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1 October 2002 Rotifers Ingest Giardia Cysts
J. M. Trout, E. J. Walsh, R. Fayer
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Abstract

Seven species of rotifers representing 6 genera, Epiphanes, Plationus, Asplanchna, Philodina species A, Philodina species B, Platyias, and Brachionus, were exposed to Giardia cysts isolated from the feces of experimentally infected holstein calves. Giardia cysts were prestained with a fluorescein isothiocyanate–conjugated monoclonal antibody and mixed with viable rotifers on 3-well Teflon-coated microscope slides. Organisms were observed with phase-contrast, differential interference contrast, and fluorescence microscopy. Five rotifer species, Epiphanes brachionus, Plationus patulus, Philodina (both A and B), and Platyias quadricornis, ingested varying numbers of cysts, which were retained within the rotifers' bodies throughout the observation period. Rotifer ingestion of Giardia cysts may represent a means of reducing water contamination.

J. M. Trout, E. J. Walsh, and R. Fayer "Rotifers Ingest Giardia Cysts," Journal of Parasitology 88(5), 1038-1040, (1 October 2002). https://doi.org/10.1645/0022-3395(2002)088[1038:RIGC]2.0.CO;2
Published: 1 October 2002
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