Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Oat chlorotic stunt (?) tombusvirus

Index

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

Data collated by A.A. Brunt, 1995.

Nomenclature

ICTV decimal code

74.0.1.T.DE.1

Host range and symptoms

Natural host range and symptoms

• Avena sativa - pale green to bright yellow leaf streaking, then necrosis and severe stunting, no viable seed produced.

Transmission

Virus transmitted by mechanical inoculation.

Geographical distribution

Spreads in the UK.

Susceptible host species

• Avena sativa

Families containing susceptible hosts

• Gramineae (1/1)

Physical and biochemical properties

Properties of particles in sap

Leaf sap contains many virions.

Particle morphology

Virions isometric; not enveloped; 35 nm in diameter; angular in profile.

Biochemical properties

Genome consists of RNA; single-stranded. Total genome size 4.114 kb. Genomic nucleic acid isolated by Boonham et al. (1995).

Features of proteins

Virion protein(s) one; M_r 48200; coat protein.

Taxonomy and relationships

Possible Tombusvirus: Tombusviridae

Additional comments on relationships

The sequence of the coat protein places this virus closest to the tombusviruses, but the polymerase sequence places it outside the Tombusviridae.

Comments and References

References

• Boonham, N., Henry, C.M. and Wood, K.R. (1995). J. gen. Virol. 76: 2025.
• Catherall, P.L. (1980). Rep. Welsh Pl. Breeding Stn. 1985, p. 132.

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.