Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Zygocactus (?) potexvirus

Index

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

Data collated by A.A. Brunt, 1987 and R. Casper, 1987.

Nomenclature

Acronym

ZV

ICTV decimal code

56.0.1.T.021

Host range and symptoms

Natural host range and symptoms

• Zygocactus × Schlumbergera - symptomless.

Transmission

Virus transmitted by mechanical inoculation.

Geographical distribution

Spreads in the Eurasian region (but is probably more widespread).

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Chenopodium quinoa - slight systemic leaf curling.
• Nicotiana glutinosa - systemic light green spotting leaves.
• N. clevelandii, Solanum demissum - symptomless systemic infection.

Maintenance and propagation hosts

Nicotiana glutinosa, N. clevelandii.

Assay hosts (Local lesions or Whole plants)

Nicotiana glutinosa (W).

Susceptible host species

• Chenopodium quinoa
• Nicotiana clevelandii
• Nicotiana glutinosa
• Solanum demissum
• Zygocactus × Schlumbergera

Families containing susceptible hosts

• Cactaceae (1/1)
• Chenopodiaceae (1/1)
• Solanaceae (3/3)

Sources of host-range data

Casper and Brandes (1969).

Physical and biochemical properties

Properties of particles in sap

TIP: 72-74 °C. Leaf sap contains few virions.

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 580 nm. Axial canal obscure. Basic helix obscure.

Taxonomy and relationships

Possible Potexvirus

Virus(es) with serologically unrelated virions

Cactus X, potato X, potato aucuba and zygocactus X viruses.

Comments and References

References

• Casper, R. and Brandes, J. (1969). J. gen. Virol. 5: 155.

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.