from woods hole to the deep sea: living in a microbial world · from woods hole to the deep sea:...
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From Woods Hole to the Deep Sea:
Living in a Microbial World
Julie A. Huber
Marine Biological Laboratory
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From Woods Hole to the Deep Sea:
Living in a Microbial World
Julie A. Huber
Marine Biological Laboratory
• We live on Planet Microbe
• Rocks + Water = Energy
• We need to think DEEP
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How did life spread across the planet?
How did life diversify?
How do life and its environment co-evolve?
What does the future of life look like?
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Planet Microbe
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BACTERIA
EUKARYA ARCHAEA
P.
ferr
ophil
us
•No true nucleus
•Single chromosome
•No membrane-bound organelles
•Divide by binary fission
Dave Remsen, MBL
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Universal
Tree of Life
BACTERIA
EUKARYA
ARCHAEA
Modified from Norman Pace
EUKARYA
You Are
Here
ARCHAEA
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Baker and Dick Microbe 2013
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Though they be small, they are mighty! -Shakespeare (sort of)
• Microbes are EVERYWHERE (inc. in/on you!)
• A petagram (~ 1015 g) of carbon in marine microbes
• All the people on Earth together weigh about 4x1013 grams
• Microbes were the only form of life for most of our
biological history (~3.5 Billion Years)
• Microbes mediate biogeochemical cycles (carbon,
oxygen, nitrogen, etc) that shape Earth’s habitability
Planet Microbe
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Marine Food Webs
Worden et al. 2015
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Breitbart 2012
Marine Food Webs
Classic food chain
Primary Producers
Dissolved organic matter
Grazers
Heterotrophic Prokaryotes
Viruses
Breitbart 2012
Phag
e by M
PI
Copepod by Hopcroft/UAF/CoML
Str
iper
by P
hil
ip C
oll
a
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Breitbart 2012
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Breitbart 2012
Marine Food Webs
Classic food chain
Primary Producers
Dissolved organic matter
Grazers
Heterotrophic Prokaryotes
Viruses
Breitbart 2012
Phag
e by M
PI
Copepod by Hopcroft/UAF/CoML
Str
iper
by P
hil
ip C
oll
a
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Marine Food Webs
Classic food chain
Primary Producers
Dissolved organic matter
Grazers
Heterotrophic Prokaryotes
Viruses
Chemical Energy Breitbart 2012 Methanogen by Maryland Astrobiology Consortium U
W/D
eb K
elle
y
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Rocks + Water = Energy
(R)evolutionary Crosstalk between
Earth & Life
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Rocks + Water = Energy
Basalt
Dikes
Gabbro
Peridotite
WHOI
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H2S
Fe
Rocks + Water = Energy
+ H2O
Mafic
Basalt
Dikes
Gabbro
Peridotite
WHOI
WHOI
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H2
CH4
C2-C5
Ultramafic
Rocks + Water = Energy
+ H2O
Basalt
Dikes
Gabbro
Peridotite
Tim Shank
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Nature: 459 , June 2009
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Zhang et al. 2014 Frontiers in Microbio
Epsilonproteobacteria
Gastric ulcer, cancer
Food-borne diarrhea
Marine & Terrestrial
Sulfidic Systems
Vent Endemic: Most Ancient
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Deep-Sea Hydrothermal Vents: Potential Hot Spots for
Natural Products Discovery?
Thornburg, Zabriskie and McPhail
J. Nat. Prod., 2010, 73, pp 489–499
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www.mineweb.com
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lbl.gov
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Multi-Disciplinary Science
• Evolutionary Biology
• Geochemistry
• Geology
• Microbiology
• Modeling
• Natural Resources
• Oceanography
• Astrobiology
• Biochemistry
• Biogeography
• Climate
• Ecology
• Energy
• Engineering
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From Woods Hole to the Deep Sea:
Living in a Microbial World
Julie A. Huber
Marine Biological Laboratory
• We live on Planet Microbe
• Rocks + Water = Energy
• We need to think DEEP
![Page 30: From Woods Hole to the Deep Sea: Living in a Microbial World · From Woods Hole to the Deep Sea: Living in a Microbial World Julie A. Huber Marine Biological Laboratory •We live](https://reader033.vdocuments.site/reader033/viewer/2022060303/5f08b0ff7e708231d4234124/html5/thumbnails/30.jpg)
Most Marine Ecosystems are Important & Understudied
Understanding them Demands
Multi-Disciplinary BIG Science
Microbes, Viruses, Resources, Carbon, etc.