Microbes and Environments
Online ISSN : 1347-4405
Print ISSN : 1342-6311
ISSN-L : 1342-6311

This article has now been updated. Please use the final version.

Genotypic Diversity, Antibiotic Resistance and Bacteriocin Production of Enterococci Isolated from Rhizospheres
Naouel Klibi, Naouel Ben Slimen, Imen Fhoula, Maria López, Karim Ben Slama, Daniele Daffonchio, Abdellatif Boudabous, Carmen Torres, Hadda Ouzari
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Keywords: Enterococci, antibiotic resistance, bacteriocins, MLST, PFGE
JOURNAL FREE ACCESS Advance online publication

Article ID: ME12041

The final version of this article is now available: Vol. 27 (2012), No. 4
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Abstract
This study aimed to identify and to characterize rhizospheric-derived enterococci. The results showed the prevalence of Enterococcus faecium species (97%) vs. Enterococcus durans (3%). Susceptibility testing for antibiotics showed a low percentage of resistance to erythromycin (3.2%) and tetracycline (11.2%), and intermediate resistance to vancomycin (6.5%). Nevertheless, a high proportion of bacteriocin production was recorded. Furthermore, PCR detection of antibiotic resistance and bacteriocin production-encoding genes was investigated. Pulsed-field gel electrophoresis typing (PFGE) showed a great variability of enterococci in the rhizosphere. Moreover, mutilocus-sequence-typing analysis (MLST) revealed the identification of three new sequence types (STs), which were registered as ST613, ST614 and ST615.
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© 2012 Japanese Society of Microbial Ecology / Japanese Society of Soil Microbiology / Taiwan Society of Microbial Ecology
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