Cytochemical and immunofluorescence investigations on insulin-like producing cells in the intestine of Mytilus edulis L. (Bivalvia)

Summary Insulin-like immunoreactivity can be localized to cells of the intestine in the-area of the hepatopancreas of Mytilus edulis L. No cross-reactivity can be obtained with anti-glucagon, anti-gastrin, anti-pentagastrin or anticaerulin. The cells containing the substance immunoreactive to mammalian anti-insulin, can be restained with paraldehyde-fuchsin.I thank Prof. A.G.E. Pearse for the opportunity to carry out this work in the Department of Histochemistry, Royal Postgraduate Medical School, London, England. The work was carried out with the aid of a grant from the Studienstiftung des Deutschen Volkes e.V., Germany (FRG).Dedicated to Prof. Dr. Drs. h.c. W. Bargmann at his 70th birthday.