Morphology of the Cyst of Giardia microti by Light and Electron Microscopy

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ABSTRACT. Cysts of Giardia microti, isolated from feces and intestinal contents of Microtus ochrogaster, were examined by light and electron microscopy. These cysts differed morphologically from cysts of other G. duodenalis morphological types in that these cysts often contained two apparently differentiated trophozoites with mature ventral discs. Cysts more closely resembling those reported for G. lamblia and G. muris were in greater abundance in preparations made from intestinal contents and were interpreted as immature cysts. “Multiple fission” cysts, reported in G. muris and G. microti by earlier workers, were not observed; however, endosymbiotic bacteria were found in the cysts of G. microti and may have been responsible for reports of multiple fission in the cysts of Giardia.

Original languageEnglish (US)
Pages (from-to)52-54
Number of pages3
JournalThe Journal of protozoology
Issue number1
StatePublished - Feb 1988

ASJC Scopus subject areas

  • Parasitology


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