Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Arracacha latent (?) carlavirus

Index

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

Data collated by S. Phillips, 1986.

Nomenclature

Acronym

ALV.

ICTV decimal code

14.0.T.1.002

Host range and symptoms

Natural host range and symptoms

• Arracacia xanthorrhiza - latent infection.

Transmission

Virus transmitted by mechanical inoculation.

Geographical distribution

Spreads in the South and Central American region; Bolivia and Peru.

Experimental host range

Several (3-9) families susceptible. Experimentally infected plants mostly show local lesions, systemic chlorosis.

Diagnostically susceptible host species and symptoms

• Nicotiana clevelandii - systemic chlorotic vein-banding.
• Gomphrena globosa - red local lesions; not systemic.
• Chenopodium quinoa - chlorotic local lesions; not systemic.
• Nicotiana megalosiphon - symptomless local and systemic infection.

Diagnostically insusceptible host species

Trifolium incarnatum, Vigna unguiculata, Pisum sativum.

Maintenance and propagation hosts

Nicotiana clevelandii.

Assay hosts (Local lesions or Whole plants)

Chenopodium quinoa (L), Nicotiana clevelandii (W).

Susceptible host species

• Arracacia xanthorrhiza
• Chenopodium amaranticolor
• Chenopodium quinoa
• Gomphrena globosa
• Nicotiana clevelandii
• Nicotiana megalosiphon
• Tetragonia tetragonioides

Insusceptible host species

• Brassica campestris ssp. pekinensis
• Cucumis sativus
• Datura stramonium
• Lycopersicon esculentum
• Phaseolus vulgaris
• Pisum sativum
• Trifolium incarnatum
• Vicia faba
• Vigna unguiculata

Families containing susceptible hosts

• Amaranthaceae (1/1)
• Chenopodiaceae (2/2)
• Solanaceae (2/4)
• Tetragoniaceae (1/1)
• Umbelliferae (1/1)

Families containing insusceptible hosts

• Cruciferae (1/1)
• Cucurbitaceae (1/1)
• Leguminosae-Papilionoideae (5/5)
• Solanaceae (2/4)

Physical and biochemical properties

Properties of particles in sap

Leaf sap contains few virions.

Purification method

Extract Nicotiana leaves with 0.5 M KPO₄ + 0.5% (w/v) Na₂SO₃ (pH 8.0), add 5% Triton X-100 and then differentially centrifuge twice.

Particle morphology

Virions filamentous; not enveloped; usually straight; with a clear modal length; of 650 nm. Basic helix obscure.

Replication

Replication does not depend on a helper virus.

Cytopathology

Virions found in all parts of the host plant.

Taxonomy and relationships

Probably Carlavirus

Virus(es) with serologically related virions

Lily symptomless (SDI 3), carnation latent (SDI 4) and chrysanthemum B (SDI 7) viruses.

Virus(es) with serologically unrelated virions

Narcissus latent, potato S, elder carlavirus, red clover vein mosaic and honeysuckle latent viruses.

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.