, Casjensviridae, Sharonstreetvirus. These findings have expanded the species bank and genomes library of bacterial virus and will promote the application of phage therapy in Aeromonas disease.
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Affiliation(s)
- Yingying Ye
- Fisheries College, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen, Fujian, China
| | - Guixiang Tong
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, China
| | - Gonghao Chen
- Fisheries College, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen, Fujian, China
| | - Lixing Huang
- Fisheries College, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen, Fujian, China
| | - Liqiang Huang
- 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
| | - Xinxian Wei
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, 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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24
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Aoki M, Takemura Y, Kawakami S, Yoochatchaval W, Tran P. T, Tomioka N, Ebie Y, Syutsubo K. Quantitative detection and reduction of potentially pathogenic bacterial groups of Aeromonas, Arcobacter, Klebsiella pneumoniae species complex, and Mycobacterium in wastewater treatment facilities. PLoS One 2023; 18:e0291742. [PMID: 37768925 PMCID: PMC10538766 DOI: 10.1371/journal.pone.0291742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/05/2023] [Indexed: 09/30/2023] Open
Abstract
Water quality parameters influence the abundance of pathogenic bacteria. The genera Aeromonas, Arcobacter, Klebsiella, and Mycobacterium are among the representative pathogenic bacteria identified in wastewater. However, information on the correlations between water quality and the abundance of these bacteria, as well as their reduction rate in existing wastewater treatment facilities (WTFs), is lacking. Hence, this study aimed to determine the abundance and reduction rates of these bacterial groups in WTFs. Sixty-eight samples (34 influent and 34 non-disinfected, treated, effluent samples) were collected from nine WTFs in Japan and Thailand. 16S rRNA gene amplicon sequencing analysis revealed the presence of Aeromonas, Arcobacter, and Mycobacterium in all influent wastewater and treated effluent samples. Quantitative real-time polymerase chain reaction (qPCR) was used to quantify the abundance of Aeromonas, Arcobacter, Klebsiella pneumoniae species complex (KpSC), and Mycobacterium. The geometric mean abundances of Aeromonas, Arcobacter, KpSC, and Mycobacterium in the influent wastewater were 1.2 × 104-2.4 × 105, 1.0 × 105-4.5 × 106, 3.6 × 102-4.3 × 104, and 6.9 × 103-5.5 × 104 cells mL-1, respectively, and their average log reduction values were 0.77-2.57, 1.00-3.06, 1.35-3.11, and -0.67-1.57, respectively. Spearman's rank correlation coefficients indicated significant positive or negative correlations between the abundances of the potentially pathogenic bacterial groups and Escherichia coli as well as water quality parameters, namely, chemical/biochemical oxygen demand, total nitrogen, nitrate-nitrogen, nitrite-nitrogen, ammonium-nitrogen, suspended solids, volatile suspended solids, and oxidation-reduction potential. This study provides valuable information on the development and appropriate management of WTFs to produce safe, hygienic water.
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Affiliation(s)
- Masataka Aoki
- Regional Environment Conservation Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
| | - Yasuyuki Takemura
- Regional Environment Conservation Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
| | - Shuji Kawakami
- Department of Civil Engineering, National Institute of Technology (KOSEN), Nagaoka College, Nagaoka, Niigata, Japan
| | - Wilasinee Yoochatchaval
- Department of Environmental Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand
| | - Thao Tran P.
- Regional Environment Conservation Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
| | - Noriko Tomioka
- Regional Environment Conservation Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
| | - Yoshitaka Ebie
- Material Cycles Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
| | - Kazuaki Syutsubo
- Regional Environment Conservation Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
- Research Center of Water Environment Technology, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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25
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Canellas ALB, Laport MS. The biotechnological potential of Aeromonas: a bird's eye view. Crit Rev Microbiol 2023; 49:543-555. [PMID: 35687715 DOI: 10.1080/1040841x.2022.2083940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/18/2022] [Accepted: 05/25/2022] [Indexed: 11/03/2022]
Abstract
The genus Aeromonas comprises Gram-negative bacilli widely distributed in aquatic habitats that can also be found in the terrestrial environment and in close association with humans and animals. Aeromonas spp. are particularly versatile bacteria, with high genomic plasticity and notable capacity to adapt to different environments and extreme conditions. On account of being mostly associated with their pathogenic potential, research on the biotechnological potentialities of Aeromonas spp. is considerably scarce when compared to other bacterial groups. Nonetheless, studies over the years have been hinting at several interesting hidden potentialities in this bacterial group, especially with the recent advances in whole-genome sequencing, unveiling Aeromonas spp. as interesting candidates for the discovery of novel industrial biocatalysts, bioremediation strategies, and biopolyester production. In this context, the present study aims to provide an overview of the main biotechnological applications reported in the genus Aeromonas and provide new insights into the further exploration of these frequently overlooked, yet fascinating, bacteria.
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Affiliation(s)
- Anna Luiza Bauer Canellas
- Laboratório de Bacteriologia Molecular e Marinha, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Marinella Silva Laport
- Laboratório de Bacteriologia Molecular e Marinha, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
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26
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Jones DC, LaMartina EL, Lewis JR, Dahl AJ, Nadig N, Szabo A, Newton RJ, Skwor TA. One Health and Global Health View of Antimicrobial Susceptibility through the "Eye" of Aeromonas: Systematic Review and Meta-Analysis. Int J Antimicrob Agents 2023; 62:106848. [PMID: 37201798 PMCID: PMC10524465 DOI: 10.1016/j.ijantimicag.2023.106848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 04/26/2023] [Accepted: 05/09/2023] [Indexed: 05/20/2023]
Abstract
Antimicrobial resistance (AMR) is one of the most pressing public health concerns; therefore, it is imperative to advance our understanding of the factors influencing AMR from Global and One Health perspectives. To address this, Aeromonas populations were identified using 16S rRNA gene libraries among human, agriculture, aquaculture, drinking water, surface water, and wastewater samples, supporting its use as indicator bacteria to study AMR. A systematic review and meta-analysis was then performed from Global and One Health perspectives, including data from 221 articles describing 15 891 isolates from 57 countries. The interconnectedness of different environments was evident as minimal differences were identified between sectors among 21 different antimicrobials. However, resistance to critically important antibiotics (aztreonam and cefepime) was significantly higher among wastewater populations compared with clinical isolates. Additionally, isolates from untreated wastewater typically exhibited increased AMR compared with those from treated wastewater. Furthermore, aquaculture was associated with increased AMR to ciprofloxacin and tetracycline compared with wild-caught seafood. Using the World Health Organization AWaRe classifications, countries with lower consumption of "Access" compared to "Watch" drugs from 2000 to 2015 demonstrated higher AMR levels. The current analysis revealed negative correlations between AMR and anthropogenic factors, such as environmental performance indices and socioeconomic standing. Environmental health and sanitation were two of the environmental factors most strongly correlated with AMR. The current analysis highlights the negative impacts of "Watch" drug overconsumption, anthropogenic activity, absence of wastewater infrastructure, and aquaculture on AMR, thus stressing the need for proper infrastructure and global regulations to combat this growing problem.
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Affiliation(s)
| | - Emily Lou LaMartina
- School of Freshwater Sciences, University of Wisconsin - Milwaukee, Milwaukee, WI, USA
| | - Jenna Rachel Lewis
- Department of Biological Sciences, University of Wisconsin - Milwaukee, Milwaukee, WI, USA
| | - Andrew James Dahl
- Department of Biomedical Sciences, University of Wisconsin - Milwaukee, Milwaukee, WI, USA
| | - Nischala Nadig
- Department of Biomedical Sciences, University of Wisconsin - Milwaukee, Milwaukee, WI, USA
| | - Aniko Szabo
- Division of Biostatistics, Institute for Health & Equity, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Ryan J Newton
- School of Freshwater Sciences, University of Wisconsin - Milwaukee, Milwaukee, WI, USA
| | - Troy A Skwor
- Department of Biomedical Sciences, University of Wisconsin - Milwaukee, Milwaukee, WI, USA.
