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

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

It’s a microbial world

(And was and will be to the end)

Page 2: It’s a microbial world (And was and will be to the end)

3 Domains of life

•~4-6 x 1030 cells

•~350-550 Pg of C (1 Pg = 1015 g)

•~60% of all biomass

Page 3: It’s a microbial world (And was and will be to the end)

History of Earth

http://web.mit.edu/12a34/www/home.html

Indications of eukaryotic life

Page 4: It’s a microbial world (And was and will be to the end)

Current debate

Page 5: It’s a microbial world (And was and will be to the end)

Seawater

Page 6: It’s a microbial world (And was and will be to the end)

Ice bacteria

Ice images: Priscu research group, MSU

Page 7: It’s a microbial world (And was and will be to the end)

Soil bacteria

Page 8: It’s a microbial world (And was and will be to the end)

Hydrothermal vents

http://www.cascadia.ctc.edu/facultyweb/instructors/jvanleer/

Page 9: It’s a microbial world (And was and will be to the end)

Subsurface biosphere

Page 10: It’s a microbial world (And was and will be to the end)

Space?

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

Page 11: It’s a microbial world (And was and will be to the end)

Allen Hills Meteorite

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

Page 12: It’s a microbial world (And was and will be to the end)

What life is made of

http://micro.magnet.fsu.edu/cells/procaryotes/images/procaryote.jpg

CHNOPSUsed to make:

•Lipids

•Proteins

•RNA

•DNA


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