In this article we will discuss about:- 1. Definition of Growth 2. Measurement of Bacterial Growth 3. Multiplication of Unicellular Bacteria 4. Determination of Generation Time 5. Growth Curve 6. Continuous Culture 7. Synchronous Culture 8. Culture Media 9. Enrichment Culture 10. Requirements of Macro- and Micro-Elements for Growth 11. Physical Factors Influencing Growth. Contents: Definition of Growth Measurement of [...]
In this article we will discuss about the polymers present in the cell wall of bacteria. Apart from murein, several other polymers are present in the cell wall of bacteria. In Gram- positive bacteria, the thick, rigid covering of murein is surrounded by polymers, like teichoic acids and teichuronic acid. Teichoic acids are hydrophilic linear negatively charged molecules and they [...]
These are endonucleases which cleave double-stranded DNA molecules at specific sites having a sequence of generally four to six nucleotides. These sites are called restriction sites. A specific restriction enzyme cleaves DNA wherever the site occurs. The nucleotide sequence of the restriction site is specific for each of hundreds of restriction enzymes discovered so far from different microorganisms. A restriction [...]