Host range and symptomatology of Pepino mosaic virus strains occurring in Europe

Dag Ragnar Blystad*, René van der Vlugt, Ana Alfaro-Fernández, María del Carmen Córdoba, Gábor Bese, Dimitrinka Hristova, Henryk Pospieszny, Nataša Mehle, Maja Ravnikar, Laura Tomassoli, Christina Varveri, Steen Lykke Nielsen

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)

Abstract

Pepino mosaic virus (PepMV) has caused great concern in the greenhouse tomato industry after it was found causing a new disease in tomato in 1999. The objective of this paper is to investigate alternative hosts and compare important biological characteristics of the three PepMV strains occurring in Europe when tested under different environmental conditions. To this end we compared the infectivity and symptom development of three, well characterized isolates belonging to three different PepMV strains, EU-tom, Ch2 and US1, by inoculating them on tomato, possible alternative host plants in the family Solanaceae and selected test plants. The inoculation experiments were done in 10 countries from south to north in Europe. The importance of alternative hosts among the solanaceous crops and the usefulness of test plants in the biological characterization of PepMV isolates are discussed. Our data for the three strains tested at 10 different European locations with both international and local cultivars showed that eggplant is an alternative host of PepMV. Sweet pepper is not an important host of PepMV, but potato can be infected when the right isolate is matched with a specific cultivar. Nicotiana occidentalis 37B is a useful indicator plant for PepMV studies, since it reacts with a different symptomatology to each one of the PepMV strains.

Original languageEnglish
Pages (from-to)43-56
JournalEuropean Journal of Plant Pathology
Volume143
Issue number1
DOIs
Publication statusPublished - 2015

Keywords

  • Host plants
  • Pepino mosaic virus
  • Potexvirus
  • Strains
  • Test plants

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    Blystad, D. R., van der Vlugt, R., Alfaro-Fernández, A., del Carmen Córdoba, M., Bese, G., Hristova, D., Pospieszny, H., Mehle, N., Ravnikar, M., Tomassoli, L., Varveri, C., & Nielsen, S. L. (2015). Host range and symptomatology of Pepino mosaic virus strains occurring in Europe. European Journal of Plant Pathology, 143(1), 43-56. https://doi.org/10.1007/s10658-015-0664-1