Genetic Lineages and Antimicrobial Resistance in Pseudomonas spp. Isolates Recovered from Food Samples

Foodborne Pathogens and Disease
Vanesa EstepaYolanda Sáenz

Abstract

Raw food is a reservoir of Pseudomonas isolates that could be disseminated to consumers. The presence of Pseudomonas spp. was studied in food samples, and the phenotypic and genotypic characterizations of the recovered isolates were analyzed. Two samples of meat (3%, turkey and beef) and 13 of vegetables (22%, 7 green peppers and 6 tomatoes) contained Pseudomonas spp. A total of 20 isolates were identified, and were classified as follows (number of isolates): P. aeruginosa (5), P. putida (5), P. nitroreducens (4), P. fulva (2), P. mosselli (1), P. mendocina (1), P. monteilii (1), and Pseudomonas sp. (1). These 20 Pseudomonas isolates were clonally different by pulsed-field-gel-electrophoresis, and were resistant to the following antibiotics: ticarcillin (85%), aztreonam (30%), cefepime (10%), imipenem (10%), and meropenem (5%), but were susceptible to ceftazidime, piperacillin, piperacillin-tazobactam, doripenem, gentamicin, tobramycin, amikacin, ciprofloxacin, norfloxacin, and colistin. Only one strain (Ps158) presented a class 1 integron lacking the 3' conserved segment. The five P. aeruginosa strains were typed by multilocus sequence typing in five different sequence-types (ST17, ST270, ST800, ST1455, and ST1456), and differ...Continue Reading

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Citations

Feb 13, 2016·Enfermedades infecciosas y microbiología clínica·Vanesa EstepaYolanda Sáenz
Mar 5, 2016·Journal of Food Protection·Brigitte N van DykLise Korsten
Jul 7, 2018·European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology·Alba BellésCristina Seral
Nov 18, 2018·Foodborne Pathogens and Disease·Christina Susanne HölzelKarin Schwaiger
Jun 14, 2021·Food Microbiology·M MarmionA G M Scannell

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Datasets Mentioned

BETA
CABM01000056
KC502912

Methods Mentioned

BETA
electrophoresis
PCR
PCRs

Software Mentioned

BioNumerics

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