Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Alstroemeria mosaic potyvirus

Index

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

Data collated by S. Phillips, 1986.

Nomenclature

Acronym

AlMV

ICTV decimal code

57.0.1.0.002

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Alstroemeria caryophylla and Alstroemeria psittacina - some flower break and variable leaf chlorosis.

Transmission

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

Geographical distribution

Spreads in the Eurasian region and the North American region; the Netherlands and the USA.

Experimental host range

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

Diagnostically susceptible host species and symptoms

• Nicotiana clevelandii, N. megalosiphon, N. benthamiana - faint chlorotic lesions and mild systemic veinal chlorosis.
• Chenopodium quinoa, C. murale, C. capitatum, Tetragonia tetragonioides - chlorotic local lesions, not systemic.

Diagnostically insusceptible host species

Narcissus pseudonarcissus, Cucumis sativus, Belamcanda chinensis, Trifolium incarnatum, Solanum tuberosum.

Maintenance and propagation hosts

Nicotiana clevelandii, N. benthamiana, N. megalosiphon.

Assay hosts (Local lesions or Whole plants)

Nicotiana clevelandii (W), Chenopodium quinoa (L), C. murale (L).

Susceptible host species

• Alstroemeria caryophylla
• Alstroemeria psittacina
• Chenopodium capitatum
• Chenopodium murale
• Chenopodium quinoa
• Nicandra physalodes
• Nicotiana benthamiana
• Nicotiana clevelandii
• Nicotiana megalosiphon
• Nicotiana plumbaginafolia
• Nicotiana sylvestris
• Nicotiana tabacum
• Petunia × hybrida
• Tetragonia tetragonioides

Insusceptible host species

• Amaranthus caudatus
• Belamcanda chinensis
• Beta vulgaris
• Brassica campestris ssp. pekinensis
• Capsicum frutescens
• Chenopodium amaranticolor
• Cucumis sativus
• Datura stramonium
• Gomphrena globosa
• Hyoscyamus niger
• Lilium formosanum
• Lycopersicon esculentum
• Narcissus pseudonarcissus
• Nicotiana debneyi
• Nicotiana glutinosa
• Nicotiana rustica
• Phaseolus vulgaris
• Physalis floridana
• Solanum demissum
• Solanum tuberosum
• Trifolium incarnatum
• Vicia faba
• Vigna unguiculata

Families containing susceptible hosts

• Alstroemeriaceae (2/2)
• Chenopodiaceae (3/5)
• Solanaceae (8/18)
• Tetragoniaceae (1/1)

Families containing insusceptible hosts

• Amaranthaceae (2/2)
• Amaryllidaceae (1/1)
• Chenopodiaceae (2/5)
• Cruciferae (1/1)
• Cucurbitaceae (1/1)
• Iridaceae (1/1)
• Leguminosae-Papilionoideae (4/4)
• Liliaceae (1/1)
• Solanaceae (10 /18)

Sources of host-range data

Phillips and Brunt (1986).

Physical and biochemical properties

Properties of particles in sap

TIP: 65 °C. DEP: log₁₀ minus 4. Leaf sap contains few virions.

Purification method

Phillips and Brunt (1986).

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 745-750 nm. Axial canal obscure. Basic helix obscure.

Physical properties

One sedimenting component in purified preparations; sedimentation coefficient 145 S. Density 1.296 g cm^-3 in CsCl.

Biochemical properties

Virions contain 5 % nucleic acid; 95 % protein; 0 % lipid.

Genome consists of RNA; single-stranded; unipartite. Genomic nucleic acid isolated by Brunt et al. (1980).

Features of the genome

Non-genomic nucleic acid not found in the virions.

Features of proteins

Virion protein(s) one; M_r 32500; coat protein. Method of preparation: Brunt et al. (1980).

Replication

Replication does not depend on a helper virus.

Cytopathology

Virions found in mesophyll, epidermis and all parts of the host plant; in cytoplasm. Inclusions present in infected cells; are pinwheels and unusual in shape; conical or cylindrical.

Taxonomy and relationships

Potyvirus: Potyviridae

Virus(es) with serologically related virions

Iris severe mosaic (SDI 2), narcissus late season yellows (SDI 2), potato Y (SDI 3-7), clover yellow vein (SDI 7), watermelon mosaic 2 (SDI 7) and pea mosaic (SDI 9) viruses.

Virus(es) with serologically unrelated virions

Asparagus I, bean yellow mosaic (crocus and gladiolus isolates), carnation vein mottle, datura shoestring, henbane mosaic, hippeastrum mosaic, iris mild mosaic, lettuce mosaic, narcissus degeneration, narcissus yellow stripe, nerine yellow stripe, passiflora woodiness, pepper veinal mottle, potato Y (veinal necrosis strain), tobacco etch and turnip mosaic viruses.

Best tests for diagnosis

ISEM with `decoration'.

Comments and References

References

• Brunt, A.A. (1975). Rep. Glasshouse Crops Res. Inst. for 1974: 117.
• Brunt, A.A. Barton, R.J., Phillips, S. and Lana, A.O. (1980). Ann. appl. Biol. 96: 37.
• Phillips, S. and Brunt, A.A. (1986). Acta Hort. 177: 227.
• Maat, D.Z. (1977). Rep. Res. Inst. Pl. Prot. for 1976: p.63.

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.