Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Okra leaf-curl bigeminivirus

Index

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

Data collated by L. Givord, 1991.

Nomenclature

Synonyms

bamia leaf-crinkle virus.

Acronym

OLCV

ICTV decimal code

29.0.3.0.027

Host range and symptoms

Natural host range and symptoms

Symptoms persist. Symptoms vein thickening, leaf crinkling and curling, vein enations, plants stunted and develop fewer and smaller pods.
• Abelmoschus esculentus - leaf crinkling, curling, plants stunted.

Transmission

Transmitted by a vector; an insect; Bemisia tabaci; Aleyrodidae. Transmitted in a persistent manner. Virus not transmitted by mechanical inoculation; transmitted by grafting; not transmitted by seed.

Ecology and control

Studies reported by Atiri and Fayoyin (1989).

Geographical distribution

Spreads in Chad, Cote d'Ivoire, Nigeria, and Sudan.

Experimental host range

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

Diagnostically susceptible host species and symptoms

• Gossypium hirsutum, Lycopersicon esculentum cv. Congo Jute, Urena lobata - leaf curl.
• Nicotiana tabacum cv. Havana 24 - faint mottling.

Maintenance and propagation hosts

Abelmoschus esculentus.

Assay hosts (Local lesions or Whole plants)

Abelmoschus esculentus (W).

Susceptible host species

• Abelmoschus esculentus
• Gossypium hirsutum
• Lycopersicon esculentum
• Nicotiana tabacum
• Urena lobata

Families containing susceptible hosts

• Malvaceae (3/3)
• Solanaceae (2/2)

Sources of host-range data

Yassin and Nour (1965); Lana (1976).

Physical and biochemical properties

Properties of particles in sap

Leaf sap contains few virions.

Purification method

Grinding in phosphate buffer 0.2M pH 7.8, butanol/chloroform clarification, differential centrifugation, sucrose density gradient, yielding at 1-5 mg/kg.

Particle morphology

Virions geminate; 20 nm in diameter; rounded in profile.

Taxonomy and relationships

bigeminivirus: Geminiviridae

Virus(es) with serologically related virions

African cassava mosaic virus.

Comments and References

References

• Ahmed, A.H. (1978). Acta Hort. 84: 65.
• Atiri, G.I. and Fayoyin, G.A. (1989). Ann. appl. Biol. (suppl.) 10: 152.
• Bink, F.A. (1973). Cot. Fib. Trop. 28: 365.
• Fauquet, C. and Thouvenel, J.C. (1987). Initiations Documentations Techniques No. 46.
• Kirkpatrick, T.W. (1930). Bull. Ent. Res. 21; 127.
• Kirkpatrick, T.W. (1931). Bull. Ent. Res. 22: 323.
• Lana, A.F. (1976). PANS 22: 474.
• Yassin, A.M. and Nour, M.A. (1965). Ann. appl. Biol. 56: 207.

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.