Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Citrus variegation ilarvirus

Index

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

Data collated by P. Barkley, 1987. Checked by R.F. Lee, 1989.

Nomenclature

Synonyms

citrus psorosis virus complex - infectious variegation component.

Acronym

CVV

Strains

CVV-I, CVV-II.

ICTV decimal code

10.0.2.02.04

Host range and symptoms

Natural host range and symptoms

Symptoms persist and vary seasonally (with growth flushes).
• Citrus aurantifolia, C. limon and other species - malformation and young-leaf flecking (psorosis): more severe in sour orange and lemon.

Transmission

Virus transmitted by mechanical inoculation; transmitted by grafting; possibly transmitted by seed.

Ecology and control

Studies reported by Wallace (1978).

Geographical distribution

Probably distributed worldwide (occurs in most citrus growing countries, but is not common). Spreads in Australia and the USA.

Experimental host range

Several (3-9) families susceptible.

Diagnostically susceptible host species and symptoms

• Citrus aurantifolia, C. limon cv. Eureka - leaf flecking, mosaic and malformation.

Maintenance and propagation hosts

any Citrus species.

Assay hosts (Local lesions or Whole plants)

Vigna unguiculata (W), Capsicum frutescens var. grossum (W).

Susceptible host species

• Capsicum frutescens
• Capsicum frutescens var. grossum
• Citrus aurantifolia
• Citrus aurantium
• Citrus limon
• Vigna unguiculata

Families containing susceptible hosts

• Leguminosae-Papilionoideae (1/1)
• Rutaceae (3/3)
• Solanaceae (2/2)

Physical and biochemical properties

Particle morphology

Virions unusually shaped; irregularly isometric; 26-35 nm in diameter.

NCBI sequence data (Entrez search)

Sequence database accession code(s)

• U17389 Em(43)_vi:Cv17389 Gb(89)_vi:Cvu17389 Citrus variegation virus RNA 3 movement protein and coat protein genes, complete cds. 5/95 2.

Taxonomy and relationships

Ilarvirus: Bromoviridae (subgroup 2)

Virus(es) with serologically related virions

Citrus leaf rugose virus (but distinct).

Comments and References

References

• Calvert, L.A., Lee, R.F. and Hiebert, E. (1987). Proc. 10th Conf. Int. Org. Citrus Virol., p. 114.
• Corbett, M.K. and Grant, T.J. (1967). Phytopathology 57: 137.
• Davino, M. and Garnsey, S.M. (1980). Proc. 9th Conf. Int. Org. Citrus Virol., p. 196.
• Desjardins, P.R. and French, J.V. (1970). Virology 40: 746.
• Fawcett, H.S. and Klotz, L.J. (1939). Phytopathology 29: 911.
• Garnsey, S.M. (1974). Proc. 6th Conf. Int. Org. Citrus Virol., p. 169.
• Gonsalves, D. and Garnsey, S.M. (1976). Proc. 7th Conf. Int. Org. Citrus Virol., p. 109.
• Rana, G.L., Quacquarelli, A. and Martelli, G.P. (1974). Proc. 6th Crop Protect. Conf. Int. Org. Citrus Virol., p.165.
• Wallace, J.M. (1978). In: Citrus Industry Vol. 4, p. 72.

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.