Figure 2From: Characterization of a filamentous biofilm community established in a cellulose-fed microbial fuel cellFE-SEM images for anode biofilms adhering onto graphite-fiber anodes (day 216). Arrows indicate graphite fibers, while an arrowhead indicates a cellulose fiber. The bar in panel A is 20 μm, while those in the other panels are 5 μm.Back to article page