Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Sorghum stunt mosaic (?) nucleorhabdovirus

Index

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

Data collated by A.A. Brunt and D.E. Mayhew, 1988.

Nomenclature

ICTV decimal code

62.0.5.T.D.12

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Sorghum vulgare - chlorotic and necrotic mottling and streaking, severe stunting and fewer seeds.

Transmission

Transmitted by a vector; an insect; Graminella sonora; Delphacidae. Virus not transmitted by mechanical inoculation.

Ecology and control

Studies reported by there may be different optimum temperatures for virus transmission and symptom expression. Temperatures above 38ºC kill viruliferous leafhoppers, but induce severe symptoms. Below 27ºC, the vector thrives, but no virus can be detected in the hosts (Mayhew and Flock, 1981).

Geographical distribution

Spreads in the USA.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Sorghum vulgare, Zea mays, Triticum aestivum - systemic chlorotic and necrotic mottling and streaking, severe stunting and fewer seeds.

Diagnostically insusceptible host species

Hordeum vulgare, Avena sativa.

Maintenance and propagation hosts

Sorghum vulgare, Zea mays.

Assay hosts (Local lesions or Whole plants)

Sorghum vulgare (W), Zea mays (W).

Susceptible host species

• Sorghum vulgare
• Triticum aestivum
• Zea mays

Insusceptible host species

• Avena sativa
• Hordeum vulgare

Families containing susceptible hosts

• Gramineae (3/5)

Families containing insusceptible hosts

• Gramineae (2/5)

Sources of host-range data

Mayhew and Flock (1981).

Physical and biochemical properties

Properties of particles in sap

Leaf sap contains few virions.

Particle morphology

Virions rhabdo- or bullet-shaped; enveloped; with a clear modal length; of 220 nm; 68 nm wide (in sections). Basic helix obvious.

Cytopathology

Virions found in leaves and mesophyll; in the perinuclear space.

Taxonomy and relationships

Possible Nucleorhabdovirus: Rhabdoviridae

Virus(es) with serologically unrelated virions

Maize mosaic rhabdovirus.

Comments and References

References

• Mayhew, D.E. and Flock, R.A. (1981). Plant Dis. 65: 84.

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.