Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Bean pod mottle comovirus

Index

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

Data collated by J.P. Fulton, 1981. Revised 1985.

Nomenclature

Synonyms

pod mottle virus.

Acronym

BPMV

Strains

desmodium virus (Lee and Walters, 1970).

ICTV decimal code

18.0.1.0.003

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Phaseolus vulgaris - severe mottling, malformed leaves and pods.
• Glycine max - mottling and streaking of seed coats.
• Desmodium paniculatum - mottling.

Transmission

Transmitted by a vector; an insect; Ceratoma trifurcata, Diabrotica balteata, D. undecimpunctata howardii, Colaspis flavida, C. lata, Epicauta vittata, Epilachna varivestis; Coleoptera. Virus transmitted by mechanical inoculation; transmitted by grafting; not transmitted by seed; not transmitted by pollen.

Geographical distribution

Spreads in the North American region.

Experimental host range

Few (<3) families susceptible. Experimentally infected plants mostly show mottling, malformation.

Diagnostically susceptible host species and symptoms

• Glycine max - severe mottling and malformation of leaves, pods and seed coats.
• Phaseolus vulgaris cvs Black Valentine, Bountiful, Tendergreen, Cherokee Wax - severe leaf mottling, malformation.
• Mucuna deeringianum, Trifolium incarnatum, Lespedeza striata - mottling.

Maintenance and propagation hosts

Glycine max, Phaseolus vulgaris cvs Black Valentine, Cherokee Wax, Bountiful.

Assay hosts (Local lesions or Whole plants)

Phaseolus vulgaris cvs Pinto, Kentucky Wonder, Tendergreen (L).

Susceptible host species

• Cassia occidentalis
• Catharanthus roseus
• Chenopodium quinoa
• Desmodium paniculatum
• Glycine max
• Lens culinaris
• Lespedeza stipulacea
• Lespedeza striata
• Mucuna deeringianum
• Phaseolus lunatus
• Phaseolus vulgaris
• Pisum sativum
• Sesbania exaltata
• Trifolium incarnatum
• Vigna radiata
• Vigna unguiculata

Insusceptible host species

• Arachis hypogaea
• Brassica oleracea var. botrytis
• Capsicum frutescens
• Crotalaria spectabilis
• Cucumis sativus
• Datura stramonium
• Lactuca sativa
• Lycopersicon esculentum
• Medicago sativa
• Melilotus albus
• Nicotiana glutinosa
• Nicotiana tabacum
• Petunia × hybrida
• Phaseolus lunatus
• Pisum sativum
• Trifolium pratense
• Trifolium repens
• Vicia faba
• Vigna angularis
• Vigna unguiculata
• Vigna unguiculata ssp. sesquipedalis

Families containing susceptible hosts

• Apocynaceae (1/1)
• Chenopodiaceae (1/1)
• Leguminosae-Caesalpinioideae (1/1)
• Leguminosae-Papilionoideae (13/22)

Families containing insusceptible hosts

• Compositae (1/1)
• Cruciferae (1/1)
• Cucurbitaceae (1/1)
• Leguminosae-Papilionoideae (12/22)
• Solanaceae (6/6)

Sources of host-range data

Skotland (1958); Thornberry (1966); Hampton et al. (1978).

Physical and biochemical properties

Properties of particles in sap

TIP: 70-75 °C. LIV: 62-93 days. DEP: log₁₀ minus 4-5. Leaf sap contains many virions.

Purification method

Bancroft (1962).

Particle morphology

Virions isometric; not enveloped; 28 nm in diameter; angular in profile; without a conspicuous capsomere arrangement.

Physical properties

Three sedimenting components in purified preparations; sedimentation coefficient of the fastest 112 S (B); of the other(s) 91 S (M), or 54 S (T). Isoelectric point pH 4.8 (slow), or 5.3 (fast). A₂₆₀/A₂₈₀ ratio 1.77 (B), or 1.7 (M).

Biochemical properties

Virions contain 37 % nucleic acid (B), or 30 % nucleic acid (M), or 0 % nucleic acid (T); 63 % protein (B), or 70 % protein (M), or 100 % protein (T); 0 % lipid.

Genome consists of RNA; single-stranded; linear. Total genome size 12.8 kb. Genome of two parts; largest (or only) genome part the larger 8 kb; the 2nd largest 4.8 kb. Base composition 19.1 % G; 33.4 % A; 16.7 % C; 30.8 % U.

NCBI sequence data (Entrez search)

Sequence database accession code(s)

• M62738 Em(40)_vi:COMBPMCO Gb(84)_vi:BPMCOAT Bean pod mottle virus coat protein gene, complete cds, complete middle component (M) RNA. 4/9 1 sequence.

Cytopathology

Virions found in all parts of the host plant. Inclusions present in infected cells; are crystals in the cytoplasm and unusual in shape; masses of clustered membranous vesicles and bundles of filamentous structures; they contain virions. Other cellular changes: prominent cell wall protrusions containing virions embedded in tubules.

Taxonomy and relationships

Comovirus: Comoviridae

Virus(es) with serologically related virions

Cowpea mosaic, radish mosaic, squash mosaic and red clover mottle viruses (Bruening, 1978).

Comments and References

References

• Bancroft, J.B. (1962). Virology 16: 419.
• Bruening, G. (1978). CMI/AAB Descr. Pl. Viruses No. 199, 4 pp.
• Hampton, R., Beczner, L., Hagedorn, D., Bos, L., Inouye, T., Barnett, O., Musil, M. and Meiners, J. (1978). Phytopathology 68: 989.
• Lee, F.N. and Walters, H.J. (1970). Phytopathology 60: 585.
• Semancik, J.S. (1972). CMI/AAB Descr. Pl. Viruses No. 108, 4 pp.
• Skotland, C.B. (1958). Pl. Dis. Reptr 42: 1155.
• Thornberry, H.H. (1966). In: Index of Plant Virus Diseases. U.S. Dep. Agric. Hdbk No. 307.
• Zaumeyer, W.J. and Thomas, H.R. (1948). J. Agric. Res. 77: 81.

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.