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Host range and properties of artichoke yellow ringspot virus
Author(s) -
RANA G. L.,
GALLITELLI D.,
KYRIAKOPOULOU P. E.,
RUSSO M.,
MARTELLI G. P.
Publication year - 1980
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1980.tb02977.x
Subject(s) - nepovirus , biology , virus , rna , herbaceous plant , virology , plant virus , botany , gene , genetics
SUMMARY The biological, serological and physico‐chemical properties of one isolate of artichoke yellow ringspot virus (AYRV) from Greece and another from Italy were compared. Both isolates infected 56 herbaceous species and there were few differences between them in the symptoms they caused. During purification they behaved identically and both tended to aggregate. Virus particles were isometric and measured c . 30 nm in diameter. In CsCl, virus sedimented as mixed aggregates of empty and full particles with buoyant densities varying from 1.20–1.30 g/ml and from 1.40–1.53 g/ml, respectively. The coat protein of AYRV contains a single polypeptide of mol. wt 53000 and the genome consists of two species of single‐stranded RNA with mol. wts 2.17 × 10 6 (RNA‐1) and 1.85 × 10 6 (RNA‐2) daltons, estimated under denaturing conditions. The two virus isolates are serologically very closely related but are unrelated to 28 other plant viruses with isometric particles. The characteristics of AYRV suggest that it is a possible member of the nepovirus group.