SYNTHESE EINES DOTTERPROTEINS BEI LEUCOPHAEA 721 



' ef and ovary homogenate were simultaneously electrophorized, it follows that some 

 § e dî the haemolymph proteins are taken up by the oocytes during vitellogenesis. 

 eru Shortly after the beginning of maturation, the female protein makes up the highest 

 lec [proportion of the soluble proteins in the ovaries; it seems to become insoluble 

 Hn the course of yolk formation. Since the changes in the concentration of the 

 !n îfemale protein in the haemolymph do not reflect its uptake into the oocytes it 

 ^ [ts assumed that it is synthesized continually during the egg maturation period. 

 !a The female protein is absent in decapitated females, but présent in a high concen- 



tration in decapitated females with implanted corpora allata. Therefore a hormone 

 Ê released by the corpora allata is responsible for the synthesis of this protein. 

 m Electron microscopical studies provide no évidence for protein synthesis in the 



soocyte or in the follicle cells but they show that haemolymph proteins may be 



taken up into the oocytes by micropinocytosis. 



LITERATURVERZEICHNIS 



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