NDLI: Prevalence of bacteriocin activities and bacteriocin-encoding genes in enterococcal clinical isolates in Iran.

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Year: 2012 Volume: 58 Issue: 3

Year: 2012 Volume: 58 Issue: 2

Year: 2012 Volume: 58 Issue: 1

Prevalence of bacteriocin activities and bacteriocin-encoding genes in enterococcal clinical isolates in Iran.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Hassan, Maryam Diep, Dzung B. Javadzadeh, Yousef Dastmalchi, Siavash Nes, Ingolf F. Sharifi, Yaeghob Yari, Saber Farajnia, Safar Lotfipour, Farzaneh
Spatial Coverage	Iran
Description	Country affiliation: Iran Author Affiliation: Hassan M ( Tabriz University of Medical Sciences, Tabriz, Iran.)
Abstract	The aim of the project was to isolate and characterize bacteriocin-producing enterococci, as well as determine the prevalence of enterocin structural genes in 187 enterococcal clinical isolates from the northwest of Iran. The isolates were screened for antibacterial activity against 15 different indicator strains. The proteinaceous nature of the antimicrobial substances was confirmed by sensitivity to proteinase K; their stability to heat treatment was tested at 60 °C and 100 °C for 20 and 10 min, respectively. The PCR method was applied to detect previously identified enterocin genes. Our results showed that 38 (20.3%) of the enterococcal isolates were considered to be potential bacteriocinogenic strains. Furthermore, genes encoding diverse bacteriocin are highly distributed among clinical enterococci, and the strains with multi-bacteriocin genes displayed high antimicrobial activity. Enterocin A, enterolysin A, and enterocin L50A/B were the most abundant structural genes detected in bacteriocinogenic strains. This work is the first survey on the prevalence of bacteriocin genes among clinical enterococci in Iran that has isolated a strain with high antimicrobial activity and sensitivity to clinically relevant antibiotics.
File Format	HTM / HTML
ISSN	00084166
e-ISSN	14803275
Journal	Canadian Journal of Microbiology
Issue Number	4
Volume Number	58
Language	English
Publisher	Canadian Science Publishing
Publisher Date	2012-04-01
Publisher Place	Canada
Access Restriction	Open
Subject Keyword	Discipline Microbiology Anti-infective Agents Metabolism Bacteriocins Genetics Enterococcus Isolation & Purification Genes, Bacterial Polymerase Chain Reaction Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Molecular Biology Immunology Microbiology Applied Microbiology and Biotechnology

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