Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Alstroemeria (?) ilarvirus

Index

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

Data collated by S. Phillips, 1987.

Nomenclature

ICTV decimal code

10.0.2.T.DE.1

Host range and symptoms

Natural host range and symptoms

• Alstroemeria caryophylla `Ligtu' hybrids - faint chlorosis.

Transmission

Virus transmitted by mechanical inoculation; not transmitted by contact between plants.

Geographical distribution

Found, but with no evidence of spread, in England.

Experimental host range

Several (3-9) families susceptible (but only 6 families have been tested). Experimentally infected plants mostly show local lesions, systemic chlorosis, mosaic, mosaic line patterns.

Diagnostically susceptible host species and symptoms

• Chenopodium quinoa, C. amaranticolor, C. murale, Gomphrena globosa - local lesions; severe systemic chlorosis and malformation.
• Nicotiana megalosiphon - local etched rings; systemic chlorosis or white necrotic line patterns.
• Petunia × hybrida - systemic mosaic.
• Nicotiana clevelandii - systemic mild chlorotic vein-banding.

Diagnostically insusceptible host species

Lycopersicon esculentum, Nicotiana rustica, Brassica juncea.

Maintenance and propagation hosts

Nicotiana clevelandii, N. megalosiphon, N. benthamiana, Chenopodium quinoa, Petunia × hybrida.

Assay hosts (Local lesions or Whole plants)

Chenopodium quinoa (L and W), Nicotiana megalosiphon (L and W), Phaseolus vulgaris (L).

Susceptible host species

• Alstroemeria caryophylla (`Ligtu' hybrids)
• Chenopodium amaranticolor
• Chenopodium murale
• Chenopodium quinoa
• Datura stramonium
• Gomphrena globosa
• Nicotiana benthamiana
• Nicotiana clevelandii
• Nicotiana debneyi
• Nicotiana glutinosa
• Nicotiana megalosiphon
• Nicotiana tabacum
• Petunia × hybrida
• Phaseolus vulgaris
• Pisum sativum
• Tetragonia tetragonioides
• Trifolium incarnatum
• Vigna unguiculata

Insusceptible host species

• Brassica juncea
• Lycopersicon esculentum
• Nicotiana rustica

Families containing susceptible hosts

• Alstroemeriaceae (1/1)
• Amaranthaceae (1/1)
• Chenopodiaceae (3/3)
• Leguminosae-Papilionoideae (4/4)
• Solanaceae (8/10)
• Tetragoniaceae (1/1)

Families containing insusceptible hosts

• Cruciferae (1/1)
• Solanaceae (2/10)

Sources of host-range data

Phillips and Brunt (1986).

Physical and biochemical properties

Properties of particles in sap

TIP: 60 °C. DEP: log₁₀ minus 4 (purified preparation). Leaf sap contains few virions. Electron microscopy: usually only seen in purified preparations.

Purification method

Phillips and Brunt (1986).

Particle morphology

Virions isometric; not enveloped; 25-32 nm in diameter; rounded in profile; without a conspicuous capsomere arrangement.

Replication

Replication does not depend on a helper virus.

Cytopathology

Virions found in all parts of the host plant.

Taxonomy and relationships

Possible Ilarvirus: Bromoviridae

Virus(es) with serologically related virions

Prunus necrotic ringspot, spinach latent, hydrangea mosaic and tobacco streak (dewberry latent isolate) viruses.

Virus(es) with serologically unrelated virions

Asparagus 2, crimson clover latent, elm mottle and tobacco streak (asparagus and dahlia isolates) viruses.

Comments and References

References

• Brunt, A.A. and Phillips, S. (1981). Rep. Glasshouse Crops Res. Inst. 1979, p. 151.
• Phillips, S. and Brunt, A.A. (1986). Acta Hort. 177: 227.

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: 16^th January 1997.' URL http://biology.anu.edu.au/Groups/MES/vide/

Dallwitz (1980) and Dallwitz, Paine and Zurcher (1993) should also be cited.