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27
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Xue X, Li X, Liu J, Zhu L, Zhou L, Jia J, Wang Z. Field-realistic dose of cefotaxime enhances potential mobility of β-lactam resistance genes in the gut microbiota of zebrafish (Danio rerio). Aquat Toxicol 2023; 257:106459. [PMID: 36857871 DOI: 10.1016/j.aquatox.2023.106459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 12/17/2022] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
With large amounts of cephalosporin end up in natural ecosystems, water has been acknowledged as the large reservoir of β-lactam resistance over the past decades. However, there is still insufficient knowledge available on the function of the living organisms to the transmission of antibiotic resistance. For this reason, in this study, using adult zebrafish (Danio rerio) as animal model, exposing them to environmentally relevant dose of cefotaxime for 150 days, we asked whether cefotaxime contamination accelerated β-lactam resistance in gut microbiota as well as its potential transmission. Results showed that some of β-lactam resistance genes (βRGs) were intrinsic embedded in intestinal microbiome of zebrafish even without antibiotic stressor. Across cefotaxime treatment, the abundance of most βRGs in fish gut microbiome decreased apparently in the short term firstly, and then increased with the prolonged exposure, forming distinctly divergent βRG profiles with antibiotic-untreated zebrafish. Meanwhile, with the rising concentration of cefotaxime, the range of βRGs' host-taxa expanded and the co-occurrence relationships of mobile genetics elements (MGEs) with βRGs intensified, indicating the enhancement of βRGs' mobility in gut microbiome when the fish suffered from cefotaxime contamination. Furthermore, the path of partial least squares path modeling (PLS-PM) gave an integral assessment on the specific causality of cefotaxime treatment to βRG profiles, showing that cefotaxime-mediated βRGs variation was most ascribed to the alteration of MGEs under cefotaxime stress, followed by bacterial community, functioning both direct influence as βRG-hosts and indirect effects via affecting MGEs. Finally, pathogenic bacteria Aeromonas was identified as the critical host for multiple βRGs in fish guts, and its β-lactam resistance increased over the duration time of cefotaxime exposure, suggesting the potential spreading risks for the antibiotic-resistant pathogens from environmental ecosystems to clinic. Overall, our finding emphasized cefotaxime contamination in aquatic surroundings could enhance the β-lactam resistance and its transmission mobility in fish bodies.
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Affiliation(s)
- Xue Xue
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiangju Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jialin Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Long Zhu
- College of Marine Science and Fisheries, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Linjun Zhou
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jia Jia
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zaizhao Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
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28
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Wu Y, Dong N, Cai C, Zeng Y, Lu J, Liu C, Wang H, Zhang Y, Huang L, Zhai W, Shao D, Li R, Liu D, Chen S, Zhang R. Aeromonas spp. from hospital sewage act as a reservoir of genes resistant to last-line antibiotics. Drug Resist Updat 2023; 67:100925. [PMID: 36696835 DOI: 10.1016/j.drup.2023.100925] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 12/13/2022] [Accepted: 01/09/2023] [Indexed: 01/12/2023]
Abstract
BACKGROUND Aeromonas species are opportunistic pathogens distributed widely in the ecosystem. They are known to be capable of acquiring antibiotic resistance genes, including those encoding proteins against last-line antibiotics, such as the tmexCD-toprJ, mcr and carbapenemase genes. We investigated the genomic and phenotypic characteristics of tmexCD-toprJ-positive Aeromonas strains collected from human, animals, and water samples, particularly those from hospital wastewater in China. METHODS Samples were collected from living animals, meat, water and human. Aeromonas strains in these samples were isolated in selective media. Antimicrobial resistance profiles of all Aeromonas strains were tested by the broth microdilution method. The presence of tmexCD-toprJ was verified by polymerase chain reaction (PCR). All tmexCD-toprJ-positive (n = 36) and selected tmexCD-toprJ-negative (n = 18) Aeromonas strains were subjected to whole genome sequencing. Carriage of antimicrobial resistance genes, the genetic environment of tmexCD-toprJ and genetic diversity of tmexCD-toprJ-positive Aeromonas strains were determined by bioinformatics analysis. Phylogenetic tree of the Aeromonas strains was built by using the Harvest Suite. FINDINGS Among the 636 Aeromonas strains isolated from different sources, 36 were positive for tmexCD-toprJ, with the highest prevalence of tmexCD-toprJ being found in fishes (8.8%, 95 CI% 3.6-17.2%), followed by hospital wastewater (6.5%, 95 CI% 4.3-9.3%), river water (2.0%, 0.1-10.9) and duck (1.2%, 95 CI% 3.6-17.2%). All tmexCD-toprJ-positive Aeromonas strains carried multiple antimicrobial resistance genes and exhibited resistance to different classes of antibiotics. Co-existence of tmexCD-toprJ, mcr and blaKPC-2 were identified in 21 strains. The tmexCD-toprJ-positive Aeromonas strains were genetically diverse and found to belong to four different species that could be clustered into three major lineages. The tmexCD-toprJ gene clusters were predominantly located in the chromosome (35/36) of Aeromonas spp., with only one strain carrying the plasmid-borne tmexCD-toprJ cluster. The tmexCD-toprJ genes were associated with seven different types of genetic environments, each of which carried distinct types of mobile elements that may be responsible for mediating transmission of this gene cluster.
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Affiliation(s)
- Yuchen Wu
- Department of Clinical Laboratory, Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China
| | - Ning Dong
- Department of Medical Microbiology, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, China; Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, Soochow University, Suzhou, China
| | - Chang Cai
- China Australia Joint Laboratory for Animal Health Big Data Analytics, College of Animal Science and Technology, Zhejiang Agricultural and Forestry University, Hangzhou, China
| | - Yu Zeng
- Department of Laboratory Medicine, Shenzhen University General Hospital, Shenzhen, China
| | - Jiayue Lu
- Department of Clinical Laboratory, Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China
| | - Congcong Liu
- Department of Clinical Laboratory, Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China
| | - Hanyu Wang
- New Jersey Institute of Technology, NJ, United States
| | - Yanyan Zhang
- Department of Clinical Laboratory, Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China
| | - Ling Huang
- Department of Clinical Laboratory, The Women's and Children's Hospital of Linping District, Hangzhou, China
| | - Weishuai Zhai
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Dongyan Shao
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Ruichao Li
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Jiangsu, China
| | - Dejun Liu
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Sheng Chen
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region, China.
| | - Rong Zhang
- Department of Clinical Laboratory, Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China.
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Wu J, Ye F, Qu J, Dai Z. Insight into the Antibiotic Resistance of Bacteria Isolated from Popular Aquatic Products Collected in Zhejiang, China. Pol J Microbiol 2023; 72:61-67. [PMID: 36929890 DOI: 10.33073/pjm-2023-010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/10/2023] [Indexed: 03/18/2023] Open
Abstract
The present study was aimed to obtain a close insight into the distribution and diversity of antibiotic-resistant bacteria (ARB) and antibiotic-resistance genes (ARGs) among the aquatic products collected in Zhejiang, China. A total of 136 presumptive ARB picked up from six aquatic samples were classified into 22 genera and 49 species based on the 16S rDNA sequencing. Aeromonas spp., Shewanella spp., Acinetobacter spp., Myroides spp., Pseudomonas spp., and Citrobacter spp. accounted for 80% of the ARB. Among them, 109 isolates (80.15%) exhibited resistance to at least one antibiotic. Most isolates showed resistance to not only the originally selected drug but also to one to three other tested drugs. The diversity of ARB distributed in different aquatic products was significant. Furthermore, the resistance data obtained from genotypic tests were not entirely consistent with the results of the phenotypic evaluation. The genes qnrS, tetA, floR, and cmlA were frequently detected in their corresponding phenotypic resistant isolates. In contrast, the genes sul2, aac(6')-Ib, and bla PSE were less frequently found in the corresponding phenotypically resistant strains. The high diversity and detection rate of ARB and ARGs in aquaculture might be a significant threat to the food chains closely related to human health.
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Affiliation(s)
- Jiajia Wu
- 1Institute of Seafood, Zhejiang Gongshang University, Hangzhou, China
- 3The Joint Key Laboratory of Aquatic Products Processing of Zhejiang Province, Hangzhou, China
| | - Fan Ye
- 1Institute of Seafood, Zhejiang Gongshang University, Hangzhou, China
| | | | - Zhiyuan Dai
- 1Institute of Seafood, Zhejiang Gongshang University, Hangzhou, China
- 3The Joint Key Laboratory of Aquatic Products Processing of Zhejiang Province, Hangzhou, China
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Miyagi K, Shimoji N, Oshiro H, Hirai I. Differences in flaA gene sequences, swimming motility, and biofilm forming ability between clinical and environmental isolates of Aeromonas species. Environ Sci Pollut Res Int 2023; 30:11740-11754. [PMID: 36098923 DOI: 10.1007/s11356-022-22871-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/31/2022] [Indexed: 06/15/2023]
Abstract
The flagellin A gene (flaA) sequences, swimming motility, and biofilm forming ability were investigated in order to reveal the genetic and functional differences of flagella between clinical and environmental isolates of Aeromonas species. Twenty-eight clinical and 48 environmental strains of Aeromonas species isolated in Okinawa Prefecture of Japan were used in this study. The full-length flaA genes of these strains were sequenced and aligned, and a phylogenetic tree was constructed. In addition, swimming motility and biofilm forming ability were evaluated by conventional methods. Aeromonas veronii biovar sobria and A. hydrophila clearly divided into clinical and environmental strain clusters in the flaA phylogenetic classification, and the six and 13 specific amino acids respectively, of FlaA of both species were different in clinical and environmental strains. Furthermore, the flaA size of the clinical strain of A. veronii bv. sobria was mainly 909, 924, and 939 bp, and the size of A. hydrophila was 909 bp. The swimming motility of clinical isolates of both species was lower than the environmental isolates; however, the biofilm forming ability of the clinical isolates was high. Thus, the clinical isolates of A. veronii bv. sobria and A. hydrophila had different genetic and functional characteristics of flagellin than the environmental isolates. The characteristics of flagellin could serve as indicators to distinguish between clinical and environmental isolates of the both species. It may contribute to diagnosis of these diseases and the monitoring of clinical strain invasion into the natural environment.
