The following points highlight the nine main types of plasmids in bacterial cytoplasm. The types are: 1. Sex Factor 2. R (resistance) Plasmids 3. Heavy-Metal Resistance Plasmids 4. Col Plasmids 5. Degradative Plasmids 6. Penicillinase Plasmid of Staphylococcus Aureus 7. Cryptic Plasmids 8. Ti-Plasmids of Agrobacterium Tumifaciens 9. Ri-Plasmids. Type # 1. Sex Factor or Fertility (F) Factor: The plasmids [...]
The following points highlight the six main components of cytoplasm of bacteria. The components are: 1. Ribosomes 2. Molecular Chaperones 3. Nucleoids 4. Plasmids 5. Cytoplasmic Inclusions 6. Spore and Cysts. Component # 1. Ribosomes: All living cells contain ribosomes which act as a site of protein synthesis. High number of ribosomes represents high rate of protein synthesis and vice [...]
In this article we will discuss about the classification of pili. Mainly pili are of two types: (a) Common pili which act to adhere the cell to surfaces, and (b) Sex pili which join the other bacterial cell for transfer of genome. Ottow (1975) has classified the pili into the following six groups: Group 1: Fimbriae of this group act [...]