The following points highlight the three important types of bacteria. The types are: 1. The Ancient Bacteria 2. Gram-Positive Bacteria 3. Gram-Negative Bacteria. Type # 1. The Ancient Bacteria: Most of the phylogenetically primitive bacteria are thermophilic and Gram-negative (except Deinococcus). Some of them have ether-linked membrane lipids like those of archaebacteria. A few representative genera are briefly mentioned here. [...]
List of six special groups of bacteria:- 1. Anoxygenic Photosynthetic Bacteria 2. Oxygenic Photosynthetic Bacteria (Cyanobacteria) 3. The Methylotrophic Bacteria 4. The Nitrifying Bacteria 5. The Stalked and Prosthecate Bacteria 6. The Cyanomorphic Bacteria. Gram-Negative Bacteria: Group # 1. Anoxygenic Photosynthetic Bacteria: In the first edition of Bergey’s Manual of Systematic Bacteriology (1984), the anoxygenic photosynthetic bacteria were placed in [...]
In this article we will discuss about:- 1. Discovery of Mycoplasmas 2. Classification of Mycoplasmas 3. Structure 4. Diseases Caused. Discovery of Mycoplasmas: Mycoplasmas are the smallest among the known aerobic prokaryotes (Fig. 2.50). They were first discovered by Pasteur in 1843, during his work on the possible causal agent of pleuropneuÂmonia of cattle. Thus they were called pleuro- pneumonia-like [...]