Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Wheat streak mosaic rymovirus

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

Acronym

WSMV

Strains

Several variants giving different symptoms have been described.

ICTV decimal code

57.0.2.0.006

Host range and symptoms

Natural host range and symptoms

• Echinochloa, Panicum, Setaria spp. - usually severe mosaic.
• Triticum aestivum - severe leaf mosaic, necrosis of tillers, stunting and crop loss.
• Zea mays - mild mosaic (some cultivars only).

Transmission

Transmitted by a vector; a mite; Aceria tulipae; Eriophyidae. Virus not transmitted congenitally to the progeny of the vector; transmitted by mechanical inoculation; not transmitted by contact between plants; transmitted by seed (very low levels).

Ecology and control

Studies reported by Slykhuis (1955); Ashworth and Futrell (1961); Orlob (1966); Nault and Styer (1969).

Geographical distribution

Spreads in Canada, Jordan, Romania, and the USA.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Avena sativa, Hordeum vulgare, Poa compressa, Secale cereale, Triticum aestivum, Zea mays (some cultivars) - systemic mosaic.

Diagnostically insusceptible host species

Elytrigia repens, Bromus inermis, Hordeum jubatum, Saccharum officinarum, Sorghum bicolor.

Maintenance and propagation hosts

Triticum aestivum (especially cvs Michigan, Amber and Kent).

Assay hosts (Local lesions or Whole plants)

Triticum aestivum (W).

Susceptible host species

• Aegilops
• Agropyron
• Avena sativa
• Bromus
• Digitaria
• Echinochloa
• Eragrostis
• Hordeum
• Hordeum vulgare
• Lolium
• Panicum
• Phalaris
• Poa
• Poa compressa
• Secale cereale
• Setaria
• Stipa
• Triticum aestivum
• Zea mays

Insusceptible host species

• Bromus inermis
• Elytrigia repens
• Hordeum jubatum
• Saccharum officinarum
• Sorghum bicolor

Families containing susceptible hosts

• Gramineae (19/24)

Families containing insusceptible hosts

• Gramineae (5/24)

Physical and biochemical properties

Properties of particles in sap

TIP: 54 °C. LIV: 4-8 days (at 20ºC, 1-2 months at 2ºC, and at least 16 years in dried leaf at 2ºC). DEP: log₁₀ minus 3-4.

Purification method

Brakke and Ball (1968).

Particle morphology

Virions filamentous; with a clear modal length; of 700 nm.

Physical properties

One sedimenting component in purified preparations; sedimentation coefficient c. 165 S. A₂₆₀/A₂₈₀ ratio 1.37.

Biochemical properties

Genome consists of RNA; single-stranded. Total genome size 8.5 kb. Genome unipartite; largest (or only) genome part 8.5 kb. Genomic nucleic acid isolated by Zagula et al. (1992). Nucleotide sequence references: Niblett et al. (1991); Zagula et al. (1992).

NCBI sequence data (Entrez search)

Features of proteins

Virion protein(s) one; M_r 47000; coat protein.

Cytopathology

Virions found in cytoplasm. Inclusions present in infected cells; are pinwheels.

Taxonomy and relationships

Rymovirus: Potyviridae

Virus(es) with serologically related virions

Ryegrass mosaic, agropyron mosaic and oat necrotic mottle viruses.

Comments and References

References

• Ashworth, L.J. and Futrell, M.C. (1961). Pl. Dis. Reptr. 45: 220.
• Brakke, M.K. (1971). CMI/AAB Descr. Pl. Viruses No. 48, 4 pp.
• Brakke, M.K. and Ball, E.M. (1968). Virology 36: 152.
• Brakke, M.K., Ball, E.M., Hsu, Y.-H. and Langenberg, W.G. (1987). J. gen. Virol. 68: 281.
• Brakke, M.K., Skopp, R.N. and Lane, L.C. (1990). Phytopathology 80: 1401.
• Hill, J.H., Martinson, C.A. and Russell, W.A. (1974). Crop Sci. 67: 1161.
• Langenberg, W.G. (1986) J. gen. Virol. 67: 1161.
• Langenberg, W.G. (1988) Phytopathology 78: 589.
• Langenberg, W.G. (1989) J. gen. Virol. 70: 969.
• Langenberg, W.G. (1991) J. gen. Virol. 72: 493.
• Langenberg, W.G. and Schroeder, H.F. (1973) Virology 55: 218.
• McKinney, H.H. (1973). Circ. U.S. Dep. Agric. 442, 23 pp.
• McMullen, M.D. and Louie, R. (1991). Phytopathology 81: 624.
• Nault, I.R. and Styer, W.E. (1969). Ann. Ent. Soc. Amer. 62: 1446.
• Niblett, C.L., Zagula, K.R. Calvert, L.A., Kendall, T.L., Stark, D.M., Smith, C.E., Beachy, R.N. and Lommel, S.A. (1991). J. gen. Virol. 72: 499.
• Orlob, G.B. (1966). Phytopath. Z. 55 218.
• Pfannenstiel, M.A. and Niblett, C.L. (1978). Phytopathology 68: 1204.
• Shahwan, J.M. and Hill, J.P. (1984). Plant Dis. 68: 579.
• Slykhuis, J.T. (1955). Phytopathology 45: 116.
• Slykhuis, J.T. (1955). Rev. Appl. Mycol. 46: 401.
• Slykhuis, J.T. and Bell, W. (1955). Can. J. Bot. 44: 1191.
• Zagula, K.R., Niblett, C.L., Robertson, N.L., French, R. and Lommel, S.A. (1992). Arch. Virol., Suppl. 5: 269.

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.