Figure 6. Confocal scanning laser microscopy images of Geobacter sulfurreducens mutants.

Confocal scanning laser microscopy images of current harvesting mutant biofilms and complemented strains . Cell stained green indicate metabolically active, cells strain red indicate metabolically inactive. A–C. slices through biofilm parallel to electrode large panel and perpendicular to electrode top and side panel; A. omcZ mutant, B. omcZ complement, C. pilA complement; D–E. 3-D projection, top view, fumarate control biofilms, D. omcZ mutant, E. pilA mutant.