- This course gives introduction on the Phylogeny of bacteria and studying the major groups of bacteria and their characters. 
- Phototrophic, Chemolithotrophic and Methanotrophic Proteobacteria: (ex. Purple Phototrophic Bacteria, the Nitrifying Bacteria, Sulfur- and Iron-Oxidizing Bacteria, Hydrogen-Oxidizing Bacteria, Methanotrophs and Methylotrophs). 
- Aerobic and Facultatively Aerobic Chemoorganotrophic Proteobacteria: (Pseudomonasand the Pseudomonads, Acetic Acid Bacteria, Free-Living Aerobic Nitrogen-Fixing Bacteria, Neisseria, Chromobacterium, and Relatives, Enteric Bacteria, Vibrio, Photobacterium and Rickettsias). 
- Morphologically Unusual Proteobacteria: (Spirilla, Sheathed Proteobacteria, Budding and Stalked Bacteria). 
Delta and Epsilonproteobacteria: (Myxobacteria, Sulfate and Sulfur-Reducing Proteobacteria and The Epsilonproteobacteria).