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Brunetti, Angela; Heungens, Kurt; Hubert, Jacqueline; Ioos, Renaud; Bianchi, Gian Luca; De Amicis, Francesca; Chandelier, Anne; Van Der Linde, Sietse; Perez-Sierra, Ana; Gualandri, Valeria; Silletti, Maria Rosaria; Trisciuzzi, Vito Nicola; Rimondi, Silvia; Baschieri, Tiziana; Romano, Elio; Lumia, Valentina; Luigi, Marta; Faggioli, Francesco; Pilotti, Massimo

Interlaboratory Performance of a Real-Time PCR Method for Detection of Ceratocystis platani, the Agent of Canker Stain of Platanus spp

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  • Media type: E-Article
  • Title: Interlaboratory Performance of a Real-Time PCR Method for Detection of Ceratocystis platani, the Agent of Canker Stain of Platanus spp
  • Contributor: Brunetti, Angela; Heungens, Kurt; Hubert, Jacqueline; Ioos, Renaud; Bianchi, Gian Luca; De Amicis, Francesca; Chandelier, Anne; Van Der Linde, Sietse; Perez-Sierra, Ana; Gualandri, Valeria; Silletti, Maria Rosaria; Trisciuzzi, Vito Nicola; Rimondi, Silvia; Baschieri, Tiziana; Romano, Elio; Lumia, Valentina; Luigi, Marta; Faggioli, Francesco; Pilotti, Massimo
  • imprint: MDPI AG, 2022
  • Published in: Journal of Fungi
  • Language: English
  • DOI: 10.3390/jof8080778
  • ISSN: 2309-608X
  • Keywords: Plant Science ; Ecology, Evolution, Behavior and Systematics ; Microbiology (medical)
  • Origination:
  • Footnote:
  • Description: <jats:p>Ceratocystis platani (CP), an ascomycetous fungus, is the agent of canker stain, a lethal vascular disease of Platanus species. Ceratocystis platani has been listed as a quarantine pest (EPPO A2 list) due to extensive damage caused in Southern Europe and the Mediterranean region. As traditional diagnostic assays are ineffective, a Real-Time PCR detection method based on EvaGreen, SYBR Green, and Taqman assays was previously developed, validated in-house, and included in the official EPPO standard PM7/14 (2). Here, we describe the results of a test performance study performed by nine European laboratories for the purpose of an interlaboratory validation. Verification of the DNA extracted from biological samples guaranteed the high quality of preparations, and the stability and the homogeneity of the aliquots intended for the laboratories. All of the laboratories reproduced nearly identical standard curves with efficiencies close to 100%. Testing of blind-coded DNA extracted from wood samples revealed that all performance parameters—diagnostic sensitivity, diagnostic specificity, accuracy and reproducibility—were best fit in most cases both at the laboratory and at the assay level. The previously established limit of detection, 3 fg per PCR reaction, was also validated with similar excellent results. The high interlaboratory performance of this Real-Time PCR method confirms its value as a primary tool to safeguard C. platani-free countries by way of an accurate monitoring, and to investigate the resistance level of potentially canker stain-resistant Platanus genotypes.</jats:p>
  • Access State: Open Access