Tobamovirus

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Tobamovirus

A Tobamovirus is a type of plant virus that belongs to the Virgaviridae family. These viruses are known for causing diseases in a wide range of plant species, including important crops such as tomatoes, peppers, and cucumbers. Tobamoviruses are rod-shaped viruses that have a single-stranded RNA genome.

Structure and Replication[edit | edit source]

Tobamoviruses have a helical structure and are approximately 300 nm in length. The viral genome encodes several proteins that are involved in the replication and assembly of new virus particles. Replication of Tobamovirus occurs in the cytoplasm of infected plant cells and involves the synthesis of viral RNA and proteins.

Transmission and Symptoms[edit | edit source]

Tobamoviruses are primarily transmitted through mechanical means, such as contaminated tools or hands. Once a plant is infected, symptoms may include mosaic patterns on leaves, stunted growth, and fruit deformities. These symptoms can vary depending on the host plant and the specific strain of Tobamovirus.

Management and Control[edit | edit source]

Preventing the spread of Tobamoviruses involves implementing strict sanitation practices in agricultural settings. Infected plants should be removed and destroyed to prevent further spread of the virus. Additionally, resistant plant varieties and the use of virus-free planting material can help reduce the impact of Tobamovirus on crops.

Examples of Tobamoviruses[edit | edit source]

Some well-known Tobamoviruses include Tobacco mosaic virus (TMV) and Cucumber green mottle mosaic virus (CGMMV). These viruses have been studied extensively due to their economic importance and impact on agriculture.

References[edit | edit source]


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Contributors: Prab R. Tumpati, MD