Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Maize mosaic nucleorhabdovirus

Index

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

Data collated by R. Lastra, 1985.

Nomenclature

Synonyms

virus del enanismo rayado maiz, maize stripe Indian virus (Sharma and Payak, 1983), sorghum chlorosis virus, zea mays virus.

Acronym

MMV

Strains

MMV - raya fina, MMV - raya gruesa.

ICTV decimal code

62.0.5.0.004

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Rottboellia exaltata, Setaria vulpiseta, Zea mays - green-yellow spotting, striping and vein-banding, some apical bending.
• Sorghum bicolor - interveinal chlorotic streaking, stunting and severe yield loss.

Transmission

Transmitted by a vector; an insect; Peregrinus maidis; Delphacidae. Transmitted in a persistent manner. Virus retained when the vector moults; multiplies in the vector; not transmitted congenitally to the progeny of the vector; not transmitted by mechanical inoculation; not transmitted by contact between plants; not transmitted by seed; not transmitted by pollen.

Geographical distribution

Spreads in possibly Australia, Colombia, Costa Rica, Fiji, India, Mauritius, Mexico, Peru, Spain, Tanzania, and the USA (and the Caribbean Islands).

Experimental host range

Few (<3) families susceptible.

Maintenance and propagation hosts

Zea mays.

Assay hosts (Local lesions or Whole plants)

Zea mays (W).

Susceptible host species

• Rottboellia exaltata
• Setaria vulpiseta
• Sorghum bicolor
• Zea mays

Families containing susceptible hosts

• Gramineae (4/4)

Physical and biochemical properties

Properties of particles in sap

Leaf sap contains many virions.

Purification method

Lastra and Acosta (1979).

Particle morphology

Virions rhabdo- or bullet-shaped; enveloped; with a clear modal length; of 225 nm (242 nm in thin sections); 90 nm wide (48m in thin sections).

Physical properties

One sedimenting component in purified preparations; sedimentation coefficient 774 S. Density 1.181 g cm^-3 in sucrose.

Biochemical properties

Genome consists of RNA; single-stranded. Total genome size 12.54 kb. Genome unipartite; largest (or only) genome part 12.54 kb. Genomic nucleic acid isolated by Lastra and Acosta (1979). Infectivity lost when deproteinised with proteases; lost when deproteinised with phenol or detergent. Additional factor required for infectivity; probably a polymerase.

Features of the genome

Non-genomic nucleic acid N protein.

Features of proteins

Virion protein(s) five. M_r of 2nd largest 75000; 0 protei. M_r of 3rd largest 50000. M_r of 4th largest 45000; NS protein. M_r of 5th largest 33000; M protein. Method of preparation: Autrey (1983); Falk and Tsai (1983). Virion proteins probably glycosylated.

Replication

Genome replicates in nuclei. Coat protein mRNA translated in probably in cytoplasm. Replication does not depend on a helper virus.

Cytopathology

Virions found in all parts of the host plant; in the perinuclear space; and the cores bud through the inner nuclear membrane. Inclusions present in infected cells; are unusual in shape; aggregates; they contain virions.

Taxonomy and relationships

Nucleorhabdovirus: Rhabdoviridae

Comments and References

References

• Autrey, L.C. (1983). Proc. Int. Maize Virus Disease Wksh., 1982, p. 167. Wooster, Ohio, Agric. Res. and Dev. Center.
• Christie, R.G. and Edwardson, J.R. (1977). Fla Agric. Exp. Stn Monog. No. 9.
• Falk, B.W. and Tsai, J.H. (1983). Phytopathology 73: 1536.
• Herold, F. (1972). CMI/AAB Descr. Pl. Viruses No. 94, 4 pp.
• Herold, F. and Munz, K. (1965). Virology 25: 412.
• Herold, F. and Munz, K. (1967). J. gen. Virol. 1: 227.
• Herold, F., Bergold, G.H. and Weibel, J. (1960). Virology 12: 335.
• Kunkel, L.O. (1921). Bull. Hawaiian Sug. Pltrs. Assoc. Exp. Stn Bot. Ser. 3: 44.
• Lastra, R.G. and Acosta, J.M. (1979). Intervirology 11: 215.
• Lastra, R.G. and Corballo, O. (1983). Proc. Int. Maize Disease Wksh, 1982, p. 83. Wooster, Ohio, Agric. Res. and Dev. Center.
• Naidan, R.A., Harikrishnan, R., Manohar, S.K., Reddy, D.V.R., Rakna, A.S., King, S.B. and Bandyopadhyay, R. (1989). Ann. appl. Biol. 114: 301.
• Sharma, R.C. and Payak, M.M. (1983). Proc. Int. Maize Virus Dis. Colloq. Wksh., Wooster, Ohio 1982, p. 186.
• Tsai, J.H. and Falk, B.W. (1988). In: Advances in Vector Research Vol 5. Springer-Verlag. New York.

Illustrations

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.