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Affiliation(s)
- Kazufumi Miyagi
- Laboratory of Microbiology, School of Health Sciences, Faculty of Medicine, University of the Ryukyus, 207 Uehara, Nishihara-cho, Okinawa, 903-0215, Japan.
| | - Noriaki Shimoji
- Department of Clinical Laboratory, Urasoe General Hospital, 4-16-1 Iso, Urasoe-shi, Okinawa, 901-2132, Japan
| | - Haruna Oshiro
- Department of Clinical Laboratory, Urasoe General Hospital, 4-16-1 Iso, Urasoe-shi, Okinawa, 901-2132, Japan
| | - Itaru Hirai
- Laboratory of Microbiology, School of Health Sciences, Faculty of Medicine, University of the Ryukyus, 207 Uehara, Nishihara-cho, Okinawa, 903-0215, Japan
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Wang CZ, Gao X, Tu JY, Lv LC, Pu WX, He XT, Jiao YX, Deng YT, Liu JH. Multiple Copies of Mobile Tigecycline Resistance Efflux Pump Gene Cluster tmexC2D2.2-toprJ2 Identified in Chromosome of Aeromonas spp. Microbiol Spectr 2022; 10:e0346822. [PMID: 36354336 PMCID: PMC9769766 DOI: 10.1128/spectrum.03468-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/18/2022] [Indexed: 11/12/2022] Open
Abstract
The appearance and prevalence of novel plasmid-encoded tigecycline resistance efflux pump gene clusters tmexC1D1-toprJ1 and tmexC2D2-toprJ2 in Enterobacteriaceae have raised a threat to public health. Here, another tigecycline resistance gene cluster, tmexC2D2.2-toprJ2, was identified in two Aeromonas isolates recovered from fish meat and vegetables. Cloning confirmed the expression of tmexC2D2.2-toprJ2 mediated the resistance to tigecycline and decreased susceptibility to tetracyclines and cephalosporins in both Escherichia coli and Aeromonas. In an Aeromonas veronii strain, four copies of tmexC2D2.2-toprJ2 were located on the chromosome. Further analysis revealed that tmexC2D2.2-toprJ2 has been detected in the chromosomes of A. veronii, Aeromonas hydrophila, and Aeromonas caviae with one to four copies due to the insertion of a potential integrative transferable unit. The occurrence of multiple copies of chromosomal tmexC2D2.2-toprJ2 may act as a sink for this tigecycline resistance gene cluster, which requires continuous monitoring. IMPORTANCE Tigecycline is regarded as one of the few effective drugs against multidrug-resistant bacterial infection. However, mobile tigecycline resistance efflux pump gene clusters such as tmexC1D1-toprJ1 and its variants have been identified in both animal- and human-origin Enterobacteriaceae. In this study, we first found another efflux pump gene cluster, tmexC2D2.2-toprJ2, in the Aeromonas chromosome. This gene cluster could mediate tigecycline resistance and decrease susceptibility to tetracyclines and cephalosporins in the Aeromonas host strain. Meanwhile, tmexC2D2.2-toprJ2 was detected with multiple copies in Aeromonas spp. This multidrug resistance efflux pump gene cluster with multiple copy numbers might stably exist in Aeromonas and serve as a reservoir for tmexCD2-toprJ2, facilitating its persistent presence and spread.
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Affiliation(s)
- Cheng-Zhen Wang
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Xun Gao
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jie-Ying Tu
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Lu-Chao Lv
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Wen-Xian Pu
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Xiao-Tong He
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yan-Xiang Jiao
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yu-Ting Deng
- Key Laboratory of Fishery Drug Development, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
- Key Laboratory of Aquatic Animal Immune Technology, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Jian-Hua Liu
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- National Risk Assessment Laboratory for Antimicrobial Resistance of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
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Ali SE, Mahana O, Mohan CV, Delamare-Deboutteville J, Elgendy MY. Genetic characterization and antimicrobial profiling of bacterial isolates collected from Nile tilapia (Oreochromis niloticus) affected by summer mortality syndrome. J Fish Dis 2022; 45:1857-1871. [PMID: 36057979 DOI: 10.1111/jfd.13710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 08/07/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
In recent years, Egyptian tilapia aquaculture has experienced mortality episodes during the summer months. The causative agents responsible for such mortalities have not been clearly identified. A total of 400 fish specimens were collected from affected tilapia farms within five Egyptian governorates. A total of 344 bacterial isolates were identified from the examined fish specimens. Bacterial isolates were grouped into seven genera based on API 20E results. The most prevalent pathogens were Aeromonas spp. (42%), Vibrio spp. (21%), and Streptococcus agalactiae (14.5%). Other emerging infections like, Plesiomonas shigelloides (10%), Staphyloccocus spp. (8%), Pseudomonas oryzihabitans, and Acinetobacter lwoffii (2.3%) were also detected. Sequence analysis of the 16S ribosomal RNA bacterial gene of some isolates, confirmed the phenotypic identification results. The analysis of antibiotic resistance genes revealed the presence of aac(6')-Ib-cr (35.7%), blaCTX gene (23.8%), qnrS (19%), ampC (16.7%), floR (14.3%), sul1, tetA, and van.C1 (2.4%) genes in some isolates. The antimicrobia resistance gene, qac was reported in 46% of screened isolates. Bacterial strains showed variable virulence genes profiles. Aeromonas spp. harboured (act, gcat, aerA, lip, fla, and ser) genes. All Vibrio spp. possessed the hlyA gene, while cylE, hylB, and lmb genes, were detected in S. agalactiae strains. Our findings point to the possible role of the identified bacterial pathogens in tilapia summer mortality syndrome and highlight the risk of the irresponsible use of antibiotics on antimicrobial resistance in aquaculture.
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Affiliation(s)
- Shimaa E Ali
- WorldFish, Abbassa, Sharqia, Egypt
- Department of Hydrobiology, Veterinary Research Institute, National Research Centre, Giza, Egypt
| | - Osama Mahana
- Animal Health Research Institute, Agricultural Research Center, Giza, Egypt
| | | | | | - Mamdouh Y Elgendy
- Department of Hydrobiology, Veterinary Research Institute, National Research Centre, Giza, Egypt
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Modi A, Singh S, Patki J, Padmadas N. Screening and identification of azo dye decolorizers from mangrove rhizospheric soil. Environ Sci Pollut Res Int 2022; 29:83496-83511. [PMID: 35768712 DOI: 10.1007/s11356-022-21610-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
Removal of synthetic textile dyes poses a challenge to the textile industry and a threat to the environment's flora and fauna. These dyes are recalcitrant and not very amenable to physical and chemical techniques of degradation. Hence, several studies on alternative bioremediation methods involving plants, plant roots, single microbes, or a consortium of microbes for the decolorization of dyes have been carried out. In the present study, potent bacteria for dye decolorization were isolated from rhizospheric soil of mangrove plants collected from Kamothe, Navi Mumbai, India. Of the 20 isolates obtained after enrichment, seven isolates were used for further screening of efficient decolorization ability in minimal basal media containing 10% glucose, 2.5% trace metal solution, and 0.1% of Methyl Orange (MO) dye concentration. Physiological parameters to optimize the decolorization of dye at optimum pH, temperature, and incubation time were studied for all the seven isolates. UV-vis and Fourier transform infrared spectroscopy were used to investigate dye decolorization. The seven isolates were characterized morphologically, biochemically, and molecular identification of these bacterial isolates was performed by 16S rRNA sequence analysis. The isolates were identified as Bacillus paramycoides, Pseudomonas taiwanensis, Citrobacter murliniae, Acinetobacter pitti, Exiguobacterium acetylicum, Psychrobacter celer, and Aeromonas taiwanensis. Out of these, Aeromonas taiwanensis has shown exceptional capacity by ~ 100% decolorization of azo dye in minimum time.
