VMC 211: General Veterinary Microbiology (1+1)

CLASSIFICATION OF BACTERIA

• A manual on the identification of bacterial species was compiled and published in 1923 by David Bergey and colleagues in the University of Pennsylvania. It was named as Bergey's manual of determinative bacteriology. The manual was periodically revised and 8 editions were published.
• In 1984 , it was renamed as Bergey's manual of systematic bacteriology with the approach to the classification more systematic than determinative. The first edition was published in 4 volumes. The prokaryotes were placed in the kingdom prokaryotae. The kingdom was divided into four divisions.
  • Gracilicutes – bacteria with gram negative cell wall
  • Firmicutes – bacteria with gram positive cell wall
  • Tenericutes – bacteria lacking cell wall
  • Mendosicutes – bacteria lacking peptidoglycan in the cell wall
• The committee empowered for the classification of bacteria is ICTB or TCNB. International committee for taxonomy/ nomenclature of bacteria.