Validation of four real-time TaqMan PCRs for the detection of Ralstonia solanacearum and/or Ralstonia pseudosolanacearum and/or Clavibacter michiganensis subsp. sepedonicus in potato tubers using a statistical regression approach

R.A.M. Vreeburg, A.J.W. Zendman, A. Pol, E. Verheij, M. Nas, M. Kooman-Gersmann

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3 Citations (Scopus)

Abstract

A new DNA extraction method and a new multiplex real-time TaqMan PCR test for detection of Ralstonia solanacearum, Ralstonia pseudosolanacearum and Clavibacter michiganensis subsp. sepedonicus in asymptomatic potato tubers are presented. This new multiplex PCR and three published TaqMan PCRs for detection of R. solanacearum and/or R. pseudosolanacearum and/or R. syzygii spp. and/or C. michiganensis subsp. sepedonicus were validated using linear regression analysis for estimating the Ct values and its variation at 5 × 103 bacteria mL−1. The three published PCRs that have been validated are Massart et al. (2014, detecting R. solanacearum and C. michiganensis subsp. sepedonicus), Weller et al. (1999, detecting R. solanacearum, R. pseudosolanacearum and R. syzygii spp.) and Gudmestad et al. (2009, detecting C. michiganensis subsp. sepedonicus). All tested PCRs were fit for purpose for their target organisms. The PCR tests have different target genes, allowing one of the sets to be used as first screening test and another as second screening test for the detection of R. solanacearum and/or R. pseudosolanacearum and/or C. michiganensis subsp. sepedonicus in asymptomatic potato tubers.
Original languageEnglish
Pages (from-to)86-96
JournalEPPO Bulletin
Volume48
Issue number1
DOIs
Publication statusPublished - 1 Apr 2018

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