Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Amaranthus leaf mottle potyvirus

Index

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

Data collated by S. Phillips and O. Lovisolo, 1992.

Nomenclature

Acronym

AmLMV

Strains

type and Cirsium (Casetto et al., 1986).

ICTV decimal code

57.0.1.0.003

Host range and symptoms

Natural host range and symptoms

Symptoms leaf mottling.
• Amaranthus deflexus - leaf mottling, blistered mosaic and growth reduction.
• Cirsium arvense - leaf mottling.

Transmission

Transmitted by a vector; an insect; Macrosiphum euphorbiae, Myzus persicae; Aphididae. Transmitted in a non-persistent manner. Virus transmitted by mechanical inoculation.

Geographical distribution

Spreads in the Eurasian region; Italy, Morocco, and Spain.

Experimental host range

Several (3-9) families susceptible. Experimentally infected plants mostly show local chlorotic lesions; systemic chlorosis.

Diagnostically susceptible host species and symptoms

• Amaranthus caudatus, A. hybridus, A. tricolor, Gomphrena globosa, Nicotiana clevelandii - systemic leaf chlorosis.
• Chenopodium quinoa, C. amaranticolor - chlorotic local lesions, systemic mottling. Phaseolus vulgaris cv. Saxa - chlorotic local lesions, not systemic.

Diagnostically insusceptible host species

Cucurbita pepo, Cucumis sativus, Nicotiana glutinosa, Pisum sativum, Vigna unguiculata.

Maintenance and propagation hosts

Chenopodium quinoa, Nicotiana clevelandii.

Assay hosts (Local lesions or Whole plants)

Chenopodium quinoa (L), C. amaranticolor (L).

Susceptible host species

• Amaranthus caudatus
• Amaranthus deflexus
• Amaranthus hybridus
• Amaranthus retroflexus
• Amaranthus tricolor
• Atriplex hortensis
• Chenopodium album
• Chenopodium amaranticolor
• Chenopodium murale
• Chenopodium quinoa
• Cirsium arvense
• Gomphrena globosa
• Lupinus albus
• Nicotiana clevelandii
• Nicotiana debneyi
• Nicotiana rustica
• Nicotiana tabacum
• Ocimum basilicum
• Petunia × hybrida
• Phaseolus vulgaris
• Spinacia oleracea
• Tetragonia tetragonioides
• Vicia faba

Insusceptible host species

• Beta vulgaris
• Capsicum annuum
• Celosia cristata
• Cucumis sativus
• Cucurbita pepo
• Datura stramonium
• Lycopersicon esculentum
• Nicotiana glutinosa
• Pisum sativum
• Trifolium pratense
• Vigna unguiculata

Families containing susceptible hosts

• Amaranthaceae (6/7)
• Chenopodiaceae (6/7)
• Compositae (1/1)
• Labiatae (1/1)
• Leguminosae-Papilionoideae (3/6)
• Solanaceae (5/9)
• Tetragoniaceae (1/1)

Families containing insusceptible hosts

• Amaranthaceae (1/7)
• Chenopodiaceae (1/7)
• Cucurbitaceae (2/2)
• Leguminosae-Papilionoideae (3/6)
• Solanaceae (4/9)

Sources of host-range data

Lovisolo and Lisa (1976 and 1979); Casetto et al. (1986).

Purification method

Lovisolo and Lisa (1979).

Physical and biochemical properties

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 780 nm; 12 nm wide. Axial canal obscure. Basic helix obscure.

Physical properties

One sedimenting component in purified preparations. A₂₆₀/A₂₈₀ ratio 1.16.

Replication

Replication does not depend on a helper virus.

Cytopathology

Virions found in leaves.

Taxonomy and relationships

Potyvirus: Potyviridae

Virus(es) with serologically related virions

Plum pox and bean yellow mosaic viruses, also Lisianthus potyvirus (Lisa et al., 1990), peanut mottle (Rajeshwari et al., 1983) and zucchini yellow mosaic (Lisa and Lecoq, 1984) viruses distantly.

Virus(es) with serologically unrelated virions

Clover yellow vein (English isolate and pea necrosis strain), lettuce mosaic, watermelon mosaic 2, wisteria vein mosaic, celery mosaic, henbane mosaic, potato Y, turnip mosaic and papaya ringspot viruses.

Differences between type strain and others

The Cirsium strain infects Cirsium arvense, Lactuca sativa, Physalis floridana and Trigonella foenum-graecum.

Best tests for diagnosis

ISEM and decoration.

Comments and References

References

• Casetta, A., D'Agostino, G. and Conti, M. (1986). Inform. Fitopatol. 36:43
• Lisa, V., Dellavalle, G., Vaira, A.M., Milne, R.G., Masenga, V., Boccardo, G. and D'Aquilio, M. (1990).
• Lisa, V. and Lecoq, H. (1984). CMI/AAB Descr. Pl. Viruses No. 282, 4pp.
• Lovisolo, O., Caciagli, P. and Conti, M. (1980). Proc. 5th Congr. Un. Phytopath. Medit. Patras, Greece, pp.22-24.
• Lovisolo, O. and Lisa, V. (1976). Agric. Scient. 39: 553.
• Lovisolo, O. and Lisa, V. (1979). Phytopath. Medit. 18: 89.
• Rajeshwari, R., Iizuka, N., Nolt, B.L. and Reddy, D.V.R. (1983). Plant Path. 32: 197.

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.