The Aquatic Microbial Ecology Research Group at the University of Tennessee

Steven W. Wilhelm, Ph.D. (Western Ontario)

Professor of Microbiology and benevolent dictator

Professor Wilhelm is the laboratory PI and responsible for herding cats, chaos control, wine selection and middle relief.

Steven Wilhelm is the Kenneth and Blaire Mossman Professor & Associate Head of the Department of Microbiology. In 2016 he became a fellow of the American Academy of Microbiology as well as a Sustaining Fellow of ASLO. In 2018 he was also named a James R. Cox Professor at the University of Tennessee.

Gary LeCleir, Ph.D. (Georgia)  

Research Assistant Professor, REU Director

Dr LeCleir came to Knoxville in 2006 after completing his PhD at the University of Georgia.  He is our in house statistical guru, field deployment leader and reigning karaoke champion.  Gary is also the in house expert on  all things Boston Red Sox and manages the oUTsiders softball team.

Robbie Martin, Ph.D (Tennessee)     

Postdoctoral Associate, Microbiology 

Robbie joined the lab in late 2012 and has been a virtual Jack-of-all-trades.  After completing his PhD he accepted our offer to stay on to continue to work on our toxic cyanobacterial projects.  Presently Robbie is setting up chemostat studies of Microcystis gene regulation and physiology that will feed into modeling studies by collaborators at Northeastern and the Technical University of Berlin

Lauren Krausfeldt, Ph.D. (Tennessee)

Postdoctoral Associate, Microbiology 

Lauren has worked on a series of projects examining how heterotrophic microorganisms interact with cyanobacterial blooms to promote or constrain the production of cyanotoxins.  Her early work focused on nitrogen transformations (including the importance of heterotrophic N-fixers). More recently she has been using molecular tools and large environmental metatranscriptomes to address questions concerning the biological degradation of microcystin.  Her current position sees her continuing this work (in collaboration with Dr Drew Steen in EPS) as well as assisting some of our outreach efforts with Dr Jennifer DeBruyn in BESS (UTIA).

Doctoral Candidate, Microbiology

Sam came to UT from Drury University in the fall of 2013.  Her research is currently examining how DNA modifications in viruses shape their resilience in nature.  Her work uses Phycodnaviruses as model systems.

Eric Gann, B.Sc. (U. Mass Amherst)

Doctoral Candidate, Microbiology 

After spending the summer of 2014 in Knoxville as a NSF-funded REU student, Eric has returned to start working on the Aureococcus anophagefferens virus-host system.  He is the team leader in the GBMF project focused on genetically transforming the host, and works in close collaboration with other groups as we are developing information on viral particle structure, protein complement and the role of the large number of auxiliary metabolic genes the virus carries.  

Maddie Denney, M.Sc. (Indiana State)

Doctoral Candidate, Program in Genome Science and Technology

Maddie joined the lab in the summer of 2016 after completing 2 rotations in our group (one on bioinformatics, a second on lipidomics).    She is working on helping to develop an understanding the the physiological plasticiy of Microcystis, trying to understand not only how environmental conditions promote biomass formation, but how conditions allow Microcystis to outcompete out members of the community. To date her work has focused on Microcystis lipidomics as well as the use of large transcriptional data sets. 

Lena Pound, M.Sc. (College of Charleston)

Doctoral Candidate, Microbiology

Lena has returned to Knoxville to begin to work on her PhD.  Lena completed her undergraduate at the University of Tennesse, where she spent nearly 5 years working as a research assistant in the Wilhelm group.   After 2 years working on marine systems and living on the coast, her new research will return her to freshwater systems to look at the virus community associated with Microcystis bloom events and the potential role of lysogeny in allowing for the maintenance of near mono-specific communities during these large blooms.

Naomi Gilbert,  B.Sc. (James Madison)       

Doctoral Candidate, Microbiology

Naomi came to teh lab in the fall of 2017 from James Madison University (and former AMERG member Morgan Steffen's lab).  Naomi's dissertation research will see her collecting samples in the southern ocean as part of a research collaboration with scientists at CSIRO (Hobart) and Bigelow.  Her focus will be to resolve virus-host interactions from transcriptional data sets as well as to characterize the interplay between bacteria and phytoplankton with respect to trace metal cycling in marine surface waters.

Shelby Whitehead

Undergraduate Assistant,  Microbiology/Journalism

Shelby is a double major, studying both biology and journalism.  She joined the lab initially in the spring of 2018.  After spending a summer at ORAU, she has returned to the lab to continue her efforts in both science journalism and the resolution of how giant viruses shape the world.