Potato yellow dwarf virus

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Potato yellow dwarf virus
Potato Potato yellow dwarf virus Tubers.jpg
Potato tubers showing symptoms of PYDV
Scientific Classification
Order: Mononegavirales
Family: Rhabdoviridae
Genus: Nucleorhabdovirus
Species: Potato yellow dwarf virus
Potato yellow dwarf virus geographical distribution.PNG
Areas where PYDV has been confirmed (blue)
Synonyms
Potato yellow dwarf nucleorhabdovirus
PYDV

Potato yellow dwarf virus occurs principally in wild Solanaceae and has been transmitted artificially to species in the families Apocynaceae, Asteraceae, Brassicaceae, Fabaceae, Lamiaceae, Polygonaceae and Scrophulariaceae.[1][2] It is found only sporadically in potatoes (Solanum tuberosum).[3]

Symptoms[edit]

Infected plants are dwarfed and show typical yellowing and necrosis. Internal necrotic spots occur in stems, particularly in upper nodes. Pith necrosis of stems is common. Tubers are usually few, small and deformed with surface cracking and internal necrotic spots. Infected tubers hardly germinate. High temperatures favour and low temperatures delay symptom development.[3]

Control[edit]

No particular measures are needed in practice to control PYDV. However, as with all potato viruses, high-quality seed potatoes must be derived from virus-free nuclear stock, including freedom from PYDV.[3]

Gallery[edit]

References[edit]

  1. Black, L.M. (1970) Potato yellow dwarf virus. CMI/AAB Descriptions of Plant Viruses No. 35. Association of Applied Biologists, Wellesbourne, UK.
  2. OEPP/EPPO (1980) Data sheets on quarantine organisms No. 30, Potato yellow dwarf virus. Bulletin OEPP/EPPO Bulletin 10 (1).
  3. a b c Data Sheets on Quarantine Pests - Potato yellow dwarf nucleorhabdovirus. Europpean and Mediterranean Plant Protection Organization. Retrieved: 2011-02-10.