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Cell and Tissue Research

, Volume 162, Issue 3, pp 343–348 | Cite as

Role of the “thrombocytoids” in capsule formation in the dipteran Calliphora erythrocephala

  • D. Zachary
  • M. Bréhelin
  • J. A. Hoffmann
Article

Summary

Of the three hemocyte types present in the blood of Calliphora, only one participates in capsule formation around implanted cellophane. This hemocyte, the thrombocytoid, shows in the blood a tendency to dissociate into numerous small cytoplasmic fragments, comparable to the mammalian megakaryocyte. This tendency is dramatically increased during the process of encapsulation. Most of the intact thrombocytoids and the numerous fragments participating in capsule formation do not show any particular modifications in their cytoplasm during this process, which corresponds to a mere sequestration of the implant. Dense material, resulting from necrotic cell debris and hemolymph lipoproteins, is often observed between the cellophane and encapsulating thrombocytoids, which apparently participate in the resorption of this material.

Key words

Insects Hemocytes Capsules 

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References

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Copyright information

© Springer-Verlag 1975

Authors and Affiliations

  • D. Zachary
    • 1
  • M. Bréhelin
    • 1
  • J. A. Hoffmann
    • 1
  1. 1.Equipe de Recherche associée au CNRS, “Biologie Humorale des Insectes”, Laboratoire de Biologie Générale, Université Louis PasteurStrasbourgFrance

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