^○Richard Kormelink (Laboratory of Virology, Department of Plant Sciences, Wageningen University & Research)

^○Jesús Navas-Castillo (Instituto de Hortofruticultura Subtropical y Mediterranea La Mayora (IHSM-CSIC-UMA), Algarrobo-Costa, Malaga, Spain)

^○Ioly Kotta-Loizou¹, Robert H. A. Coutts² (1.Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, United Kingdom, 2.Department of Clinical, Pharmaceutical and Biological Sciences, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom)

^○Hideki Takahashi (Graduate School of Agricultural Science, Tohoku University)