Thermophilic sporotrichum was mutagenized with the ultraviolet rays and the strain TH3-9 was attained.CMCase production of the strain TH3-9 was increased by 2.6 times and FPAase production was increased by 2.0 times,compared with the parent strain.The optimum condition of liquid fermentation for cellulase production of TH3-9 was explored.It was found that the optimum carbon source was bagasse+straw powder(total content was(2.0%) and the proportion of them was 1∶4),the optimum nitrogen source was peptone(tot...