Virulence factors and antimicrobial resistance in environmental strains of Vibrio alginolyticus
Int. microbiol
; 19(4): 191-198, dic. 2016. ilus, tab
Article
in English
| IBECS
| ID: ibc-162895
Responsible library:
ES1.1
Localization: BNCS
ABSTRACT
Vibrio alginolyticus has acquired increasing importance because this microorganism may be pathogenic to aquatic animals and humans. It has been reported that some V. alginolyticus strains carry virulence genes derived from pathogenic V. cholerae and V. parahaemolyticus strains. In this work V. alginolyticus was isolated from oyster samples acquired from a food-market in Mexico City. Thirty isolates were identified as V. alginolitycus. Strains showed β-haemolysis and proteolytic activity and produced a capsule. Strains displayed swimming and swarming motility and 93.3% of them produced siderophores. Several genes encoding virulence factors were detected using PCR amplification. These included proA, wza, vopD, vopB, hcp, vasH and vgrG genes, which were present in all strains. Other genes had a variable representation tdh (86.6%), lafA (96.6%), pvsA (62%) and pvuA (16%). The trh gene could not be amplified from any of the strains. The antimicrobial resistance profile revealed that more than 90% of the strains were resistant to beta-lactams antibiotics, 60% to cephalotin, 45% to amikacin, 16% to cephotaxime, and 10% to pefloxacin, while 100% were susceptible to ceftriaxone. The V. alginolyticus strains isolated from oysters showed multiple resistance to antibiotics and several virulence factors described in well-characterized pathogenic vibrios (AU)
RESUMEN
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Full text:
Available
Collection:
National databases
/
Spain
Database:
IBECS
Main subject:
Ostreidae
/
Vibrio Infections
/
Vibrio alginolyticus
/
Anti-Bacterial Agents
Type of study:
Prognostic study
Language:
English
Journal:
Int. microbiol
Year:
2016
Document type:
Article
Institution/Affiliation country:
Instituto Politécnico Nacional/Mexico
/
Universidad Autónoma Metropolitana-Iztapalapa/Mexico