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Why 16s Ribosome?
- All cellular life must have ribosomes
- has highly conserved regions (in all organisms) + conserved (differentiate species)
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Deep-Branching Thermophiles (3)
- High temps and Fastest growing cells known
- Aquificales, thermotogales (near boiling water)
- Deinococcus live at lower temps, extremely radiation resistant (hiroshima bomb = nothing)
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Cyanobacteria (3)
- Oxygenic phototrophs
- Nitrogen fixers ( specialized cell = heterocyst)
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What are cyanobacteria subcellular structures?
- Thylakoid (site of photosynthesis)
- Carboxysome-lipid bodies
- gas vessicles
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What is a Firmicute? ex?
- phylum of low GC content gram(+) bacteria
- Many are pathogenic
- ex: staph, strep, Listeria (polymerizes actin inside host)
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Gram(+) actinobacteria
- Acid-fast Cell walls (waxy lipid in cellwall)
- ex Mycobacterium TB, leprae
- Form long multicellular filaments
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Streptomyces
- Very large Genome
- source of antibiotics
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Granulome
- A special type of inflammation that can occur in a wide variety of diseases
- formed by MycobacteriumCan be aerosolized
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Alpha Proteobacteria
- Photohetertroph - rhodospirillium
- Endosymbionts - rhizobium, agrobacterium (plants and animals) - Rickettsias (animals)
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Enteric Gamma Proteobacteria
- Faculative Anaerobic rods
- E. coli
- biofilm
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Gamma proteobacteria examples
Pathogenic = Salmonella, Proteus, Shigella
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