nitrifying nitrogen fixing bacteria ref name brock french canadian microbiologist felix d'herelle co discovered bacteriophages one earliest applied microbiologists ref name keen ref joseph lister first use phenol disinfectant open wounds patients branches university food microbiology laboratory branches microbiology classified applied sciences divided according taxonomy case bacteriology mycology protozoology virology phycology microbial ecology considerable overlap specific branches microbiology disciplines certain aspects branches
Natural science Biology Microbiology