Tobacco mosaic virus
Virus affecting plants of the Solanaceae family / From Wikipedia, the free encyclopedia
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Tobacco mosaic virus (TMV) is a positive-sense single-stranded RNA virus species in the genus Tobamovirus that infects a wide range of plants, especially tobacco and other members of the family Solanaceae. The infection causes characteristic patterns, such as "mosaic"-like mottling and discoloration on the leaves (hence the name). TMV was the first virus to be discovered. Although it was known from the late 19th century that a non-bacterial infectious disease was damaging tobacco crops, it was not until 1930 that the infectious agent was determined to be a virus. It is the first pathogen identified as a virus. The virus was crystallised by Wendell Meredith Stanley. It has a similar size to the largest synthetic molecule, known as PG5.[1]
Tobacco mosaic virus | |
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Transmission electron micrograph of TMV particles negative stained to enhance visibility at 160,000× magnification | |
Virus classification | |
(unranked): | Virus |
Realm: | Riboviria |
Kingdom: | Orthornavirae |
Phylum: | Kitrinoviricota |
Class: | Alsuviricetes |
Order: | Martellivirales |
Family: | Virgaviridae |
Genus: | Tobamovirus |
Species: | Tobacco mosaic virus |