The Follicle Cell Epithelium of Maturing Ovaries ofLocusta Migratoria:A New Biosynthetic Tissue for Ecdysone

Authors:
  • FGFrancine Goltzené
    Francine Goltzené
  • MLMarie Lagueux
    Marie Lagueux
  • MCMaurice Charlet
    Maurice Charlet
  • JHJules A. Hoffmann
    Jules A. Hoffmann

Abstract
Follicle cells of maturing ovaries of Locusta migratoria are demonstrated to synthesize the moulting hormone ecdysone (2beta,3beta,14alpha,22R,25-pentahydroxy-5beta-cholest-7-en-6-one). Studies of secretory kinetics under in vitro conditions show that the intensity of hormone secretion is strictly dependent on the stage of maturation of the excised ovaries.

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