Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Anthriscus yellows waikavirus

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

AYV

ICTV decimal code

65.0.2.0.002

Host range and symptoms

Natural host range and symptoms

• Anthriscus sylvestris - no conspicuous symptoms.

Transmission

Transmitted by a vector; an insect; Cavariella aegopodii; Aphididae. Transmitted in a semi-persistent manner. Virus can help the vector transmission of another virus (parsnip yellow fleck sequivirus); not transmitted by mechanical inoculation.

Geographical distribution

Spreads in the Eurasian region; the UK.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Anthriscus cerefolium - systemically infected leaves faintly chlorotic, then reddish purple and slightly distorted; plants stunted.
• Coriandrum sativum - slight yellowing of systemically infected leaves; plants stunted.

Diagnostically insusceptible host species

Bupleurum rotundifolium, Daucus carota, Eryngium planum, Pastinaca sativa, Pimpinella anisum, Trinia glauca.

Maintenance and propagation hosts

Anthriscus cerefolium.

Assay hosts (Local lesions or Whole plants)

Anthriscus cerefolium (W).

Susceptible host species

• Anthriscus cerefolium
• Anthriscus sylvestris
• Coriandrum sativum

Insusceptible host species

• Bupleurum rotundifolium
• Daucus carota
• Eryngium planum
• Pastinaca sativa
• Pimpinella anisum
• Trinia glauca

Families containing susceptible hosts

• Umbelliferae (3/9)

Families containing insusceptible hosts

• Umbelliferae (6/9)

Sources of host-range data

Murant and Goold (1968).

Physical and biochemical properties

Properties of particles in sap

LIV: purified virions in 1 mM CaCl₂ or less remain intact for 45 days (at 4ºC). Leaf sap contains few virions.

Purification method

Hemida et al. (1989).

Particle morphology

Virions isometric; not enveloped; 29 nm in diameter; rounded in profile; without a conspicuous capsomere arrangement.

Physical properties

Two sedimenting components in purified preparations. Density 1.52 g cm^-3 in CsCl (B), or 1.27 g cm^-3 in CsCl (T). A₂₆₀/A₂₈₀ ratio 1.83 (B), or 0.73 (T).

Biochemical properties

Virions contain 42 % nucleic acid (B), or 0 % nucleic acid (T); 58 % protein (B), or 100 % protein (T).

Genome consists of RNA; single-stranded. Total genome size 10.6 kb. Genome unipartite; largest (or only) genome part 10.6 kb.

Features of proteins

Virion protein(s) four; M_r of the largest 35000; coat protein. M_r of 2nd largest 28400; coat. M_r of 3rd largest 24300; coat. M_r of 4th largest 22300; coat.

Replication

Acts as helper for another virus; a helper for parsnip yellow fleck sequivirus.

Cytopathology

Virions found in phloem; in cytoplasm. Inclusions absent from infected cells.

Taxonomy and relationships

Waikavirus: Sequiviridae

Virus(es) with serologically unrelated virions

Maize chlorotic dwarf and rice tungro spherical viruses.

Comments and References

References

• Elnager, S. and Murant, A.F. (1976a). Ann. appl. Biol. 84: 153.
• Elnager, S. and Murant, A.F. (1976b). Ann. appl. Biol. 84: 169.
• Hemida, S.K., Murant, A.F. and Duncan, G.H. (1989). Ann. appl. Biol. 114: 71.
• Murant, A.F. and Goold, R.A. (1968). Ann. appl. Biol. 62: 123.
• Murant, A.F. and Roberts, I.M. (1977). Ann. appl. Biol. 85: 403.
• Murant, A.F., Roberts, I.M. and Elnager, S. (1976). J. gen. Virol. 53: 321.

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.