FIGURE 5. MCs and CL enzymatic activities in D. tertiolecta exposed to PAR + UVA + UVB (PAB) for six days. Michaelis-Menten kinetics showed by Boc-7-amino-4-fluoromethyl coumarin (AMC) reporters of the substrates RVRR (Δ), QRR (•), GRR (○), LKR (▾), HEK (▪), and VLK (□) (A); Michaelis-Menten kinetics showed by Ac-7-amino-4-trifluoromethyl coumarin (AFC) reporters of the substrates WEHD (•), DEVD (○), IETD (▾), and LEHD (Δ) (B); Cleavage activity showed by D. tertiolecta under PAB of (AMC) reporters of the substrates RVRR (Δ), QRR (•), GRR (○), LKR (▾), HEK (▪), and VLK (□) (C); Cleavage activity showed by D. tertiolecta under PAB of (AFC) reporters of the substrates WEHD (•), DEVD (○), IETD (▾), and LETD (Δ) (D); Cleavage activity showed by D. tertiolecta during dark-induced CD of (AMC) reporters of the substrates with R in P1 (E), symbols as in (A). Symbols are means of measurements of two independent replicate cultures and three replicate samples from each culture cylinder. Error bars indicate standard deviations.