| Popis: |
1. 1. Hymenolepis nana of mice and rats has been successfully infected with Nosema helminthorum . In this cestode the microsporidian shows all the stages of development as seen in naturally infected Moniezia . The spores are, however, of a smaller size and the cycle is probably of shorter duration. 2. 2. One specimen of Taenia saginata in the human host was experimentally infected with this microsporidian, but only early developmental stages were seen. 3. 3. Two oribatid mites, Ceratoppia bipilis and Xenillus tegeocranus were also infected with this organism. The spores developed in the midgut and caeca and were very much smaller than those developing in H. nana . 4. 4. Although the cuticle-penetrating stages of this parasite could not be demonstrated, there is little doubt that in the experimentally infected worms as well as in naturally infected Moniezia the sporoplasm enters the host tissues through the cuticle. |
