Bigelow Laboratory for Ocean Sciences

Ocean Life, Planet Health

Emily Fleming

Emily J. Fleming

Postdoctoral Research Associate
ph: 207 315-2567 Ext 402


2007 Ph.D., Microbiology
University of California, Davis

1999 B.S., Microbiology
University of California, Davis

Research Interests

My current research focuses on the phylogenetic and metabolic diversity of neutrophilic iron-oxidizing bacteria. I am involved in several projects that include examining the phylogenetic diversity of iron-oxidizing bacteria at the Loihi seamount, characterizing the physiology and ecology of iron-oxidizing bacteria from a local wetland iron-seep. I am broadly interested in the physiological conditions that allow micro-organisms to grow and make their living off inorganic substrates. 

Prior to working at Bigelow Laboratory I completed a PhD in Microbiology at the University of California, Davis. Working in the laboratory of Douglas C Nelson, I determined the relative contribution of sulfate-reducing and iron-reducing bacteria to mercury methylation in both freshwater and marine systems.


Fleming, EJ R Davis, C, Moyer, CS Chan, B Tebo D Emerson. (2013) Hidden in plain sight: discovery of tubular sheath-forming Zetaproteobacteria associated with microbial iron mats at Loihi Seamount. FEMS Microbial Ecology. doi: 10.1111/1574-6941.12104 

McBeth, JM, EJ Fleming, D Emerson. (2013) The transition from freshwater to marine iron-oxidizing bacterial lineages along a salinity gradient on the Sheepscot River, Maine USA. Environmental Microbiology Reports. doi: 10.1111/1758-2229.12033

EE Roden, JM McBeth, M Blöthe, EM Percak-Dennett, EJ Fleming, RR Holyoke, GW Luther III, D Emerson, J Schieber. (2012) The microbial ferrous wheel in a neutral pH groundwater seep. Frontiers in Microbiological Chemistry. 3 doi:10.3389/fmicb.2012.00172

Fleming, EJ, AE Langdon, M Martinez-Garcia, RS Stepanauskas, N Poulton, D Masland, D Emerson. (2011) What’s new is old: resolving the identity of Leptothrix ochracea using single cell genomics, pyrosequencing and FISH. PLoS ONE 6(3): e17769. doi:10.1371/journal.pone.0017769

Chan, CS, SC Fakra, D Emerson, EJ, Fleming, KJ Edwards (2010). Lithotrophic Fe-oxidizing bacteria form organic stalks to control mineral growth: implications for biosignature genesis. ISME Journal . doi:10.1038/ismej.2010.173

Emerson, D, Fleming EJ and McBeth JM. (2010) Iron-oxidizing bacteria: An environmental and genomic Perspective. Annual Reviews of Microbiology 64: 561-583. doi:  10.1146/annurev.micro.112408.134208

Fleming, EJ, EE Mack, PG Green and DC Nelson (2006) Mercury Methylation from Unexpected Sources: Molybdate-Inhibited Freshwater Sediments and an Iron-Reducing Bacterium. Applied and Environmental Microbiology 72: 457-464. doi:10.1128/AEM.72.1.457-464.2006