Probe-based real-time PCR method for multilocus melt typing of Xylella fastidiosa strains. Academic Article uri icon


  • Epidemiological studies of Pierce's disease (PD) can be confounded by a lack of taxonomic detail on the bacterial causative agent, Xylella fastidiosa (Xf). PD in grape is caused by strains of Xylella fastidiosa subsp. fastidiosa, but is not caused by other subspecies of Xf that typically colonize plants other than grape. Detection assays using ELISA and qPCR are effective at detecting and quantifying Xf presence or absence, but offer no information on Xf subspecies or strain identity. Surveying insects or host plants for Xf by current ELISA or qPCR methods provides only presence/absence and quantity information for any and all Xf subspecies, potentially leading to false assessments of disease threat. This study uses a series of adjacent-hybridizing DNA melt analysis probes that are capable of efficiently discriminating Xf subspecies and strain relationships in rapid real-time PCR reactions.

published proceedings

  • J Microbiol Methods

altmetric score

  • 3

author list (cited authors)

  • Brady, J. A., Faske, J. B., Ator, R. A., Castaeda-Gill, J. M., & Mitchell, F. L.

citation count

  • 4

complete list of authors

  • Brady, Jeff A||Faske, Jennifer B||Ator, Rebecca A||CastaƱeda-Gill, Jessica M||Mitchell, Forrest L

publication date

  • April 2012