Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Commelina X potexvirus

Index

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

Data collated by A.A. Brunt, 1987.

Nomenclature

Acronym

ComVX

ICTV decimal code

56.0.1.0.006

Host range and symptoms

Natural host range and symptoms

• Commelina diffusa - necrotic streaks, malformation.

Transmission

Virus transmitted by mechanical inoculation; not transmitted by seed.

Experimental host range

Several (3-9) families susceptible. Experimentally infected plants mostly show symptomless or chlorotic or necrotic local lesions, symptomless infection.

Diagnostically susceptible host species and symptoms

• Datura stramonium, Nicotiana clevelandii, N. debneyi, N. glutinosa, Trifolium incarnatum - symptomless local and systemic infection.
• Chenopodium quinoa, C. murale, Tetragonia tetragonioides - chlorotic or necrotic local lesions.
• Nicotiana tabacum - symptomless local infection.

Diagnostically insusceptible host species

Chenopodium amaranticolor, Petunia × hybrida, Phaseolus vulgaris, Vicia faba, Vigna unguiculata.

Maintenance and propagation hosts

Nicotiana clevelandii.

Assay hosts (Local lesions or Whole plants)

Chenopodium murale (L).

Susceptible host species

• Chenopodium capitatum
• Chenopodium murale
• Chenopodium quinoa
• Commelina diffusa
• Datura stramonium
• Glycine max
• Gomphrena globosa
• Lycopersicon esculentum
• Nicotiana clevelandii
• Nicotiana debneyi
• Nicotiana glutinosa
• Nicotiana megalosiphon
• Nicotiana tabacum
• Tetragonia tetragonioides
• Trifolium incarnatum

Insusceptible host species

• Chenopodium amaranticolor
• Ocimum basilicum
• Petunia × hybrida
• Phaseolus vulgaris
• Vicia faba
• Vigna unguiculata

Families containing susceptible hosts

• Amaranthaceae (1/1)
• Chenopodiaceae (3/4)
• Commelinaceae (1/1)
• Leguminosae-Papilionoideae (2/5)
• Solanaceae (7/8)
• Tetragoniaceae (1/1)

Families containing insusceptible hosts

• Chenopodiaceae (1/4)
• Labiatae (1/1)
• Leguminosae-Papilionoideae (3/5)
• Solanaceae (1/8)

Sources of host-range data

Stone (1980).

Purification method

Stone (1980).

Physical and biochemical properties

Particle morphology

Virions filamentous; usually flexuous; with a clear modal length; of 550 nm. Axial canal obscure. Basic helix obscure.

Taxonomy and relationships

Potexvirus

Virus(es) with serologically related virions

Cactus X, hydrangea ringspot, lily X, narcissus mosaic, nerine X and papaya mosaic viruses.

Comments and References

References

• Stone, O.M. (1980). Acta Hort. 110: 59.

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.