(A) Current production in plant microbial fuel cell (PMFC) and unplanted
sediment microbial fuel cell (SMFC) control with a 1000 X external load, and (B)
polarization curve and (C) electrode potentials (vs Ag/AgCl) as a function of current
density in the PMFC. Both anodes were first inoculated in original sediment and
then transferred to MFCs at time I. Maximum power densities were tested at time II.
Plants were removed from reactor at time III for analysis