Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Tobacco yellow vein assistor (?) luteovirus

Index

• Nomenclature
• Host range, transmission and symptoms
• Physical and biochemical properties
• Taxonomy and relationships
• Comments and References

Data collated by A.N. Adams, 1987.

Nomenclature

Acronym

TYVAV

Strains

virulent and mild (Adams and Hull, 1972).

ICTV decimal code

39.0.1.T.014

Host range and symptoms

Natural host range and symptoms

• Nicotiana rustica - only found in natural infections with tobacco yellow vein virus; which together cause tobacco yellow vein disease.

Transmission

Transmitted by a vector; an insect; Myzus persicae; Aphididae. Transmitted in a persistent manner. Virus retained when the vector moults; can help the vector transmission of another virus (tobacco yellow vein umbravirus); not transmitted by mechanical inoculation.

Ecology and control

Studies reported by Adams and Hull (1972).

Geographical distribution

Spreads in Malawi.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Nicotiana tabacum, N. clevelandii, N. glutinosa, N. rustica - systemic veinal chlorosis and mottling.
• Lycopersicon esculentum - mottling and rugosity (virulent strain only).

Diagnostically insusceptible host species

Chenopodium amaranticolor, C. quinoa, Cucumis sativus, Datura stramonium, Phaseolus vulgaris, Vicia faba.

Maintenance and propagation hosts

Nicotiana clevelandii (W), N. tabacum (W).

Susceptible host species

• Lycopersicon esculentum
• Nicotiana clevelandii
• Nicotiana glutinosa
• Nicotiana rustica
• Nicotiana tabacum

Insusceptible host species

• Arachis hypogaea
• Chenopodium amaranticolor
• Chenopodium quinoa
• Cucumis sativus
• Datura stramonium
• Phaseolus vulgaris
• Vicia faba

Families containing susceptible hosts

• Solanaceae (5/6)

Families containing insusceptible hosts

• Chenopodiaceae (2/2)
• Cucurbitaceae (1/1)
• Leguminosae-Papilionoideae (3/3)
• Solanaceae (1/6)

Sources of host-range data

Adams and Hull (1972).

Physical and biochemical properties

No data available.

Taxonomy and relationships

Probably Luteovirus

Additional comments on relationships

Few of the properties of this virus are known; it is probably a luteovirus (Waterhouse et al., 1988).

Comments and References

References

• Adams, A.N. and Hull, R. (1972). Ann. appl. Biol. 71: 135.
• Waterhouse, P.M., Gildow, F.E. and Johnstone, G.R. (1988). AAB Descr. Pl. Viruses No. 339, 9pp.

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: 20^th August 1996.' URL http://biology.anu.edu.au/Groups/MES/vide/

Dallwitz (1980) and Dallwitz, Paine and Zurcher (1993) should also be cited.