ISHS Acta Horticulturae 94: XI International Symposium on Fruit Tree Virus Diseases
RHABDOVIRUS IN EUONYMUS JAPONICA |
| Authors: | N. PLEŠE, Z. ERIC |
| Abstract:
CODACCIONI (1972) found a rhabdovirus in fasciated stems of Euonymus japonica var. microphylla, but no leaf symptoms were observed on infected Euonymus specimens (CODACCIONI, 1972; CODACCIONI and COSSARD, 1977). Recently we have found bacilliform particles of a rhabdovirus in the leaf parenchyma cells of E. japonica (type form) and E. japonica var. microphylla. The infected plants displayed very prominent spotting and vein yellowing symptoms on the leaves, but they did not show any fasciation of the stems. The bacilliform particles, about 300x 70 nm, were very similar to the rhabdovirus described by the above-mentioned authors and were also situated in perinuclear spaces and inside the cytoplasmic cisternae. In addition, filamentous particles of another virus were observed in the same leaf parenchyma cells of Euonymus. Thus, we cannot say now whether the symptoms on the leaves of E. japonica were provoked by a rhabdovirus, by a filamentous virus or both. However, it seems that the stem fasciation of E. japonica is not associated with the presence of the rhabdovirus. | |
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