Fig. 4From: Screening of cellulolytic bacteria from rotten wood of Qinling (China) for biomass degradation and cloning of cellulases from Bacillus methylotrophicusReducing sugar production by different strains in 7% wheat straw, corn stover and switchgrass for 72 h. SEM of wheat straw before (a) and after (b) 72 h fermentation by B. methylotrophicus 1EJ7. X-ray of untreated wheat straw and fermented by B. methylotrophicus 1EJ7 was showed in cBack to article page