Fig. 4

Oxygen uptake measurements for N. europaea[pSK2] (gray squares and gray line) and untransformed N. europaea (black diamonds and black line). a Measurements made starting with DO at 100% saturation. b Measurements made starting with DO at 25% saturation. All points are averages of five independent experiments; for every experiment at both initial oxygen concentrations and for both strains, the same mass of cells (0.06 OD_600nm) was tested. Error bars indicate standard deviations (which in some cases are smaller than the diameter of the symbols).