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SEM images of un-pretreated and pretreated corn stover samples with G. trabeum .[A-B] pretreated sample with G. trabeum KU-41 500x (A), 1000x (B); [C-D] pretreated sample with G. trabeum NBRC 6430 500x (C), 1000x (D); [E-F] un-pretreated sample 500x (E), 1000x (F).
