Lettuce mosaic virus

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symptoms on lettuce infected by the Lettuce mosaic virus (click on image to enlarge it)
Authors: Mônika Fecury Moura, Norberto da Silva, Maria Isabel Motta Hoffmann, Marcelo Agenor Pavan and Renate Krause-Sakate
Source: Pesquisa Agropecuária Brasileira, 2018, 53 (1), p. 127

Lettuce mosaic virus (LMV)

This virus is widely distributed and causes a serious disease on lettuce. The symptoms include leaf mosaic, severe stunting with a failure to produce heads in lettuce, leaf deformation and necrosis. Infections can lead to plant death. The virus is transmitted by a variety of aphids (e.g. Myzus persicae) in a non-persistent manner and also through seeds.

The particles are about 700-800 nm long and 15 nm wide. The genome with around 10,000 nt translates into a large polyprotein which is transformed into 10 mature proteins.

For a review see German-Retana et al., 2008.

Vernacular names
• Deutsch: Salatmosaik-Virus
• English: lettuce mosaic virus
• Español: mosaico de la lechuga
• Français: mosaïque de la laitue