Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Ryegrass mottle (?) sobemovirus

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

ICTV decimal code

67.0.1.T.DE.1

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Dactylis glomerata, Lolium multiflorum - leaf mottling and necrosis.

Geographical distribution

Spreads in Japan.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Dactylis glomerata, Festuca rubra, Avena sativa, Hordeum vulgare, Lolium multiflorum, L. perenne, Setaria italica, Triticum aestivum, Secale cereale - leaf mottling and, with some species, leaf necrosis.

Maintenance and propagation hosts

Lolium multiflorum, Triticum aestivum.

Assay hosts (Local lesions or Whole plants)

Lolium multiflorum (W), Triticum aestivum (W).

Susceptible host species

• Avena sativa
• Dactylis glomerata
• Festuca rubra
• Hordeum vulgare
• Lolium multiflorum
• Lolium perenne
• Secale cereale
• Setaria italica
• Triticum aestivum

Families containing susceptible hosts

• Gramineae (9/9)

Sources of host-range data

Toriyama et al. (1983).

Physical and biochemical properties

Particle morphology

Virions isometric; not enveloped; 28 nm in diameter.

Physical properties

One sedimenting component in purified preparations; sedimentation coefficient 108 S. Density 1.366 g cm^-3 in CsCl.

Biochemical properties

Virions contain 23 % nucleic acid; 77 % 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.

Features of proteins

Virion protein(s) one; M_r 26000; coat protein.

Taxonomy and relationships

Possible Sobemovirus

Virus(es) with serologically unrelated virions

Cocksfoot mild mosaic, cocksfoot mottle and cynosurus mottle viruses.

Comments and References

References

• Toriyama, S., Mikoshiba, Y. and Doi, Y. (1983). Ann. Phytopath. Soc. Japan 49: 610.

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.