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. 1999 Jan;119(1):89–100. doi: 10.1104/pp.119.1.89

Figure 5.

Figure 5

Effects of class-specific proteinase inhibitors on the FITC-casein-hydrolyzing activities of extracts from 6-, 18-, and 30-month-old tubers. FITC-casein was added to tuber extracts containing each inhibitor and hydrolysis was assessed after 60 min of incubation at 37°C. Spectrofluorometric units are emission at 520 nm following excitation at 500 nm. Proteinase inhibitors include PMSF and AEBSF (Ser-type), E-64 and leupeptin (Cys-type), pepstatin (Asp-type), and EDTA (metallo-type). Data are averages ± se of three replicates. Numbers in bars are percent inhibition relative to control (no inhibitors present).