It is at 7 8 and 6 0 in PBS for SOD and POD,respectively,in tall fescue. However the optimum pH for SOD is at 7 8 in PBS or 8 2 in Tris HCl buffer and for POD is 5 0 in HAc NaAc buffer in Kentucky bluegrass.

• 但SOD和POD的最适pH不同 ,高羊茅地上部SOD和POD的最适pH在PBS中分别为 7 8和 6 0 ,而草地早熟禾SOD在PBS中的最适pH为 7 8,在Tris HCl缓冲液中的最适pH为 8 2 ,其POD的最适pH在醋酸缓冲液中为 5 0。