Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Festuca necrosis (?) closterovirus

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

Acronym

FNV

ICTV decimal code

17.0.1.T.U.02

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Festuca pratensis, Lolium multiflorum - death of stems and plants.

Transmission

Transmitted by a vector; an insect; Rhopalosiphum padi; Aphididae.

Geographical distribution

Spreads in Germany.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Festuca pratensis, Lolium multiflorum - leaf and stem necrosis.

Maintenance and propagation hosts

Festuca pratensis, Lolium multiflorum.

Assay hosts (Local lesions or Whole plants)

Festuca pratensis (W), Lolium multiflorum (W).

Susceptible host species

• Festuca pratensis
• Lolium multiflorum

Families containing susceptible hosts

• Gramineae (2/2)

Physical and biochemical properties

Properties of particles in sap

Leaf sap contains few virions.

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 1725 nm; 18 nm wide. Axial canal obscure. Basic helix obscure.

Taxonomy and relationships

Possible Closterovirus

Comments and References

References

• Schmidt, H.B., Richter, J., Hertzsch, W. and Klinkowski, M. (1963). Phytopath. Z. 47: 66.

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.