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Geesey Lab


Our research focuses on interactions between microorganisms and minerals. We are studying the behavior of the disimilatory iron reducing bacterium Shewanella oneidensis MR-1 during respiration on hematite, a crystalline iron oxide that serves as a terminal electron acceptor for this bacterium. This research is undertaken as a collaboration with scientists at the Pacific Northwest National Laboratory and the University of Guelph in Ontario, Canada. Our group is also studying how methyl mercury is produced in geothermal food webs of acidic environments in Yellowstone National Park and how organisms at different trophic levels have adapted to elevated methyl mercury concentrations during their evolution. This work is conducted in collaboration with Professor Tamar Barkay at Rutgers University, Professor Jeff Tomberlein at Texas A&M University and Kirk Nordstrom at the USGS in Boulder, Colorado.



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Last updated: 2016-08-25T13:40:20.731-05:00

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The eagle-i Consortium is supported by NIH Grant #5U24RR029825-02 / Copyright 2016