Risely Ferraz de Almeida, Emmanuel Rezende Naves, Raquel Pinheiro da Mota
The β-glucosidase (BG) enzyme is widely distributed in nature and is related to the carbon cycle, acting in the cleavage of cellobiose into glucose molecules. Because of its sensitivity, this enzyme is considered a soil quality indicator and is directly related to the quantity and quality of soil organic matter. However, in soils with the addition of organic material with a high C:N ratio and high amounts of lignified roots there is less BG activity and therefore slow organic matter decomposition. In relation to land use and management, BG activity tends to be higher in soils with high content of easily decomposable organic matter, that is, in preserved soils and also in soils under crop rotation and direct planting. Furthermore, the addition of the soil organic residues such as biosolids, manure, urban sludge and poultry litter, also increase the activity of this enzyme in the soil.
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