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Affiliation(s)
- Akhilesh Modi
- Gujarat Biotechnology Research Centre, Sector 11, Gandhinagar, 382011, Gujarat, India
- School of Biotechnology and Bioinformatics, D.Y Patil Deemed to Be University, Navi Mumbai, 400706, India
| | - Sunita Singh
- School of Biotechnology and Bioinformatics, D.Y Patil Deemed to Be University, Navi Mumbai, 400706, India.
| | - Jyoti Patki
- School of Biotechnology and Bioinformatics, D.Y Patil Deemed to Be University, Navi Mumbai, 400706, India
| | - Naveen Padmadas
- School of Biotechnology and Bioinformatics, D.Y Patil Deemed to Be University, Navi Mumbai, 400706, India
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Jia J, Zhu Z, Xue X, Li X, Wang Z. Selective pressure governs the composition, antibiotic, and heavy metal resistance profiles of Aeromonas spp. isolated from Ba River in Northwest China. Environ Sci Pollut Res Int 2022; 29:75841-75850. [PMID: 35657546 DOI: 10.1007/s11356-022-20678-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 05/03/2022] [Indexed: 06/15/2023]
Abstract
The selective pressure of the living surroundings is a key factor in the development of resistance profiles in pathogenic bacteria such as Aeromonas spp. In this study, Aeromonas species were isolated from the Ba River, and their composition, resistance profiles to antibiotics, and heavy metals (HMs) were investigated. The discovery revealed that selective pressure altered the diversity of Aeromonas spp., with Aeromonas veronii being more adaptable to contaminated waters. Long-term exposure to antibiotics or HMs exerts persistent selective pressure on Aeromonas species, leading to the increase in multiple antibiotic resistance (MAR) index and multidrug-resistant (MDR) strains. Furthermore, HMs could drive the co-selection of antibiotic resistance via co-resistance or cross-resistance. blaTEM, blaSHV, blaCTX-M, sul1, czcA, mexA, and mexF were detected at high frequencies in Aeromonas species. Among these resistance phenotypes conferred genes, blaTEM may be intrinsic in the genome of Aeromonas spp., while mexA and mexF may have been acquired from surrounding environments owing to selective pressure. Resistance genes evolved as a consequence of selective pressure and have been shown to be positively correlated with their prevalence. Our study suggests that the selective pressure of living surroundings significantly contributes to the composition and resistance profiles of Aeromonas spp. in the riverine ecosystem.
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Affiliation(s)
- Jia Jia
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Zeliang Zhu
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Xue Xue
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Xuening Li
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Zaizhao Wang
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China.
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Zhao T, Yang B, Li H, Qian A, Cong W, Sun W, Kang Y. Essential role of ascO for virulence of Aeromonas veronii and inducing apoptosis. J Fish Dis 2022; 45:1477-1489. [PMID: 35749548 DOI: 10.1111/jfd.13676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/06/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Aeromonas veronii is a significant pathogen that is capable of infecting humans, animals, and aquatic animals. The type III secretion system (T3SS) is intimately associated with bacterial pathogenicity. The ascO gene is an important core component of T3SS in A. veronii, but its function is still unclear. The ascO gene of A. veronii TH0426 was deleted by using the pRE112 suicide plasmid to study its function. The study results showed that the ability of ∆ascO to adhere and invade EPC cells was significantly reduced by 1.28 times. The toxicity of the mutant strain ΔascO to EPC cells was consistently significantly lower than wild-type strain TH0426 at 1, 2, and 4 h. The LD50 values of ∆ascO against zebrafish and Carassius auratus (C. auratus) were 53 and 15 times that of the wild-type strain. In addition, the bacterial load of the mutant strain ΔascO in blood, heart, liver, and spleen was lower than wild-type strain TH0426. The Hoechst staining showed that the apoptotic degree of EPC cells induced by the mutant strain ΔascO was lower than that of the wild-type strain TH0426. Furthermore, real-time quantitative PCR (RT-qPCR) analysis revealed lower expression levels of pro-apoptotic genes (including cytC, cas3, cas9, TNF-α, and IL-1β) in C. auratus tissues infected with the mutant strain ΔascO compared to the wild-type strain TH0426. The results of in vivo and in vitro experiments have shown that ascO gene mutation can reduce the adhesion and toxicity of A. veronii to EPC and reduce the level of apoptosis induced by A. veronii. As a result, these insights will help further elucidate the function of the ascO gene and thus contribute to understanding the pathogenesis of A. veronii.
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Affiliation(s)
- Tong Zhao
- College of Veterinary Medicine/College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Marine College, Shandong University, Weihai, China
| | - Bintong Yang
- Marine College, Shandong University, Weihai, China
| | - Hongjin Li
- College of Veterinary Medicine/College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Marine College, Shandong University, Weihai, China
| | - Aidong Qian
- College of Veterinary Medicine/College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Wei Cong
- Marine College, Shandong University, Weihai, China
| | - Wuwen Sun
- College of Veterinary Medicine/College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Yuanhuan Kang
- College of Veterinary Medicine/College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Marine College, Shandong University, Weihai, China
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Qu FT, Wang WQ, Liu Q, Zhou HJ, Hu JR, Du XL, Wang Y, Xue JQ, Cui ZG, Xie GL, Meng S. Genetic Diversity, Antibiotic Resistance, and Pathogenicity of Aeromonas Species from Food Products in Shanghai, China. Biomed Environ Sci 2022; 35:842-853. [PMID: 36189999 DOI: 10.3967/bes2022.108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 04/22/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVE Aeromonas has recently been recognized as an emerging human pathogen. Aeromonas-associated diarrhea is a phenomenon occurring worldwide. This study was designed to determine the prevalence, genetic diversity, antibiotic resistance, and pathogenicity of Aeromonas strains isolated from food products in Shanghai. METHODS Aeromonas isolates ( n = 79) collected from food samples were analyzed using concatenated gyrB- cpn60 sequencing. The antibiotic resistance of these isolates was determined using antimicrobial susceptibility testing. Pathogenicity was assessed using β-hemolytic, extracellular protease, virulence gene detection, C. elegans liquid toxicity (LT), and cytotoxicity assays. RESULTS Eight different species were identified among the 79 isolates. The most prevalent Aeromonas species were A. veronii [62 (78.5%)], A. caviae [6 (7.6%)], A. dhakensis [3 (3.8%)], and A. salmonicida [3 (3.8%)]. The Aeromonas isolates were divided into 73 sequence types (STs), of which 65 were novel. The isolates were hemolytic (45.6%) and protease-positive (81.0%). The most prevalent virulence genes were act (73.4%), fla (69.6%), aexT (36.7%), and ascV (30.4%). The results of C. elegans LT and cytotoxicity assays revealed that A. dhakensis and A. hydrophila were more virulent than A. veronii, A. caviae, and A. bivalvium. Antibiotic resistance genes [ tetE, blaTEM, tetA, qnrS, aac(6)-Ib, mcr -1, and mcr-3] were detected in the isolates. The multidrug-resistance rate of the Aeromonas isolates was 11.4%, and 93.7% of the Aeromonas isolates were resistant to cefazolin. CONCLUSION The taxonomy, antibiotic resistance, and pathogenicity of different Aeromonas species varied. The Aeromonas isolates A. dhakensis and A. hydrophila were highly pathogenic, indicating that food-derived Aeromonas isolates are potential risks for public health and food safety. The monitoring of food quality and safety will result in better prevention and treatment strategies to control diarrhea illnesses in China.
