Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Quail pea mosaic comovirus

Index

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

Data collated by K. Boswell, 1985.

Nomenclature

Synonyms

bean curly dwarf mosaic virus (Moore and Scott, 1981).

Acronym

QPMV

Strains

type, bean curly dwarf mosaic.

ICTV decimal code

18.0.1.0.012

Host range and symptoms

Natural host range and symptoms

• Strophostyles helvula, Glycine max, Phaseolus vulgaris - mosaic.

Transmission

Transmitted by a vector; an insect; Ceratoma trifurcata.; Coleoptera. Virus transmitted by mechanical inoculation; not transmitted by seed (type strain not transmitted through seed of Phaseolus vulgaris or P. acutifolius; Meiners et al., 1977).

Geographical distribution

Spreads in Costa Rica and El Salvador (in Phaseolus vulgaris), the USA (in Strophostyles helvula in Arkansas).

Experimental host range

Many (>9) families susceptible.

Diagnostically susceptible host species and symptoms

• Gomphrena globosa - not infected by type strain; systemic chlorosis (bean curly dwarf strain).
• Ipomoea nil cv.-Scarlet O'Hara - necrotic local lesions; not systemic.
• Vigna unguiculata cv. Monarch - chlorotic local lesions but not systemic.

Maintenance and propagation hosts

Phaseolus vulgaris cvs Black Valentine, Cherokee Wax, Glycine max cv. Kanrich.

Assay hosts (Local lesions or Whole plants)

Phaseolus vulgaris cv. Pinto (L). Glycine max cv. Lee (W) for vector transmission.

Susceptible host species

• Cajanus cajan
• Chenopodium quinoa
• Glycine max
• Gomphrena globosa
• Ipomoea nil
• Lablab purpureus
• Lens culinaris
• Macroptilium lathyroides
• Phaseolus lunatus
• Phaseolus vulgaris
• Pisum sativum
• Sesbania exaltata
• Strophostyles helvula
• Vicia faba
• Vigna radiata
• Vigna unguiculata

Insusceptible host species

• Arachis hypogaea
• Cicer arietinum
• Gomphrena globosa
• Lablab purpureus
• Macrotyloma uniflorum
• Phaseolus lunatus
• Tephrosia vogelii
• Vigna unguiculata

Families containing susceptible hosts

• Amaranthaceae (1/1)
• Chenopodiaceae (1/1)
• Convolvulaceae (1/1)
• Leguminosae-Papilionoideae (13/17)

Families containing insusceptible hosts

• Amaranthaceae (1/1)
• Leguminosae-Papilionoideae (7/17)

Sources of host-range data

Meiners et al. (1977).

Physical and biochemical properties

Properties of particles in sap

TIP: 55-60 °C. LIV: 5-6 days. DEP: log₁₀ minus 3-4.

Purification method

Moore and Scott (1981).

Particle morphology

Virions isometric; not enveloped; 30 nm in diameter.

Physical properties

Three sedimenting components in purified preparations; sedimentation coefficient of the fastest 112 S (B); of the other(s) 93 S (M), or 57 S (T).

Biochemical properties

Genome consists of RNA; single-stranded; of two parts.

Features of proteins

Virion protein(s) two; M_r of the larger 40000. M_r of 2nd largest 22000.

Taxonomy and relationships

Comovirus: Comoviridae

Virus(es) with serologically related virions

Members of each of the other four serogroups (Fulton and Scott, 1979).

Differences between type strain and others

The bean curly dwarf strain differs from the type strain in several respects. It is transmitted by Diabrotica undecimpunctata, Epilachna varivestis, infects Gomphrena globosa systemically, induces chlorotic local lesions in Lablab purpureus, and diffuse local lesions in Phaseolus vulgaris cvs Pinto, Top Crop. Its best local lesion host is Lablab purpureus.

Comments and References

References

• Fulton, J.P. and Scott, H.A. (1979). Phytopathology 69: 305.
• Meiners, J.P., Waterworth, H.E., Lawson, R.H. and Smith, F.F. (1977). Phytopathology 67: 163.
• Moore, B.J. (1973). Pl. Dis. Reptr 57: 311.
• Moore, B.J. and Scott, H.A. (1981). CMI/AAB Descr. Pl. Viruses No. 238, 4 pp.

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.