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An Isolate of Cucumber Mosaic Virus from Fluted Pumpkin in Nigeria
Author(s) -
Atiri G. I.
Publication year - 1985
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1985.tb00852.x
Subject(s) - biology , cucumber mosaic virus , antiserum , virus , infectivity , vigna , virology , aphid , cucumovirus , mosaic virus , zucchini yellow mosaic virus , nicotiana benthamiana , plant virus , botany , antigen , genetics
The properties of a virus isolated from fluted pumpkin ( Telfairia occidentalis ) was investigated. It produced symptoms in some members of the Solanaceae and Leguminosae, and was transmitted nonpersistently by the aphid, Aphis spiraecola . On the basis of these alone, it is distinct from another previously described virus, Telfairia mosaic virus, which neither caused symptoms in members of these families nor was it transmitted by insects. Furthermore, the virus in crude sap or purified preparations reacted with antiserum to cucumber mosaic virus (CMV), but not with antisera to several common viruses in Nigeria. Electron microscopic examination revealed isometric particles of 29 × 1 nm in diameter. These properties confirmed that the virus is an isolate of CMV, and closely resembles the Y‐strain in causing systemic mosaic symptoms in Vigna unguiculata . From infectivity and pathogenicity tests, it is concluded that it is the main cause of mosaic disease in fluted pumpkin.