Peter R. Girguis

Interim Faculty Support: Jennifer Thomson
We study the physiology and biochemistry of deep sea microorganisms, with an emphasis on carbon and nitrogen metabolism, to better understand their role in mediating local and global biogeochemical cycles. We also study the physiological relationships (such as nutrient exchange and immune responses) between microbes and animals in natural systems. To that end, we apply traditional or modern geochemical and molecular technologies -and develop new technologies- to interrogate physiological and biochemical processes in natural systems or laboratory simulations.
Recent Publications
Park, J., Nian Liu, N., Holinski, K., Emerson, D.F., Qiao, K., Woolston, B., Xu, J., Lazar, Z., Islam, M.A., Vidoudez, C., and Girguis, P.R. and Stephanopoulos, G. 2019. Synergistic substrate cofeeding stimulates reductive metabolism among anaerobes. In press at Nature
Beinart, R.A., Luo, C., Konstantinidis, K., Stewart, F. and Girguis, P.R., 2019. The bacterial symbionts of closely related hydrothermal vent snails with distinct geochemical habitats show broad similarity in chemoautotrophic gene content. Frontiers in Microbiology, 10, p.1818
Rowe, A.R., Xu, S., Gardel, E., Bose, A., Girguis, P., Amend, J.P. and El-Naggar, M.Y., 2019. Methane-linked mechanisms of electron uptake from cathodes by Methanosarcina barkeri. mBio, 10(2), pp.e02448-18
LeBris, N., Yucel, M., Das, A., Sievert, S.M. and Girguis, P.R., 2019. Hydrothermal energy transfer and organic carbon production at the deep seafloor. Frontiers in Marine Science, 5, p.531. DOI: 10.3389/fmars.2018.00531
Shah, Walter, S.R., Jaekel, U., Osterholz, H., Fisher, A.T., Huber, J.A., Pearson, A., Dittmar, T., Girguis, P.R. 2018. Microbial decomposition of marine dissolved organic matter in cool oceanic crust. Nature Geoscience. DOI: 10.1038/s41561-018-0107-5
Courses Taught
OEB 119 Deep Sea Biology
OEB 191 Physiological and Biochemical Adaptation
OEB 194 Laboratory Techniques in Ecological Physiology
OEB 364 Ecological Physiology of Microbes
Contact Information
16 Divinity Avenue
Cambridge, MA 02138