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Wonderful World of Bacteria

Wonderful World of Bacteria. In our foods…. EUBACTERIA. More bacteria in our food…. Shapes of Bacteria. Aerobes & Anaerobes…. Depending on the species, bacteria can be aerobic which means they require oxygen to live. A naerobic which means oxygen is deadly to them.

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Wonderful World of Bacteria

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  1. Wonderful World of Bacteria

  2. In our foods… EUBACTERIA

  3. More bacteria in our food…

  4. Shapes of Bacteria

  5. Aerobes & Anaerobes… • Depending on the species, bacteria can be aerobic which means they require oxygen to live. • Anaerobicwhich means oxygen is deadly to them. • Green patches are green sulfur bacteria.  • Rust patches are colonies of purple non sulfurbacteria.  • Red patches are purple sulfur bacteria.

  6. Medicines

  7. Pseudomona and Penicilliumhelp during oil spill clean-up

  8. EXTREME BACTERIA:ARCHAEBACTERIA

  9. Thermophiles These are Archaebacteria from hot springs and other high temperature environments. Some can grow above the boiling temperature of water. They are anaerobes, performing anaerobic respiration. Thermophiles are interesting because they contain genes for heat-stable enzymes that may be of great value in industry and medicine. An example is taq polymerase, the gene for which was isolated from a collection of Thermus aquaticus in a Yellowstone Park hot spring. Taq polymerase is used to make large numbers of copies of DNA sequences in a DNA sample. It is invaluable to medicine, biotechnology, and biological research. Annual sales of taq polymerase are roughly half a billion dollars.

  10. Deep Sea Vents

  11. Hot Springs

  12. Halophiles These are salt-loving Archaebacteria that grow in places like the Great Salt Lake of Utah or salt ponds on the edge of San Francisco Bay. Large numbers of certain halophiles can turn these waters a dark pink. Pink halophiles contain a pigment very similar to the rhodopsin in the human retina. They use this visual pigment for a type of photosynthesis that does not produce oxygen. Halophiles are aerobes, however, and perform aerobic respiration .

  13. Salty Environments

  14. Methanogens These Archebacteria are anaerobes. They make methane (natural gas) as a waste product. They are found in swamp sediments, sewage, and in buried landfills. In the future, they could be used to produce methane as a byproduct of sewage treatment or landfill operation.

  15. Sewage Plants

  16. Bacteria can reproduce sexually by conjugation or asexually by binary fission.

  17. Endospore • Bacteria can survive unfavorable conditions by producing an endospore.

  18. Penicillin, an antibiotic, comes from molds of the genus Penicillium Notice the area of inhibition around the Penicillium. • Penicillin kills bacteria by making holes in their cell walls. Unfortunately, many bacteria have developed resistance to this antibiotic.

  19. They are everywhere…..BUT they’re not always harmful!

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