Genotyping and antimicrobial susceptibility of Aeromonas veronii isolated from aquatic animals in Sichuan, China

As one of the motile species of Aeromonas, Aeromonas veronii is widely distributed in aquatic ecosystems and has been determined as an important pathogen for aquatic in addition to terrestrial animals and humans. In this study, we collected 34 A. veronii isolates from aquatic animals in Sichuan, China. Six housekeeping genes (gyrB, groL, gltA, metG, ppsA and recA) were used for multilocus sequence typing. The results showed that the isolates had high diversity, of which 21 subtypes could be divided into two groups. The group B consisted of 15 new sequence types (ST861-875), and the group A was more closely related to strains from water. Besides, the antibiotic susceptibility of each isolate was determined using the disc diffusion method. Discs of 17 antimicrobial agents were used, including penicillin, cefaclor, cefotaxime, meropenem, amoxicillin, kanamycin, gentamycin, amikacin, neomycin, ciprofloxacin, enrofloxacin, tetracycline, doxycycline, florfenicol, cotrimoxazole, rifampicin, and azithromycin. Most isolates showed resistance to 17 antibiotics such as penicillin, enrofloxacin, and doxycycline. Moreover, high-throughput qPCR was used to detect ARGs of the isolates. A total of 62 ARGs were detected positively based on 95 ARGs detection, in which class aminoglycosides, beta-lactams, and multiple drugs were the most prevalent. Our study indicated that different genotypes showed different distribution of ARPs and ARGs. To our knowledge, this is the first report of molecular subtyping and antibiotic resistance profiles in A. veronii from aquatic animals in Sichuan, these data provide a valuable referee for the prevention and control of corresponding diseases.

Abstract sourced from PubMed (NCBI) for the cited record. See the original publication for the authoritative version.

Peer-reviewed research on antimicrobial resistance relevant to medicinal leech therapy and associated bacterial flora. Indexed in PubMed and verified against the NCBI record.

Explore cómo esta investigación se conecta con la práctica clínica

More peer-reviewed studies in Resistencia antimicrobiana.

• Novel Leech Antimicrobial Peptides — Hirunipins — Kumar et al. (2025)
• AIF-1 and RNASET2 Play Complementary Roles in the Innate Immune Response of Medicinal Leech — Baranzini N et al. (2019)
• Aeromonas septicemia after medicinal leech use following replantation of severed digits — Levine SM et al. (2009)
• Low-Level Antimicrobials in the Medicinal Leech Select for Resistant Pathogens — Beka L et al. (2018)
• Role of Antimicrobial Peptides in Immunity of Parasitic Leeches — Kaygorodova IA (2023)
• The elastase-inhibitor eglin has no effect in an ovine model of endotoxemia — Redl H et al. (1988)
• Competitive inhibition of heparinase by persulfonated glycosaminoglycans: a tool to detect heparin contamination — Aich U et al. (2011)
• A novel Toll like receptor with two TIR domains (HcToll-2) is involved in regulation of antimicrobial peptide gene expression of Hyriopsis cumingii. — Ren Q et al. (2014)
• Molecular cloning and functional characterization of a short peptidoglycan recognition protein from triangle-shell pearl mussel (Hyriopsis cumingii). — Huang Y et al. (2018)
• Isolation, Characterization, and Evaluation of a Lytic Jumbo Phage Z90 Againstin American Eels (). — Zhang M et al. (2025)

Browse all ASH-analysed research →