Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Ivy vein clearing (?) cytorhabdovirus

Index

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

Data collated by A.A. Brunt, 1991.

Nomenclature

Acronym

IVCV

ICTV decimal code

62.U.P.0.023

Host range and symptoms

Natural host range and symptoms

Symptoms vary seasonally.
• Hedera helix - transitory chlorosis of leaf veins, some chlorotic blotching in spring.

Transmission

Virus transmitted by mechanical inoculation.

Geographical distribution

Spreads in Italy.

Experimental host range

Several (3-9) families susceptible.

Diagnostically susceptible host species and symptoms

• Gomphrena globosa, Nicotiana benthamiana - chlorotic or necrotic local lesions; transitory systemic vein clearing.
• Nicotiana clevelandii, N. tabacum cv. Xanthi - systemic ringspots.
• Nicotiana glutinosa, N. megalosiphon - systemic vein clearing.
• Datura stramonium - ring-like local lesions; not systemic.

Diagnostically insusceptible host species

Chenopodium quinoa, Cucumis sativus, Nicotiana rustica, N. tabacum, Solanum melongena.

Maintenance and propagation hosts

Nicotiana benthamiana, N. clevelandii.

Assay hosts (Local lesions or Whole plants)

Gomphrena globosa (L/W), Nicotiana benthamiana (W), N. clevelandii (W).

Susceptible host species

• Datura stramonium
• Gomphrena globosa
• Hedera helix
• Nicotiana benthamiana
• Nicotiana clevelandii
• Nicotiana glutinosa
• Nicotiana megalosiphon
• Nicotiana tabacum (cv. Xanthi)

Insusceptible host species

• Chenopodium quinoa
• Cucumis sativus
• Nicotiana rustica
• Nicotiana tabacum
• Solanum melongena

Families containing susceptible hosts

• Amaranthaceae (1/1)
• Araliaceae (1/1)
• Solanaceae (6/8)

Families containing insusceptible hosts

• Chenopodiaceae (1/1)
• Cucurbitaceae (1/1)
• Solanaceae (3/8)

Physical and biochemical properties

Properties of particles in sap

TIP: 50 °C. LIV: 0.25 days (6-9 hours). DEP: log₁₀ minus 5. Leaf sap contains few virions.

Particle morphology

Virions rhabdo- or bullet-shaped; usually straight; of 100-200 nm (in sap), or 180-320 nm (in vivo); 60-70 nm wide (in sap), or 45-50 nm wide (in vivo).

Cytopathology

Virions found in mesophyll, vascular parenchyma and the phloem; in cytoplasm.

Taxonomy and relationships

Possible Cytorhabdovirus: Rhabdoviridae

Comments and References

References

• Castellano, M.A. and Rana, G.L. (1981). Phytopathol. Medit. 20: 199.
• Russo, M., Castellano, M.A. and Martelli, G.P. (1979). Phytopath. Z. 96: 122.

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.