Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Artichoke latent S (?) carlavirus

Index

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

Data collated by D. Gallitelli, 1991.

Nomenclature

Acronym

ArLVS

ICTV decimal code

14.0.T.1.004

Host range and symptoms

Natural host range and symptoms

Symptoms none.
• Cynara scolymus - symptomless.

Transmission

Not transmitted by Myzus persicae. Virus transmitted by mechanical inoculation.

Geographical distribution

Found, but with no evidence of spread, in northern Italy.

Experimental host range

Few (<3) families susceptible. Experimentally infected plants mostly show chlorotic to necrotic local lesions and systemic leaf chlorosis.

Diagnostically susceptible host species and symptoms

• Chenopodium amaranticolor, C. quinoa - chlorotic or necrotic local lesions.
• Nicotiana benthamiana - systemic leaf chlorosis, leaf rolling.
• Zinnia elegans - local and systemic mottling.

Diagnostically insusceptible host species

Cucumis sativus, Gomphrena globosa, Nicotiana clevelandii, N. megalosiphon, Cynara scolymus cv. Molese.

Maintenance and propagation hosts

Nicotiana benthamiana.

Assay hosts (Local lesions or Whole plants)

Chenopodium amaranticolor (L), C. quinoa (L), Nicotiana benthamiana (W).

Susceptible host species

• Chenopodium amaranticolor
• Chenopodium quinoa
• Cynara scolymus
• Nicotiana benthamiana
• Zinnia elegans

Insusceptible host species

• Celosia cristata
• Cucumis sativus
• Cynara scolymus (cvs Molese, Violetto di Provenza, Camus de Bretagne)
• Gomphrena globosa
• Nicotiana clevelandii
• Nicotiana megalosiphon
• Phaseolus vulgaris

Families containing susceptible hosts

• Chenopodiaceae (2/2)
• Compositae (2/2)
• Solanaceae (1/3)

Families containing insusceptible hosts

• Amaranthaceae (2/2)
• Compositae (1/2)
• Cucurbitaceae (1/1)
• Leguminosae-Papilionoideae (1/1)
• Solanaceae (2/3)

Sources of host-range data

Rana et al. (1989).

Purification method

Rana et al. (1989); Gallitelli and Di Franco (1987).

Physical and biochemical properties

Particle morphology

Virions filamentous; usually flexuous; with a clear modal length; of 664 nm; 12 nm wide. Axial canal obscure. Basic helix obvious.

Physical properties

One sedimenting component in purified preparations; sedimentation coefficient 150 S.

Biochemical properties

Genome consists of RNA; single-stranded; linear. Total genome size 6.6 kb. Genome unipartite; largest (or only) genome part 6.6 kb.

Features of the genome

Non-genomic nucleic acid not found in the virions.

Features of proteins

Virion protein(s) one; M_r 29000; coat protein. Method of preparation: Laemmli (1970).

Cytopathology

Virions found in leaves and mesophyll; in cytoplasm, in chloroplasts, and in mitochondria. Inclusions present in infected cells; are crystals in the cytoplasm and membranous bodies; they contain virions.

Taxonomy and relationships

Possible Carlavirus

Virus(es) with serologically related virions

Poplar mosaic virus.

Virus(es) with serologically unrelated virions

Potato S, potato M, carnation latent, elderberry, helleborus, lily symptomless, pea streak, shallot latent, caper latent, nerine latent and chrysanthemum B viruses.

Best tests for diagnosis

Serology.

Comments and References

References

• Gallitelli, D. and Di Franco, A. (1987). J. Phytopath. 119: 97.
• Laemmli, U.K. (1970). Nature, Lond. 227: 680.
• Rana, G.L., Piazzolla, P., Lafortezza, R. and Greco, N. (1989). J. Phytopath. 125: 289.

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.