Plant Viruses
Online 
Descriptions and Lists from
the VIDE Database
Dioscorea
trifida (?) potyvirus
Index
Data collated by A. Porth and F. Nienhaus, 1986.
Nomenclature
Acronym
ICTV decimal code
Host range and symptoms
First reported
in Dioscorea trifida; from Guadeloupe; by Migliori and Cadilhac (1976).
Natural host range and symptoms
- Dioscorea
trifida - mosaic, chlorotic flecking, vein-banding and leaf deformation.
Transmission
Transmitted by a vector; an insect; Aphis
gossypii; Aphididae. Transmitted in a non-persistent manner. Virus
transmitted by mechanical inoculation.
Geographical
distribution
Diagnostically susceptible host species and symptoms
- Dioscorea alata, D. cayenensis - mosaic, chlorotic
flecking, vein-banding and leaf deformation.
Susceptible host species
Families containing susceptible hosts
Purification method
Migliori and
Cadilhac (1976).
Physical and biochemical properties
Particle morphology
Virions filamentous; not enveloped;
usually flexuous; with a clear modal length; of 760 nm.
Cytopathology
Virions found in all parts of the host
plant; in cytoplasm. Inclusions present in infected cells; are pinwheels and
unusual in shape; and laminated aggregates; they do not contain virions.
Taxonomy and
relationships
Best tests for diagnosis
Cucumber
mosaic virus often occurs with the virus (Migliori and Cadilhac, 1976).
Comments and
References
References
- Marchoux, G., Edwige, S.
and Migliori, A. (1979). Ann. Phytopath. 11: 535.
- Migliori, A.
and Cadilhac, B. (1976). Ann. Phytopath. 8: 73.
Cite this publication as:
Brunt, A.A., Crabtree, K., Dallwitz, M.J., Gibbs, A.J., Watson, L. and Zurcher, E.J. (eds.)
(1996 onwards).
`Plant Viruses Online: Descriptions and Lists from the VIDE Database.
Version: 20th August 1996.' URL
http://biology.anu.edu.au/Groups/MES/vide/
Dallwitz (1980)
and
Dallwitz, Paine and Zurcher (1993)
should also be cited.
Please send comments, corrections and suggestions to:
vide-manager@biology.anu.edu.au