Structure of Tobacco Mosaic Virus

  • Tobacco Mosaic Virus (TMV) is rod or filamentous shaped virus with a length ranging approximately 300 nanometers.
  • The capsid is the outer protein that covers virus, while capsomeres are the subunits that join to make up the entire structure called capsid.
  • Tobacco Mosaic Virus (TMV) contains a single-stranded RNA genome as the genetic material representing it as an RNA virus.
  • The protein subunits in Tobacco Mosaic Virus (TMV) are arranged in a helical fashion around the RNA,this structure represents helical symmetry
  • The Tobacco Mosaic Virus (TMV) is encapsulated inside a protein coat composed of identical protein sub-units, forming a helical capsid.
  • The capsid provide stability for the virus as it is made up of protein subunits arranged in a repeated pattern .
  • The RNA genome is almost 6395 nucleotide long approximately and found in a coiled manner.
  • The capsids in the Tobacco Mosaic Virus (TMV) are made up of 2130 identical protein subunits. These proteins come together around the virus’s single-stranded RNA to create a twisted or helical structure.

Tobacco Mosaic Virus (TMV): Diagram, Structure, & its Applications

Tobacco mosaic virus (TMV) is a plant pathogen, it is a virus that belongs to the genus Tobamovirus and belongs to the family Virgaviridae. Tobacco mosaic virus(TMV) is known to majorly affect tobacco and other plants belonging to the Solanaceae family like potatoes and tomatoes. The tobacco mosaic virus(TMV) causes a mosaic-like pattern on the leaves of the infected plants and also shows discoloration.

Table of Content

  • Discovery of Tobacco mosaic virus (TMV)
  • Diagram of Tobacco mosaic virus (TMV)
  • Structure of Tobacco Mosaic Virus
  • Characteristics of Tobacco Mosaic Virus
  • Life Cycle of Tobacco Mosaic Virus
  • Applications of Tobacco Mosaic Virus

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Discovery of Tobacco mosaic virus (TMV)

Adolf Mayer was a German scientist who first described the Tobacco mosaic virus (TMV). Dmitri Ivanowsky was a Russian microbiologist who started investigating the tobacco mosaic disease and concluded it was a non-bacterial. Mayer’s work was very important in recognizing the disease but it was Martinus Beijerinck who later used the term virus to describe the disease-causing agent as it was smaller than bacteria. This discovery was the base for virology and understanding plant diseases and viral infections....

Diagram of Tobacco mosaic virus (TMV)

The labelled diagram of Tobacco mosaic virus (TMV) is given below:...

Structure of Tobacco Mosaic Virus

Tobacco Mosaic Virus (TMV) is rod or filamentous shaped virus with a length ranging approximately 300 nanometers. The capsid is the outer protein that covers virus, while capsomeres are the subunits that join to make up the entire structure called capsid. Tobacco Mosaic Virus (TMV) contains a single-stranded RNA genome as the genetic material representing it as an RNA virus. The protein subunits in Tobacco Mosaic Virus (TMV) are arranged in a helical fashion around the RNA,this structure represents helical symmetry The Tobacco Mosaic Virus (TMV) is encapsulated inside a protein coat composed of identical protein sub-units, forming a helical capsid. The capsid provide stability for the virus as it is made up of protein subunits arranged in a repeated pattern . The RNA genome is almost 6395 nucleotide long approximately and found in a coiled manner. The capsids in the Tobacco Mosaic Virus (TMV) are made up of 2130 identical protein subunits. These proteins come together around the virus’s single-stranded RNA to create a twisted or helical structure....

Characteristics of Tobacco Mosaic Virus

Characterisctics of Tobacco Mosaic Virus are given below:...

Life Cycle of Tobacco Mosaic Virus

Insects such as flies serve as vectors for the Tobacco mosaic virus(TMV).They enter the plant host cells through them. The virus multiplies once it has entered the host cell and move to other cells using plasmodesmata. By coming into close touch with the diseased plants tobacco mosaic virus (TMV) spread to other healthy plants....

Applications of Tobacco Mosaic Virus

Applications of TVM are given below:...

FAQ’s – Tobacco Mosaic Virus (TMV)

1. What is the Host Range of Tobacco Mosaic Virus (TMV)?...