In this article we will discuss about the structure of viruses. 1. Viruses are much smaller than bacteria. A virus particle is called virion. The virions vary widely in size. The smallest virus measures about 10 mm in diameter (e.g., foot-and-mouth disease virus). The largest virus, (e.g., poxvirus) measures about 250 nm, i.e., as large as the smallest bacteria or [...]
The following points highlight the three major sub-viral entities. The sub-viral entities are: 1. Viroids 2. Virusoids 3. Prions. Sub-Viral Entity # 1. Viroids: Viroids are a novel class of sub-viral pathogens that are found to cause diseases on plants and are the smallest known infectious agents. They are also known by the names 'metaviruses' or ‘pathogene' and differ basically [...]
List of three important viruses of Mollicutes:- 1. Mycoplasma Viruses 2. Acholeplasma Viruses 3. Spiroplasma Viruses. Mollicutes: Virus # 1. Mycoplasma Viruses: Gourlay (1980) first isolated a virus from an unknown bovine source which infected Mycoplasma bovirhinis host cells and designed it as Br-1. In 1983, they further isolated a virus from spontaneous plaques on Mycoplasma hyorhinis lawn, successfully propagated [...]