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Affiliation(s)
- Feng Tian Qu
- College of Life Science, Northeast Agricultural University, Ha'erbin 150000, Heilongjiang, China;State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Wen Qing Wang
- Shanghai Pudong New Area Center for Disease Control and Prevention, Shanghai 200136, China
| | - Qian Liu
- Laboratory Medicine, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Hai Jian Zhou
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Jin Rui Hu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Xiao Li Du
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Yue Wang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Jia Qi Xue
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China;Clinic Medical College, North China University of Science and Technology, Tangshan 063000, Hebei, China
| | - Zhi Gang Cui
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Gui Lin Xie
- College of Life Science, Northeast Agricultural University, Ha'erbin 150000, Heilongjiang, China
| | - Shuang Meng
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Abstract
Aeromonas are autochthonous bacteria of aquatic environments that are considered to be emerging pathogens to humans, producing diarrhea, bacteremia, and wound infections. Genetic identification shows that 95.4% of the strains associated with clinical cases correspond to the species Aeromonas caviae (37.26%), Aeromonas dhakensis (23.49%), Aeromonas veronii (21.54%), and Aeromonas hydrophila (13.07%). However, few studies have investigated the human immune response against some Aeromonas spp. such as A. hydrophila, Aeromonas salmonicida, and A. veronii. The present study aimed to increase the knowledge about the innate human immune response against six Aeromonas species, using, for the first time, an in vitro infection model with the monocytic human cell line THP-1, and to evaluate the intracellular survival, the cell damage, and the expression of 11 immune-related genes (TLR4, TNF-α, CCL2, CCL20, JUN, RELA, BAX, TP53, CASP3, NLRP3, and IL-1β). Transcriptional analysis showed an upregulated expression of a variety of the monocytic immune-related genes, with a variable response depending upon the Aeromonas species. The species that produced the highest cell damage, independently of the strain origin, coincidentally induced a higher expression of immune-related genes and corresponded to the more prevalent clinical species A. dhakensis, A. veronii, and A. caviae. Additionally, monocytic cells showed an overexpression of the apoptotic and pyroptotic genes involved in cell death after A. dhakensis, A. caviae, and Aeromonas media infection. However, the apoptosis route seemed to be the only way of producing cell damage and death in the case of the species Aeromonas piscicola and Aeromonas jandaei, while A. veronii apparently only used the pyroptosis route.
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Affiliation(s)
- Ana Fernández-Bravo
- Rovira i Virgili University, Department of Basic Medical Sciences, Mycology and Environmental Microbiology Unit, Reus, Spain
- Pere Virgili Health Research Institute (IISPV), Reus, Spain
- *Correspondence: Ana Fernández-Bravo,
| | - Maria José Figueras
- Rovira i Virgili University, Department of Basic Medical Sciences, Mycology and Environmental Microbiology Unit, Reus, Spain
- Pere Virgili Health Research Institute (IISPV), Reus, Spain
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Liu G, Li J, Jiang Z, Zhu X, Gao X, Jiang Q, Wang J, Wei W, Zhang X. Pathogenicity of Aeromonas veronii causing mass mortalities of Odontobutis potamophila and its induced host immune response. Fish Shellfish Immunol 2022; 125:180-189. [PMID: 35561950 DOI: 10.1016/j.fsi.2022.05.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/03/2022] [Accepted: 05/08/2022] [Indexed: 06/15/2023]
Abstract
Aeromonas veronii is a freshwater bacterium associated with many diseases in aquatic animals. However, few cases of A. veronii infection were reported in Odontobutis potamophila, which has been becoming a promising fish species in China in recent years. In this study, the dominant bacteria were isolated from diseased O. potamophila showing signs of hemorrhage on fins, ulceration on the dorsal and abdomen. The representative isolate Stl3-1was identified as A. veronii based on analysis of its morphological, physiological, and biochemical features, as well as 16S rRNA and gyrB gene sequences. The median lethal dosage (LD50) of the isolate Stl3-1 for O. potamophila was determined as 4.5 × 105 CFU/mL. Histopathological analysis revealed that the isolate Stl3-1caused considerable histological lesions in the fish, including tissue cell degeneration, necrosis, and inflammatory cell infiltrating. Detection of virulence-related genes showed that A. veronii Stl3-1 was positive for exu, ompA, lip, flaH, hlyA, aer, flgM, tapA, act, flgA, gcaT and flgN. Additionally, quantitive real-time PCR (qRT-PCR) was also undertaken to analyses the host defensive response in O. potamophila infected by A. veronii. The immune-related gene expressions in O. potamophila during experimental infection were monitored at different point of time, and the results showed that the expression levels of MHC II, Myd88, TLR, and SOD were significantly up-regulated in liver, gill, spleen, and head kidney. The results revealed that A. veronii was a pathogen causing mass mortalities of O. potamophila and will contribute to better understanding the host defensive response against A. veronii infection.
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Affiliation(s)
- Guoxing Liu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China; Research Center of Characteristic Fish, Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, 210017, China
| | - Jie Li
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Ziyan Jiang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Xinhai Zhu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Xiaojian Gao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Qun Jiang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Jun Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Wanhong Wei
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Xiaojun Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China.
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Salamandane A, Malfeito-Ferreira M, Brito L. A high level of antibiotic resistance in Klebsiella and Aeromonas isolates from street water sold in Mozambique, associated with the prevalence of extended-spectrum and AmpC ß-lactamases. J Environ Sci Health B 2022; 57:561-567. [PMID: 35603723 DOI: 10.1080/03601234.2022.2078627] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This study aims to evaluate the resistance profile and the prevalence of antibiotic resistance genes in 30 isolates of Klebsiella spp. and Aeromonas spp. recovered from water sold in the streets of Maputo. Susceptibility profiles to 15 antibiotics were performed according to Clinical Laboratory Standard Institute guidelines with antibiotic disks on Mueller-Hinton agar plates. Multiplex PCRs were performed targeting 10 ß-lactamase genes, five ESBL (blaTEM-variants, blaOXA-variants, BlaSHV-variants, MCTX-M Group 1 and Group 9 variants) and five AmpC (ACC variants, FOX variants, MOX variants, CIT variants and DHA variants). The results showed a high prevalence of Klebsiella resistance to ß-lactam antibiotics, such as amoxicillin/clavulanic acid (62.5%), amoxicillin (56.3%), ampicillin (50%), cefoxitin (43.8%), and cefotaxime (43.8%). Aeromonas showed resistance to cefoxitin and ampicillin (71.4%), amoxicillin/clavulanic acid (57.1%) and imipenem (42.9%). ESBL blaOXA-variants, blaSVH-variants, MCTX-M Group 1 variants, and MCTX-M Group 9 variants were the most prevalent b-lactam genes, followed by the b-lactams AmpC, ACC variants and FOX variants. It is extremely important to improve waterborne disease control strategies, especially in terms of public awareness of the potential health implications of multidrug-resistant strains of Klebsiella and Aeromonas, which are often neglected.
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Affiliation(s)
- Acácio Salamandane
- LEAF - Linking Landscape, Environment, Agriculture and Food Research Centre, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Lisboa, Portugal
- Faculdade de Ciências de Saúde, Universidade Lúrio, Nampula, Mozambique
| | - Manuel Malfeito-Ferreira
- LEAF - Linking Landscape, Environment, Agriculture and Food Research Centre, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Lisboa, Portugal
| | - Luísa Brito
- Faculdade de Ciências de Saúde, Universidade Lúrio, Nampula, Mozambique
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Kosikowska U, Stec J, Andrzejczuk S, Mendrycka M, Pietras-Ożga D, Stępień-Pyśniak D. Plasmid-Mediated Fluoroquinolone Resistance Genes in Quinolone-Susceptible Aeromonas spp. Phenotypes Isolated From Recreational Surface Freshwater Reservoir. Front Cell Infect Microbiol 2022; 12:885360. [PMID: 35646727 PMCID: PMC9132129 DOI: 10.3389/fcimb.2022.885360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 03/24/2022] [Indexed: 11/13/2022] Open
Abstract
Aeromonas spp. are recognized as opportunistic pathogens causing diseases. Infections in humans can result mainly in gastrointestinal and wound diseases with or without progression to septicemia. Although Aeromonas spp. are not known uropathogens and they rarely cause urinary tract infection, we hypothesize that the presence of these bacteria in the water and the contact during, e.g., recreational and bathing activity can create the conditions for the colonization of the human body and may result to diseases in various locations, including the urinary tract. Our study presents the occurrence of aeromonad fluoroquinolone-susceptible phenotypes with the presence of plasmid-mediated fluoroquinolone resistance (PMQR) genes in a natural freshwater reservoir occasionally used for recreational activities. Sixty-nine isolates collected during the bathing period were identified by mass spectrometry and screened for the presence of fluoroquinolone-resistant phenotypes and genotypes. Fluoroquinolone susceptibility was determined as minimal inhibitory concentration values. PMQR qnr genes were detected by PCR. Isolates comprising eight species, namely, mainly Aeromonas veronii (50.7% isolates) and Aeromonas media (24.6% isolates) and rarely Aeromonas eucrenophila, Aeromonas caviae, Aeromonas bestiarum, Aeromonas ichthiosmia, and Aeromonas hydrophila, were selected. All isolates were phenotypically susceptible either to ciprofloxacin or levofloxacin. Unexpectedly, at least one to three of the PMQR genes were detected in 42.0% of the fluoroquinolone-susceptible Aeromonas spp. phenotypes. Mainly the qnrS (34.8% isolates) and qnrA (14.5% isolates) determinants were detected. In conclusion, the freshwater reservoir occasionally used for bathing was tainted with aeromonads, with a high occurrence of opportunistic pathogens such as A. veronii and A. media. MALDI‐TOF MS is a powerful technique for aeromonad identification. Our data reveals the mismatch phenomenon between fluoroquinolone-susceptible aeromonad phenotypes and the presence of plasmid-mediated qnr resistance genes. It suggests that phenotypically susceptible bacteria might be a potential source for the storage and transmission of these genes. The exposure during, e.g., a recreational activity may create the potential risk for causing infections, both diagnostically and therapeutically difficult, after expressing the resistance genes and quinolone-resistant strain selection.
