Development of an oligonucleotide microarray method for Salmonella serotyping

Adequate identification of Salmonella enterica serovars is a prerequisite for any epidemiological investigation. This is traditionally obtained via a combination of biochemical and serological typing. However, primary strain isolation and traditional serotyping is time‐consuming and faster methods w...

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Main Authors: Tankouo‐Sandjong, B., Sessitsch, A., Stralis‐Pavese, N., Liebana, E., Kornschober, C., Allerberger, F., Hächler, H., Bodrossy, L.
Format: Online
Language:English
Published: Blackwell Publishing Ltd 2008
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3815293/
id pubmed-3815293
recordtype oai_dc
spelling pubmed-38152932014-02-12 Development of an oligonucleotide microarray method for Salmonella serotyping Tankouo‐Sandjong, B. Sessitsch, A. Stralis‐Pavese, N. Liebana, E. Kornschober, C. Allerberger, F. Hächler, H. Bodrossy, L. Research Articles Adequate identification of Salmonella enterica serovars is a prerequisite for any epidemiological investigation. This is traditionally obtained via a combination of biochemical and serological typing. However, primary strain isolation and traditional serotyping is time‐consuming and faster methods would be desirable. A microarray, based on two housekeeping and two virulence marker genes (atpD, gyrB, fliC and fljB), has been developed for the detection and identification of the two species of Salmonella (S. enterica and S. bongori), the five subspecies of S. enterica (II, IIIa, IIIb, IV, VI) and 43 S. enterica ssp. enterica serovars (covering the most prevalent ones in Austria and the UK). A comprehensive set of probes (n = 240), forming 119 probe units, was developed based on the corresponding sequences of 148 Salmonella strains, successfully validated with 57 Salmonella strains and subsequently evaluated with 35 blind samples including isolated serotypes and mixtures of different serotypes. Results demonstrated a strong discriminatory ability of the microarray among Salmonella serovars. Threshold for detection was 1 colony forming unit per 25 g of food sample following overnight (14 h) enrichment. Blackwell Publishing Ltd 2008-11 2008-10-14 /pmc/articles/PMC3815293/ /pubmed/21261872 http://dx.doi.org/10.1111/j.1751-7915.2008.00053.x Text en © 2008 The Authors. Journal compilation © 2008 Society for Applied Microbiology and Blackwell Publishing Ltd
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Tankouo‐Sandjong, B.
Sessitsch, A.
Stralis‐Pavese, N.
Liebana, E.
Kornschober, C.
Allerberger, F.
Hächler, H.
Bodrossy, L.
spellingShingle Tankouo‐Sandjong, B.
Sessitsch, A.
Stralis‐Pavese, N.
Liebana, E.
Kornschober, C.
Allerberger, F.
Hächler, H.
Bodrossy, L.
Development of an oligonucleotide microarray method for Salmonella serotyping
author_facet Tankouo‐Sandjong, B.
Sessitsch, A.
Stralis‐Pavese, N.
Liebana, E.
Kornschober, C.
Allerberger, F.
Hächler, H.
Bodrossy, L.
author_sort Tankouo‐Sandjong, B.
title Development of an oligonucleotide microarray method for Salmonella serotyping
title_short Development of an oligonucleotide microarray method for Salmonella serotyping
title_full Development of an oligonucleotide microarray method for Salmonella serotyping
title_fullStr Development of an oligonucleotide microarray method for Salmonella serotyping
title_full_unstemmed Development of an oligonucleotide microarray method for Salmonella serotyping
title_sort development of an oligonucleotide microarray method for salmonella serotyping
description Adequate identification of Salmonella enterica serovars is a prerequisite for any epidemiological investigation. This is traditionally obtained via a combination of biochemical and serological typing. However, primary strain isolation and traditional serotyping is time‐consuming and faster methods would be desirable. A microarray, based on two housekeeping and two virulence marker genes (atpD, gyrB, fliC and fljB), has been developed for the detection and identification of the two species of Salmonella (S. enterica and S. bongori), the five subspecies of S. enterica (II, IIIa, IIIb, IV, VI) and 43 S. enterica ssp. enterica serovars (covering the most prevalent ones in Austria and the UK). A comprehensive set of probes (n = 240), forming 119 probe units, was developed based on the corresponding sequences of 148 Salmonella strains, successfully validated with 57 Salmonella strains and subsequently evaluated with 35 blind samples including isolated serotypes and mixtures of different serotypes. Results demonstrated a strong discriminatory ability of the microarray among Salmonella serovars. Threshold for detection was 1 colony forming unit per 25 g of food sample following overnight (14 h) enrichment.
publisher Blackwell Publishing Ltd
publishDate 2008
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3815293/
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