Geographic distribution, natural host range, pollen and seed transmissibility of artichoke yellow ring spot virus
1984
Kyriakopoulos, I.P. (Benaki Phytopathological Inst., Kifisia-Athens (Greece)) | Rana, L.G. (Bari Univ. (Italy). Dept. of Plant Pathology) | Roca, F. (C.N.R., Bari (Italy). Agricultural Nematology Inst.)
Artichoke yellow ringspot virus has a wide distribution in north-east Peloponnesus (Greece), wide natural host range mostly with ringspot and mosaic mottle type symptoms, and occurs very frequently in nature where it is found on actively growing plants throughout the year. In Italy it was found only in 1976 in Palermo in a limited number of hosts. In test plants in the greenhouse and in naturally infected hosts, in Greece, AYRV proved to be seed-transmissible in high percentages. It was also found to be present in the pollen of infected plants, to be pollen transmissible, and, in at least one host species, to infect plants through pollination. Extended research for nematode transmission gave negative results. Most data support the hypothesis that AYRV is a nepo virus, but no nematode vector was found. The transmission of virus with seed and pollen plays propably a role in its natural transmission and distribution
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