Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Centrosema mosaic (?) potexvirus

Index

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

Data collated by A.J. Gibbs, 1985. Revised 1987.

Nomenclature

Acronym

CenMV

ICTV decimal code

56.0.1.T.006

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Centrosema pubescens, Crotalaria anagyroides, C. retusa, C. goreensis, C. mucronata, Calopogonium mucunoides (which sets no seeds), Desmodium distortum - vein-clearing, mosaic, leaf malformation.

Transmission

Transmitted by a vector; an insect; Heteroptera: Lygaeidae and Nysius spp.; an unusual insect group. Transmitted in a non-persistent manner. Virus transmitted by mechanical inoculation; transmitted by grafting; not transmitted by contact between plants; not transmitted by seed.

Geographical distribution

Spreads in Papua New Guinea.

Experimental host range

Few (<3) families susceptible. Experimentally infected plants mostly show mosaic.

Diagnostically susceptible host species and symptoms

• Crotalaria spectabilis, C. juncea, C. retusa, C. anagyroides, Centrosema pubescens and Trifolium subterraneum - mosaic.

Diagnostically insusceptible host species

Nicotiana tabacum, Phaseolus vulgaris, Pisum sativum, Vicia faba, Vigna unguiculata.

Maintenance and propagation hosts

Crotalaria anagyroides.

Assay hosts (Local lesions or Whole plants)

Crotalaria anagyroides (W).

Susceptible host species

• Calopogonium mucunoides
• Centrosema
• Centrosema pubescens
• Crotalaria anagyroides
• Crotalaria goreensis
• Crotalaria juncea
• Crotalaria mucronata
• Crotalaria retusa
• Crotalaria spectabilis
• Desmodium distortum
• Trifolium subterraneum

Insusceptible host species

• Arachis hypogaea
• Chenopodium amaranticolor
• Cicer arietinum
• Cucumis sativus
• Datura stramonium
• Glycine max
• Lupinus albus
• Lupinus angustifolius
• Lycopersicon esculentum
• Medicago sativa
• Nicotiana glutinosa
• Nicotiana rustica
• Nicotiana tabacum
• Petunia × hybrida
• Phaseolus lunatus
• Phaseolus vulgaris
• Pisum sativum
• Sesbania exaltata
• Trifolium hybridum
• Trifolium incarnatum
• Trifolium pratense
• Trifolium repens
• Vicia faba
• Vigna unguiculata
• Vigna unguiculata ssp. cylindrica
• Vigna unguiculata ssp. sesquipedalis

Families containing susceptible hosts

• Leguminosae-Papilionoideae (11/29)

Families containing insusceptible hosts

• Chenopodiaceae (1/1)
• Cucurbitaceae (1/1)
• Leguminosae-Papilionoideae (18/29)
• Solanaceae (6/6)

Physical and biochemical properties

Properties of particles in sap

TIP: 55-58 °C. LIV: 0.25 days. DEP: log₁₀ minus 3-4.

Purification method

Crowley and Francki, 1963.

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 580 nm. Axial canal obscure.

Taxonomy and relationships

Possible Potexvirus

Comments and References

References

• Crowley, N.C. and Francki, R.I.B. (1963). Aust. J. biol. Sci. 16: 468.
• Van Velsen, R.J. and Crowley, N.C. (1962). Aust. J. agric. Sci. 13: 220.

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.