Abstract

A. Butenandt and his coworkers (1961) isolated bombykol from lateral glands of female moths of Bombyx mori and identified its chemical structure as trans-10, cis-12-hexadecadiene-1-ol. However the pathway of the biosynthesis of bombykol has not been studied yet. The present investigation was undertaken to clarify this biosynthesis. The starting material used for the biosynthetic study in vivo was palmitic acid. It will be converted to cetyl alcohol and esterified with phosphoric acid. Cetyl phosphate was dehydrogenated specifically at the positions of carbon 10 and 12 by a kind of oxygenase, which appeared in the abdominal tip of Bombyx female pupa at the final pupal stage.

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