The Effect of 6-Benzyl Aminopurine on the Activities of Four Extracellular Enzymes in Plurotus ostreatus and Lentinula edodes Mycelium

Four extracellular enzyme activities in Pleurotus ostreatus and Lentinula edodes mycelium were determined by adding to different dosage additional 6-benzyl aminopurine (6-BA) in potato liquid medium. The results showed that low concentration of 6-BA promoted their activities and high concentration inhibited their activities. For Pleurotus ostreatus and Lentinula edodes, the optimum concentration of 6-BA to activate their extracellular amylase, carboxymenthel cellulase and catalase was the same which was 1.5 mg/100 mLculture solution. But, the optimum concentration for their extracellular protease was 0.5 mg/100 mLculture solution.