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Event Detail (Archived)

A Single-cell View of Microbial Activity in the Dark Ocean

  • This event already took place in October 2019
  • A Level Physics Seminar Room, Room A30, Smith Hall Annex (CRC)

Event Details

Type
Center for Studies in Physics and Biology Seminars
Speaker(s)
Anne Dekas, Ph.D., assistant professor, Stanford University
Speaker bio(s)

The dark ocean is one of the largest habitats for microbial life on the planet: It covers nearly two thirds of our Earth’s surface and harbors well over half of marine microorganisms. The activity of microorganisms in the deep sea plays an essential role in biogeochemical cycling, including the production and consumption of greenhouse gases (e.g., CH4, CO2 and N2O), thereby affecting climate. The goal of Dekas's research is to understand the activity of bacteria and archaea in the dark ocean: who is doing what, how much, and what affects metabolic rates? In this talk, Dekas will describe two lines of research, one investigating nitrogen fixation in deep-sea sediments, and one probing organic substrate utilization by pelagic marine Thaumarchaeota. Additionally, Dekas will describe the culture-independent techniques her team employs, including recent methodological advances in the use of nanoscale secondary ion mass spectrometry (nanoSIMS) to quantify anabolic activity in uncultured microorganisms on the single-cell level.  

Open to
Public
Contact
Melanie Lee
Phone
(212) 327-8636
Sponsor
Melanie Lee
(212) 327-8636
leem@rockefeller.edu
Notes


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