Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Strawberry vein banding (?) caulimovirus

Index

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

Data collated by T.J. Morris and J.A. Cooper, 1985.

Nomenclature

Synonyms

yellow vein banding virus, chiloensis vein banding virus, Eastern veinbanding virus.

Acronym

SVBV

Strains

possibly Erdbeer-Nekrose virus (Schöniger, 1958; Domes, 1957).

ICTV decimal code

15.0.1.0.011

Host range and symptoms

Natural host range and symptoms

Symptoms persist (but symptoms fluctuate in severity).
• Fragaria vesca, F. virginiana, F. chiloensis and F. × ananassa - yellow vein banding, discontinuous banding, streaking and spotting of older leaves, twisting of leaflets.

Transmission

Transmitted by a vector; an insect; Chaetosiphon jacobi, C. fragaraefolii, C. thomasi; Aphididae. Transmitted in a semi-persistent manner. Virus does not multiply in the vector; not transmitted congenitally to the progeny of the vector; not transmitted by mechanical inoculation; transmitted by grafting; not transmitted by contact between plants; not transmitted by seed; not transmitted by pollen.

Geographical distribution

Spreads in the African region; Australia, Brazil, Canada, Chile, China, the former Czechoslovakia, Germany, Hungary, Ireland, Italy, Japan, the USA, and the former USSR (Schöniger, 1958).

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Fragaria vesca, F. virginiana, F. chiloensis and F. × ananassa - yellow vein banding, discontinuous banding, streaking and spotting of older leaves, twisting of leaflets.

Maintenance and propagation hosts

Most species and clones of Fragaria vesca, F. virginiana, F. chiloensis and F. × ananassa.

Assay hosts (Local lesions or Whole plants)

Fragaria vesca (W), F. virginiana (W).

Susceptible host species

• Fragaria chiloensis
• Fragaria vesca
• Fragaria virginiana
• Fragaria × ananassa
• Sanguisorba minor

Families containing susceptible hosts

• Rosaceae (5/5)

Physical and biochemical properties

Properties of particles in sap

Leaf sap contains few virions. Electron microscopy: purification, 1% formaldehyde treatment, stain with UA. For ISEM use cauliflower mosaic virus antiserum to trap virions.

Purification method

Morris et al. (1980).

Particle morphology

Virions isometric; not enveloped; 43 nm in diameter (» 4nm); rounded in profile.

Physical properties

One sedimenting component in purified preparations; sedimentation coefficient 200 S (»10).

Biochemical properties

Genome consists of DNA; double-stranded; circular. Total genome size 7.8 kb (pairs). Genome unipartite; largest (or only) genome part 7.8 kb (pairs).

Replication

Genome replicates in cytoplasmic inclusions.

Cytopathology

Virions found in leaves, mesophyll, epidermis and vascular parenchyma particularly in adjoining xylem vessels; in cytoplasm (where unique spike structures are observed when stained with UA). Inclusions present in infected cells; are viroplasms; they contain virions.

Taxonomy and relationships

Possible Caulimovirus

Virus(es) with serologically related virions

Cauliflower mosaic virus.

Virus(es) with serologically unrelated virions

Carnation etched ring virus.

Additional comments on relationships

The strawberry vein-banding virus genome has no significant homology in hybridization tests with that of cauliflower mosaic virus.

Comments and References

References

• Domes, R. (1957). Phytopath. Z. 31: 113.
• Frazier, N.W. and Converse, R.H. (1980). CMI/AAB Descr. Pl. Viruses No. 219, 4 pp.
• Frazier, N.W. and Morris, T.J. (1985). In: Virus Diseases of Small Fruits; ed. R.H. Converse. U.S. Dep. Agric. Hdbk No. 631, p. 16.
• Kitajima, E.W., Betti, J.A. and Costa, A.S. (1973). J. gen. Virol. 20: 117.
• Miller, P.W. and Frazier, N.W. (1970). In: Virus Diseases of Small Fruits and Grapevines pp. 8-10; ed. Frazier. Univ. Calif. Div. Agric. Sci., Berkeley.
• Morris, T.J., Mullin, R.H., Schlegel, D.E., Cole, A. and Alosi, M.C. (1980). Phytopathology 70: 156.
• Prentice, I.W. (1952). Ann. appl. Biol. 39: 487.
• Schöniger, G. (1958). Phytopath. Z. 32: 325.

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.