Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Black raspberry necrosis virus

Index

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

Data collated by R. Stace-Smith, 1991.

Nomenclature

Synonyms

black raspberry mild mosaic virus, raspberry black necrosis virus.

Acronym

BRNV

ICTV decimal code

79.0.P.DE.06

Host range and symptoms

Natural host range and symptoms

Symptoms disappear soon after infection and none. Symptoms mild leaf mottle.
• Rubus idaeus, R. fruticosus, R. procerus, R. ursinus, R. lasiocarpus, R. phoenicolasius, R. loganobaccus - symptomless.
• R. occidentalis - stem necrosis, leaf mottle.
• R. henryi - stem necrosis.

Transmission

Transmitted by a vector; an insect; Amphorophora agathonica, A. idaei, A. rubicumberlandii, Illinoia rubicola; Aphididae. Transmitted in a semi-persistent manner. Virus lost by the vector when it moults; does not multiply in the vector; not transmitted congenitally to the progeny of the vector; transmitted by mechanical inoculation; transmitted by grafting; not transmitted by contact between plants; not transmitted by seed; not transmitted by pollen.

Ecology and control

Studies reported by Jones and Jennings (1986).

Geographical distribution

Spreads in Australia, Canada, France, Germany, Italy, the Netherlands, New Zealand, Norway, Poland, and the USA. Found, but with no evidence of spread, in Australia and New Zealand.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Chenopodium amaranticolor, C. quinoa, Gomphrena globosa, Nicotiana debneyi, Petunia × hybrida, Spinacia oleracea - local chlorotic lesions.

Maintenance and propagation hosts

Rubus idaeus, R. occidentalis.

Assay hosts (Local lesions or Whole plants)

Rubus occidentalis (W), R. henryi (W).

Susceptible host species

• Chenopodium amaranticolor
• Chenopodium murale
• Chenopodium quinoa
• Gomphrena globosa
• Nicotiana debneyi
• Petunia × hybrida
• Rubus fruticosus
• Rubus henryi
• Rubus idaeus
• Rubus lasiocarpus
• Rubus loganobaccus
• Rubus occidentalis
• Rubus phoenicolasius
• Rubus procerus
• Rubus ursinus
• Spinacia oleracea

Families containing susceptible hosts

• Amaranthaceae (1/1)
• Chenopodiaceae (4/4)
• Rosaceae (9/9)
• Solanaceae (2/2)

Sources of host-range data

Jones and Murant (1972); Murant et al. (1976).

Physical and biochemical properties

Properties of particles in sap

DEP: log₁₀ minus 1-2. Leaf sap contains few virions.

Purification method

Murant et al. (1976).

Particle morphology

Virions isometric; not enveloped; 25-30 nm in diameter; rounded in profile; without a conspicuous capsomere arrangement.

Physical properties

One sedimenting component in purified preparations.

Cytopathology

Virions found in the leaves; in unusual sites.

Taxonomy and relationships

(ungrouped)

Best tests for diagnosis

Aphid transmission to Rubus indicator hosts.

Comments and References

References

• Jones, A.T. (1988). CMI/AAB Descr. Pl. Viruses No. 333, 4 pp.
• Jones, A.T. and Jennings, D.L. (1986). Ann. appl. Biol. 96: 59.
• Jones, A.T. and Murant, A.F. (1972). Pl. Path. 21: 166.
• Murant, A.D., Jones, A.T. and Roberts, I.M. (1976). Acta Hort. 66: 39.
• Stace-Smith, R. (1955). Can. J. Bot. 33: 314.
• Stace-Smith, R. and Jones, A.T. (1987). In: Virus Diseases of Small Fruits; ed. R.H. Converse, U.S. Dep. Agric. Hdbk No. 631, p. 178.

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.