FINE-STRUCTURE AND MORPHOGENESIS OF THE MICROPYLE APPARATUS IN BEES EGGS

The present paper deals with the description of the formation of the m icropylar apparatus in some species of Apidae bees. The features of th e cells located in the anterior pole of the oocyte chamber are describ ed at light microscopy and with SEM and TEM. The resulting micropylar region has the form of a sieved plate, slightly elevated in relationsh ip to the oocyte surface. It is not clear if all the holes in the siev e are opened.