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Affiliation(s)
- Urszula Kosikowska
- Department of Pharmaceutical Microbiology, Medical University of Lublin, Lublin, Poland
- *Correspondence: Urszula Kosikowska,
| | - Joanna Stec
- Department of Pharmaceutical Microbiology, Medical University of Lublin, Lublin, Poland
| | - Sylwia Andrzejczuk
- Department of Pharmaceutical Microbiology, Medical University of Lublin, Lublin, Poland
| | - Mariola Mendrycka
- Faculty of Medical Sciences and Health Sciences, Kazimierz Pulaski University of Technology and Humanities in Radom, Radom, Poland
| | - Dorota Pietras-Ożga
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Lublin, Poland
| | - Dagmara Stępień-Pyśniak
- Department of Veterinary Prevention and Avian Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Lublin, Poland
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Bujak K, Decewicz P, Kitowicz M, Radlinska M. Characterization of Three Novel Virulent Aeromonas Phages Provides Insights into the Diversity of the Autographiviridae Family. Viruses 2022; 14:1016. [PMID: 35632757 PMCID: PMC9145550 DOI: 10.3390/v14051016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/29/2022] [Accepted: 05/05/2022] [Indexed: 11/17/2022] Open
Abstract
In this study, we isolated and characterized three novel virulent Autographiviridae bacteriophages, vB_AspA_Bolek, vB_AspA_Lolek, and vB_AspA_Tola, which infect different Aeromonas strains. These three host-pathogen pairs were derived from the same sampling location-the arsenic-containing microbial mats of the Zloty Stok gold mine. Functional analysis showed they are psychrotolerant (4-25 °C), albeit with a much wider temperature range of propagation for the hosts (≤37 °C). Comparative genomic analyses revealed a high nucleotide and amino acid sequence similarity of vB_AspA_Bolek and vB_AspA_Lolek, with significant differences exclusively in the C-terminal region of their tail fibers, which might explain their host range discrimination. The protein-based phage network, together with a phylogenetic analysis of the marker proteins, allowed us to assign vB_AspA_Bolek and vB_AspA_Lolek to the Beijerinckvirinae and vB_AspA_Tola to the Colwellvirinae subfamilies, but as three novel species, due to their low nucleotide sequence coverage and identity with other known phage genomes. Global comparative analysis showed that the studied phages are also markedly different from most of the 24 Aeromonas autographiviruses known so far. Finally, this study provides in-depth insight into the diversity of the Autographiviridae phages and reveals genomic similarities between selected groups of this family as well as between autographiviruses and their relatives of other Caudoviricetes families.
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Affiliation(s)
| | | | | | - Monika Radlinska
- Department of Environmental Microbiology and Biotechnology, Faculty of Biology, Institute of Microbiology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland; (K.B.); (P.D.); (M.K.)
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Cui G, Fu X, Bhat SA, Tian W, Lei X, Wei Y, Li F. Temperature impacts fate of antibiotic resistance genes during vermicomposting of domestic excess activated sludge. Environ Res 2022; 207:112654. [PMID: 34990606 DOI: 10.1016/j.envres.2021.112654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 11/29/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Effect of temperature on antibiotic resistance genes (ARGs) during vermicomposting of domestic excess sludge remains poorly understood. Vermicomposting experiment with excess sludge was conducted at three different temperatures (15 °C, 20 °C, and 25 °C) to investigate the fate of ARGs, bacterial community and their relationship in the process. The vermicomposting at 25 °C did not significantly attenuate the targeted ARGs relative to that at 15 °C and 20 °C. The dynamics of qnrA, qnrS, and tetM genes during vermicomposting at 15 °C and 20 °C followed the first-order kinetic model. Temperature remarkably impacted bacterial diversity of the final products with the lowest Shannon index at 25 °C. The presence of the genus (Aeromonas and Chitinophagaceae) at 25 °C may contribute to the rebound of the genes (qnrA, qnrS and tetM). The study indicates that 20 °C is a suitable vermicomposting temperature to simultaneously reach the highest removal efficiency of the ARGs and the good biostability of the final product.
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Affiliation(s)
- Guangyu Cui
- State Key Laboratory of Pollution Control & Resource Reuse, Tongji University, Shanghai, 200092, China; River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
| | - Xiaoyong Fu
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Sartaj Ahmad Bhat
- River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan; Waste Reprocessing Division, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur, Maharashtra 440020, India
| | - Weiping Tian
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Xuyang Lei
- Department of Resource and Environmental Engineering, Hebei Vocational University of Technology and Engineering, Xingtai, 054000, China
| | - Yongfen Wei
- River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Fusheng Li
- River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
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Zhang L, Jin S, Feng C, Song H, Raza SHA, Yu H, Zhang L, Chi T, Qi Y, Zhang D, Qian A, Liu N, Shan X. Aeromonas veronii virulence and adhesion attenuation mediated by the gene aodp. J Fish Dis 2022; 45:231-247. [PMID: 34875118 DOI: 10.1111/jfd.13544] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 05/13/2023]
Abstract
Aeromonas veronii (A. veronii) is an opportunistic pathogen of fish-human-livestock, which poses a threat to the development of aquaculture. Based on our previous studies on proteomics and genomics, we found out that the aodp gene may be related to the virulence of A. veronii TH0426. However, aodp gene encodes a hypothetical protein with an unknown function, and its role in A. veronii TH0426 is not clear. Here, we first constructed a mutant strain (△-aodp) to investigate the functional role of aodp in A. veronii TH0426. Compared with the wild strain A. veronii TH0426, the growth rate of strain △-aodp was slower and was resistant to neomycin and kanamycin, but sensitive to cephalexin. The swimming and swarming ability of △-aodp strain decreased, and the pathogenicity to mice decreased by 15.84-fold. Besides, the activity of caspase-3 in EPCs infected with △-aodp strain was 1.49-fold lower than that of the wild strain. We examined 20 factors closely related to A. veronii virulence, among them 17 genes were down-regulated as a result of aodp deficiency. This study laid a foundation for further studies on the pathogenesis of A. veronii.
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Affiliation(s)
- Lei Zhang
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Shengnan Jin
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Chao Feng
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Haichao Song
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | | | - Huabo Yu
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Liang Zhang
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Teng Chi
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Yanling Qi
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Dongxing Zhang
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Aidong Qian
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Ning Liu
- Department of Veterinary Medicine, China Agriculture University, Beijing, China
| | - Xiaofeng Shan
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
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Tan Z, Yang X, Chen L, Liu Y, Xu HJ, Li Y, Gong B. Biodegradation mechanism of chloramphenicol by Aeromonas media SZW3 and genome analysis. Bioresour Technol 2022; 344:126280. [PMID: 34752881 DOI: 10.1016/j.biortech.2021.126280] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 10/29/2021] [Accepted: 10/30/2021] [Indexed: 06/13/2023]
Abstract
The overuse of chloramphenicol (CAP) due to its low price is detrimental to ecological safety and human health. An earthworm gut content dwelling bacterium, Aeromonas media SZW3, was isolated with capability of CAP biodegradation, and the CAP degradation efficiency reached 55.86% at day 1 and 67.28% at day 6. CAP biodegradation kinetics and characteristic of strain SZW3 determined the factors that affect CAP biodegradation. Thirteen possible biodegradation products were identified, including three novel biodegradation products (CP1, CP2 and CP3), and three potential biodegradation pathway were proposed. Biodegradation reactions include amide bond hydrolysis, nitro group reduction, acetylation, aminoacetylation, dechlorination and oxidation. Genome analysis suggested that the coding gene of RarD (CAP resistance permease), CAP O-acetyltransferase, nitroreductase and haloalkane dehalogenase may be responsible for CAP biodegradation. The proposed complete biodegradation pathway and genome analysis by strain SZW3 provide us new insight of the transformation route and fate of CAP in the environment.
