In this article we will discuss about:- 1. Shape of Viruses 2. Microstructure of Viruses 3. Economic Importance 4. Affinities 5. Control of Diseases. Shape of Viruses: The shapes of virus particles or viruses are known chiefly from electron micrographs. The viruses may be spherical, rod like, brick-shaped B or shaped like a tadpole with a head and slender tail [...]
In this article we will discuss about:- 1. Introduction to Cyanophages 2. Distribution of Cyanophages 3. Nomenclature 4. Ultrastructure 5. Infection and Growth Cycle. Introduction to Cyanophages: Sufferman and Morris (1963) were the first to report the discovery of viral agent which attacks and lysis blue-green algae. Since then many more viruses have been found which attack a wide range [...]
In this article we will discuss about:- 1. Meaning of Bacteriophages 2. Ultrastructure of Bacteriophages 3. Life Cycle. Meaning of Bacteriophages (Bacterial Viruses): The viruses which attack, reproduce and lyse bacteria are called bacteriophages. The term bacteriophage literally means, "eater of bacteria". The bacteriophages do not eat bacteria but infect and kill them. Twort discovered in 1915 and Herelle studied [...]