Proteobacteria
Proteobacteria (Proteobacteria) is a huge taxonomic group of eubacteria. Escherichia coli, Salmonella, Vibrio, Helicobacter and many other pathogens are included. Also, many bacteria related to nitrogen fixation, such as bacteria of free life are included. Basically, this taxonomic group is defined by rRNA sequence, and because of its diversity in form, it is named after God Proteus, which transforms its appearance in Greek mythology in a timeless fashion. ...