Parasitology Research

, Volume 77, Issue 4, pp 335–340 | Cite as

Helmichia glandulicola sp.nov. (Microspora, Thelohaniidae): morphology, development and influence on salivary glands ofChironomus anthracinus (Diptera, Chironomidae)

  • Wolfgang F. Wülker
  • Jaroslav Weiser
Original Investigations


Helmichia glandulicola, a microsporidian parasite specific for cells of the salivary glands of the midgeChironomus anthracinus, is described. It is characterized by tubular spores with a distinct polar cap that are enclosed in persistent octosporous pansporoblasts. The pansporoblastic membrane is formed early during the first sporogonial division. A granular secretion occurs in the pansporoblast among the oval sporoblasts, which subsequently become tubular and display a rigid polar filament. The solitary infected cell reacts with hypertrophy and depletion of its endoplasmic reticulum and ribosomal system. There are differences in the morphology of mitochondria in infected vs noninfected cells. The production of saliva by the host is only partially reduced following infection.


Endoplasmic Reticulum Salivary Gland Infected Cell Polar Filament Microsporidian Parasite 
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.


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Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • Wolfgang F. Wülker
    • 1
  • Jaroslav Weiser
    • 2
  1. 1.Institut für Biologie I (Zoologie), der UniversitätFreiburgGermany
  2. 2.Institute of EntomologyAcademy of SciencesČeské BudějoviceCzechoslovakia

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