Premium
Yam mosaic, a new potyvirus infecting Dioscorea cayenensis in the Ivory Coast
Author(s) -
THOUVENEL J.C.,
FAUQUET C.
Publication year - 1979
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.1744-7348.1979.tb06542.x
Subject(s) - potyvirus , biology , nicotiana benthamiana , aphid , dioscorea , infectivity , inoculation , virology , botany , virus , plant virus , horticulture , pathology , medicine , alternative medicine
SUMMARY The major disease affecting Dioscorea cayenensis in the Ivory Coast is caused by a virus which was transmitted by mechanical inoculation to some Dioscorea spp. and Nicotiana benthamiana . In extracts of D. cayenensis leaves infectivity was lost after 10 min at 60 d̀C but not 55 d̀C and after dilution to 10 ‐3 but not 10 ‐2 . A purification procedure is described. The virus particles are flexuous filaments c . 785 nm long. The virus was transmitted by four aphid species in the non‐persistent manner, and is serologically related to four African potyviruses. The name yam mosaic virus is proposed; the present cryptogram is: */*:*/6:E/E:S/Ve/Ap, potyvirus group.