In this article we will discuss about the structure of phage M13. M13 (or f1) phage is a filamentous phage that shows entirely alpha-helical in structure so that the molecule forms a short rod. The helical capsid is simplest measuring about 900 nm long and 9 nm in diameter. M13 is encapsulated in about 2700 copies of the major coat [...]
In this article we will discuss about the replication of ssDNA phage. I. Adsorption: The cell wall surface of E.coli contains specific receptor sites. For example, the receptor site of ØX114 present on outer membrane of cell wall of Salmonella typhimurium is a lipopolysaccharide. The phage gets adsorbed on bacterial cell surface through any one of 12 icosahedral vertices. The [...]
In this article we will discuss about the two examples of mycoviruses: 1. Mycoviruses of Mushrooms 2. Mycoviruses in Plant Patliogenic Fungi. 1. Mycoviruses of Mushrooms: At least six viruses and VLP have been reported from the cultivated mushrooms, A.bisporus nearly from all countries where it is grown widely. The mycoviruses occur in a mixture of cells and are extremely [...]