The electric current from Escherichia coli and the effect of resin on it.

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Abstract
The mechanism of electric-current generation by E. coli IAM 1016 and the effect of an anion-exchange resin on the amount of the current were investigated by using the electrode system developed by Matsunaga et al. The current was increased by addition of succinic acid or glucose, and the increased current was diminished by arsenite. Rotenone and antimycin A3, inhibitors of the respiratory chain, increased the current at lower concentrations and decreased it at higher. The current primarily results from respiratory activity and the source of electrons transferred to the electrode is located along the respiratory process. The current was diminished by addition of the resin. This results suggests that electrons can be transferred from cells to resin and to the electrode. The transfer of electrons to the resin changed the rate of glucose uptake and enhanced the respiratory activity of the organism.

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