Assistant Professor of Environmental Science & Technology
School of Biological Sciences, College of Sciences
Frank Stewart is a marine microbiologist with broad interests in the genetic and metabolic diversity of ocean bacteria. His lab uses the tools of genomics and molecular biology to understand how marine microbes respond to environmental change and to symbiotic interactions with other organisms.
His research explores the diversity, evolution, and function of symbioses between bacteria and marine animals. This work targets diverse interactions, including those between deep-sea invertebrates and intracellular bacteria, as well as those within multi-species microbiomes on the surfaces and in the guts of reef corals and fish. The lab employs genomic and meta-omic methods to study these associations, often in collaboration with biogeochemists and ecologists.
A second major research theme is seeking to understand how declines in ocean oxygen content, due in part to climate change, affect microbial diversity and elemental cycling. This work focuses on major low-oxygen water masses in the Gulf of Mexico and the eastern Pacific Ocean, and involves a combination of oceanographic sampling, community genomics, biogeochemistry, and bioinformatics.
Dr. Stewart is an assistant professor in the School of Biology at Georgia Tech. He received a B.A. in Biology from Middlebury College and a Ph.D. in Organismic and Evolutionary Biology from Harvard University. His Ph.D. dissertation explored the genome evolution of bacterial symbionts in deep-sea vent animals. He worked as a Postdoctoral Fellow at MIT in the lab of Ed. DeLong before moving to Georgia Tech in 2011.