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Zeitschrift für Parasitenkunde

, Volume 44, Issue 2, pp 117–132 | Cite as

Beitrag zur Feinstruktur des Teguments der Cercarien vonSchistosoma mansoni

  • A. Ebrahimzadeh
Article

Zusammenfassung

Das Tegument der Cercarien vonSchistosoma mansoni wurde mit Hilfe des Elektronenmikroskops untersucht, die Befunde mit den bisher beschriebenen Daten verglichen und folgendes festgestellt:
  1. 1.

    Das Tegument und die darunter liegende „fibröse Schicht” sind in der Körperregion kräftiger ausgebildet als in der Schwanzregion.

     
  2. 2.

    Die als „spherical dense bodies” I und II bezeichneten Körperchen treten vorwiegend im Tegument des Körpers auf.

     
  3. 3.

    Wahrscheinlich sind die mit „fibrösem Material” angefüllte F-Schicht und die SbII-Körper an der Cercarien-Hüllenbildung beteiligt.

     
  4. 4.

    Außer den bisher beschriebenen drei Typen von Sinnespapillen scheint noch ein vierter Typ vorhanden zu sein.

     

Abkürzungen

As

Ansatzstelle

D

Desmosome

C

Cilium

Cm

Cilienmembran

Cw

Cilienwurzel

Fs

Fibrös-Schicht

G

Grana

H

Hautfalten

Hr

Hohlraum

Lm

Längsmuskel

M

Membran

Mi

Mitochondrien

N

Nucleus

Np

Nervenplexus

P

Postacetabulärer Drüsenausfuhrgang

Rm

Ringmuskel

S

Stachel

Sb

spherical dense body

Sp

Sinnespapille

Tf

Tegumentarfortsätze

Ts

Tegumentar-Schicht

V

Vesikel

W

Wurzelfaser

Fine structure of the tegument of cercariae ofSchistosoma mansoni

Summary

The tegument ofSchistosoma mansoni was studied with the electrone microscope. The results were compared with previously described data and it was found that:
  1. 1.

    The tegument and the underlying “fibrous layer” are thicker on the body wall than on the tail.

     
  2. 2.

    The so-called “spherical dense bodies” I and II are predominant in the tegument of the cercarial body.

     
  3. 3.

    The material of the “fibrous layer” and SbII probably take part in forming the “Cercarienhülle”.

     
  4. 4.

    In addition to the three types of “sinnespapillae” which have been described previously, there seems to be another type (IV. type).

     

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Copyright information

© Springer-Verlag 1974

Authors and Affiliations

  • A. Ebrahimzadeh
    • 1
    • 2
  1. 1.Institut für Med. Parasitologie der Universität BonnBonnDeutschland
  2. 2.School of MedicineGondi-Shapoor UniversityAhwazIran

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