Elizabeth Mann, PhD


Postdoctoral Scientist
Phone: +1 (207) 315-2567, ext. 417
Fax: +1 (207) 315-2329
emann@bigelow.org

For media inquiries, please contact sprofaizer@bigelow.org



Education

Ph.D., Biological Oceanography, Massachusetts Institute of Technology, Cambridge, MA & Woods Hole Oceanographic Institution, Woods Hole, MA, 2000

B.A., Biochemistry (magna cum laude), Bowdoin College, Brunswick, ME 1989


Research Interests

I am a microbial ecologist with a broad interest in using interdisciplinary approaches to determine how microbes respond to multiple environmental stresses. My research focuses on how marine microbial populations respond to either limiting or toxic concentrations of metals and how these responses are shaped by other environmental factors such as nutrient and light availability. An active area of marine research is the limitation of ecosystem productivity by iron. Nearly all organisms on Earth require iron to thrive, but the supply of this metal falls short of demand in vast areas of the oceans, including the Southern Ocean, Equatorial Pacific and subarctic Pacific. As a result, the growth rates and productivity of even the smallest marine algae – the cyanobacteria, are significantly limited by iron. Past projects have ranged from quantifying basic ecological information such as the growth rates of cyanobacteria in the field to determining how relationships among intracellular regulatory pathways influence gene expression when bacteria are limited by iron. I am currently investigating how metal concentrations or quotas in phytoplankton vary in response to iron concentrations in the environment and in response to perturbations such as oxidative stress. This research utilizes a wide range of techniques, including flow cytometry, gene expression, ICP-MS and synchrotron x-ray fluorescence microscopy.