Abstract
The relative mobility of Trichoderma viride cellulase components adsorbed to several types of leaf litter was determined by measuring the redistribution of enzyme activity after 18 h in a recirculating column. The mobility of native cellulase associated with decomposing leaf litter was also measured. Despite differences in adsorptive capacities among litters, there were no species-specific differences in the relative mobilities of adsorbed cellulase components. There were differences among enzymes. Exoglucanase and endoglucanase had similar but higher mobilities than β-glucosidase. Native cellulase mobility was low for deciduous litter, but white pine litter showed an enzyme-specific pattern with β-glucosidase the least mobile and endoglucanase the most. Exoenzyme mobility may be functionally important in the decomposition process, particularly when the rate of exoenzyme synthesis is low.
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