Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Fragaria chiloensis (?) ilarvirus

Index

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

Data collated by J.D. Postman, 1994.

Nomenclature

ICTV decimal code

10.0.2.T.DE.3

Host range and symptoms

Natural host range and symptoms

• Fragaria chiloensis and Fragaria sp. - symptomless.

Transmission

Transmitted by means not involving a vector. Virus transmitted by mechanical inoculation; transmitted by grafting; not transmitted by contact between plants; transmitted by seed (30-50% in Fragaria chiloensis).

Geographical distribution

Spreads in Chile.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Chenopodium amaranticolor, C. quinoa, Cucumis sativus - systemic mottle, chlorotic patches and stunting.

Diagnostically insusceptible host species

Datura stramonium, Gomphrena stramonium, Nicotiana (several species) and Phaseolus vulgaris.

Maintenance and propagation hosts

Fragaria spp.

Assay hosts (Local lesions or Whole plants)

Chenopodium quinoa (W).

Susceptible host species

• Chenopodium amaranticolor
• Chenopodium quinoa
• Cucumis sativus
• Fragaria chiloensis

Insusceptible host species

• Datura stramonium
• Gomphrena globosa
• Gomphrena stramonium
• Nicotiana
• Nicotiana benthamiana
• Nicotiana clevelandii
• Nicotiana glutinosa
• Nicotiana rustica
• Nicotiana sylvestris
• Nicotiana tabacum
• Petunia × hybrida
• Phaseolus vulgaris

Families containing susceptible hosts

• Chenopodiaceae (2/2)
• Cucurbitaceae (1/1)
• Rosaceae (1/1)

Families containing insusceptible hosts

• Amaranthaceae (2/2)
• Leguminosae-Papilionoideae (1/1)
• Solanaceae (9/9)

Sources of host-range data

Spiegel et al., 1993.

Physical and biochemical properties

Particle morphology

Virions isometric; 21.4 nm in diameter (18.0 - 24.3 nm); 54.5 nm in length (maximum).

Biochemical properties

Genome consists of RNA; single-stranded; of four parts; largest (or only) genome part 3.7 kb; the 2nd largest 2.65 kb; the 3rd largest 2.6 kb; the 4th largest 1.2 kb.

Features of proteins

Virion protein(s) one; M_r 28000; coat.

Taxonomy and relationships

Possible Ilarvirus: Bromoviridae

Virus(es) with serologically related virions

Asparagus virus 3, lilac ring mottle.

Virus(es) with serologically unrelated virions

Apple mosaic, blueberry shock, citrus leaf rugose, elm mosaic, elm mottle, prune dwarf, prunus necrotic ringspot, spinach latent, tobacco stunt, Tulare apple mosaic.

Best tests for diagnosis

ELISA.

Comments and References

References

• Spiegel, S., Martin, R.R., Leggett, F., ter Borg, M. and Postman, J. (1993). Phytopathology 83: 991.

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.