Fig. 2

Growth and extracellular hydrolytic enzyme activities of A. fumigatus Z5 with the regulation of cysteine and methionine using rice straw as sole carbon source. a Scanning electron microscope images of the substrates after 4 days of degradation by A. fumigatus Z5 under solid-state fermentation with the regulation of different amino acids; b changes in the activities of endo-glucanase, exo-glucanase, β-glucosidase, and xylanase in different treatments