The following points highlight the top six methods used for obtaining pure culture of microorganisms. The methods are: 1. Streak Plate Method 2. Pour Plate Method 3. Spread Plate Method 4. Serial Dilution Method 5. Single Cell Isolation Methods 6. Enrichment Culture Method. 1. Streak Plate Method: This method is used most commonly to isolate pure cultures of bacteria. A [...]
A pure culture of an organism is a valuable asset and it deserves to be preserved for future. Normally, the cultures which are of daily use are grown in agar slants and kept in the refrigerator. When required, a loopful of growth is transferred to fresh agar or broth and the organisms are allowed to grow in an incubator. For [...]
The below mentioned article provides study notes on bioluminescence which is an interesting aspect of energy metabolism. Bioluminescence or emission of light by biological organisms is an interesting aspect of energy metabolism. Many different kinds of organisms, both prokaryotic and eukaryotic, show this property. Among the bacteria, bioluminescent species occur in the genera, Photo-bacterium, Vibrio and Beneckea. Many marine dinoflagellates [...]