In this article we will discuss about the working of immune system in the presence of HIV. Infection is carried out through the spicules present on envelope of HIV which attach to the target cell. The gpl20 has affinity for a specific molecule, the T4 or CD4 molecule exposed on the surface of certain cells i.e. lymphocytes. The lymphocytes secrete [...]
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 [...]