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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MDPI AG
2021
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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 |
work_keys_str_mv |
AT eiseulkim realtimepcrmethodfortherapiddetectionandquantificationofpathogenicistaphylococcusispeciesbasedonnovelmoleculartargetgenes AT seungminyang realtimepcrmethodfortherapiddetectionandquantificationofpathogenicistaphylococcusispeciesbasedonnovelmoleculartargetgenes AT jieunwon realtimepcrmethodfortherapiddetectionandquantificationofpathogenicistaphylococcusispeciesbasedonnovelmoleculartargetgenes AT dayoungkim realtimepcrmethodfortherapiddetectionandquantificationofpathogenicistaphylococcusispeciesbasedonnovelmoleculartargetgenes AT dasomkim realtimepcrmethodfortherapiddetectionandquantificationofpathogenicistaphylococcusispeciesbasedonnovelmoleculartargetgenes AT haeyeongkim realtimepcrmethodfortherapiddetectionandquantificationofpathogenicistaphylococcusispeciesbasedonnovelmoleculartargetgenes |
_version_ |
1718412203661459456 |