Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Artichoke curly dwarf (?) potexvirus

Index

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

Data collated by A.A. Brunt, 1995.

Nomenclature

Acronym

ACDV

ICTV decimal code

56.0.1.T.001

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Cynara scolymus - veinal necrosis, leaf distortion and stunting.

Transmission

Virus transmitted by mechanical inoculation.

Geographical distribution

Spreads in the North American region; the USA.

Experimental host range

Few (<3) families susceptible. Experimentally infected plants mostly show Leaf distortion and stunting.

Diagnostically susceptible host species and symptoms

• Callistephus chinensis, Helichrysum bracteatum - chlorotic local lesions, systemic leaf distortion.
• Centaurea cyanus, Cynara cardunculus, C. scolymus - systemic veinal necrosis, leaf distortion and stunting.
• Helianthus annuus - chlorotic local lesions, symptomless systemic infection.
• Tagetes - symptomless local and systemic infection.
• Zinnia elegans - necrotic local lesions, systemic veinal necrosis, leaf distortion and stunting.

Diagnostically insusceptible host species

Calendula officinalis, Cichorium endiva, Cosmos bipinnatus, Lactuca sativa, Taraxacum officinale.

Assay hosts (Local lesions or Whole plants)

Zinnia elegans (L).

Susceptible host species

• Callistephus chinensis
• Centaurea cyanus
• Cynara cardunculus
• Cynara scolymus
• Helianthus annuus
• Helichrysum bracteatum
• Tagetes
• Zinnia elegans

Insusceptible host species

• Calendula officinalis
• Chrysanthemum morifolium
• Cichorium endiva
• Cosmos bipinnatus
• Lactuca sativa
• Taraxacum officinale

Families containing susceptible hosts

• Compositae (8/14)

Families containing insusceptible hosts

• Compositae (6/14)

Comments on host-range

The virus seems only to infect species of the Asteraceae; it failed to infect unnamed species in 18 other families.

Sources of host-range data

Leach and Oswald (1950), Morton (1961).

Physical and biochemical properties

Properties of particles in sap

TIP: 55-60 °C. LIV: 2-3 days (at 19^oC). DEP: log₁₀ minus 3-4.

Particle morphology

Virions filamentous; not enveloped; with a clear modal length; of 582 nm.

Taxonomy and relationships

Possible Potexvirus

Comments and References

General comments

Although first reported in 1950, the virus was probably present in California two or more decades earlier (Morton, 1961).

References

• Leach, L.D. and Oswald, J.W. (1950). Phytopathology 40: 967.
• Morton, D.J. (1961). Phytopathology 51: 731.

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.