Research Article

A High Diversity in Chitinolytic and Chitosanolytic Species and Enzymes and Their Oligomeric Products Exist in Soil with a History of Chitin and Chitosan Exposure

Figure 4

Isoelectric focusing of crude extracts of selected fungal soil isolates (numbers correspond to Table 1), followed by zymography using overlay gels containing chitosan DA 35% (a) or chitosan DA 56% (b) as a substrate. The pH range of the gels is indicated at the right side.