Bacterial classification; Bacterial nomenclature; Identification of bacteria; Reference collections of bacteria - the need and requirement for type strains; List of culture collections; The higher taxa, or a place for everything? Kingdom procaryotae; Gracilicutes; Firmicutes; Tenericutes; Mendosicutes; The spirochetes; Aerobic/microaerophilic, motile, helical/vibrioid gram-negative bacteria; Nonmotile (or rarely motile), gram-negative curved bacteria; Gran-negative aerobic rods and cocci; Facultatively anaerobic gram-negative rods; Anaerobic gram-negative straight, curved and helical rods; Dissemilatory sulfate- or sulfur-reducing bacteria; Anaerobic gram-negative cocci; The rickettsias and chlamydias; The mycoplasmas; Endosymbionts
