Describe the major taxonomic divisions of prokaryotic organisms
What will be an ideal response?
Bergey's Manual of Systematic Bacteriology divides prokaryotes into two domains, the Archaea and the Bacteria, based on differences in their rRNA sequences, cell wall structures, cytoplasmic membrane proteins, and features of mRNA translation. The Archaea are divided into two major phyla (Crenarchaeota and Eukaryarchaeota) and three minor phyla. The Bacteria are divided into 24 phyla. Among these 24 phyla of Bacteria are the phylum Firmicutes (which includes low G + C Gram-positive bacteria) and the phylum Actinobacteria (which includes high G + C Gram-positive bacteria). The majority of Gram-negative bacteria are placed in the phylum Proteobacteria, which itself is divided into five classes: alpha, beta, gamma, delta, and epsilon. These groups include a variety of pathogenic as well as environmentally important genera. Other Gram-negative bacteria, such as chlamydia and spirochetes, are not genetically related; however, they are grouped together in Bergey's Manual of Systematic Bacteriology for the sake of convenience.
Bloom's Taxonomy: Application
Section: Modern Prokaryotic Classification
Learning Outcome: 11.6, 11.8
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What will be an ideal response?
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