Encyclopedia of Parasitology

Living Edition
| Editors: Heinz Mehlhorn


  • Heinz Mehlhorn
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27769-6_1666-2
In the protozoan genera Plasmodium (e.g., agents of malaria), Babesia, and Theileria, the zygote ( Gametes) develops into a motile stage (Figs. 1 and 3) that is able to leave the intestine of the vectors ( mosquitoes or ticks). In Plasmodium, the whole spherical zygote stretches and becomes a slender so-called ookinete. In piroplasms, the kinetes (Fig. 2) develop inside a vacuole of the zygote (Fig. 1). Both kinetes and ookinetes (more correct would be zygotokinetes) are diploid and start early with meiotic nuclear divisions (Figs. 3, 4, 5, 6, and 7, p. 682, 683).


Nuclear Division Genus Plasmodium Motile Stage Protozoan Genus Meiotic Nuclear Division 
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  1. Mehlhorn H (2016) The parasites of humans. 8th ed. Springer, Heidelberg.Google Scholar
  2. Mehlhorn H (2016) The parasites of animals. 8th ed. Springer, Heidelberg.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Institut für Zoomorphologie, Zellbiologie und ParasitologieHeinrich-Heine-UniversitätDüsseldorfGermany