Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Clover mild mosaic virus

Index

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

Data collated by B. Gerhardson. 1982. Revised 1983.

Nomenclature

ICTV decimal code

79.0.P.DE.16

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Trifolium pratense, T. hybridum - mosaic and malformation.

Transmission

Transmitted by a vector; an insect; Aphididae. Transmitted in a semi-persistent manner. Virus transmitted by mechanical inoculation.

Geographical distribution

Spreads in Sweden.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Phaseolus vulgaris - necrotic local lesions.
• Pisum sativum - systemic mosaic, ringspots, leaf shape malformation.
• Trifolium hybridum, Vicia faba - systemic mosaic, leaf malformation.

Maintenance and propagation hosts

Pisum sativum, Trifolium hybridum, Vicia faba.

Assay hosts (Local lesions or Whole plants)

Phaseolus vulgaris, Pisum sativum, Vicia faba.

Susceptible host species

• Lathyrus odoratus
• Phaseolus vulgaris
• Pisum sativum
• Trifolium hybridum
• Trifolium incarnatum
• Trifolium pratense
• Tropaeolum majus
• Vicia faba
• Vicia sativa
• Vicia villosa

Insusceptible host species

• Antirrhinum majus
• Beta vulgaris
• Brassica campestris ssp. pekinensis
• Chenopodium amaranticolor
• Chenopodium quinoa
• Cucumis sativus
• Gomphrena globosa
• Lactuca sativa
• Lycopersicon esculentum
• Medicago sativa
• Melilotus albus
• Nicotiana clevelandii
• Nicotiana glutinosa
• Nicotiana tabacum
• Petunia × hybrida
• Phaseolus vulgaris
• Physalis floridana
• Spinacia oleracea
• Tetragonia tetragonioides
• Trifolium repens
• Zinnia elegans

Families containing susceptible hosts

• Leguminosae-Papilionoideae (9/12)
• Tropaeolaceae (1/1)

Families containing insusceptible hosts

• Amaranthaceae (1/1)
• Chenopodiaceae (4/4)
• Compositae (2/2)
• Cruciferae (1/1)
• Cucurbitaceae (1/1)
• Leguminosae-Papilionoideae (4/12)
• Scrophulariaceae (1/1)
• Solanaceae (6/6)
• Tetragoniaceae (1 /1)

Sources of host-range data

Gerhardson (1977).

Physical and biochemical properties

Properties of particles in sap

TIP: 56-60 °C. LIV: 7-14 days. DEP: log₁₀ minus 3. Infectivity of sap not changed by treatment with di-ethyl ether. Leaf sap contains few virions.

Purification method

Gerhardson (1977).

Particle morphology

Virions isometric; not enveloped; 27-28 nm in diameter; rounded in profile; without a conspicuous capsomere arrangement.

Physical properties

Four sedimenting components in purified preparations; sedimentation coefficient of the fastest 121 S; of the other(s) 101 S, or 82 S, or 54 S.

Taxonomy and relationships

(ungrouped)

Virus(es) with serologically unrelated virions

Red clover mottle, broad bean stain, broad bean true mosaic, broad bean wilt, alsike clover vein mosaic and arabis mosaic viruses.

Comments and References

References

• Gerhardson, B. (1977). Phytopath. Z. 89: 116.

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.