Plant Viruses
Online 
Descriptions and Lists from
the VIDE Database
Telfairia mosaic
potyvirus
Index
Data collated by A.A. Brunt, 1987.
Nomenclature
Acronym
ICTV decimal code
Host range and symptoms
First reported
in Telfairia occidentalis; from Nigeria; by Nwauzo and Brown (1975).
Natural host range and symptoms
Symptoms persist.
- Telfairia occidentalis - stunting, chlorosis of leaves,
malformation of fruits.
Transmission
Transmitted by a vector; an insect; Aphis
spiraecola; Aphididae. Transmitted in a non-persistent manner. Virus
transmitted by mechanical inoculation; transmitted by grafting; not transmitted
by contact between plants; transmitted by seed (Anno-Nyako, 1988); not
transmitted by pollen.
Ecology and control
Studies reported
by Atiri and Varma (1983).
Geographical distribution
Experimental host range
Several (3-9) families
susceptible.
Diagnostically susceptible host species and
symptoms
- Citrullus vulgaris, Cucumis melo, Cucumis sativus,
Cucurbita pepo - systemic leaf chlorosis.
- Chenopodium
amaranticolor, C. quinoa, C. murale, Phaseolus vulgaris - chlorotic or
necrotic local lesions; not systemic.
- Nicotiana benthamiana, N.
clevelandii - systemic chlorosis.
Diagnostically insusceptible
host species
Nicotiana rustica, N. glutinosa, Datura metel,
Brassica campestris ssp. pekinensis, Ocimum basilicum.
Maintenance and propagation hosts
Nicotiana benthamiana,
N. clevelandii.
Assay hosts (Local lesions or
Whole plants)
Chenopodium quinoa (L),
Phaseolus vulgaris (L).
Susceptible host species
Insusceptible host species
Families containing susceptible hosts
Families containing
insusceptible hosts
Physical and
biochemical properties
Properties of particles in sap
TIP:
65-70 °C (in Telfairia occidentalis sap). LIV: 1 days (or less at about
25ºC). DEP: log10 minus 3-4.
Purification method
Particle morphology
Virions filamentous; usually
flexuous; with a clear modal length; of 806 nm; 13 nm wide. Basic helix obscure.
Physical properties
One sedimenting component in purified
preparations; sedimentation coefficient 145 S. Density 1.32 g cm-3
in CsCl.
Biochemical properties
Features of proteins
Virion protein(s) one;
Mr 32000; coat protein.
Cytopathology
Virions found in leaves and roots; in
cytoplasm. Inclusions present in infected cells; are pinwheels (often seen as
scrolls); they do not contain virions. Other cellular changes: hypertrophy of
elements of endoplasmic reticulum with vesicles containing finely stranded
material.
Taxonomy and
relationships
Virus(es) with serologically related virions
Bean yellow mosaic, watermelon mosaic 2 and zucchini yellow mosaic
viruses.
Virus(es) with serologically unrelated virions
Alstroemeria mosaic, arracacha Y, bean common mosaic,
bidens mottle, blackeye cowpea mosaic, commelina mosaic, clover yellow vein,
datura shoestring, freesia mosaic, henbane mosaic, hippeastrum mosaic, iris mild
mosaic, iris severe mosaic, lettuce mosaic, nerine yellow stripe, papaya
ringspot, passiflora woodiness, peanut mottle, pepper veinal mottle, potato Y,
sugarbeet mosaic, sweet potato feathery mottle, tobacco etch, turnip mosaic and
ullucus mosaic viruses.
Comments and
References
References
- Anno-Nyako, F.O. (1988).
J. Phytopath. 121: 85.
- Atiri, G.I. and Varma, A. (1983).
Trop. Agric., Trin. 60: 95.
- Nwauzo, E.E. and Brown, W.M.
(1975). Pl. Dis. Reptr 50: 430.
- Shoyinka, S.A., Brunt, A.A.,
Phillips, S., Lesemann, D.-E., Thottappilly, G. and Lastra, R. (1987). J.
Phytopath. 119: 13.
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