抄録
Characterization of 5-dehydroquinate hydro-lyase extracted from bomboo shoot was carried out. The enzyme was active over a broad range of pH with no marked peak between pH 6.0 and 8.0. Michaelis constant (Km) for dehydroquinic acid was found to be 1.3×10-5M at pH 7.4. The enzyme activity is highest in the top and tends to decrease quite gradually toward the lower parts of the bamboo shoot, and the results suggests a possible participation of the enzyme in the biosynthesis of lignin through shikimic acid pathway. 5-Dehydroquinate hydro-lyase was demonstrated to be widely distributed in woody plants.
