Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Dandelion latent carlavirus

Index

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

Data collated by R. Stace-Smith, 1991.

Nomenclature

Acronym

DaLV

Strains

dandelion carlavirus, possibly (Dijkstra et al., 1985).

ICTV decimal code

14.0.1.0.008

Host range and symptoms

Natural host range and symptoms

Symptoms none.
• Taraxacum officinale.

Transmission

Transmitted by probably a vector; probably an insect; Myzus persicae transmits in experiments; the natural vector is unknown; Aphididae. Transmitted in a non-persistent manner. Virus transmitted by mechanical inoculation; transmitted by grafting; not transmitted by contact between plants; not transmitted by seed; not transmitted by pollen.

Geographical distribution

Spreads in Canada.

Experimental host range

Few (<3) families susceptible. Experimentally infected plants mostly show chlorotic local lesions and systemic mottle.

Diagnostically susceptible host species and symptoms

• Chenopodium quinoa, C. amaranticolor - chlorotic local lesions, systemic mottle.
• Gomphrena globosa - local lesions; no systemic symptoms.

Diagnostically insusceptible host species

Cucumis sativus, Nicotiana tabacum, Lycopersicon esculentum, Vigna unguiculata ssp. unguiculata.

Maintenance and propagation hosts

Chenopodium quinoa.

Assay hosts (Local lesions or Whole plants)

Chenopodium quinoa (L).

Susceptible host species

• Chenopodium amaranticolor
• Chenopodium quinoa
• Gomphrena globosa
• Taraxacum officinale

Insusceptible host species

• Brassica juncea
• Capsicum frutescens
• Cucumis sativus
• Datura stramonium
• Helianthus annuus
• Lycopersicon esculentum
• Nicotiana debneyi
• Nicotiana glutinosa
• Nicotiana tabacum
• Phaseolus vulgaris
• Pisum sativum
• Solanum tuberosum
• Verbesina encelioides
• Vicia faba
• Vigna unguiculata
• Vigna unguiculata ssp. unguiculata

Families containing susceptible hosts

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

Families containing insusceptible hosts

• Compositae (2/3)
• Cruciferae (1/1)
• Cucurbitaceae (1/1)
• Leguminosae-Papilionoideae (5/5)
• Solanaceae (7/7)

Sources of host-range data

John (1982).

Physical and biochemical properties

Properties of particles in sap

TIP: 75-80 °C. LIV: 5 days (at 23ºC). DEP: log₁₀ minus 5-5. Leaf sap contains many virions.

Purification method

John (1982).

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 640 nm; 12-13 nm wide. Axial canal obvious. Basic helix obscure.

Physical properties

One sedimenting component in purified preparations. A₂₆₀/A₂₈₀ ratio 1.4.

Biochemical properties

Virions contain 2.5 % nucleic acid.

Genome consists of RNA; single-stranded.

Cytopathology

Virions found in leaves.

Taxonomy and relationships

Carlavirus

Virus(es) with serologically related virions

Potato S, helenium S, chrysanthemum B and narcissus latent viruses.

Virus(es) with serologically unrelated virions

Carnation latent, pea streak, poplar mosaic, potato M and red clover vein mosaic viruses.

Comments and References

General comments

A latent virus of dandelion in the Netherlands is possibly a strain of this virus (Milne, 1988).

References

• Dijkstra, J., Clement, Y. and Lohuis, H. (1985). Neth. J. Pl. Path. 91: 77
• John, L.J. (1982). Phytopathology 72: 1239.
• Milne, R.G. (1988). in The Plant Viruses, Vol.3; The Filamentous Viruses, p.11; ed. R.G. Milne. Plenum, New York.

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.