short note on tmv viruses

  • Tobacco mosaic virus (TMV) is a single stranded RNA virus that infects plants, especially tobacco and other members of the family Solanaceae. The infected plants would be having "mosaic"-like mottling and discoloration on the leaves.
  • Tobacco mosaic virus has a rod-like appearance. It is one of the most stable viruses. If the surrounding temperature remains below approximately 40 degrees Celsius it can be viable.
  • After its multiplication, it enters the neighboring cells through plasmodesmata. It can also spread through phloem for longer distance movement within the plant, transmitted from one plant to another by direct contact and easily transmitted from the infected hosts to the healthy plants, by human handling.


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