Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Tulare apple mosaic ilarvirus

Index

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

Data collated by A.A. Brunt, 1992.

Nomenclature

Acronym

TAMV

ICTV decimal code

10.0.2.02.06

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Corylus avellana, Malus sylvestris - conspicuous leaf chlorosis.

Transmission

Virus transmitted by mechanical inoculation; not transmitted by seed.

Geographical distribution

Found, but with no evidence of spread, in France and the U.S.A. (California).

Experimental host range

Several (3-9) families susceptible.

Diagnostically susceptible host species and symptoms

• Nicotiana tabacum - local necrotic lines and rings; systemic necrotic rings and oak-leaf patterns, but later formed leaves are symptomless.
• Phaseolus vulgaris cv. Bountiful - brown local lesions; no systemic infection.

Maintenance and propagation hosts

Catharanthus roseus, Nicotiana tabacum.

Assay hosts (Local lesions or Whole plants)

Phaseolus vulgaris cv. Bountiful (L), Nicotiana tabacum (W).

Susceptible host species

• Catharanthus roseus
• Corylus avellana
• Malus sylvestris
• Nicotiana tabacum
• Phaseolus vulgaris

Families containing susceptible hosts

• Apocynaceae (1/1)
• Corylaceae (1/1)
• Leguminosae-Papilionoideae (1/1)
• Rosaceae (1/1)
• Solanaceae (1/1)

Physical and biochemical properties

Properties of particles in sap

TIP: 62 °C (in sap containing reducing agent). LIV: 0.0069 days.

Purification method

Mink and Bancroft (1962); Mink et al. (1963); Fulton (1967).

Particle morphology

Virions isometric; not enveloped; 33 nm in diameter; rounded in profile.

Physical properties

Three sedimenting components in purified preparations; sedimentation coefficient of the fastest 118 S; of the other(s) 93 and 108 S. A₂₆₀/A₂₈₀ ratio 1.36.

Biochemical properties

Virions contain 12 % nucleic acid; 88 % protein; 0 % lipid.

Genome consists of RNA; single-stranded. Base composition 24 % G; 24 % A; 21 % C; 31 % U.

Features of proteins

Virion protein(s) one; M_r 19000; coat protein. Amino acid composition: Barnett and Fulton (1969).

Taxonomy and relationships

Ilarvirus: Bromoviridae (subgroup 2)

Virus(es) with serologically related virions

Citrus leaf rugose virus.

Comments and References

General comments

The virus has been isolated from a single apple tree (since removed) in Tulare County, California, and later from hazel in France (Cardin and Marenaud, 1975).

References

• Barnett, O.W. and Fulton, R.W. (1969). Virology 39: 556.
• Cardin, L. and Marénaud, C. (1975). Annls. Phytopath. 7: 159.
• Fulton, R.W. (1956). Phytopathology 46: 694.
• Fulton, R.W. (1967). Virology 32: 153.
• Fulton, R.W. (1971). CMI/AAB Descr. Pl. Viruses No. 42, 3 pp.
• Gilmer, R.M. (1958). Phytopathology 48: 432.
• Lister, R.M. and Saksena, K.N. (1976). Virology 70: 440.
• Mink, G.I. (1965). Virology 26: 700.
• Mink, G.I. and Bancroft, J.B. (1962). Nature, Lond. 194: 214.
• Mink, G.I., Bancroft, J.B. and Nadakavukaren, M.J. (1963). Phytopathology 53: 973.
• Uyeda, I. and Mink, G.I. (1983). Phytopathology 73: 47.
• Yarwood, C.E. (1955). Hilgardia 23: 613.

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.