Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Cocksfoot streak (?) potyvirus

Index

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

Data collated by A.A. Brunt, 1991.

Nomenclature

Synonyms

orchard grass mosaic virus (McKinney, 1956), cocksfoot mosaic virus (Slykhuis, 1957).

Acronym

CSV

ICTV decimal code

57.0.1.0.018

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Dactylis glomerata - chlorotic streaks on leaves; decreased tillering.

Transmission

Transmitted by a vector; an insect; Hyalopteroides humulus, Macrosiphum avenae, M. euphorbiae, Acyrthosiphon (Metopolophium) dirhodum, Myzus persicae; Aphididae. Transmitted in a non-persistent manner. Virus transmitted by mechanical inoculation; not transmitted by seed.

Geographical distribution

Spreads in the Eurasian region; Canada, the UK, and the USA.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Dactylis glomerata - chlorotic streaks in leaves; tillering and seed set reduced.
• Lolium multiflorum, L. perenne - pale green leaf streaking.
• Paspalum membranaceum, Setaria macrostachya - conspicuous yellow leaf streaking.
• Phalaris paradoxa, Lamarckia aurea - yellow leaf spotting.

Maintenance and propagation hosts

Dactylis glomerata.

Assay hosts (Local lesions or Whole plants)

Dactylis glomerata (W), Paspalum membranaceum (W).

Susceptible host species

• Anthoxanthum aristatum
• Avena strigosa
• Bromus mollis
• Dactylis glomerata
• Lagurus ovatus
• Lamarckia aurea
• Lolium multiflorum
• Lolium perenne
• Paspalum membranaceum
• Phalaris paradoxa
• Setaria macrostachya
• Setaria viridis

Insusceptible host species

• Avena sativa

Families containing susceptible hosts

• Gramineae (12/13)

Families containing insusceptible hosts

• Gramineae (1/13)

Sources of host-range data

Ohmann-Kreutzberg (1963).

Physical and biochemical properties

Properties of particles in sap

TIP: 55 °C. LIV: 16 days. DEP: log₁₀ minus 3. Leaf sap contains few virions.

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 750 nm; 13 nm wide. Axial canal obscure. Basic helix obscure.

Taxonomy and relationships

unassigned potyvirus

Virus(es) with serologically unrelated virions

Anthoxanthum mosaic potyvirus.

Comments and References

References

• Brandes, J. (1959). Phytopath. Z. 35: 205.
• Catherall, P.L. (1971). CMI/AAB Descr. Pl. Viruses No. 59, 3 pp.
• Catherall, P.L. and Griffiths, E. (1966). Ann. appl. Biol. 57: 141.
• McKinney, H.H. (1956). Pl. Dis. Reptr 40: 524.
• Ohmann-Kreutzberg, G. (1963). Phytopath. Z. 47: 113.
• Slykhuis, J. (1957). Proc. Canad. phytopath. Soc. 25: 17.
• Slykhuis, J. (1958). FAO Pl. Prot. Bull. 6: 129.
• Smith, K.M. (1952). Pl. Path. 1: 118.
• Storey, I.F. (1952). Pl. Path. 1: 101.
• Watson, M.A. and Mulligan, T.E. (1960). Rep. Rothamsted Exp. Stn for 1959, p. 101.

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.