Virus Diseases of Potatoes

Abstract

The cultivated potato (Solanum tuberosum L.) is known to be infected by at least 40 viruses. Viruses pose a continuing threat to potato production through yield losses and degrading stocks of seed tubers. Some viruses can be controlled by crop management practices, but the most effective and environmentally beneficial method is through host resistance. Climate change is expected to increase virus disease incidence; however, developments in plant breeding technologies to breed resistant cultivars together with integrated management practices show much potential to control existing and emerging virus diseases.

Key Concepts

  • The most economically important viruses of potato.
  • Control of virus disease incidence in potato production systems.
  • Virus resistance mechanisms.
  • Methods of virus detection and identification.
  • Future threats to potato from climate change.

Keywords: potato production; seed tubers; virus resistance; virus vectors; virus disease control

Figure 1. Symptoms (plant on the left) of Potato leafroll virus in potato. Reproduced with permission from Salazar . © John Wiley and Sons.
Figure 2. Symptoms (plant on right) of Potato virus Y ordinary strain in potato. Reproduced with permission from Salazar . © John Wiley and Sons.
Figure 3. Symptoms (yellow blotches and chevrons) of Potato mop‐top virus in potato.
Figure 4. Symptoms of Potato mop‐top virus in potato tubers, external raised rings (left) and internal brown arcs (right).
Figure 5. Symptoms of Tobacco rattle virus in potato tubers, internal brown ‘corky’ arcs and spots.
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Further Reading

Anonymous (2018) Technologies to boost breeding (editorial). Nature Plants 4. DOI: 10.1038/s41477‐017‐0091‐8.

Boonham N, Kreuze J, Winter S, et al. (2014) Methods in virus diagnostics: From ELISA to next generation sequencing. Virus Research 186: 20–31.

Bragard C, Caciagli P, Lemaire O, et al. (2013) Status and prospects of plant viruses control through interference vector transmission. Annual Review of Phytopathology 51: 177–201.

ICTV (2011) Ninth Report. https://talk.ictvonline.org/ictv‐reports/ictv_9th_report/

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How to Cite close
Torrance, Lesley(Jul 2019) Virus Diseases of Potatoes. In: eLS. John Wiley & Sons Ltd, Chichester. http://www.els.net [doi: 10.1002/9780470015902.a0000763.pub3]