Effects of carbon and nitrogen sources on lignocellulose decomposition enzyme activities in Flammulina velutipes
Three Flammulina velutipes strains were used to study the effects of corncob and cottonseed hull as well as different carbon and nitrogen sources on cellulose,hemicellulose and lignin decomposition enzyme activities.The activities of CMCase,xylanase and laccase indicated significant differences among Flammulina velutipes strains (P<0.001),and cultural media significantly affected the activities of CMCase,xylanase and laccase in Flammulina velutipes (P<0.001).The CMCase and xylanase activities on medium with simple carbon sources were significantly reduced than those on medium with complicated carbon sources (P<0.05).The CMCase and xylanase activities on complete yeast medium were significantly decreased than those on media without glucose (P<0.05) or simple nitrogen sources (P<0.05).The laccase activities on media without simple nitrogen sources were significantly lower than those on complete yeast media (P<0.05) and media without glucose (P<0.05),indicating the laccase activities on complicated media were lower than those on media with simple carbon and nitrogen sources.