Ultrastructural Study of the Midgut Mycetome-Bacteroids of the Tsetse Flies Glossina morsitans,G. fuscipes, and G. brevipalpis (Diptera, Brachycera)*

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Date
1972
Authors
Reinhardt C.
Steiger R.
Hecker H.
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Abstract
Endosymbiosis bacteroids are known to occur within cells of a wide variety of insect). Symbiosis of microorganisms with blood-sucking arthropods is so common that one may imagine that essential advantages for the host result from it. In view of these facts it is remarkable that there is very little accurate knowledge of the endosymbiotes in the tsetse-fly, the vector of trypanosomes have found a giant-cell zone in the anterior segment of the midgut of several Glossina species. These cells appear hypertrophied and get infected by rod-shaped bacteroids during metamorphosis. Classified these bacteroids as being gram-negative. In the present paper we want to describe the fine structure of the mycetome in the midgut of Glossina morsitans, G. juscipes and G. brevipalpis and to prove the gram-negative character of their symbiotes.
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Parasitology