Fig. 5From: Genome-centric metatranscriptomes and ecological roles of the active microbial populations during cellulosic biomass anaerobic digestionSchematic representation of the functional and ecological roles of the highly transcribed PGs in the GZ-C-35 enrichment culture. PGs were colored following the color code in Fig. 2. The schematics for the other cultures are shown in Additional file 8Back to article page