School of Environment and Natural Resources, The Ohio State University, 210 Kottman Hall, 2021 Coffey Rd., Columbus, OH 43210, USA. Lower.30@osu.edu
Antibody recognition force microscopy showed that OmcA and MtrC are expressed on the exterior surface of living Shewanella oneidensis MR-1 cells when Fe(III), including solid-phase hematite (Fe(2)O(3)), was the terminal electron acceptor. OmcA was localized to the interface between the cell and mineral. MtrC displayed a more uniform distribution across the cell surface. Both cytochromes were associated with an extracellular polymeric substance.