Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Chino del tomaté bigeminivirus

Index

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

Data collated by J.K. Brown, 1990.

Nomenclature

Acronym

CdTV

ICTV decimal code

29.0.3.0.011

Host range and symptoms

Natural host range and symptoms

Symptoms persist and vary seasonally.
• Lycopersicon esculentum - leaf mottling, yellowing, curling.
• Capsicum annuum - vein-puckering and striping on stems and fruit. This virus together with pepper mild tigré virus and another uncharacterised virus induces symptoms in peppers a disease described as tigré, in Mexico and south Texas.
• Malva parviflora - leaf mottling, yellowing and malformation.
• Datura stramonium - severe mosaic and leaf malformation.

Transmission

Transmitted by a vector; an insect; Bemisia tabaci; Aleyrodidae. Transmitted in a persistent manner. Virus does not multiply in the vector; not transmitted congenitally to the progeny of the vector; not transmitted by mechanical inoculation; transmitted by grafting; not transmitted by contact between plants; not transmitted by seed.

Ecology and control

Studies reported by Brown and Nelson (1988).

Geographical distribution

Spreads in Mexico and the USA.

Experimental host range

Several (3-9) families susceptible. Experimentally infected plants mostly show systemic mosaics, mottles, ringspots or necrosis and leaf curling.

Diagnostically susceptible host species and symptoms

• Lycopersicon esculentum cv. Pole Boy, Malva parviflora, Nicotiana benthamiana, Datura stramonium, Lens culinaris cv. Chilean Lentil 78 - systemic mottling and leaf curling.

Diagnostically insusceptible host species

Lactuca sativa cv. Empire, Citrullus lanatus cv. Charleston Gray, Pisum sativum, Gossypium hirsutum cv. DP90, Solanum melongena cv. Black Beauty.

Maintenance and propagation hosts

Lycopersicon esculentum cv. Pole Boy, Datura stramonium, Nicotiana benthamiana.

Assay hosts (Local lesions or Whole plants)

Lycopersicon esculentum (W), Datura stramonium (W), Capsicum annuum (W), Lens culinaris (W).

Susceptible host species

• Capsicum annuum
• Capsicum frutescens
• Datura stramonium
• Datura tatula
• Lens culinaris
• Lycopersicon esculentum
• Lycopersicon pimpinellifolium
• Malva parviflora
• Nicotiana benthamiana
• Nicotiana clevelandii
• Nicotiana glutinosa
• Nicotiana rustica
• Nicotiana tabacum
• Phaseolus vulgaris

Insusceptible host species

• Beta vulgaris
• Capsella bursa-pastoris
• Chenopodium album
• Cicer arietinum
• Citrullus lanatus
• Cucumis melo
• Cucumis sativus
• Cucurbita maxima
• Daucus carota
• Gomphrena globosa
• Gossypium hirsutum
• Helianthus annuus
• Lactuca sativa
• Medicago sativa
• Physalis peruviana
• Pisum sativum
• Raphanus sativus
• Solanum melongena
• Solanum tuberosum
• Sonchus oleraceus
• Spinacia oleracea
• Vicia faba
• Vigna unguiculata
• Zea mays
• Zinnia elegans

Families containing susceptible hosts

• Leguminosae-Papilionoideae (2/7)
• Malvaceae (1/2)
• Solanaceae (11/14)

Families containing insusceptible hosts

• Amaranthaceae (1/1)
• Chenopodiaceae (3/3)
• Compositae (4/4)
• Cruciferae (2/2)
• Cucurbitaceae (4/4)
• Gramineae (1/1)
• Leguminosae-Papilionoideae (5/7)
• Malvaceae (1/2)
• Solanaceae (3 /14)
• Umbelliferae (1/1)

Sources of host-range data

Brown and Nelson (1988).

Physical and biochemical properties

Properties of particles in sap

Leaf sap contains few virions. Electron microscopy: labile even after fixation with buffered (pH 7) 0.25% glutaraldehyde.

Particle morphology

Virions geminate; 20 nm in diameter; 30 nm in length.

Biochemical properties

Virions contain 20 % nucleic acid; 80 % protein.

Genome consists of DNA; single-stranded; circular. Total genome size 5.2 kb. Genome of two parts; largest (or only) genome part the larger 2.6-2.7 kb; the 2nd largest 2.6-2.7 kb.

Taxonomy and relationships

bigeminivirus: Geminiviridae

Comments and References

References

• Brown, J.K. and Hine, R.B. (1984). Phytopathology 74: 844.
• Brown, J.K. and Nelson, M.R. (1988). Plant Dis. 72: 866.
• Brown, J.K., Goldstein, D.E. and Nelson, M.R. (1986). Phytopathology 76: 862.

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.