Current Microbiology

, Volume 51, Issue 1, pp 35–40 | Cite as

Sodalis glossinidius (Enterobacteriaceae) and Vectorial Competence of Glossina palpalis gambiensis and Glossina morsitans morsitans for Trypanosoma congolense Savannah Type

  • Anne GeigerEmail author
  • Sophie Ravel
  • Roger Frutos
  • Gérard Cuny


Sodalis glossinidius is an endosymbiont of Glossina palpalis gambiensis and Glossina morsitans morsitans, the vectors of Trypanosoma congolense. The presence of the symbiont was investigated by PCR in Trypanosoma congolense savannah type-infected and noninfected midguts of both fly species, and into the probosces of flies displaying either mature or immature infection, to investigate possible correlation with the vectorial competence of tsetse flies. Sodalis glossinidius was detected in all midguts, infected or not, from both Glossina species. It was also detected in probosces from Glossina palpalis gambiensis flies displaying mature or immature infection, but never in probosces from Glossina morsitans morsitans. These results suggest that, a) there might be no direct correlation between the presence of Sodalis glossinidius and the vectorial competence of Glossina, and b) the symbiont is probably not involved in Trypanosoma congolense savannah type maturation. It could however participate in the establishment process of the parasite.


Polymerase Chain Reaction Detection Human African Trypanosomiasis Vectorial Competence Procyclic Form Immature Infection 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The authors are particularly grateful to B. Tchicaya and J. Janelle for maintenance and management of the tsetse colonies.

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Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • Anne Geiger
    • 1
    Email author
  • Sophie Ravel
    • 1
  • Roger Frutos
    • 2
  • Gérard Cuny
    • 1
  1. 1.IRD, UR035, Laboratoire de Recherche et de Coordination sur les Trypanosomoses, IRD-CIRAD, TA 207/GCampus International de BaillarguetMontpellier cedex 5France
  2. 2.Cirad-Emvt, TA30/GCampus International de BaillarguetMontpellier cedex 5France

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