Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Clitoria yellow vein tymovirus

Index

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

Data collated by K. Bock, 1980. Revised 1983.

Nomenclature

Acronym

CYVV

ICTV decimal code

77.0.1.0.004

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Abrus precatorius - mottle.
• Clitoria ternatea - systemic vein chlorosis.

Transmission

Virus transmitted by mechanical inoculation; not transmitted by seed.

Geographical distribution

Spreads in Kenya.

Experimental host range

Several (3-9) families susceptible. Experimentally infected plants mostly show necrotic or chlorotic local lesions, systemic vein chlorosis or mosaic.

Diagnostically susceptible host species and symptoms

• Bauhinia purpurea, Cajanus cajan - vein netting.
• Clitoria ternatea - systemic mosaic and vein netting.
• Glycine max - systemic vein netting, chlorosis.
• Phaseolus vulgaris cv. Long Tom - necrotic or chlorotic local lesions, systemic vein netting.
• Vigna radiata - necrotic local lesions.
• V. unguiculata - systemic mottle.
• Vigna subterranea - systemic mottle.
• Datura metel - systemic vein netting.
• Nicotiana clevelandii - systemic vein netting.

Maintenance and propagation hosts

Nicotiana clevelandii.

Assay hosts (Local lesions or Whole plants)

Glycine max, Phaseolus vulgaris, Datura metel, Nicotiana clevelandii.

Susceptible host species

• Abelmoschus esculentus
• Abrus precatorius
• Arachis hypogaea
• Bauhinia purpurea
• Cajanus cajan
• Cassia occidentalis
• Cicer arietinum
• Clitoria ternatea
• Datura metel
• Desmodium tortuosum
• Glycine max
• Nicotiana clevelandii
• Phaseolus vulgaris
• Pisum sativum
• Solanum nigrum
• Vigna angularis
• Vigna radiata
• Vigna subterranea
• Vigna unguiculata

Insusceptible host species

• Adansonia digitata
• Beta vulgaris
• Cajanus cajan
• Capsicum annuum
• Capsicum frutescens
• Ceiba pentandra
• Chenopodium amaranticolor
• Chenopodium quinoa
• Citrullus lanatus
• Crotalaria spectabilis
• Cucumis melo
• Cucumis sativus
• Cucurbita maxima
• Cucurbita pepo
• Datura ferox
• Datura stramonium
• Glycine max
• Gomphrena globosa
• Gossypium hirsutum
• Ipomoea setosa
• Lycopersicon esculentum
• Macroptilium lathyroides
• Medicago sativa
• Melilotus albus
• Nicandra physalodes
• Nicotiana glutinosa
• Nicotiana tabacum
• Petunia × hybrida
• Phaseolus lunatus
• Physalis floridana
• Solanum melongena
• Spinacia oleracea
• Theobroma cacao
• Trifolium repens
• Trifolium subterraneum
• Vicia faba

Families containing susceptible hosts

• Leguminosae-Caesalpinioideae (2/2)
• Leguminosae-Papilionoideae (13/21)
• Malvaceae (1/2)
• Solanaceae (3/14)

Families containing insusceptible hosts

• Amaranthaceae (1/1)
• Bombacaceae (2/2)
• Chenopodiaceae (4/4)
• Convolvulaceae (1/1)
• Cucurbitaceae (5/5)
• Leguminosae-Papilionoideae (10/21)
• Malvaceae (1/2)
• Solanaceae (11/14)
• Sterculiaceae (1 /1)

Sources of host-range data

Bock et al. (1977a; 1977b).

Physical and biochemical properties

Properties of particles in sap

TIP: 72 °C. LIV: 21 days. DEP: log₁₀ minus 8. Leaf sap contains many virions.

Purification method

Bock et al. (1977a).

Particle morphology

Virions isometric; not enveloped; 28 nm in diameter; rounded in profile; with a conspicuous capsomere arrangement.

Physical properties

Two sedimenting components in purified preparations; sedimentation coefficient of the fastest 109 S; of the other(s) 50 S. A₂₆₀/A₂₈₀ ratio 1.69 (B; uncorrected).

Biochemical properties

Virions contain 37 % nucleic acid.

Genome consists of RNA; single-stranded.

NCBI sequence data (Entrez search)

Sequence database accession code(s)

• M15963 Em(40)_vi:TYMTY3CY Gb(84)_vi:CYE3CYVV Clitoria yellow vein virus 3´ end which can form tRNA-like structure. 11/90 120bp.
• M58311 Em(40)_vi:CYERRLT Gb(84)_vi:CYERRLT Clitoria yellow vein virus (CYVV) 3´ terminus tRNA-like structure. 8/91 83bp. 2 sequences.

Features of proteins

Virion protein(s) one; M_r 19429. Method of preparation: Bock et al. (1977a). Amino acid sequence: from the VP gene; (A.M. Mackenzie, pers. comm.).

Taxonomy and relationships

Tymovirus

Comments and References

References

• Bock, K.R., Guthrie, E.J. and Meredith, G. (1977a). Ann. appl. Biol. 85: 97.
• Bock, K.R. and Guthrie, E.J. (1977b). CMI/AAB Descr. Pl. Viruses No. 171, 3 pp.
• Koenig, R. (1976). Virology 72: 1.

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.