Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Euphorbia ringspot potyvirus

Index

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

Data collated by D.-E. Lesemann, 1991.

Nomenclature

Acronym

EuRV

ICTV decimal code

57.0.1.T.036

Host range and symptoms

Natural host range and symptoms

Symptoms persist. Symptoms chlorotic spots, leaf and flower malformation.
• Euphorbia milii × E. lophogona - ringshaped chlorotic spots, leaf and flower deformations.
• Euphorbia loricata - ringspots, malformation.

Transmission

Transmitted by a vector; an insect; Myzus persicae; Aphididae. Transmitted in a non-persistent manner. Virus transmitted by mechanical inoculation; transmitted by grafting.

Geographical distribution

Found, but with no evidence of spread, in Germany and Denmark.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Euphorbia milii × E. lophogona - chlorotic spots, leaf and flower malformation.
• Chenopodium quinoa Danish isolate - local white rings, not systemic.
• Euphorbia milii - chlorotic ringspots.

Diagnostically insusceptible host species

Datura stramonium, Gomphrena globosa, Nicotiana clevelandii, N. glutinosa, Tetragonia tetragonioides.

Maintenance and propagation hosts

Euphorbia milii, E. milii × E. lophogona.

Susceptible host species

• Chenopodium quinoa
• Euphorbia loricata
• Euphorbia milii
• Euphorbia milii × E. lophogona

Insusceptible host species

• Datura stramonium
• Gomphrena globosa
• Nicotiana clevelandii
• Nicotiana glutinosa
• Tetragonia tetragonioides

Families containing susceptible hosts

• Chenopodiaceae (1/1)
• Euphorbiaceae (3/3)

Families containing insusceptible hosts

• Amaranthaceae (1/1)
• Solanaceae (3/3)
• Tetragoniaceae (1/1)

Physical and biochemical properties

Properties of particles in sap

Leaf sap contains few virions.

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 750 nm. Axial canal obscure. Basic helix obscure.

Cytopathology

Virions found in leaves and epidermis; in cytoplasm. Inclusions present in infected cells; are pinwheels.

Taxonomy and relationships

Potyvirus: Potyviridae

Comments and References

References

• Bode, O. and Lesemann, D.-E. (1976). Acta Hort. 59: 161.
• Paludan, N. (1981). Rep. National Inst. Pl. Path. Denmark 528: 74.

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.