In this article we will discuss about the evolution of genomes in microorganisms. The prokaryotes contain a large single, circular dsDNA molecule, usually less than 5 Mb long. In addition, they may also contain plasmids. The genome is arranged into operons. A typical prokaryotic genome contains a small amount of non-coding DNA distributed throughout the […]
Evolution of Genomes in Microorganisms | Microbiology
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Ecological Groups of Microorganisms | Microbiology
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Microorganisms are an important component of an ecosystem. Several ecological categories can be made on certain grounds while grouping the microorganisms. They are: 1. Based on Oxygen Requirement 2. Based on Carbon Sources as Energy 3. Based on Temperature 4. Based on Habitat 5. Microorganisms Living in Extreme Environment Extremophiles 6. On the Basis of […]
Symbiotic Associations and Microorganisms | Microbiology
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Symbiotic associations with different groups of microorganisms are discussed below: (i) Cyanobacterial Symbiosis: The term cyanobacteria is of recent origin which includes the members of cyanophyceae. They may be both heterocystous and non-heterocystous forms. Heterocyst is the site of nitrogen fixation. The non-heterocystous forms also fix nitrogen. Anabaena cycadae is associated with the coralloid roots […]
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