ISHS Acta Horticulturae 129: III International Symposium on Small Fruit Virus Diseases
RASPBERRY BUSHY DWARF AND TOMATO RINGSPOT VIRUSES IN CHILEAN RED RASPBERRIES |
| Authors: | J. Auger, R. H. Converse |
| Abstract:
Two viruses were detected in red raspberries grown commercially in Chile. About 500 ha. of current American and British cultivars, as well as old Chilean types of probable German origin, Palo blanco (Pb) and Palo colorado (Pc), are grown. A preliminary virus survey was made of Pb and Pc from 12 locations using enzyme-linked immunosorbent assay (ELISA) to test for raspberry bushy dwarf virus (RBDV), tomato ringspot virus (TomRSV), and tobacco streak virus (TSV). All 3 viruses are seed-borne in Rubus. Known infected and healthy seed served as ELISA controls. Fresh leaf samples were tested from all 12 locations and seed samples from 8. RBDV was found in 7/11 Pb sources tested. TomRSV occurred in 1/5 Pc sources tested, and was subsequently successfully sap-transmitted to herbaceous test plants. TSV was not found in any of these samples. Fresh leaf and dry seed ELISA results were in complete agreement. No field symptoms were unequivocally associated with either RBDV or TomRSV, and both viruses are here newly reported to occur in South America. | |
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