Real-Time PCR Method for the Rapid Detection and Quantification of Pathogenic <i>Staphylococcus</i> Species Based on Novel Molecular Target Genes

Coagulase-positive <i>Staphylococcus aureus</i> is a foodborne pathogen considered one of the causes of food-related disease outbreaks. Like <i>S. aureus</i>, <i>Staphylococcus capitis</i>, <i>Staphylococcus caprae</i>, and <i>S. epidermidis</...

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Autores principales: Eiseul Kim, Seung-Min Yang, Ji-Eun Won, Da-Young Kim, Da-Som Kim, Hae-Yeong Kim
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Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/fb6b32542d5842ebb4a7fead2b6e46cb
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spelling oai:doaj.org-article:fb6b32542d5842ebb4a7fead2b6e46cb2021-11-25T17:36:18ZReal-Time PCR Method for the Rapid Detection and Quantification of Pathogenic <i>Staphylococcus</i> Species Based on Novel Molecular Target Genes10.3390/foods101128392304-8158https://doaj.org/article/fb6b32542d5842ebb4a7fead2b6e46cb2021-11-01T00:00:00Zhttps://www.mdpi.com/2304-8158/10/11/2839https://doaj.org/toc/2304-8158Coagulase-positive <i>Staphylococcus aureus</i> is a foodborne pathogen considered one of the causes of food-related disease outbreaks. Like <i>S. aureus</i>, <i>Staphylococcus capitis</i>, <i>Staphylococcus caprae</i>, and <i>S. epidermidis</i> are opportunistic pathogens causing clinical infections and food contamination. The objective of our study was to develop a rapid, accurate, and monitoring technique to detect four <i>Staphylococcus</i> species in food. Four novel molecular targets (GntR family transcriptional regulator for <i>S. aureus</i>, phosphomannomutase for <i>S. epidermidis</i>, FAD-dependent urate hydroxylase for <i>S. capitis</i>, and Gram-positive signal peptide protein for <i>S. caprae</i>) were mined based on pan-genome analysis. Primers targeting molecular target genes showed 100% specificity for 100 non-target reference strains. The detection limit in pure cultures and artificially contaminated food samples was 10<sup>2</sup> colony-forming unit/mL for <i>S. aureus</i>, <i>S. capitis</i>, <i>S. caprae</i>, and <i>S. epidermidis</i>. Moreover, real-time polymerase chain reaction successfully detected strains isolated from various food matrices. Thus, our method allows an accurate and rapid monitoring of <i>Staphylococcus</i> species and may help control staphylococcal contamination of food.Eiseul KimSeung-Min YangJi-Eun WonDa-Young KimDa-Som KimHae-Yeong KimMDPI AGarticle<i>Staphylococcus aureus</i><i>Staphylococcus capitis</i><i>Staphylococcus caprae</i><i>Staphylococcus epidermidis</i>real-time PCRpan-genome analysisChemical technologyTP1-1185ENFoods, Vol 10, Iss 2839, p 2839 (2021)
institution DOAJ
collection DOAJ
language EN
topic <i>Staphylococcus aureus</i>
<i>Staphylococcus capitis</i>
<i>Staphylococcus caprae</i>
<i>Staphylococcus epidermidis</i>
real-time PCR
pan-genome analysis
Chemical technology
TP1-1185
spellingShingle <i>Staphylococcus aureus</i>
<i>Staphylococcus capitis</i>
<i>Staphylococcus caprae</i>
<i>Staphylococcus epidermidis</i>
real-time PCR
pan-genome analysis
Chemical technology
TP1-1185
Eiseul Kim
Seung-Min Yang
Ji-Eun Won
Da-Young Kim
Da-Som Kim
Hae-Yeong Kim
Real-Time PCR Method for the Rapid Detection and Quantification of Pathogenic <i>Staphylococcus</i> Species Based on Novel Molecular Target Genes
description Coagulase-positive <i>Staphylococcus aureus</i> is a foodborne pathogen considered one of the causes of food-related disease outbreaks. Like <i>S. aureus</i>, <i>Staphylococcus capitis</i>, <i>Staphylococcus caprae</i>, and <i>S. epidermidis</i> are opportunistic pathogens causing clinical infections and food contamination. The objective of our study was to develop a rapid, accurate, and monitoring technique to detect four <i>Staphylococcus</i> species in food. Four novel molecular targets (GntR family transcriptional regulator for <i>S. aureus</i>, phosphomannomutase for <i>S. epidermidis</i>, FAD-dependent urate hydroxylase for <i>S. capitis</i>, and Gram-positive signal peptide protein for <i>S. caprae</i>) were mined based on pan-genome analysis. Primers targeting molecular target genes showed 100% specificity for 100 non-target reference strains. The detection limit in pure cultures and artificially contaminated food samples was 10<sup>2</sup> colony-forming unit/mL for <i>S. aureus</i>, <i>S. capitis</i>, <i>S. caprae</i>, and <i>S. epidermidis</i>. Moreover, real-time polymerase chain reaction successfully detected strains isolated from various food matrices. Thus, our method allows an accurate and rapid monitoring of <i>Staphylococcus</i> species and may help control staphylococcal contamination of food.
format article
author Eiseul Kim
Seung-Min Yang
Ji-Eun Won
Da-Young Kim
Da-Som Kim
Hae-Yeong Kim
author_facet Eiseul Kim
Seung-Min Yang
Ji-Eun Won
Da-Young Kim
Da-Som Kim
Hae-Yeong Kim
author_sort Eiseul Kim
title Real-Time PCR Method for the Rapid Detection and Quantification of Pathogenic <i>Staphylococcus</i> Species Based on Novel Molecular Target Genes
title_short Real-Time PCR Method for the Rapid Detection and Quantification of Pathogenic <i>Staphylococcus</i> Species Based on Novel Molecular Target Genes
title_full Real-Time PCR Method for the Rapid Detection and Quantification of Pathogenic <i>Staphylococcus</i> Species Based on Novel Molecular Target Genes
title_fullStr Real-Time PCR Method for the Rapid Detection and Quantification of Pathogenic <i>Staphylococcus</i> Species Based on Novel Molecular Target Genes
title_full_unstemmed Real-Time PCR Method for the Rapid Detection and Quantification of Pathogenic <i>Staphylococcus</i> Species Based on Novel Molecular Target Genes
title_sort real-time pcr method for the rapid detection and quantification of pathogenic <i>staphylococcus</i> species based on novel molecular target genes
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/fb6b32542d5842ebb4a7fead2b6e46cb
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AT jieunwon realtimepcrmethodfortherapiddetectionandquantificationofpathogenicistaphylococcusispeciesbasedonnovelmoleculartargetgenes
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