Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Pepper mild tigré (?) bigeminivirus

Index

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

Data collated by J.K. Brown, 1989.

Nomenclature

Synonyms

tigre disease geminivirus.

Acronym

PepMTV

ICTV decimal code

29.0.3.0.029

Host range and symptoms

Natural host range and symptoms

Symptoms persist and vary seasonally.
• Capsicum annuum cvs Jalapeno and Serrano - mild yellow leaf curling and mosaic.

Transmission

Transmitted by a vector; an insect; Bemisia tabaci; Aleyrodidae. Transmitted in a persistent manner. Virus not transmitted by mechanical inoculation; transmitted by grafting; not transmitted by contact between plants; not transmitted by seed.

Geographical distribution

Spreads in Mexico and the USA (Texas).

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Capsicum annuum cvs Anahiem, Serrano and Tabasco - systemic yellow leaf curling.
• Lycopersicon esculentum cv. Pole Boy - systemic yellow mosaic or leaf curling.

Diagnostically insusceptible host species

Cucumis melo cv. Topmark, C. sativus cv. Straight eight, Gossypium hirsutum cv. DP90, Malva parviflora, Glycine max cv. Frost beater.

Maintenance and propagation hosts

Lycopersicon esculentum, Capsicum annuum.

Assay hosts (Local lesions or Whole plants)

Capsicum annuum (W), Lycopersicon esculentum (W).

Susceptible host species

• Capsicum annuum
• Capsicum frutescens
• Lycopersicon esculentum

Insusceptible host species

• Cassia obtusifolia
• Chenopodium album
• Citrullus lanatus
• Cucumis melo
• Cucumis sativus
• Cucurbita maxima
• Glycine max
• Gossypium hirsutum
• Helianthus annuus
• Lactuca sativa
• Malva parviflora
• Solanum melongena
• Vigna unguiculata
• Zinnia elegans

Families containing susceptible hosts

• Solanaceae (3/4)

Families containing insusceptible hosts

• Chenopodiaceae (1/1)
• Compositae (3/3)
• Cucurbitaceae (4/4)
• Leguminosae-Caesalpinioideae (1/1)
• Leguminosae-Papilionoideae (2/2)
• Malvaceae (2/2)
• Solanaceae (1/4)

Sources of host-range data

Brown et al. (1989).

Physical and biochemical properties

Properties of particles in sap

Leaf sap contains few virions. Electron microscopy: fix with buffered (pH 7.0) 0.25% glutaraldehyde.

Particle morphology

Virions geminate; 20 nm in diameter; dimers 30 nm in length; without a conspicuous capsomere arrangement.

Biochemical properties

Genome consists of DNA; single-stranded.

Sequence database accession code(s)

• L27270 Em(40)_vi:GEPEMAC1A Gb(84)_vi:PEMAC1A Pepper geminivirus replication-associated protein (AC1) gene, 3´ end. 1/94 299bp
• L27271 Em(40)_vi:GEPEMBC1A Gb(84)_vi:PEMBC1A Pepper geminivirus movement protein (BC1) gene, partial cds. 1/94 222bp. 2 sequences.

Taxonomy and relationships

Possible bigeminivirus: Geminiviridae

Comments and References

General comments

Alone, the virus induces mild leaf symptoms in pepper, but peppers also containing chino del tomaté virus and another uncharacterised whitefly transmitted virus have the tigré disease.

References

• Brown, J.K. and Nelson, M.R. (1989). Phytopathology 79: 908.
• Brown, J.K., Campodonico O.P. and Nelson, M.R. (1989). Plant Dis. 73: 610.

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.