Premium
Pepper veinal mottle virus associated with a streak diseaseof tomato in Nigeria
Author(s) -
LADIPO J. L.,
ROBERTS I. M.
Publication year - 1977
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.1744-7348.1977.tb01868.x
Subject(s) - biology , myzus persicae , mottle , aphid , lycopersicon , pepper , horticulture , physalis , virus , solanaceae , botany , datura stramonium , inoculation , plant virus , virology , biochemistry , gene
SUMMARY A destructive streak disease of tomato (Lycopersicon esculentum) was observed on the University of Ife farm. The disease killed many plants and greatly diminished the quantity and quality of fruit produced by the other plants. A virus that is readily transmitted by mechanical inoculation, by the green peach aphid (Myzus persicae) and by grafting was isolated consistently from diseased plants. The virus was propagated in Nicotiana occidentalis and assayed in Physalis angulata. It was infective after dilution to io ‐3 but not io ‐4 ; after iomin at 55 but not 60 o C; or after 5 days but not 7 days at 20–26 o C. Electron microscope examination of sap from infected N. occidentalis leaves revealed flexuous rods with a modal length of about 780 nm. Based on the host range and symptomatology, particle morphology and size, properties in vitro and serology, the virus is shown to be related to, and possibly indistinguishable from, pepper veinal mottle virus.