In this article we will discuss about the features and classification of four general groups of microorganisms:- 1. Rickettsias 2. Chlamydias 3. Planctomycetes 4. Verrumicrobiota. Group # 1. Rickettsias: Most live in an obligate intracellular association parasitic or mutualistic, with eukaryotic hosts (vertebrates or arthropods); a few can be grown on moderately complex bacteriological media […]
4 General Groups of Microorganisms | Microbiology
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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 […]