Rotifers ingest oocysts of Cryptosporidium parvum

Journal of Eukaryotic Microbiology
By: , and 



Six genera of rotifers including Philodina, Monostyla, Epiphanes, Euchlanis, Brachionus, and Asplanchna were exposed to oocysts of Cryptosporidium parvum cleaned of fecal debris. Unstained oocysts and those stained with fluorescein-conjugated monoclonal antibody were added to suspensions of viable rotifers and were examined by phase-contrast, differential interference contrast, and fluorescence microscopy. Rotifers of all six genera were observed ingesting oocysts. A maximum of 25 oocysts was observed in the stomachs of Euchlanis and Brachionus. Euchlanis and Epiphanes were observed excreting boluses containing up to eight oocysts. It was not determined whether rotifers digested or otherwise rendered oocysts nonviable.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Rotifers ingest oocysts of Cryptosporidium parvum
Series title Journal of Eukaryotic Microbiology
DOI 10.1111/j.1550-7408.2000.tb00026.x
Volume 47
Issue 2
Year Published 2000
Language English
Publisher International Society of Protistologists
Contributing office(s) National Wildlife Health Center
Description 3 p.
First page 161
Last page 163