| Abstract: | The increased power output resulting from the addition of small amounts of different substrates to glucose-limited chemostats depended on the added C-source; four types of substrate were recognised. The additional heat evolved increased linearly with the amount of added acetate, but not with glucose or pyruvate. Small amounts of uncouplers disturbed the steady-state power output, and the increased heat was related to the stimulation of the ATPase system. The enhanced power output on increasing the growth pH to 8 was associated with proton translocating ATPase activity. |
