Figure 4

Hydrogenase acitivity as measured in the presence of 5 mM methylviologen and 10 mM dithionite of different amounts of cells. Cells from three independent wild type cultures were measured.
Hydrogenase acitivity as measured in the presence of 5 mM methylviologen and 10 mM dithionite of different amounts of cells. Cells from three independent wild type cultures were measured.