Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Melandrium yellow fleck bromovirus

Index

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

Data collated by J. Horváth, 1987.

Nomenclature

Acronym

MYFV

ICTV decimal code

10.0.3.0.006

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Melandrium album - systemic vein clearing and yellow flecks.

Transmission

Virus transmitted by mechanical inoculation; not transmitted by seed.

Geographical distribution

Spreads in Hungary.

Experimental host range

Many (>9) families susceptible.

Diagnostically susceptible host species and symptoms

• Chenopodium quinoa, Phaseolus vulgaris - necrotic local lesions.
• Nicotiana clevelandii - chlorotic/necrotic local lesions, then systemic mottle.
• Gomphrena globosa - necrotic local lesions, then systemic mottle.
• Datura stramonium - chlorotic spots, not systemic.
• Nicotiana glutinosa - chlorotic local lesions.
• Tetragonia tetragonioides - necrotic local lesions, then systemic vein yellowing.
• Lycium barbarum - chlorotic/necrotic local lesions.
• Physalis aequata - chlorotic/necrotic systemic vein clearing, mosaic.

Diagnostically insusceptible host species

Dianthus caryophyllus cv. Joker, Brassica campestris ssp. pekinensis, B. oleracea, Crambe abyssinica, Trifolium incarnatum.

Maintenance and propagation hosts

Nicotiana clevelandii, Gomphrena globosa, Melandrium album, Tropaeolum majus, Physalis franchetii.

Assay hosts (Local lesions or Whole plants)

Chenopodium quinoa (L), C. amaranticolor (L), Phaseolus vulgaris (L), Emilia flammea (L), Phaseolus tuberosus (L), Gomphrena globosa (W), Pisum sativum (W), Nolana prostrata (W).

Susceptible host species

• Calendula officinalis
• Chenopodium amaranticolor
• Chenopodium hybridum
• Chenopodium murale
• Chenopodium quinoa
• Cucumis sativus
• Cucurbita maxima
• Cucurbita moschata
• Datura ferox
• Datura metel
• Datura stramonium
• Dianthus caryophyllus
• Emilia flammea
• Gomphrena globosa
• Helianthus annuus
• Lycium barbarum
• Melandrium album
• Nicandra physalodes
• Nicotiana clevelandii
• Nicotiana glutinosa
• Nicotiana glutinosa × N. clevelandii
• Nicotiana tabacum
• Nolana prostrata
• Petunia × hybrida
• Phaseolus acutifolius
• Phaseolus lunatus
• Phaseolus tuberosus
• Phaseolus vulgaris
• Physalis aequata
• Physalis floridana
• Physalis franchetii
• Pisum sativum
• Tetragonia tetragonioides
• Tropaeolum majus
• Vicia faba

Insusceptible host species

• Brassica campestris ssp. pekinensis
• Brassica oleracea
• Crambe abyssinica
• Dianthus caryophyllus (cv. Joker)
• Trifolium incarnatum

Families containing susceptible hosts

• Amaranthaceae (1/1)
• Caryophyllaceae (2/2)
• Chenopodiaceae (4/4)
• Compositae (3/3)
• Cucurbitaceae (3/3)
• Leguminosae-Papilionoideae (6/7)
• Nolanaceae (1/1)
• Solanaceae (13/13)
• Tetragoniaceae (1 /1)
• Tropaeolaceae (1/1)

Families containing insusceptible hosts

• Caryophyllaceae (1/2)
• Cruciferae (3/3)
• Leguminosae-Papilionoideae (1/7)

Sources of host-range data

Horváth et al. (1988).

Physical and biochemical properties

Properties of particles in sap

TIP: 85 °C. LIV: 25 days. DEP: log₁₀ minus 5.

Purification method

Hollings et al. (1981).

Particle morphology

Virions isometric; 25 nm in diameter.

Biochemical properties

Virions contain 20 % nucleic acid.

Genome consists of RNA; single-stranded.

Cytopathology

Virions found in leaves, roots and stems.

Taxonomy and relationships

Bromovirus: Bromoviridae

Comments and References

References

• Hollings, M. and Horváth, J. (1978). Rep. Glasshouse Crops Res. Inst. 1977, p.129.
• Hollings, M. and Horváth, J. (1981). CMI/AAB Descr. Pl. Viruses No. 236, 4 pp.
• Hollings, M., Horváth, J. and Besada, W.H. (1981). 3rd Int. Congr. Pl. Path., München, 1978 p.26.
• Horváth, J., Hollings, M. and Barton, R.J. (1988). Acta Phytopath. Ent. 23: 449.

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.