Evaluation of the infectivity of selected turnip mosaic virus isolates towards white cabbage cultivars

Abstract

Experiments were carried out to evaluate the reaction of cabbage cultivars to mechanical inoculation with selected isolates of the turnip mosaic virus (TuMV). Simultaneously we aimed for the assessment of TuMV pathogenicity towards cultivars chosen to be transformed in order to obtain the resistance trait. The TuMV-CAR37A and TuMV-CAR39 isolates from horseradish proved to be infective towards ‘Amager’ and ‘Langedijker’ B. oleracea subsp. capitata f. alba. The course of symptom expression was assessed and the results of virus detection in symptomless leaves, using DAS-ELISA, were documented. Both tested cultivars showed a similar level of susceptibility. TuMV-CAR37A and TuMV-CAR39 can be useful in the selection of cabbage lines with resistance to the turnip mosaic virus.

TuMV management for brassica crops through host resistance: retrospect and prospects

“…Additional methods of TuMV control include cultivation of resistant host varieties, which could provide a more effective and environmentally friendly approach. In particular, virus‐resistant cultivars could be important in controlling TuMV epidemics, although resistance‐breaking TuMV pathotypes that overcome single gene resistance may arise (Jenner & Walsh, ; Hughes et al ., ; Walsh et al ., ; Gładysz & Hanus‐Fajerska, ). It is necessary to combine control measures (including identification of symptoms and virus by molecular, serological and electron microscopical methods) with host resistance to ensure effective TuMV‐induced disease management (Jones, , ).…”

Reaction of cabbage lines reveals resistance to infection by Cucumber mosaic virus

“…capitata f. alba 'Amager', TuMV presence was detected in 50% of plants inoculated with CAR39 isolate and in 42.5% of plants inoculated with CAR37A isolate. For the 'Langedijker' cultivar, the percentage of infected plants was 35 and 50, respectively, for CAR37A and CAR39 isolates (Gładysz and Hanus-Fajerska 2009). …”