Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Turnip rosette sobemovirus

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

TRoV

ICTV decimal code

67.0.1.0.010

Host range and symptoms

Natural host range and symptoms

• Brassica campestris ssp. napus - chlorotic vein-banding and severe stunting.
• Brassica campestris ssp. rapa - necrosis of veins, leaf distortion and severe stunting ("rosetting").

Transmission

Virus transmitted by mechanical inoculation.

Geographical distribution

Spreads in the UK.

Experimental host range

Several (3-9) families susceptible.

Diagnostically susceptible host species and symptoms

Brassica campestris ssp. napus and ssp. rapa - local chlorotic or necrotic lesions; systemic necrosis of veins and petioles, severe stunting.
• Brassica campestris ssp. pekinensis - local necrotic and/or chlorotic lesions; occasional systemic veinal necrosis and leaf distortion.

Diagnostically insusceptible host species

Nicotiana tabacum.

Maintenance and propagation hosts

Brassica campestris ssp. rapa.

Assay hosts (Local lesions or Whole plants)

Brassica campestris ssp. pekinensis (L).

Susceptible host species

• Bauhinia purpurea
• Brassica campestris ssp. napus
• Brassica campestris ssp. pekinensis
• Brassica campestris ssp. rapa
• Nicotiana bigelovii
• Nicotiana clevelandii
• Nicotiana tabacum

Insusceptible host species

• Nicotiana tabacum

Families containing susceptible hosts

• Cruciferae (3/3)
• Leguminosae-Caesalpinioideae (1/1)
• Solanaceae (3/3)

Families containing insusceptible hosts

• Solanaceae (1/3)

Sources of host-range data

Hollings and Stone 1969.

Physical and biochemical properties

Properties of particles in sap

TIP: 90 °C. LIV: more than 30 days. DEP: log₁₀ minus 5-6.

Purification method

Hollings and Stone (1969, 1973).

Particle morphology

Virions isometric; not enveloped; 28 nm in diameter.

Physical properties

One sedimenting component in purified preparations; sedimentation coefficient 112 S. A₂₆₀/A₂₈₀ ratio 1.56.

Biochemical properties

Genome consists of RNA; single-stranded. Base composition 25 % G; 26 % A; 22 % C; 27 % U.

Features of proteins

Virion protein(s) one; M_r 27700; coat protein.

Cytopathology

Inclusions absent from infected cells.

Taxonomy and relationships

Sobemovirus

Virus(es) with serologically unrelated virions

27 viruses with isometric virions.

Comments and References

References

• Blencowe, J.W. and Broadbent, L. (1957). Rep. Rothamsted exp. Stn. 1956, p.105.
• Broadbent, L. and Heathcote, G. (1958). Ann. appl. Biol. 46: 585.
• Hollings, M. and Stone, O.M. (1969). Zbl. Bakt. ParasitKde. Abt 2, 123: 237.
• Hollings, M. and Stone, O.M. (1973). C.M.I./A.A.B. Descr. Pl. Viruses No. 125, 3pp.
• Lister, R.M. (1958). Pl. Path. 7: 1958.
• Martini, C. (1958). Proc. 3rd Conf. Potato Virus Dis. Lisse-Wageningen 1957, p. 106.

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.