The response of plant species used in agriculture and horticulture to viroid infections [Netherlands]
1980
Runia, W.T. (Proefstation voor Tuinbouw onder Glas, Naaldwijk (Netherlands)) | Peters, D.
The reactions of the viroids causing cucumber pale fruit (CPFV), chrysanthemum stunt (CSV) and citrus exocorti (CEV) in different plant species and varieties used in agriculture and horticulture were studied. These viroids caused identical symptoms on tomato and potato. The reactions of chrysanthemum 'Mistletoe' to CPFV or CSV were identical, but CEV-infected plants reacted quite differently. CPFV and CEV caused the same type of symptoms on cucumber plants but symptoms of CEV were always weaker. Ten of the tested horticultural crops species appeared to be susceptible to CPFV, of which eight produced symptoms. In the Netherlands, however, CPFV is only described as pathogen on cucumber plants grown in glasshouses. Ten species were susceptible to CSV of which three produced symptoms. In the Netherlands CSV only occurs in chrysanthemum. Nine of the tested crops proved to be susceptible to CEV and seven were sensitive to this viroid which occurs in citric crops of (sub)tropical climate zones. Our results show that the viroids studied form potential pathogens for other crops than cucumber and chrysanthemum which are now affected by two of them
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