초록
<P>The screening and cellulase production study of cellulase production microorganisms was the basis for the purpose. CMC medium was used in this study to isolate cellulose degrading bacteria. As a result, six strains were obtained from the soil, one strains of which Streptomyces-2 had higher cellulase activities in the Liquid fermentation medium of Straw, which was 3.230U/mL. By morphological observation and physiochemical analysis, it was primarily classified as Streptomyces sp which study less. It provides a new species for the cellulase application in the field of bio-chemical. At the same time it provides a new way for the cellulase applied to microbial conversion for low-rank coal in the future.</P>