Articles producció científica> Ciències Mèdiques Bàsiques

The Use of a DNA-Intercalating Dye for Quantitative Detection of Viable Arcobacter spp. Cells (v-qPCR) in Shellfish

  • Datos identificativos

    Identificador: imarina:4226697
    Autores:
    Salas-Masso, NuriaQuyen Than LinhChin, Wai HoeWolff, AndersAndree, Karl B.Dolors Furones, M.Jose Figueras, MariaDang Duong Bang
    Resumen:
    The genus Arcobacter (Vandamme et al., 1991), comprised of Campylobacter-related species, are considered zoonotic emergent pathogens. The presence of Arcobacter in food products like shellfish, has an elevated incidence worldwide. In this study, we developed a specific viable quantitative PCR (v-qPCR), using the dye propidium monoazide (PMA), for quantification of the viable Arcobacter spp. cells in raw oysters and mussels. The high selectivity of primers was demonstrated by using purified DNA from 38 different species, 20 of them from the genus Arcobacter. The optimization of PMA concentration showed that 20 ?M was considered as an optimal concentration that inhibits the signal from dead cells at different concentrations (OD550 from 0.2 to 0.8) and at different ratios of live: dead cells (50:50 and 90:10). The v-qPCR results from shellfish samples were compared with those obtained in parallel using several culture isolation approaches (i.e., direct plating on marine and blood agar and by post-enrichment culturing in both media). The enrichment was performed in parallel in Arcobacter-CAT broth with and without adding NaCl. Additionally, the v-qPCR results were compared to those obtained with traditional quantitative (qPCR). The v-qPCR and the qPCR resulted in c.a. 94% of positive detection of Arcobacter vs. 41% obtained by culture approaches. When examining the reduction effect resulting from the use of v-qPCR, samples pre-enriched in Arcobacter-CAT broth supplemented with 2.5% NaCl showed a higher reduction (3.27 log copies) than that of samples obtained directly and those pre-enriched in Arcobacter-CAT broth isolation (1.05 and 1.04). When the v-qPCR was applied to detect arcobacter from real shellfish samples, 15/17 samples tested positive for viable Arcobacter with
  • Otros:

    Autor según el artículo: Salas-Masso, Nuria; Quyen Than Linh; Chin, Wai Hoe; Wolff, Anders; Andree, Karl B.; Dolors Furones, M.; Jose Figueras, Maria; Dang Duong Bang;
    Departamento: Ciències Mèdiques Bàsiques
    Autor/es de la URV: Figueras Salvat, María Josefa
    Palabras clave: arcobacter campylobacter chicken carcasses escherichia-coli ethidium monoazide genetic diversity multiplex pcr pma propidium monoazide qpcr selective detection shellfish staphylococcus-aureus viable cells Arcobacter Pma Qpcr Real-time pcr Shellfish Viable cells
    Resumen: The genus Arcobacter (Vandamme et al., 1991), comprised of Campylobacter-related species, are considered zoonotic emergent pathogens. The presence of Arcobacter in food products like shellfish, has an elevated incidence worldwide. In this study, we developed a specific viable quantitative PCR (v-qPCR), using the dye propidium monoazide (PMA), for quantification of the viable Arcobacter spp. cells in raw oysters and mussels. The high selectivity of primers was demonstrated by using purified DNA from 38 different species, 20 of them from the genus Arcobacter. The optimization of PMA concentration showed that 20 ?M was considered as an optimal concentration that inhibits the signal from dead cells at different concentrations (OD550 from 0.2 to 0.8) and at different ratios of live: dead cells (50:50 and 90:10). The v-qPCR results from shellfish samples were compared with those obtained in parallel using several culture isolation approaches (i.e., direct plating on marine and blood agar and by post-enrichment culturing in both media). The enrichment was performed in parallel in Arcobacter-CAT broth with and without adding NaCl. Additionally, the v-qPCR results were compared to those obtained with traditional quantitative (qPCR). The v-qPCR and the qPCR resulted in c.a. 94% of positive detection of Arcobacter vs. 41% obtained by culture approaches. When examining the reduction effect resulting from the use of v-qPCR, samples pre-enriched in Arcobacter-CAT broth supplemented with 2.5% NaCl showed a higher reduction (3.27 log copies) than that of samples obtained directly and those pre-enriched in Arcobacter-CAT broth isolation (1.05 and 1.04). When the v-qPCR was applied to detect arcobacter from real shellfish samples, 15/17 samples tested positive for viable Arcobacter with 3.41 to 8.70 log copies 1g-1. This study offers a new tool for Arcobacter surveillance in seafood.
    Áreas temáticas: Astronomia / física Biodiversidade Biotecnología Ciência da computação Ciência de alimentos Ciências agrárias i Ciências ambientais Ciências biológicas i Ciências biológicas ii Ciências biológicas iii Economia Engenharias i Engenharias ii Engenharias iii Ensino Farmacia Geociências Geografía Interdisciplinar Matemática / probabilidade e estatística Materiais Medicina i Medicina ii Medicina veterinaria Microbiology Microbiology (medical) Nutrição Odontología Química Saúde coletiva Zootecnia / recursos pesqueiros
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: mariajose.figueras@urv.cat
    ISSN: 1664302X
    Identificador del autor: 0000-0002-2268-8980
    Fecha de alta del registro: 2023-02-22
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2019.00368/full
    Referencia al articulo segun fuente origial: Frontiers In Microbiology. 10 (368): 368-
    Referencia de l'ítem segons les normes APA: Salas-Masso, Nuria; Quyen Than Linh; Chin, Wai Hoe; Wolff, Anders; Andree, Karl B.; Dolors Furones, M.; Jose Figueras, Maria; Dang Duong Bang; (2019). The Use of a DNA-Intercalating Dye for Quantitative Detection of Viable Arcobacter spp. Cells (v-qPCR) in Shellfish. Frontiers In Microbiology, 10(368), 368-. DOI: 10.3389/fmicb.2019.00368
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI del artículo: 10.3389/fmicb.2019.00368
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2019
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Microbiology,Microbiology (Medical)
    arcobacter
    campylobacter
    chicken carcasses
    escherichia-coli
    ethidium monoazide
    genetic diversity
    multiplex pcr
    pma
    propidium monoazide
    qpcr
    selective detection
    shellfish
    staphylococcus-aureus
    viable cells
    Arcobacter
    Pma
    Qpcr
    Real-time pcr
    Shellfish
    Viable cells
    Astronomia / física
    Biodiversidade
    Biotecnología
    Ciência da computação
    Ciência de alimentos
    Ciências agrárias i
    Ciências ambientais
    Ciências biológicas i
    Ciências biológicas ii
    Ciências biológicas iii
    Economia
    Engenharias i
    Engenharias ii
    Engenharias iii
    Ensino
    Farmacia
    Geociências
    Geografía
    Interdisciplinar
    Matemática / probabilidade e estatística
    Materiais
    Medicina i
    Medicina ii
    Medicina veterinaria
    Microbiology
    Microbiology (medical)
    Nutrição
    Odontología
    Química
    Saúde coletiva
    Zootecnia / recursos pesqueiros
    1664302X
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