In vitro stimulation by progesterone of the main nidamental glands biosyntheses in the mollusc cephalopod Sepia officinalis L.
Résumé
The nature of the ovarian factor(s) stimulating biosyntheses in the main nidamental glands of Sepia officinalis L. was investigated using radioinimunoassay (RIA) and in vitro bioassay. RIA revealed the occurrence of progesterone in the follicles and hemolymph of maturing and mature females. We observed a dose-dependent stimulation by progesterone of the incorporation of [14C] labelled d-glucose in polysaccharides of nidamental cells in suspension. These results show that the ovary is one of the organs involved in the regulation of the activity of the main nidamental glands.
