Zeitschrift für Parasitenkunde

, Volume 59, Issue 3, pp 295–298 | Cite as

The detection of rickettsia-like microorganisms within the ovaries of femaleIxodes ricinus ticks

  • David Lewis


An ultrastructural study of tick-borne fever (TBF)-infectedIxodes ricinus ticks revealed the presence of rickettsia-like microorganisms within the ooplasm and the mitochondria of developing oocytes.

These microorganisms are similar in appearance to the TBF agent and it is possible that although transovarial transmission of the TBF agent apparently does not occur, the rickettsiae are at least able to establish themselves in the ovaries of infected ticks.


Ultrastructural Study Infected Tick Transovarial Transmission Ricinus Tick 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Balashov, Ya.S.: Bloodsucking ticks (Ixodoidea) — vectors of diseases of man and animals. Misc. Publs. Entomol. Soc. Am.8, 163–376 (1972)Google Scholar
  2. Burgdorfer, W., Briton, L.P., Hughes, L.E.: Isolation and characterisation of symbiotes from the Rocky Mountain wood tick,Dermacentor andersoni. J. Invertebr. Pathol.22, 424–434 (1973)Google Scholar
  3. Lewis, D.: Localisation of the tick-borne fever agent in the sheep tick,Ixodes ricinus. Parasitology75, 37–38 (1977)Google Scholar
  4. Macleod, J., Gordon, W.S.: Studies in tick-borne fever of sheep. 1. Transmission by the tickIxodes ricinus with a description of the disease produced. Parasitology25, 273–283 (1933)Google Scholar
  5. Millonig, G.: Advantage of a phosphate buffer for osmium tetroxide solutions in fixation. J. Appl. Physiol.32, 1637 (1961)Google Scholar
  6. Reinhardt, C., Aeschlimann, A., Hecker, H.: Distribution of Rickettsia-like microorganisms in various organs of anOrnithodorus moubata laboratory strain (Ixodoidea, Argasidae) as revealed by electron microscopy. Z. Parasitenkd.39, 201–209 (1972)Google Scholar
  7. Roshdy, M.A.: Rickettsia-like symbiotes in ticks. Acarologia6, 279 (1964)Google Scholar

Copyright information

© Springer-Verlag 1979

Authors and Affiliations

  • David Lewis
    • 1
  1. 1.Department of Pure and Applied ZoologyUniversity of LeedsLeedsEngland

Personalised recommendations