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It’s a microbial world

It’s a microbial world. (And was and will be to the end). 3 Domains of life. ~4-6 x 10 30 cells ~350-550 Pg of C (1 Pg = 10 15 g) ~60% of all biomass. Indications of eukaryotic life. History of Earth. http://web.mit.edu/12a34/www/home.html. Seawater. Ice bacteria.

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It’s a microbial world

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  1. It’s a microbial world (And was and will be to the end)

  2. 3 Domains of life • ~4-6 x 1030 cells • ~350-550 Pg of C (1 Pg = 1015 g) • ~60% of all biomass

  3. Indications of eukaryotic life History of Earth http://web.mit.edu/12a34/www/home.html

  4. Seawater

  5. Ice bacteria Ice images: Priscu research group, MSU

  6. Soil bacteria

  7. Hydrothermal vents http://www.cascadia.ctc.edu/facultyweb/instructors/jvanleer/

  8. Subsurface biosphere

  9. Space? http://www.astronomie.de/vds/astronomietag-2003/alh84001.jpg

  10. Allen Hills Meteorite http://www-curator.jsc.nasa.gov/antmet/marsmets/alh84001/images/ALH84001,0-saw.jpg

  11. What life is made of CHNOPS • Used to make: • Lipids • Proteins • RNA • DNA http://micro.magnet.fsu.edu/cells/procaryotes/images/procaryote.jpg

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