Fig. 4From: Adding tetrahydrofuran to dilute acid pretreatment provides new insights into substrate changes that greatly enhance biomass deconstruction by Clostridium thermocellum and fungal enzymesCSLM micrographs of solids produced by CELF (left) and DA (right) pretreatment of corn stover (top) and Populus (bottom). Micrographs are of oblique tissue cross sections. Arrows indicate regions of dislocation and fracturing and arrowheads point out coalesced ligninBack to article page