Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Ononis yellow mosaic tymovirus

Index

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

Data collated by A.J. Gibbs, 1982. Revised 1985.

Nomenclature

Acronym

OYMV

ICTV decimal code

77.0.1.0.015

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Ononis repens - systemic yellow mosaic, mottling.

Transmission

Transmitted by means not involving a vector. Virus transmitted by mechanical inoculation; not transmitted by grafting; not transmitted by seed; not transmitted by pollen.

Geographical distribution

Spreads in the UK.

Experimental host range

Several (3-9) families susceptible.

Diagnostically susceptible host species and symptoms

• Pisum sativum - system mosaic, stunting.
• Trifolium incarnatum - systemic mosaic.
• Datura stramonium - chlorotic local lesions, not systemic.
• Nicotiana clevelandii - chlorotic local lesions, then systemic mottle.

Diagnostically insusceptible host species

Chenopodium quinoa, Phaseolus vulgaris, Vicia faba, Nicotiana glutinosa.

Maintenance and propagation hosts

Pisum sativum.

Assay hosts (Local lesions or Whole plants)

Pisum sativum (W), Trifolium incarnatum (W). No local lesion host known.

Susceptible host species

• Datura stramonium
• Glycine max
• Lycopersicon esculentum (cv. Kondine Red)
• Nicotiana clevelandii
• Ononis repens
• Pisum sativum
• Trifolium incarnatum
• Trifolium repens

Insusceptible host species

• Catharanthus roseus
• Chenopodium amaranticolor
• Chenopodium foetidum
• Chenopodium quinoa
• Cucumis sativus
• Cucurbita pepo
• Daucus carota
• Gomphrena globosa
• Hordeum vulgare
• Medicago sativa
• Nicotiana debneyi
• Nicotiana glutinosa
• Nicotiana rustica
• Nicotiana tabacum
• Pastinaca sativa
• Petunia × hybrida
• Phaseolus vulgaris
• Triticum aestivum
• Vicia faba
• Vigna unguiculata

Families containing susceptible hosts

• Leguminosae-Papilionoideae (5/9)
• Solanaceae (3/8)

Families containing insusceptible hosts

• Amaranthaceae (1/1)
• Apocynaceae (1/1)
• Chenopodiaceae (3/3)
• Cucurbitaceae (2/2)
• Gramineae (2/2)
• Leguminosae-Papilionoideae (4/9)
• Solanaceae (5/8)
• Umbelliferae (2/2)

Sources of host-range data

Gibbs et al. (1966).

Physical and biochemical properties

Properties of particles in sap

TIP: 65-70 °C. LIV: 14 days. DEP: log₁₀ minus 3-5. Infectivity of sap not changed by treatment with di-ethyl ether. Leaf sap contains many virions.

Purification method

Gibbs et al. (1966).

Particle morphology

Virions isometric; not enveloped; 25-30 nm in diameter; rounded in profile; with a conspicuous capsomere arrangement.

Physical properties

Two sedimenting components in purified preparations; sedimentation coefficient of the fastest 114 S; of the other(s) 56 S. Isoelectric point pH 3.84.

Biochemical properties

Virions contain 34 % nucleic acid; 66 % protein; 0 % lipid.

Genome consists of RNA; single-stranded. Base composition 15.6 % G; 21 % A; 34.2 % C; 29.4 % U. Nucleotide sequence references: Ding et al. (1990).

NCBI sequence data (Entrez search)

Sequence database accession code(s)

• J04375 Em(40)_vi:MTYCG Gb(84)_vi:OYMCG Ononis yellow mosaic virus complete genome. 6/90 6,211bp.
• M15287 Em(40)_vi:TYMTY3OY Gb(84)_vi:OYM3OYMV Ononis yellow mosaic virus 3´ end which can form tRNA-like structure. 11/90 131bp.
• M58312 Em(40)_vi:OYMRRLS Gb(84)_vi:OYMRRLS Ononis yellow mosaic virus 3´ terminus tRNA-like structure. 8/91 84bp. 3 sequences.

Features of proteins

Virion protein(s) one.

Replication

Replication does not depend on a helper virus.

Cytopathology

Virions found in all parts of the host plant; in cytoplasm.

Taxonomy and relationships

Tymovirus

Virus(es) with serologically related virions

Scrophularia mottle is closely related; belladonna mottle and dulcamara mottle more distantly related; eggplant mosaic, Andean potato latent, wild cucumber mosaic and clitoria yellow vein viruses are very distantly related.

Comments and References

References

• Ding, S., Keese, P. and Gibbs, A.J. (1990). J. gen. Virol. 71: 925.
• Gibbs, A.J., Hecht-Poinar, E., Woods, R.D. and McKee, R.K. (1966). Ann. appl. Biol. 58: 231.

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.