6 phyla - bacteria

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  • 6 phyla -bacteria
    • phylum endospora
      • gram-negetive bacteria
        • phylum actinobacteria
          • filamentous
          • actinospores
          • Oygen tolerance: aerobic
      • endospores: heat and desiccation resistant
      • oxygen tolerance:     -obligate aerobic         -obligate anaerobic      -facultative anaerobic
      • heterotrophic
    • phylum proteobacteria
      • very diverse
        • divided into alpha, beta, gamma and delta based in DNA sequences
      • photosynthetic, heterotrophic, chemolithotro-phic
      • e. coli
    • phylum actinobacteria
      • filamentous
      • actinospores
      • Oygen tolerance: aerobic
    • phylum cyanobacteria
      • gram-positive bacteria
        • phylum proteobacteria
          • very diverse
            • divided into alpha, beta, gamma and delta based in DNA sequences
          • photosynthetic, heterotrophic, chemolithotro-phic
          • e. coli
      • blue-green algae
      • photosynthetic and aquatic
      • green scum
      • some are nitrogen fixers
    • phylum thermotogae
      • gram-negetive bacteria
        • habitat: hot springs & 90^oC sea vents which are heat resistant
        • oxygen tolerance: obligate anaerobic
        • rod-shaped
        • toga: outer covering that is thicker than the cell wall
      • phylum aphragmabateria
        • wall-less bacteria
        • cells bound by lipid trilayer
        • irregular cell shapes
        • has membrane, ribosomes, prokaryotic genome
        • chemoheterotrophs
        • oxygen tolerance: obligate anaerobe or facultative anaerobes
        • resistant to antibiotics

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