Fig. 1From: Electrochemical performance and microbial community profiles in microbial fuel cells in relation to electron transfer mechanismsEvolution of acetate (■), biomass concentration (●), and cell voltage (▲) under operational conditions (65 KΩ) along the experiment in MFC-A (a), MFC-D (b) and MFC-N (c). Dashed lines show the acetate feedsBack to article page