Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Onion yellow dwarf potyvirus

Index

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

Data collated by L. Bos, 1985.

Nomenclature

Synonyms

allium virus 1.

Acronym

OYDV

ICTV decimal code

57.0.1.0.043

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Allium cepa - leaf striping and curling, stunting ("yellow dwarf").
• Allium cepa var. ascalonicum - leaf striping and curling, stunting.
• Allium (ornamental spp.) - symptoms variable.

Transmission

Transmitted by a vector; an insect; Myzus persicae and several other species; Aphididae. Transmitted in a non-persistent manner. Virus transmitted by mechanical inoculation; not transmitted by contact between plants; not transmitted by seed; not transmitted by pollen.

Geographical distribution

Probably distributed worldwide.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Allium cepa - systemic leaf striping and curling.

Diagnostically insusceptible host species

Allium porrum, Chenopodium amaranticolor, Chenopodium quinoa, Nicotiana clevelandii.

Maintenance and propagation hosts

Allium cepa.

Assay hosts (Local lesions or Whole plants)

Allium cepa (W).

Susceptible host species

• Allium
• Allium cepa
• Allium cepa var. ascalonicum

Insusceptible host species

• Allium porrum
• Chenopodium amaranticolor
• Chenopodium quinoa
• Nicotiana clevelandii
• Nicotiana megalosiphon

Families containing susceptible hosts

• Alliaceae (3/4)

Families containing insusceptible hosts

• Alliaceae (1/4)
• Chenopodiaceae (2/2)
• Solanaceae (2/2)

Comments on host-range

Earlier reports that onion yellow dwarf virus infects Chinese sacred lily (Narcissus tazetta) and jonquil (Narcissus jonquilla) (Anon., 1932; Henderson, 1935) have not been confirmed (Bos, 1982).

Sources of host-range data

Bos et al. (1978).

Physical and biochemical properties

Properties of particles in sap

TIP: 60-65 °C. LIV: 2-3 days. DEP: log₁₀ minus 3-4. Infectivity of sap not changed by treatment with di-ethyl ether. Leaf sap contains few virions.

Purification method

Huttinga (1975).

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with no clear modal length; of 772 and 823 nm (Schmidt and Schmelzer, 1978)). Axial canal obscure. Basic helix obscure.

Physical properties

One sedimenting component in purified preparations; sedimentation coefficient 143 S. Density 1.306 g cm^-3 in CsCl.

NCBI sequence data (Entrez search)

Sequence database accession code(s)

• L28079 Em(40)_vi:PTWPARD Gb(84)_vi:PTWPARD Shallot potyvirus (probably onion yellow dwarf virus) protease gene, partial cds, RNA-dep polmerase 1 sequence.

Features of proteins

Virion protein(s) one; M_r 30000. Method of preparation: Huttinga and Mosch (1974).

Replication

Replication does not depend on a helper virus.

Cytopathology

Virions found in all parts of the host plant; in cytoplasm. Inclusions present in infected cells; are amorphous X-bodies (and granular).

Taxonomy and relationships

Potyvirus: Potyviridae

Virus(es) with serologically related virions

Leek yellow stripe virus, but distantly.

Additional comments on relationships

Onion yellow dwarf virus infects poorly, or with difficulty, Allium porrum (leek); leek yellow stripe virus does not infect or infects onion (Allium cepa) and shallot (Allium cepa var. ascalonicum) with difficulty.

Comments and References

References

• Anon. (1932). Rep. Iowa Agric. Exp. Stn 1932: 32.
• Bos, L. (1976). CMI/AAB Descr. Pl. Viruses No. 158, 4 pp.
• Bos, L., Huijberts, N., Huttinga, H.L. and Maat, D.Z. (1978). Neth. J. Pl. Path. 84: 105.
• Bos, L. (1982). Acta Hort. 12: 11.
• Henderson, R.G. (1935). Res. Bull. Iowa Agric. Exp. Stn 188: 209.
• Huttinga, H. (1975). Neth. J. Pl. Path. 81: 81.
• Huttinga, H. and Mosch, W.H.M. (1974). Neth. J. Pl. Path. 80: 19.
• Melhus, I.E., Reddy, C.S., Henderson, W.J. and Vestal, E.F. (1929). Phytopathology 19: 73.
• Schmidt, H.E. and Schmelzer, K. (1964). Phytopath. Z. 50: 19.

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.