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Affiliation(s)
- Zewen Tan
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Xiuyue Yang
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Lian Chen
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Yiling Liu
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Hui-Juan Xu
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Yongtao Li
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Beini Gong
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China.
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Hosseini N, Paquet VE, Chehreghani M, Moineau S, Charette SJ. Phage Cocktail Development against Aeromonas salmonicida subsp. salmonicida Strains Is Compromised by a Prophage. Viruses 2021; 13:2241. [PMID: 34835047 PMCID: PMC8621227 DOI: 10.3390/v13112241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 10/22/2021] [Accepted: 11/04/2021] [Indexed: 11/17/2022] Open
Abstract
Aquaculture is a rapidly growing food production sector. Fish farmers are experiencing increasing problems with antibiotic resistance when fighting against pathogenic bacteria such as Aeromonas salmonicida subsp. salmonicida, the causative agent of furunculosis. Phage therapy may provide an alternative, but effective use must be determined. Here, we studied the inhibition of A. salmonicida subsp. salmonicida strains by five phages (HER98 [44RR2.8t.2], HER110 [65.2], SW69-9, L9-6 and Riv-10) used individually or as combinations of two to five phages. A particular combination of four phages (HER98 [44RR2.8t.2], SW69-9, Riv-10, and HER110 [65.2]) was found to be the most effective when used at an initial multiplicity of infection (MOI) of 1 against the A. salmonicida subsp. salmonicida strain 01-B526. The same phage cocktail is effective against other strains except those bearing a prophage (named Prophage 3), which is present in 2/3 of the strains from the province of Quebec. To confirm the impact of this prophage, we tested the effectiveness of the same cocktail on strains that were either cured or lysogenized with Prophage 3. While the parental strains were sensitive to the phage cocktail, the lysogenized ones were much less sensitive. These data indicate that the prophage content of A. salmonicida subsp. salmonicida can affect the efficacy of a cocktail of virulent phages for phage therapy purposes.
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Affiliation(s)
- Nava Hosseini
- Institut de Biologie Intégrative et des Systèmes (IBIS), Pavillon Charles-Eugène-Marchand, Université Laval, Quebec City, QC G1V 0A6, Canada; (N.H.); (V.E.P.); (S.M.)
- Département de Biochimie, de Microbiologie et de Bio-Informatique, Faculté des Sciences et de Génie, Université Laval, Quebec City, QC G1V 0A6, Canada
- Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Quebec City, QC G1V 4G5, Canada
| | - Valérie E. Paquet
- Institut de Biologie Intégrative et des Systèmes (IBIS), Pavillon Charles-Eugène-Marchand, Université Laval, Quebec City, QC G1V 0A6, Canada; (N.H.); (V.E.P.); (S.M.)
- Département de Biochimie, de Microbiologie et de Bio-Informatique, Faculté des Sciences et de Génie, Université Laval, Quebec City, QC G1V 0A6, Canada
- Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Quebec City, QC G1V 4G5, Canada
| | - Mahdi Chehreghani
- Department of Mechanical Engineering, McGill University, Montreal, QC H3A 0C3, Canada;
| | - Sylvain Moineau
- Institut de Biologie Intégrative et des Systèmes (IBIS), Pavillon Charles-Eugène-Marchand, Université Laval, Quebec City, QC G1V 0A6, Canada; (N.H.); (V.E.P.); (S.M.)
- Département de Biochimie, de Microbiologie et de Bio-Informatique, Faculté des Sciences et de Génie, Université Laval, Quebec City, QC G1V 0A6, Canada
- Groupe de Recherche en Écologie Buccale (GREB), Faculté de Médecine Dentaire, Université Laval, Quebec City, QC G1V 0A6, Canada
- Félix d’Hérelle Reference Center for Bacterial Viruses, Faculté de Médecine Dentaire, Université Laval, Quebec City, QC G1V 0A6, Canada
| | - Steve J. Charette
- Institut de Biologie Intégrative et des Systèmes (IBIS), Pavillon Charles-Eugène-Marchand, Université Laval, Quebec City, QC G1V 0A6, Canada; (N.H.); (V.E.P.); (S.M.)
- Département de Biochimie, de Microbiologie et de Bio-Informatique, Faculté des Sciences et de Génie, Université Laval, Quebec City, QC G1V 0A6, Canada
- Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Quebec City, QC G1V 4G5, Canada
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Chen YW, Su SL, Li CW, Tsai CS, Lo CL, Syue LS, Li MC, Lee CC, Lee NY, Ko WC, Chen PL. Pancreaticobiliary Cancers and Aeromonas Isolates Carrying Type Ⅲ Secretion System Genes ascF-ascG Are Associated With Increased Mortality: An Analysis of 164 Aeromonas Infection Episodes in Southern Taiwan. Front Cell Infect Microbiol 2021; 11:749269. [PMID: 34737976 PMCID: PMC8562565 DOI: 10.3389/fcimb.2021.749269] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 10/05/2021] [Indexed: 11/13/2022] Open
Abstract
This prospective study aimed to investigate the clinical and microbiological characteristics of different Aeromonas species. Clinical isolates of Aeromonas species between 2016 to 2018 were collected in a university hospital in southern Taiwan. The species was determined by rpoD or gyrB sequencing. A total of 222 Aeromonas isolates from 160 patients in 164 episodes were identified. The crude in-hospital mortality was 17.2%. The most frequently isolated species was Aeromonas veronii (30.6%), followed by A. caviae (24.8%), A. hydrophila (23%), and A. dhakensis (16.7%). The major clinical manifestations were primary bacteremia (31.1%), skin and soft tissue infection (22.6%), and biliary tract infection (18.3%). The most common underlying diseases were malignancy (45.1%), diabetes mellitus (27.4%), and liver cirrhosis or chronic hepatitis (26.2%). A. hydrophila and A. dhakensis predominated in the skin and soft tissue infection (p<0.0001), whereas A. vernoii and A. caviae prevailed in primary bacteremia and biliary tract infections (p=0.012). Pneumonia, malignancy, and ascF-ascG genotype were independent factors associated with mortality. Ertapenem susceptibility was decreased in A. sobria (42.9%), A. veronii (66.7%), A. dhakensis (73%), and A. hydrophila (84.3%). Cefotaxime resistance was found in 30.9% of A. caviae and 18.9% of A. dhakensis isolates, much more prevalent than the other species. The metallo-β-lactamase blaCphA was almost invariably present in A. dhakensis, A. hydrophila, and A. veronii (100%, 100% and 89.9%, respectively). Amp-C β-lactamases such as blaMOX and blaAQU-1 were identified in all A. caviae and 91.9% of A. dhakensis isolates. Cefepime, fluoroquinolones and tigecycline showed good in vitro activity against aeromonads.
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Affiliation(s)
- Ying-Wen Chen
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Shu-Li Su
- Diagnostic Microbiology and Antimicrobial Resistance Laboratory, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chia-Wen Li
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Infection Control Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chin-Shiang Tsai
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Infection Control Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ching-Lung Lo
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Infection Control Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ling-Shan Syue
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Infection Control Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Min-Chi Li
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Infection Control Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ching-Chi Lee
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Clinical Medicine Research Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Nan-Yao Lee
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Infection Control Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Chien Ko
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Infection Control Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Po-Lin Chen
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Infection Control Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Chen JS, Hsu GJ, Hsu BM, Yang PY, Kuo YJ, Wang JL, Hussain B, Huang SW. Prevalence, virulence-gene profiles, antimicrobial resistance, and genetic diversity of human pathogenic Aeromonas spp. from shellfish and aquatic environments. Environ Pollut 2021; 287:117361. [PMID: 34004475 DOI: 10.1016/j.envpol.2021.117361] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 05/05/2021] [Accepted: 05/10/2021] [Indexed: 06/12/2023]
Abstract
Aeromonas are found in various habitats, particularly in aquatic environments. This study examined the presence of the most common human pathogenic Aeromonas species (Aeromonas caviae, A. hydrophila, and A. veronii) in surface water, sea water, and shellfish. The detection rates in fishing harbour seawater, shellfish farming seawater, and a river basin were 33.3%, 26.4%, and 29.4%, respectively, and high prevalence was observed in summer. The detection rates in shellfish procured from a fish market and shellfish farm were 34.9% and 13.3%, respectively. The most abundant species of human pathogenic Aeromonas detected via water sampling was A. caviae, whereas that obtained via shellfish sampling was A. veronii. The prevalence of human pathogenic Aeromonas in river water was lower in fishing harbours and in the estuary shellfish farming area. Here, 25 isolates of human pathogenic Aeromonas species were isolated from 257 samples and divided among 16 virulence profiles. The high virulence gene-carrying isolates (more than six genes) belonged to A. hydrophila. The shellfish-sourced isolates had the highest detection rates of act, aerA, and fla genes than of other virulence genes, and vice versa for seawater-sourced isolates. The Aeromonas isolates showed high levels of resistance to ampicillin-sulbactam; however, none were resistant to cefepime, ciprofloxacin, or gentamicin. The incidence of multiple drug resistance (MDR) in Aeromonas isolates was 20%. In this study, phylogenetic analysis with 16S rRNA sequencing, biochemical tests and enterobacterial repetitive intergenic consensus-polymerase chain reaction fingerprinting facilitated the distinct categorisation of three species of human pathogenic Aeromonas isolates. In addition, A. veronii isolates from the same geographical area were also concentrated in the same cluster. This study provides information on the risk of infection by Aeromonas with MDR and multiple virulence genes isolated from shellfish and aquatic environments.
