Detection and characterization of Chrysanthemum virus B (CVB) isolates in PolandWykrywanie i charakterystyka izolatów wirusa B chryzantemy (Chrysanthemum virus B, CVB) w Polsce

Summary In 2013 and 2014 in the Plant Disease Clinic of Institute of Plant Protection – National Research Institute in Poznan, chrysanthemum plants showing symptoms of stunted growth, mosaic and malformation of leaves and abnormal pigmentation of flowers were tested. All plants were analyzed using biological, electron microscopy and molecular biology methods. The plants were examined for the presence of the following pathogens: Chrysanthemum virus B (CVB), Tomato aspermy virus (TAV), Chrysanthemum stunt viroid (CSVd) and Chrysanthemum chlorotic mottle viroid (CChMVd). The presence of CVB was confirmed in the samples collected from 15 plants. The isolates were genetically identical and shared high level of similarity with isolates from India and Japan.