Who discovered TMV?

Tobacco mosaic virus occupies a unique place in the history of virology and was in the forefront of virus research since the end of the nineteenth century. It was the German Adolf Mayer, working in the Netherlands, who in 1882 first described an important disease of tobacco which he called tobacco mosaic disease.

What is the structure of TMV?

Structure of Tobacco Mosaic Virus (TMV): TMV is a simple rod-shaped helical virus (Fig. 13.20) consisting of centrally located single- stranded RNA (5.6%) enveloped by a protein coat (94.4%). The rod is considered to be 3,000 Å in length and about 180 Å in diameter. The protein coat is technically called ‘capsid’.

How does TMV replicate?

The replication of tobacco mosaic virus (TMV) RNA involves synthesis of a negative-strand RNA using the genomic positive-strand RNA as a template, followed by the synthesis of positive-strand RNA on the negative-strand RNA templates.

What are the symptoms of TMV?

Symptoms associated with TMV infections:

• stunting.
• mosaic pattern of light and dark green (or yellow and green) on the leaves.
• malformation of leaves or growing points.
• yellow streaking of leaves (especially monocots)
• yellow spotting on leaves.
• distinct yellowing only of veins.

How to create a diagram of a DVD library?

A data model diagram of a DVD Library. Modify the database diagram template to create your own. Database design done using network model. In the network model a node can have multiple parent nodes. Database design illustrates a detailed data model of a database also known as the database schema.

How is genetic engineering used to prevent TMV replication?

In the past ten years, the application of genetic engineering on a host plant genome has been developed to allow the host plant to produce the TMV coat protein within their cells. It was hypothesized that the TMV genome will be re-coated rapidly upon entering the host cell, thus it prevents the initiation of TMV replication.

Can you use draw.io as a network diagram maker?

You can use it as a flowchart maker, network diagram software, to create UML online, as an ER diagram tool, to design database schema, to build BPMN online, as a circuit diagram maker, and more. draw.io can import .vsdx, Gliffy™ and Lucidchart™ files . Page could not be loaded. Please try refreshing. Please ensure JavaScript is enabled.

How does the TMV form a Lockwasher shaped ring?

First, the TMV protein forms a two-layer disk, with 17 proteins in each ring. A special initiation sequence in the RNA then binds in the hole at the center. This causes the disk to dislocate, forming a lockwasher shaped ring with 16 1/3 subunits per turn .

https://www.youtube.com/watch?v=u40078AJfBM