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Affiliation(s)
- Jung-Sheng Chen
- Department of Earth and Environmental Sciences, National Chung Cheng University, Chiayi County, Taiwan; Department of Medical Research, E-Da Hospital, Kaohsiung, Taiwan
| | - Gwo-Jong Hsu
- Division of Infectious Diseases, Ditmanson Medical Foundation, Chia-Yi Christian Hospital, Chiayi City, Taiwan
| | - Bing-Mu Hsu
- Department of Earth and Environmental Sciences, National Chung Cheng University, Chiayi County, Taiwan; Center for Innovative on Aging Society, National Chung Cheng University, Chiayi County, Taiwan.
| | - Pei-Yu Yang
- Department of Laboratory, Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Yi-Jie Kuo
- Department of Orthopedic Surgery, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Orthopedic Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jiun-Ling Wang
- Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Bashir Hussain
- Department of Earth and Environmental Sciences, National Chung Cheng University, Chiayi County, Taiwan; Department of Biomedical Sciences, National Chung Cheng University, Chiayi County, Taiwan
| | - Shih-Wei Huang
- Center for Environmental Toxin and Emerging Contaminant Research, Cheng Shiu University, Kaohsiung, Taiwan; Super Micro Research and Technology Center, Cheng Shiu University, Kaohsiung, Taiwan
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Solaiman S, Micallef SA. Aeromonas spp. diversity in U.S. mid-Atlantic surface and reclaimed water, seasonal dynamics, virulence gene patterns and attachment to lettuce. Sci Total Environ 2021; 779:146472. [PMID: 34030273 DOI: 10.1016/j.scitotenv.2021.146472] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/14/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
Aeromonas, a ubiquitous taxon in water environments, is emerging as a foodborne pathogen of concern that remains understudied and under-reported. We evaluated the distribution of 331 Aeromonas spp. isolates collected from irrigation water over one year and characterised their virulence profile, attachment and ability to persist on lettuce. Water sources included non-tidal and tidal river, farm pond and reclaimed water. Twenty Aeromonas species were identified; A. veronii, A. hydrophila and A. jandaei predominated in all water types and seasons, comprising ~63% of isolates. Species distribution was most affected by water type. The highest and lowest diversity were detected in river and pond water, respectively. A. hydrophila and A. veronii ranked highest in frequency in fresh river and reclaimed water, while A. jandaei ranked first in pond water. Only two isolates carried all five virulence genes tested, while 46% of A. hydrophila (n = 50), 54% of A. veronii (n = 61) and 50% of A. jandaei (n = 32) isolates harboured multiple enterotoxin genes. Detection of alt and ast genes was more likely in summer collections, while ast detection was less likely in tidal brackish river and pond water isolates. Season was a factor in attachment to polystyrene, being strongest in spring isolates. The gene flaA was associated with strong attachment and was more likely to be detected in non-tidal fresh river isolates. A. hydrophila and A. jandaei isolates persisted on lettuce leaves for 24 h, but populations dwindled over 120 h, while loosely and strongly attached cells of A. veronii isolates persisted for 120 h. This study provides comprehensive data on Aeromonas species distribution and environmental traits. The associations revealed among diversity, water type, season, virulence factors and phyllosphere attachment capacity can inform agricultural water standards in novel ways. Moreover, understanding Aeromonas-plant interactions is an important step in advancing food safety of fruit and vegetables.
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Affiliation(s)
- Sultana Solaiman
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD 20742, USA.
| | - Shirley A Micallef
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD 20742, USA; Centre for Food Safety and Security Systems, University of Maryland, College Park, MD 20742, USA.
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Shi Y, Zhang Y, Wu X, Zhang H, Yang M, Tian Z. Potential dissemination mechanism of the tetC gene in Aeromonas media from the aerobic biofilm reactor under oxytetracycline stresses. J Environ Sci (China) 2021; 105:90-99. [PMID: 34130843 DOI: 10.1016/j.jes.2020.12.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 12/31/2020] [Indexed: 06/12/2023]
Abstract
The tetC gene has been found to be one of the most widely distributed tetracycline resistance (tet) genes in various environmental niches, but the detailed dissemination mechanisms are still largely unknown. In the present study, 11 tetC-containing Aeromonas media strains were isolated from an aerobic biofilm reactor under oxytetracycline stresses, and the genome of one strain was sequenced using the PacBio RSII sequencing approach to reveal the genetic environment of tetC. The tetC gene was carried by an IS26 composite transposon, named Tn6434. The tetC-carrying Tn6434 structure was detected in all of the A. media strains either in a novel plasmid pAeme2 (n=9) or other DNA molecules (n=2) by PCR screening. The NCBI database searching result shows that this structure was also present in the plasmids or chromosomes of other 13 genera, indicating the transferability of Tn6434. Inverse PCR and sequencing confirmed that Tn6434 can form a circular intermediate and is able to incorporate into a preexisting IS26 element, suggesting that Tn6434 might be responsible for the dissemination of tetC between different DNA molecules. This study will be helpful in uncovering the spread mechanism of tet genes in water environments.
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Affiliation(s)
- Yanhong Shi
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yu Zhang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Xiangyang Wu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Hong Zhang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Min Yang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Zhe Tian
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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Meng S, Du XL, Wang YL, Qu FT, Xie GL, Zhou HJ, Hu JR, Qin Z, Wang Y, Kan B, Cui ZG. Comparative Study of the Genetic Diversity, Antimicrobial Resistance, and Pathogenicity of Aeromonas Isolates from Clinical Patients and Healthy Individuals. Biomed Environ Sci 2021; 34:454-464. [PMID: 34284853 DOI: 10.3967/bes2021.062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 04/07/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE This study was performed to compare the genetic diversity, virulence, and antimicrobial resistance of Aeromonas strains isolated from patients and healthy individuals. METHODS A total of 38 clinical strains and 19 strains from healthy individuals were isolated from the samples collected in Ma'anshan City, Anhui Province. Their taxonomy was investigated using concatenated gyrB- cpn60 sequences, and their resistance to 12 antibiotics was evaluated. The pathogenicity of these strains was examined through beta-hemolysis, protease activity, and virulence gene assays. RESULTS The 57 Aeromonas strains were divided into 55 sequence types. Of these types, 21 were novel, suggesting that their genetic diversity was high. These Aeromonas isolates could be divided into 7 species, and the positive rates of beta-hemolysis and protease activity were 49.1% and 73.7%, respectively. The detection rate of clinical patients in terms of beta-hemolysis and protease activity was higher than that of healthy individuals. Among the four most common Aeromonas strains, A. dhakensis had the highest detection rate of virulence genes. The multidrug resistance rate of the clinical isolates was much higher than that of the strains isolated from healthy individuals. CONCLUSIONS The taxonomy, virulence properties, and antibiotic resistance of Aeromonas isolates from patients differ from those of the isolates from healthy individuals.
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Affiliation(s)
- Shuang Meng
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Xiao Li Du
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Yong Lu Wang
- Ma'anshan Center for Disease Control and Prevention, Ma'anshan 243000, Anhui, China
| | - Feng Tian Qu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China;College of Life Science, Northeast Agricultural University, Ha'erbin 150000, Heilongjiang, China
| | - Gui Lin Xie
- College of Life Science, Northeast Agricultural University, Ha'erbin 150000, Heilongjiang, China
| | - Hai Jian Zhou
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Jin Rui Hu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Zheng Qin
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China;School of Public Health, Jiamusi University, Jiamusi 154000, Heilongjiang, China
| | - Yue Wang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Biao Kan
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Zhi Gang Cui
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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