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Descriptions and Lists from the VIDE Database

Tomato Peru potyvirus

Index

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

Data collated by E.N. Fernandez-Northcote, 1985.

Nomenclature

Synonyms

Peru tomato mosaic virus, Peru tomato virus, Peruvian tomato virus, virus Peruano del tomate.

Acronym

PTV

Strains

M; N; O^c; O^m; O^s.

ICTV decimal code

57.0.1.0.053

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Capsicum annuum, C. baccatum var. pendulum, C. chinense, Physalis peruviana - mosaic, green vein banding.
• Lycopersicon esculentum - vein clearing, twisting, mosaic, stem and leaf necrosis by some strains, fruit mottling.
• Solanum nigrum, Nicandra physalodes - leaf chlorosis.

Transmission

Transmitted by a vector; an insect; Myzus persicae; Aphididae. Transmitted in a non-persistent manner. Virus transmitted by mechanical inoculation; transmitted by grafting; not transmitted by seed.

Geographical distribution

Spreads in Peru.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Chenopodium amaranticolor, C. quinoa - chlorotic local lesions; not systemic.
• Lycopersicon esculentum - systemic leaf chlorosis and/or necrosis, epinasty, apical necrosis and stunting.
• Nicotiana occidentalis - systemic chlorotic blotching and leaf malformation.
• Nicotiana debneyi - systemic chlorotic rings and spots.
• N. glutinosa - systemic mosaic.

Diagnostically insusceptible host species

Gomphrena globosa, Capsicum annuum cv. Agronomico 8, Datura stramonium, Solanum demissum × S. tuberosum cv. A6, S. tuberosum cv. Katahdin.

Maintenance and propagation hosts

Lycopersicon esculentum, Nicotiana glutinosa, N. occidentalis, N. tabacum cvs Burley 21, White Burley.

Assay hosts (Local lesions or Whole plants)

Chenopodium amaranticolor (L), Nicotiana occidentalis (W), N. tabacum cv. Burley 21 (W).

Susceptible host species

• Capsicum annuum
• Capsicum baccatum var. pendulum
• Capsicum chinense
• Capsicum frutescens
• Chenopodium amaranticolor
• Chenopodium quinoa
• Datura metel
• Lycopersicon esculentum
• Lycopersicon pimpinellifolium
• Nicandra physalodes
• Nicotiana bigelovii
• Nicotiana clevelandii
• Nicotiana debneyi
• Nicotiana glutinosa
• Nicotiana megalosiphon
• Nicotiana occidentalis
• Nicotiana rustica
• Nicotiana sylvestris
• Nicotiana tabacum
• Petunia × hybrida
• Physalis floridana
• Physalis peruviana
• Solanum nigrum

Insusceptible host species

• Apium graveolens
• Beta patellaris
• Beta vulgaris
• Brassica oleracea var. capitata
• Capsicum annuum (cv. Agronomico 8)
• Cassia occidentalis
• Catharanthus roseus
• Celosia argentea
• Chenopodium album
• Chenopodium amaranticolor
• Chenopodium quinoa
• Citrullus lanatus
• Crotalaria spectabilis
• Cucumis melo
• Cucumis sativus
• Cucurbita maxima
• Cucurbita pepo
• Datura stramonium
• Dianthus barbatus
• Glycine max
• Gomphrena globosa
• Gossypium hirsutum
• Helianthus annuus
• Lactuca sativa
• Momordica balsamina
• Ocimum basilicum
• Phaseolus lunatus
• Phaseolus vulgaris
• Pisum sativum
• Raphanus sativus
• Ricinus communis
• Sesamum indicum
• Sesbania exaltata
• Solanum demissum × S. tuberosum (cv. A6)
• Solanum tuberosum
• Trifolium hybridum
• Verbesina encelioides
• Vicia faba
• Vigna angularis
• Vigna radiata
• Vigna unguiculata
• Vigna unguiculata ssp. cylindrica
• Vigna unguiculata ssp. sesquipedalis
• Zinnia elegans

Families containing susceptible hosts

• Chenopodiaceae (2/5)
• Solanaceae (21/24)

Families containing insusceptible hosts

• Amaranthaceae (2/2)
• Apocynaceae (1/1)
• Caryophyllaceae (1/1)
• Chenopodiaceae (5/5)
• Compositae (4/4)
• Cruciferae (2/2)
• Cucurbitaceae (6/6)
• Euphorbiaceae (1/1)
• Labiatae (1/1)
• Leguminosae-Caesalpinioideae (1 /1)
• Leguminosae-Papilionoideae (13/13)
• Malvaceae (1/1)
• Pedaliaceae (1/1)
• Solanaceae (4/24)
• Umbelliferae (1/1)

Sources of host-range data

Fernandez-Northcote (1978); Fribourg (1979); Fernandez-Northcote and Fulton (1980).

Physical and biochemical properties

Properties of particles in sap

TIP: 55-60 °C. LIV: 10-21 days. DEP: log₁₀ minus 5-6. Leaf sap contains few virions.

Purification method

Fernandez-Northcote and Fulton (1980).

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 741-746 nm; 11-13 nm wide. Axial canal obscure. Basic helix obscure.

Physical properties

One sedimenting component in purified preparations.

Biochemical properties

Virions contain 7 % nucleic acid; 93 % protein.

Cytopathology

Virions found in all parts of the host plant; in cytoplasm. Inclusions present in infected cells; are pinwheels; they do not contain virions.

Taxonomy and relationships

Potyvirus: Potyviridae

Virus(es) with serologically related virions

Potato Y, pepper mottle, tobacco etch and bidens mottle viruses.

Virus(es) with serologically unrelated virions

Bean yellow mosaic, lettuce mosaic, pepper veinal mottle, pepper severe mosaic, potato A, tobacco vein mottling, turnip mosaic and wild potato mosaic viruses.

Best tests for diagnosis

Check for pinwheel inclusions to differentiate from tobacco mosaic virus.

Comments and References

References

• Christie, R.G. (1967). Virology 31: 268.
• Raymer, W.B., Kahn, R.P., Hikida, H.R. and Waterworth, H.E. (1972). Phytopathology 62: 784.
• Fernandez-Northcote, E.N. (1978). Ph.D. Thesis, Univ. Wisconsin, U.S.A.
• Fribourg, C.S. (1979). Phytopathology 69: 441.
• Fribourg, C.E. and Fernandez-Northcote, E.N. (1982). CMI/AAB Descr. Pl. Viruses No. 255, 3 pp.
• Fernandez-Northcote, E.N. and Fulton, R.W. (1980). Phytopathology 70: 315.

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.