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Shallot Latent Virus
Shallot latent virus (SLV), a species of ''Carlavirus'', was first identified in shallots in Netherlands. The virus particle is elongated, 650 nm in length. Epidemiology Since its first detection in shallots, SLV has been found infecting garlic, onion, and leek on five continents. In Indonesia, the virus has been identified in shallot, which is widely grown and used as a food ingredient, and also in garlic. In Turkey, where shallot is less commonly cultivated, SLV was identified in onion in Amasya province instead. However, SLV was not detected in onion samples collected in Ankara province. Molecular study also detected SLV in other ''Allium ''species such as ''Allium cyathophorum'', ''Allium moly'', ''Allium scorodoprasum'', and ''Allium senescens'' subsp. montanum. The virus is widespread in shallot and garlic without causing any clear symptoms, hence its name 'latent'. However, in mixed infection with leek yellow stripe virus (LYSV, ''Potyvirus'') induces severe chlorot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carlavirus
''Carlavirus'', formerly known as the " Carnation latent virus group", is a genus of viruses in the order '' Tymovirales'', in the family '' Betaflexiviridae''. Plants serve as natural hosts. There are 53 species in this genus. Diseases associated with this genus include: mosaic and ringspot symptoms. Description ''Carlavirus'' is described in the 9th report of the ICTV (2009). The genus is characterised by having six ORFs ( open reading frames) including a TGB (Triple Gene Block). The viruses are transmitted by insects. Taxonomy The genus was first proposed in the first report of the ICTV in 1971, as the 'Carnation latent virus group' but was renamed in 1975 as the 'Carlavirus group', and as the genus ''Carlavirus'' in 1995 (6th report). In 2005 (8th report) it was placed in the ''Flexiviridae'' family, having previously been unassigned. The current position in the 9th report (2009) as a genus of the family ''Betaflexiviridae'' derives from the subsequent subdivision of ''Flex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |