4 CVs of anaerobically grown A 4 CVs of anaerobically grown A. hydrophila PA3 cell suspension treated under different conditions after 30 min exposure to air. Full line, aeration for 30 min; dotted line, 20 min N<sub>2</sub> gassing after aeration; small-dash line, incubation for 20 min with 20 mM NaNO<sub>3</sub> after aeration; dash-dotted line, incubation for 20 min with 20 mM NaNO<sub>3</sub> and 20 mM glycerol after aeration; and long-dash line, incubation for 20 min with 20 mM NaNO<sub>3</sub> and 20 mM glycerol in an electrochemical cell poised at 200 mV after aeration. From: A novel electrochemically active and Fe(III)-reducing bacterium phylogenetically related to Aeromonas hydrophila, isolated from a microbial fuel cell FEMS Microbiol Lett. 2003;223(1):129-134. doi:10.1016/S0378-1097(03)00354-9 FEMS Microbiol Lett | © 2003 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved. 1