RFLP analysis of a PCR-amplified fragment of the 16S rRNA gene as a tool to identify Enterococcus strains

Restriction fragment length polymorphism (RFLP) analysis of a PCR-amplified fragment of the 16S rRNA gene was performed on reference strains belonging to 21 different enterococcal species and on 75 Enterococcus isolates recovered from poultry meat, pasteurised milk and fresh cheese. PCR amplificatio...

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Autors principals: EMD Scheidegger, SAP Fracalanzza, LM Teixeira, P Cardarelli-Leite
Format: Article
Idioma:English
Publicat: Fundação Oswaldo Cruz (FIOCRUZ) 2009-11-01
Col·lecció:Memorias do Instituto Oswaldo Cruz
Matèries:
Accés en línia:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762009000700011
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author EMD Scheidegger
SAP Fracalanzza
LM Teixeira
P Cardarelli-Leite
author_facet EMD Scheidegger
SAP Fracalanzza
LM Teixeira
P Cardarelli-Leite
author_sort EMD Scheidegger
collection DOAJ
description Restriction fragment length polymorphism (RFLP) analysis of a PCR-amplified fragment of the 16S rRNA gene was performed on reference strains belonging to 21 different enterococcal species and on 75 Enterococcus isolates recovered from poultry meat, pasteurised milk and fresh cheese. PCR amplification generated a 275 bp fragment, which was digested with three restriction endonucleases (DdeI, HaeIII, HinfI). The strains were divided into five groups (groups A-E) on the basis of their restriction patterns. Five biochemical tests (arabinose, arginine, manitol, methyl-β-D-glucopyranoside and raffinose) were then performed in addition to RFLP analysis to narrow the identification of enterococcal strains to the species level. PCR-RFLP, in conjunction with the selected biochemical tests, allowed the precise identification of the 21 species of Enterococcus included in the present study. This proposed method is relatively simple and rapid and can be useful as an adjunct tool for accurate identification of Enterococcus.
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spelling doaj.art-70bd901b543f4bdb8995ecd524e33bc72023-09-03T07:24:29ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602009-11-0110471003100810.1590/S0074-02762009000700011RFLP analysis of a PCR-amplified fragment of the 16S rRNA gene as a tool to identify Enterococcus strainsEMD ScheideggerSAP FracalanzzaLM TeixeiraP Cardarelli-LeiteRestriction fragment length polymorphism (RFLP) analysis of a PCR-amplified fragment of the 16S rRNA gene was performed on reference strains belonging to 21 different enterococcal species and on 75 Enterococcus isolates recovered from poultry meat, pasteurised milk and fresh cheese. PCR amplification generated a 275 bp fragment, which was digested with three restriction endonucleases (DdeI, HaeIII, HinfI). The strains were divided into five groups (groups A-E) on the basis of their restriction patterns. Five biochemical tests (arabinose, arginine, manitol, methyl-β-D-glucopyranoside and raffinose) were then performed in addition to RFLP analysis to narrow the identification of enterococcal strains to the species level. PCR-RFLP, in conjunction with the selected biochemical tests, allowed the precise identification of the 21 species of Enterococcus included in the present study. This proposed method is relatively simple and rapid and can be useful as an adjunct tool for accurate identification of Enterococcus.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-0276200900070001116S rRNA gene PCR-RFLPEnterococcus identificationfood isolatesPCR-based identificationphenotypical characterisation
spellingShingle EMD Scheidegger
SAP Fracalanzza
LM Teixeira
P Cardarelli-Leite
RFLP analysis of a PCR-amplified fragment of the 16S rRNA gene as a tool to identify Enterococcus strains
Memorias do Instituto Oswaldo Cruz
16S rRNA gene PCR-RFLP
Enterococcus identification
food isolates
PCR-based identification
phenotypical characterisation
title RFLP analysis of a PCR-amplified fragment of the 16S rRNA gene as a tool to identify Enterococcus strains
title_full RFLP analysis of a PCR-amplified fragment of the 16S rRNA gene as a tool to identify Enterococcus strains
title_fullStr RFLP analysis of a PCR-amplified fragment of the 16S rRNA gene as a tool to identify Enterococcus strains
title_full_unstemmed RFLP analysis of a PCR-amplified fragment of the 16S rRNA gene as a tool to identify Enterococcus strains
title_short RFLP analysis of a PCR-amplified fragment of the 16S rRNA gene as a tool to identify Enterococcus strains
title_sort rflp analysis of a pcr amplified fragment of the 16s rrna gene as a tool to identify enterococcus strains
topic 16S rRNA gene PCR-RFLP
Enterococcus identification
food isolates
PCR-based identification
phenotypical characterisation
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762009000700011
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