Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Tomato mottle bigeminivirus

Index

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

Data collated by A.A. Brunt, 1995.

Nomenclature

Acronym

ToMoV (TMoV)

ICTV decimal code

29.0.3.0.041

Host range and symptoms

Natural host range and symptoms

Symptoms persist.

Lycopersicon esculentum - chlorotic mottling of younger leaves, curling and chlorosis of older leaves; plants stunted, especially those infected when young.

Transmission

Transmitted by a vector; an insect; Bemisia tabaci; Aleyrodidae. Principal natural vector(s): B. tabaci - biotype B. Virus not transmitted by mechanical inoculation; transmitted by grafting; not transmitted by seed; Kring et al. (1991).

Geographical distribution

Spreads in the North American region; the USA.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Lycopersicon pimpinellifolium, Nicotiana benthamiana - systemic mottling and leaf curling; plants stunted.
• Lycopersicon hirsutum, L. peruvianum - systemic yellow mosaic.
• Physalis ixocarpa - systemic yellow mosaic, leaf curling; plants stunted.
• Phaseolus vulgaris - symptomless systemic infection.

Diagnostically insusceptible host species

Brassica oleracea, Capsicum annuum, Cucurbita pepo, Datura stramonium.

Maintenance and propagation hosts

Lycopersicon esculentum.

Assay hosts (Local lesions or Whole plants)

Lycopersicon esculentum (W).

Susceptible host species

• Lycopersicon chilense
• Lycopersicon esculentum
• Lycopersicon hirsutum
• Lycopersicon peruvianum
• Lycopersicon pimpinellifolium
• Nicotiana benthamiana
• Nicotiana tabacum
• Nicotiana × edwardsonii
• Petunia × hybrida
• Phaseolus vulgaris
• Physalis ixocarpa

Insusceptible host species

• Arachis hypogaea
• Brassica oleracea
• Brassica oleracea var. capitata
• Capsicum annuum
• Cucurbita pepo
• Datura stramonium
• Glycine max
• Gossypium hirsutum
• Macroptilium lathyroides
• Medicago sativa
• Phaseolus acutifolius
• Solanum melongena
• Solanum tuberosum
• Vigna radiata

Families containing susceptible hosts

• Leguminosae-Papilionoideae (1/7)
• Solanaceae (10/14)

Families containing insusceptible hosts

• Cruciferae (2/2)
• Cucurbitaceae (1/1)
• Leguminosae-Papilionoideae (6/7)
• Malvaceae (1/1)
• Solanaceae (4/14)

Physical and biochemical properties

Particle morphology

Virions geminate; 18 nm in diameter; dimers 30 nm in length.

Biochemical properties

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

NCBI sequence data (Entrez search)

Sequence database accession code(s)

• L02618 Em(40)_vi:GETMWBR1 Gb(84)_vi:TMWBR1 Tomato mottle geminivirus (clone pTFB-1) BR1 gene, complete cds. 3/93 771bp.
• L14460 Em(40)_vi:GETMWALR Gb(84)_vi:TMWALR Tomato mottle geminivirus complete A component DNA; coat protein (AR1) gene, replicative prot
• L14461 Em(40)_vi:GETMWBRL Gb(84)_vi:TMWBRL Tomato mottle geminivirus complete B component DNA; BR1 and BL1 genes, complete cds's. 5/93 2
• M90494 Em(40)_vi:GETMVREPO Gb(84)_vi:TMWREPORI Tomato mottle viurs gene, putative origin of replication. 5/92 182bp.
• M90495 Em(40)_vi:GETMVREPP Gb(84)_vi:TMWREPPRO Tomato mottle viurs replicative protein (AL1) gene, putative cds. 5/92 1,086bp. 5 sequences.

Cytopathology

Virions found in cytoplasm and in nuclei. Inclusions present in infected cells; are unusual in shape; fibrillar rings.

Taxonomy and relationships

bigeminivirus: Geminiviridae

Additional comments on relationships

Its host range and genome nucleotide sequence indicate that the virus is distinct from other New World geminiviruses.

Comments and References

References

• Abouzid, A., Polston, J.E. and Hiebert, E. (1992). J. gen. Virol. 73: 3225.
• Kring, J.B., Shuster, D.J., Price, J.F. and Simone, G.W. (1991). Plant Dis. 75: 1186.
• Polston, J.E., Hiebert, E., McGovern, R.J., Stansly, P.A. and Schuster, D.J. (1993). Plant Dis. 77: 1181.
• Simone, G.W., Brown, J.K., Hiebert, E. and Cullen, R.E. (1990). Phytopathology 80: 1063.

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.