Comment on microbial community composition Is unaffected by anode potential

While bioelectrochemical systems (BESs) such as microbial fuel cells (MFCs) or microbial electrolysis cells (MECs) remain promising technologies, their widespread use for the sustainable production of energy from wastewaters is yet to be realized. Establishment of anode-respiring bacteria (ARB) at the anode surface is considered an important determinant of BES performance. Because ARB use the anode for respiration, it should be possible to use anode potential as a mechanism to select various ARB communities with different electron transfer properties