Figure 6From: Stable coexistence of two Caldicellulosiruptor species in a de novo constructed hydrogen-producing co-cultureEffect of C. saccharolyticus growth supernatant on C. kristjanssonii. Comparison of log phase and maximum biomass concentration of C. kristjanssonii on glucose (10 g L-1) at pH 6.7 and 70°C in batch mode in the presence (A) and absence (B) of C. saccharolyticus cell-free growth supernatant. Symbols: "○", biomass (OD620); "●", accumulative H2. The experiment is a representative of two independent replicates.Back to article page