Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Bean mild mosaic carmovirus

Index

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

Data collated by H. Waterworth, 1981. Revised by A.V. Karasev, 1991.

Nomenclature

Acronym

BMMV

ICTV decimal code

74.0.2.0.003

Host range and symptoms

Natural host range and symptoms

• Phaseolus vulgaris - mild chlorotic vein banding and mosaic.

Transmission

Transmitted by a vector; an insect; Epilachna varivestis, Diabrotica undecimpunctata howardi, D. balteata, Ceratoma ruficornis, Gynandrobrotica variabilis; Coleoptera. Virus transmitted by mechanical inoculation.

Geographical distribution

Spreads in the South and Central American region; Colombia and El Salvador.

Experimental host range

Several (3-9) families susceptible. Experimentally infected plants mostly show chlorosis, mosaic.

Diagnostically susceptible host species and symptoms

• Cyamopsis tetragonoloba, Lablab purpureus, Phaseolus vulgaris cvs 27R, Top Crop - mild systemic chlorotic mosaic.

Diagnostically insusceptible host species

Arachis hypogaea, Cicer arietinum, Pisum sativum, Phaseolus coccineus, P. lunatus, Vicia faba, Vigna radiata, V. unguiculata.

Maintenance and propagation hosts

Phaseolus vulgaris cvs Top Crop, Pinto.

Assay hosts (Local lesions or Whole plants)

Phaseolus vulgaris cvs Top Crop (W), Pinto (W).

Susceptible host species

• Cyamopsis tetragonoloba
• Glycine max
• Gomphrena globosa
• Lablab purpureus
• Macrotyloma uniflorum
• Phaseolus vulgaris
• Sesbania exaltata

Insusceptible host species

• Amaranthus caudatus
• Antirrhinum majus
• Arachis hypogaea
• Beta vulgaris
• Brassica campestris ssp. rapa
• Calendula officinalis
• Capsicum annuum
• Capsicum frutescens
• Chenopodium quinoa
• Cicer arietinum
• Cucumis sativus
• Cucurbita maxima
• Datura stramonium
• Dianthus barbatus
• Hordeum vulgare
• Lens culinaris
• Lycopersicon esculentum
• Momordica balsamina
• Nicotiana glutinosa
• Nicotiana tabacum
• Petunia × hybrida
• Phaseolus coccineus
• Phaseolus lunatus
• Physalis floridana
• Pisum sativum
• Raphanus sativus
• Sesamum indicum
• Tetragonia tetragonioides
• Torenia fournieri
• Vicia faba
• Vigna radiata
• Vigna unguiculata
• Zea mays
• Zinnia elegans

Families containing susceptible hosts

• Amaranthaceae (1/2)
• Leguminosae-Papilionoideae (6/15)

Families containing insusceptible hosts

• Amaranthaceae (1/2)
• Caryophyllaceae (1/1)
• Chenopodiaceae (2/2)
• Compositae (2/2)
• Cruciferae (2/2)
• Cucurbitaceae (3/3)
• Gramineae (2/2)
• Leguminosae-Papilionoideae (9/15)
• Pedaliaceae (1/1)
• Scrophulariaceae (2 /2)
• Solanaceae (8/8)
• Tetragoniaceae (1/1)

Sources of host-range data

Waterworth et al. (1977); Waterworth (1981).

Physical and biochemical properties

Properties of particles in sap

TIP: 84 °C. LIV: 42 days. DEP: log₁₀ minus 8.

Purification method

Waterworth et al. (1977); Karasev et al. (1989).

Particle morphology

Virions isometric; not enveloped; 27-30 nm in diameter; angular in profile; with a conspicuous capsomere arrangement.

Physical properties

One sedimenting component in purified preparations; sedimentation coefficient 127 S. Density 1.336 g cm^-3 in CsCl (Hari et al., 1989). A₂₆₀/A₂₈₀ ratio 1.52 (Karasev et al., 1989).

Biochemical properties

Virions contain 20 % nucleic acid; 80 % protein.

Genome consists of RNA; single-stranded; linear. Total genome size 4.2 kb. Genome unipartite; largest (or only) genome part 4.2 kb. Base composition 21.7 % G; 25.8 % A; 31.5 % C; 21 % U. 5´ terminus of RNA has a methylated nucleotide cap (only a portion of the RNA). Poly A region absent.

Features of the genome

Non-genomic nucleic acid found in the virions; is subgenomic mRNA. Sub-genomic mRNA found in infected cells.

Features of proteins

Virion protein(s) one; M_r 40000; coat protein.

Virus-coded non-virion proteins isolated; two proteins found, or four proteins found. M_r of the largest 79000. M_r of 2nd largest 27000. M_r of 3rd 8000. M_r of 4th 6900.

Taxonomy and relationships

Carmovirus: Tombusviridae

Virus(es) with serologically unrelated virions

Bean pod mottle, southern bean mosaic, cowpea chlorotic mottle, bean rugose mosaic, red clover mottle, broad bean true mosaic, cowpea mosaic, radish mosaic and squash mosaic viruses.

Comments and References

References

• Hampton, R.O. and Hancock, C.L. (1981). Phytopathology 71: 223.
• Hari, V., Gadh, I.P.S., Baunoch, D. and Das, P. (1989). Virus Genes 2: 211.
• Karasev, A.V., Chirkov, S.N., Kaftanova, A.S., Miroshnichenko, N.A., Surgucheva, N.A. and Fedotina, V.L. (1989). Intervirology 30: 285.
• Meiners, J.P., Waterworth, H.E., Lawson, R.H. and Smith, F.F. (1977). Phytopathology 67: 163.
• Scott, H.A. and Phatak, H.C. (1979). Phytopathology 69: 346.
• Waterworth, H.E. (1981). CMI/AAB Descr. Pl. Viruses No. 231, 3 pp.
• Waterworth, H.E., Meiners, J.P., Lawson, R.H. and Smith, F.F. (1977). Phytopathology 67: 169.

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.