Presence of electrondense material under the vitelline membrane of Scaptotrigona postica Latr. egg (Hymenoptera, Meliponinae) during the embryogenesis initial phase

The present paper reports the presence of an electrondense material of unknown nature distributed under the viteline membrane of Scaptotrigona postica egg. The dorsal side layer is thicker then the ventral one. In eggs newly oviposited the material is gradually distributed inside the plasmalema inva...

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Bibliographic Details
Published in:Memórias do Instituto Oswaldo Cruz 1989-01, Vol.84 (supl. IV), p.139-144
Main Authors: Cruz-Landim, C, Beig, D
Format: Article
Language:Portuguese
Subjects:
Apidae
Hymenoptera
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Summary:The present paper reports the presence of an electrondense material of unknown nature distributed under the viteline membrane of Scaptotrigona postica egg. The dorsal side layer is thicker then the ventral one. In eggs newly oviposited the material is gradually distributed inside the plasmalema invaginations. Later on (12 hs after oviposition) when a blastoderm is already formed around the egg, the material moves to the intercellular space. On the sequences of the development there was no more indication of the material under the membrane.
ISSN:0074-0276