Phytoparasitica (1997) 25, p. 218 (Kunhara et al.)

J. Kunhara, S. Tsuda, M. Kinta, T. Otsubo and K. Tomaru (1997)
Cucumber mosaic cucumovirus (CMV-Um) isolated from Prunus mume belongs to subgroup 1 but is distinct in serology
Phytoparasitica 25 (3), 218-218
The Xth International Congress of Virology, August 11-16, 1996, Binyanei haOoma, Jerusalem, Israel, poster
Abstract: CMV-Um was isolated from Japanese apricot (Prunus mume Sieb. et Zucc.) showing leaf-edge necrosis and aspermy syndrome, together with prunus necrotic ringspot like ilarvirus. Serotype of CMV-Um was shown as neither subg. I nor II by both agar gel double diffusion and ELISA tests. Nucleotide sequence in the RNA3 coat protein (CP) coding region of CMV-Um was determined and compared with the earlier reports of other CMV-RNA3. Sequence homologies of nucleotides and putative amino acids between Um and subg. I isolates showed 91-93% and 94-95%, respectively. On the other hand, homology between Um and subg. II isolates showed similarly 75-76% and 80%. Hydrophilicity analysis of amino acid sequence at the regions of high average hydrophilicity of CMV-Um CP indicated four amino acids changes in both subgroups in common, suggesting that a few amino acids changes cause variation of CMV serotype. In conclusion, CMV-Um belongs to subg. I in sequence homology but is different from subg. I and II in serotype.

Research topic(s) for pests/diseases/weeds:
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Cucumber mosaic virus	Prunus (genus - other than fruit trees)