Tobacco streak virus
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Tobacco streak virus (TSV)
The virus is widely distributed and infects a large variety of crops, such as groundnuts, beans, cucumber or sunflower. Infected plants show chlorosis, necrosis, mottling, stunting and fruit deformations. Leaf nodes might show red discoloration and break. Infections can be also symptomless.
Yield losses of more than 50% have been reported. The virus can be transmitted through seeds, infected pollen and also mechanically, although it is unstable in sap. There are further reports of transmission by thrips. For management, the use of certified virus-free seeds is recommended. Vector control seems to have little effect. The virus is the type species of the genus Ilarvirus. The particles are isometric, around 30 nm large, with 3 RNA molecules.
|• English:||tobacco streak virus
|• Français:||virus de la striure du tabac|