Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Grapevine Algerian latent tombusvirus

Index

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

Data collated by A.A. Brunt, 1992.

Nomenclature

Acronym

GALV

ICTV decimal code

74.0.1.0.007

Host range and symptoms

Natural host range and symptoms

• Vitis vinifera - no conspicuous symptoms.

Transmission

Transmitted by means not involving a vector.

Geographical distribution

Found, but with no evidence of spread, in Algeria, Germany and Italy.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Chenopodium amaranticolor, C. quinoa - local lesions.
• Nicotiana benthamiana - systemic chlorosis and necrosis.

Diagnostically insusceptible host species

Nicotiana clevelandii.

Maintenance and propagation hosts

Nicotiana benthamiana.

Assay hosts (Local lesions or Whole plants)

Chenopodium quinoa (L), C. amaranticolor (L).

Susceptible host species

• Chenopodium amaranticolor
• Chenopodium quinoa
• Nicotiana benthamiana
• Vitis vinifera

Insusceptible host species

• Nicotiana clevelandii

Families containing susceptible hosts

• Chenopodiaceae (2/2)
• Solanaceae (1/2)
• Vitidaceae (1/1)

Families containing insusceptible hosts

• Solanaceae (1/2)

Physical and biochemical properties

Particle morphology

Virions isometric; not enveloped; 33 nm in diameter.

Biochemical properties

Genome consists of RNA; single-stranded; unipartite; largest (or only) genome part 4.6 kb.

Features of proteins

Virion protein(s) one; M_r 35900; coat protein.

Cytopathology

Virions found in leaves and mesophyll; in cytoplasm. Inclusions absent from infected cells. Other cellular changes: the virus induces the formation of membrane associated vesicles at the periphery of peroxisomes which possibly contain dsRNA. It also sometimes induces the formation of rod-like structures in cytoplasm and in the stroma of chloroplasts and mitochondria.

Taxonomy and relationships

Tombusvirus: Tombusviridae

Virus(es) with serologically related virions

Eggplant mottled crinkle tombusvirus.

Additional comments on relationships

The viral RNA has some sequence homology with those of cymbidium ringspot, petunia asteroid mosaic and Sikte waterborne tombusviruses.

Comments and References

General comments

The virus has only been found in river water in Germany and in Sicily.

References

• Cannizzaro, G., Rosciglione, B., and Castellano, M.A. (1990). Inform. Fitopatol. 40: 55.
• Gallitelli, D., Martelli, G.P. and di Franco, A. (1989). Phytoparasitica 17: 61.
• Yi, L., Lesemann, D.-E., Koenig, R., Rüdel, M. and Pfeilstetter, E. (1992). J. Phytopath. 134: 121.

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.