Turnip mosaic virus

Turnip mosaic virus (TuMV)
Leaves showing interveinal chlorosis, puckering and distortion.
Virus classification
Group: Group IV ((+)ssRNA)
Family: Potyviridae
Genus: Potyvirus
Species: Turnip mosaic virus
Synonyms
  • TuMV

Turnip mosaic virus (TuMV) is a Potyvirus of the family Potyviridae that causes diseases in cruciferous plants, among others. The virus is usually spread by 40-50 species of aphids in a non-persistent manner. Infected plants, especially the natural hosts, show symptoms such as chlorotic local lesions, mosaic, mottling, puckering or rugosity. TuMV is a positive-sense single stranded RNA virus, consisting of a non-enveloped, helical capsid that is filamentous and flexuous, with an average length of 720 nm. The TuMV genome is linear and monopartite (single particle). The virus has a thermal inactivation point (TIP) of 62°C, and longevity in vitro (LIV) of 3–4 days.

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