Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Scrophularia mottle tymovirus

Index

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

Data collated by A.J. Gibbs, 1991.

Nomenclature

Synonyms

scrophularia-Scheckungsvirus.

Acronym

ScrMV

ICTV decimal code

77.0.1.0.015

Host range and symptoms

Natural host range and symptoms

Symptoms persist. Symptoms mottling.
• Scrophularia nodosa - mottling and vein clearing.

Transmission

Transmitted by a vector; an insect; Cionus tuberculosis, C. scrophularia, C. hortulanus, C. alauda; Coleoptera. Virus transmitted by mechanical inoculation.

Geographical distribution

Spreads in Germany.

Experimental host range

Several (3-9) families susceptible. Experimentally infected plants mostly show local lesions, systemic mottle or mosaic.

Diagnostically susceptible host species and symptoms

• Antirrhinum majus - systemic green spots.
• Chenopodium quinoa - chlorotic local lesions, systemic mosaic.
• Datura stramonium - yellow spreading local lesions, systemic spotting and mosaic.
• Vicia faba - chlorotic local lesions.

Diagnostically insusceptible host species

Arachis hypogaea, Brassica campestris ssp. pekinensis, Cucumis sativus, Petunia × hybrida.

Maintenance and propagation hosts

Antirrhinum majus, Datura stramonium.

Assay hosts (Local lesions or Whole plants)

Vicia faba (L).

Susceptible host species

• Antirrhinum majus
• Catalpa bignonioides
• Catharanthus roseus
• Chenopodium quinoa
• Datura stramonium
• Pisum sativum
• Scrophularia nodosa
• Valerianella
• Vicia faba

Insusceptible host species

• Arachis hypogaea
• Bellis perennis
• Beta vulgaris
• Brassica campestris ssp. pekinensis
• Cassia artemisioides
• Cucumis sativus
• Daucus carota
• Delphinium hybridum
• Eucalyptus cloeziana
• Euphorbia marginata
• Fagopyrum esculentum
• Fragaria vesca
• Gossypium hirsutum
• Gypsophila elegans
• Helianthus annuus
• Ipomoea purpurea
• Lactuca sativa
• Leptosiphon
• Lobelia erinus
• Myosotis sylvatica
• Papaver nudicaule
• Pastinaca sativa
• Petroselinum crispum
• Petunia × hybrida
• Podolepis robusta
• Salvia splendens
• Sinningia speciosa
• Tropaeolum majus
• Vigna radiata
• Viola cornuta

Families containing susceptible hosts

• Apocynaceae (1/1)
• Bignoniaceae (1/1)
• Chenopodiaceae (1/2)
• Leguminosae-Papilionoideae (2/4)
• Scrophulariaceae (2/2)
• Solanaceae (1/2)
• Valerianaceae (1/1)

Families containing insusceptible hosts

• Boraginaceae (1/1)
• Campanulaceae (1/1)
• Caryophyllaceae (1/1)
• Chenopodiaceae (1/2)
• Compositae (4/4)
• Convolvulaceae (1/1)
• Cruciferae (1/1)
• Cucurbitaceae (1/1)
• Euphorbiaceae (1/1)
• Gesneriaceae (1 /1)
• Labiatae (1/1)
• Leguminosae-Caesalpinioideae (1/1)
• Leguminosae-Papilionoideae (2/4)
• Malvaceae (1/1)
• Myrtaceae (1/1)
• Papaveraceae (1/1)
• Polemoniaceae (1/1)
• Polygonaceae (1/1)
• Ranunculaceae (1 /1)
• Rosaceae (1/1)
• Solanaceae (1/2)
• Tropaeolaceae (1/1)
• Umbelliferae (3/3)
• Violaceae (1/1)

Sources of host-range data

Bercks (1973); Hein (1959); Guy et al. (1984).

Physical and biochemical properties

Properties of particles in sap

TIP: 90 °C. LIV: 30 days. DEP: log₁₀ minus 5-6. Infectivity of sap not changed by treatment with di-ethyl ether. Leaf sap contains many virions.

Purification method

Bercks (1973).

Particle morphology

Virions isometric; not enveloped; 26 nm in diameter; rounded in profile; with a conspicuous capsomere arrangement.

Physical properties

Two sedimenting components in purified preparations; sedimentation coefficient of the fastest 116 S; of the other(s) 54 S. Density 1.351 and 1.449 g cm^-3 in CsCl. Isoelectric point pH 7.

Biochemical properties

Virions contain 37 % nucleic acid; 63 % protein; 0 % lipid.

Genome consists of RNA; single-stranded; linear. Total genome size 6 kb. Genome unipartite; largest (or only) genome part 6 kb. Base composition 15.9 % G; 21.3 % A; 33.7 % C; 29.3 % U.

Features of proteins

Virion protein(s) one; M_r 21600; coat protein. Amino acid composition: Bercks (1973).

Replication

Replication does not depend on a helper virus.

Cytopathology

Virions found in all parts of the host plant.

Taxonomy and relationships

Tymovirus

Virus(es) with serologically related virions

Ononis yellow mosaic virus is the closest related, but also Andean potato latent, belladonna mottle, dulcamara mottle, eggplant mosaic and turnip yellow mosaic viruses. A virus from Anagyris foetida in Italy is closely related (Rana et al., 1988).

Best tests for diagnosis

Virions serologically close to ononis yellow mosaic virus but the virions of ononis yellow mosaic virus have a lesser IEP.

Comments and References

References

• Bercks, R. (1973). CMI/AAB Descr. Pl. Viruses No. 113.
• Bercks, R., Huth, W., Koenig, R., Lesemann, D.-E., Paul, H.L. and Querfurth, G. (1971). Phytopath. Z. 71: 341.
• Guy, P.L., Dale, J.L., Adena, M.A. and Gibbs, A.J. (1984). Pl. Path. 33: 337.
• Hein, A. (1959). Phytopath. Z. 36: 290.
• Rana, G.L., Castellano, M.A. and Koenig, R. (1988). J. Phytopath. 121: 239.

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.