Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Soybean Z (?) potyvirus

Index

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

Data collated by J.L. Dale, 1987.

Nomenclature

ICTV decimal code

57.0.1.T.D.14

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Glycine max - mosaic.

Transmission

Virus transmitted by mechanical inoculation.

Geographical distribution

Spreads in Australia.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Glycine max - mosaic.
• Phaseolus vulgaris cv. Bountiful - green local lesions when inoculated leaves senesce.
• Lathyrus odoratus, Macroptilium lathyroides - symptomless systemic infection.

Diagnostically insusceptible host species

Chenopodium amaranticolor, Chenopodium album, Pisum sativum, Vicia faba, Datura stramonium.

Maintenance and propagation hosts

Glycine max.

Assay hosts (Local lesions or Whole plants)

Phaseolus vulgaris (L), Glycine max (W).

Susceptible host species

• Glycine max
• Gomphrena globosa
• Lathyrus odoratus
• Macroptilium lathyroides
• Phaseolus vulgaris

Insusceptible host species

• Chenopodium album
• Chenopodium amaranticolor
• Cucumis sativus
• Datura stramonium
• Lablab purpureus
• Lycopersicon esculentum
• Medicago sativa
• Pisum sativum
• Trifolium pratense
• Trifolium repens
• Trifolium subterraneum
• Vicia faba
• Vigna unguiculata
• Vigna unguiculata ssp. cylindrica

Families containing susceptible hosts

• Amaranthaceae (1/1)
• Leguminosae-Papilionoideae (4/13)

Families containing insusceptible hosts

• Chenopodiaceae (2/2)
• Cucurbitaceae (1/1)
• Leguminosae-Papilionoideae (9/13)
• Solanaceae (2/2)

Sources of host-range data

Dale and Gibbs (1975).

Physical and biochemical properties

Properties of particles in sap

TIP: 60-64 °C. LIV: more than 10 days. DEP: log₁₀ minus 3-4. Leaf sap contains few virions.

Purification method

Dale and Gibbs (1975).

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 610 nm. Axial canal obscure.

Physical properties

One sedimenting component in purified preparations.

Biochemical properties

Virions contain 6 % nucleic acid; 94 % protein.

Genome consists of RNA; single-stranded. Base composition 23.3 % G; 25.5 % A; 24.8 % C; 26.3 % U.

Features of proteins

Virion protein(s) one; M_r 27400; coat protein. Method of preparation: Dale and Gibbs (1975). Amino acid composition: Dale and Gibbs (1975).

Cytopathology

Virions found in leaves; in cytoplasm. Inclusions present in infected cells; are amorphous X-bodies; they contain virions.

Taxonomy and relationships

unassigned potyvirus

Best tests for diagnosis

This virus could be confused with soybean mosaic virus, but can be distinguished by serological tests and is not transmitted by aphids.

Comments and References

References

• Dale, J.L. and Gibbs, A.J. (1975). Intervirology 6: 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.