Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Subterranean clover mottle sobemovirus

Index

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

Data collated by R.I.B. Francki, 1983. Revised 1987.

Nomenclature

Synonyms

subterranean clover virus.

Acronym

SCMoV

ICTV decimal code

67.0.1.0.009

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Trifolium subterraneum - systemic mosaic, stunting.

Transmission

Virus transmitted by mechanical inoculation; transmitted by seed.

Geographical distribution

Spreads in Australia.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Pisum sativum - necrotic local lesions; No systemic infection.
• Trifolium subterraneum - systemic mosaic, stunting.

Diagnostically insusceptible host species

Chenopodium amaranticolor, C. quinoa, Nicotiana clevelandii.

Maintenance and propagation hosts

Trifolium subterraneum.

Assay hosts (Local lesions or Whole plants)

Pisum sativum (L).

Susceptible host species

• Pisum sativum
• Trifolium subterraneum

Insusceptible host species

• Chenopodium amaranticolor
• Chenopodium quinoa
• Nicotiana clevelandii

Families containing susceptible hosts

• Leguminosae-Papilionoideae (2/2)

Families containing insusceptible hosts

• Chenopodiaceae (2/2)
• Solanaceae (1/1)

Sources of host-range data

Francki et al. (1983).

Purification method

Francki et al. (1983).

Physical and biochemical properties

Particle morphology

Virions isometric; not enveloped; 30 nm in diameter; angular in profile; without a conspicuous capsomere arrangement.

Physical properties

One sedimenting component in purified preparations; sedimentation coefficient 115 S.

Biochemical properties

Virions contain c. 20 % nucleic acid; c. 80 % protein; 0 % lipid.

Genome consists of RNA; single-stranded. Total genome size 4.2 kb. Genome unipartite; largest (or only) genome part 4.2 kb.

NCBI sequence data (Entrez search)

Sequence database accession code(s)

• M33000 Em(40)_vi:SUVSATA Gb(84)_vi:SUVSATA Subterranean clover mottle virus satellite RNA (virusoid) sequence. 7/90 332bp.
• M33001 Em(40)_vi:SUVSATB Gb(84)_vi:SUVSATB Subterranean clover mottle virus satellite RNA (virusoid) sequence. 7/90 388bp. 2 sequences.

Features of the genome

Non-genomic nucleic acid found in the virions; is of an unusual type of structure; satellite RNA.

Features of proteins

Virion protein(s) one; M_r 29000; coat protein.

Cytopathology

Virions found in leaves and all parts of the host plant; in nuclei. Inclusions present in infected cells; are unusual in shape; aggregates; they contain virions.

Taxonomy and relationships

Sobemovirus

Virus(es) with serologically related virions

Lucerne transient streak virus, but distantly.

Virus(es) with serologically unrelated virions

Velvet tobacco mottle, solanum nodiflorum mottle, southern bean mosaic and sowbane mosaic viruses.

Comments and References

References

• Francki, R.I.B., Randles, J.W. and Graddon, D. (1987). CMI/AAB Descr. Pl. Viruses No. 329.
• Francki, R.I.B., Randles, J.W., Hatta, T., Davies, C., Chu, P.W.G. and McLean, G.D. (1983). Pl. Path. 32: 47.
• Graddon, D. and Randles, J.W. (1986). J. virol. Meth. 13: 63.

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.