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Cercarial Transformation and in vitro Cultivation of Schistosoma mansoni Schistosomules
Published on: August 16, 2011
Ultrastructure of metacercarial cysts of six heterophyid trematodes from fish
1Department of Biology, Azusa Pacific University, MPT, CA 91702-7000, USA. marmitage@apunet.apu.edu
Abstract:
The ultrastructure of metacercarial cysts of Ascocotyle sexidigita. A. (Phagicola) diminuta, and Pygidiopsoides spindalis (herein described for the first time) collected from natural hosts in California was compared with that of cysts from A. tenuicollis (also described for the first time), A. pachycystis, and A. leighi collected from natural fish hosts in Mississippi. The results show that none of the cysts studied approximated the thick cyst produced by A. pachycystis, but all cysts comprised several layers of putative glycoprotein except for A. (P.) diminuta, which was associated with a single layer of spongy cyst wall.
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