Multilaminar/Vesicular Bodies Accumulating Glycoconjugates in Primary Spermatocytes of Cricket, Gryllus bimaculatus

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Lectin cytochemistry was carried out on thin sections of 6th-instar cricket testis using two GalNAc-specific lectins, Dolichos biflorus agglutinin(DBA)and Helix pomatia agglutinin(HPA), and the bind-ing sites in primary spermatocytes were surveyed. Gold particles showing DBA-binding are observed specifically in dense-body clusters. These bodies are about 100-300 nm in diameter and exhibit multilaminar or multivesicular structure. HPA can bind to the dense-body clusters and another kind of larger multivesicular structures. These bodies seem to contain some heterogeneous substances, and sometimes show an autophagosome-like structure. The ultrastructures of these organelles surveyed in conventional Epon sections confirmed the structures of these multilaminar/vesicular bodies in cricket spermatocytes, which may play certain roles in intracellular circulation and degradation of glycoconjugates.
社団法人日本動物学会の論文