The cellulolytic activities of eighteen aerobic fungi, isolated from the microflora of Iran, with respect to Avecil were compared with the cellulolytic activity of Trichoderma reesei, CBS 383.78. The data indicated that the majority of the isolated microorganisms were capable of hydrolysing Avicel in the solid agar media to a better extent than Treesei. However, the hydrolylic activities of the...