Fig. 3From: Improved growth rate in Clostridium thermocellum hydrogenase mutant via perturbed sulfur metabolismAltered sulfur flux in C. thermocellumΔhydG and ΔhydG Δech. a Sulfide present in fermentation broth at the end of growth. b Amount of cysteine present in culture supernatant after fermentation. Presence (black bars) and absence (gray bars) added acetateBack to article page