Fig. 3 e Effect of glutamate concentrations on the
cumulative hydrogen production of DFE by Rps. palustris
TN1 under anaerobic-low light condition (3000 lux) at
30 C. In each panel, symbols are A for 0 mM (control), -
for 2 mM, :for 4 mM, C for 6 mM, and * for 8 mM.