Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Burdock yellows closterovirus

Index

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

Data collated by A.A. Brunt, 1991.

Nomenclature

Acronym

BuYV

ICTV decimal code

17.0.1.0.004

Host range and symptoms

Natural host range and symptoms

• Arctium lappa - faint chlorosis, often marginal, or symptomless. Infected plants often also contain burdock mosaic virus.

Transmission

Transmitted by a vector; an insect; Dactynotus gobonis; Aphididae. Transmitted in a semi-persistent manner. Virus transmitted by mechanical inoculation (with difficulty).

Geographical distribution

Spreads in Japan.

Experimental host range

Few (<3) families susceptible. Experimentally infected plants mostly show yellows.

Diagnostically susceptible host species and symptoms

• Nicotiana clevelandii - systemic leaf chlorosis.

Maintenance and propagation hosts

Nicotiana clevelandii.

Assay hosts (Local lesions or Whole plants)

Nicotiana clevelandii (W).

Susceptible host species

• Arctium lappa
• Nicotiana clevelandii

Families containing susceptible hosts

• Compositae (1/1)
• Solanaceae (1/1)

Physical and biochemical properties

Properties of particles in sap

TIP: 45-50 °C. LIV: 1-2 days. Leaf sap contains few virions.

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 1725 nm; 12 nm wide. Axial canal obscure. Basic helix obvious; pitch of basic helix 3.6 nm.

Physical properties

A₂₆₀/A₂₈₀ ratio 1.73.

Cytopathology

Virions found in leaves, mesophyll and vascular parenchyma; in cytoplasm. Inclusions present in infected cells; are viroplasms; they contain virions. Other cellular changes: necrosis of phloem cells.

Taxonomy and relationships

Closterovirus

Virus(es) with serologically unrelated virions

Carnation necrotic fleck, citrus tristeza and wheat yellow leaf viruses.

Comments and References

References

• Inouye, T. and Mitsuhata, K. (1971). Agric. Res. 54: 1.
• Nakano, M. and Inouye, T. (1980). Ann. Phytopath. Soc. Japan 46: 7.

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.