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Tobacco Mosaic Virus: The type species of Tobamovirus which causes mosaic disease of tobacco. Transmission occurs by mechanical inoculation.

Transforming, Genome Editing and Phenotyping the Nitrogen-Fixing Tropical Cannabaceae Tree Parasponia andersonii

1Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University & Research, 2Center of Technology for Agricultural Production, Agency for the Assessment and Application of Technology (BPPT), 3Department of Ecological Science, Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, 4Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing University of Agriculture

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JoVE 59971


 JoVE In-Press

Viral Structure

JoVE 10822

Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.



 Core: Viruses

What are Viruses?

JoVE 10821

Overview

A virus is a microscopic infectious particle that consists of an RNA or DNA genome enclosed in a protein shell. It is not able to reproduce on its own: it can only make more viruses by entering a cell and using its cellular machinery. When a virus infects a host cell, it removes its protein coat and directs the host’s machinery to transcribe and translate its…


 Core: Viruses

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