Lecture 2 History of Microbiology

Lecture 2 History of Microbiology - I always thought the...

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I always thought the most significant thing that we ever found on the whole goddamn Moon was that little bacteria who came back and lived and nobody ever said shit about it. — Pete Conrad On April 20, 1967, the unmanned lunar lander Surveyor 3 landed near Oceanus Procellarum on the surface of the moon. One of the things aboard was a television camera. Two-and-a-half years later, on November 20, 1969, Apollo 12 astronauts Pete Conrad and Alan L. Bean recovered the camera. When NASA scientists examined it back on Earth they were surprised to find specimens of Streptococcus mitis that were still alive. Because of the precautions the astronauts had taken, NASA could be sure that the germs were inside the camera when it was retrieved, so they must have been there before the Surveyor 3 was launched. These bacteria had survived for 31 months in the vacuum of the moon's atmosphere. Perhaps NASA shouldn't have been surprised, because there are other bacteria that thrive under near-vacuum pressure on the earth today. Anyway, we now know that the vacuum of space is not a fatal problem for bacteria. http://www.hq.nasa.gov/office/pao/History/alsj/a12/a12.surveyor.html http://www.panspermia.org/bacteria.htm
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Today’s lecture The study of microbiology explains misconceptions of the 1700’s Art, Industry, History, everyday habits, and more have been influenced by our understanding of Microbes Great advances were made in the Golden Age of Microbiology: microbes reproduce, facilitate transformations, cause disease, can be grown in culture and produce useful products Microorganisms are small single celled organisms and include: Eukaryotes (Eukarya: Protozoa, some Algae, some Fungi) and Prokaryotes (Archaea and Bacteria) Phylogenetic and Phenotypic observations characterize bacteria into Domains The Cell is the unit structure of life: Cells can be described as Eukaryotic or Prokaryotic Eukaryotic cells can be distinguished from Prokaryotic cells via analysis of structures Searching for life in the universe, how are microbes from earth recognized?
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Announcements Technology quiz due by 11:59 PM Friday
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Lecture 2 History of Microbiology - I always thought the...

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