Fig. 1From: The diversity and specificity of the extracellular proteome in the cellulolytic bacterium Caldicellulosiruptor bescii is driven by the nature of the cellulosic growth substrateGrowth of C. bescii on complex medium with different a soluble or b insoluble components of plant biomass. Cultivation was performed in 1-L closed bottles filled with 400 mL medium, under a N2/CO2 (80/20) atmosphere, with glucose (open squares), cellobiose (open circles), xylose (open triangles), crystalline cellulose (closed circles), birchwood xylan (closed triangles), and on unpretreated switchgrass (crosses), at substrate concentrations of 5 g L−1. After cultures reached the mid-to-late exponential growth phase (7.0–1.5 × 108 mL−1; indicated by arrows), supernatants containing the extracellular proteins were separated from the cells by centrifugation. Representative growth curve shown for each substrateBack to article page