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Wiedmer S, Kurth T, Buder U, Bleischwitz S, Entzeroth R, Kurth M. Correlative light and electron microscopy of wall formation in Eimeria nieschulzi. Parasitol Res 2020; 119:2667-2678. [PMID: 32627078 PMCID: PMC7366593 DOI: 10.1007/s00436-020-06765-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 06/07/2020] [Indexed: 11/29/2022]
Abstract
AbstractCoccidian parasites possess complex life cycles involving asexual proliferation followed by sexual development leading to the production of oocysts. Coccidian oocysts are persistent stages which are secreted by the feces and transmitted from host to host guaranteeing life cycle progression and disease transmission. The robust bilayered oocyst wall is formed from the contents of two organelles, the wall-forming bodies type I and II (WFBI, WFBII), located exclusively in the macrogametocyte. Eimeria nieschulzi has been used as a model parasite to study and follow gametocyte and oocyst development. In this study, the gametocyte and oocyst wall formation of E. nieschulzi was analyzed by electron microscopy and immuno-histology. A monoclonal antibody raised against the macrogametocytes of E. nieschulzi identified a tyrosine-rich glycoprotein (EnGAM82) located in WFBII. Correlative light and electron microscopy was used to examine the vesicle-specific localization and spatial distribution of GAM82-proteins during macrogametocyte maturation by this monoclonal antibody. In early and mid-stages, the GAM82-protein is ubiquitously distributed in WFBII. Few hours later, the protein is arranged in subvesicular structures. It was possible to show that the substructure of WFBII and the spatial distribution of GAM82-proteins probably represent pre-synthesized cross-linked materials prior to the inner oocyst wall formation. Dityrosine-cross-linked gametocyte proteins can also be confirmed and visualized by fluorescence microscopy (UV light, autofluorescence of WFBII).
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Affiliation(s)
- Stefanie Wiedmer
- Faculty of Biology, Institute of Zoology, Technische Universität Dresden, Zellescher Weg 20 B, 01217, Dresden, Germany.
| | - Thomas Kurth
- Center for Molecular and Cellular Bioengineering (CMCB), Technology Platform, Technische Universität Dresden, Fetscherstraße 105, 01307, Dresden, Germany
| | - Ulrike Buder
- Faculty of Biology, Institute of Zoology, Technische Universität Dresden, Zellescher Weg 20 B, 01217, Dresden, Germany
| | - Sinja Bleischwitz
- Faculty of Biology, Institute of Zoology, Technische Universität Dresden, Zellescher Weg 20 B, 01217, Dresden, Germany
| | - Rolf Entzeroth
- Faculty of Biology, Institute of Zoology, Technische Universität Dresden, Zellescher Weg 20 B, 01217, Dresden, Germany
| | - Michael Kurth
- Faculty of Biology, Institute of Zoology, Technische Universität Dresden, Zellescher Weg 20 B, 01217, Dresden, Germany.
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Wiedmer S, Buder U, Bleischwitz S, Kurth M. Distribution and Processing of Eimeria nieschulzi
OWP13, a New Protein of the COWP Family. J Eukaryot Microbiol 2018; 65:518-530. [DOI: 10.1111/jeu.12498] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 12/14/2017] [Accepted: 12/14/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Stefanie Wiedmer
- Faculty of Biology; Institute of Zoology; Technische Universität Dresden; Zellescher Weg 20 B Dresden 01217 Germany
| | - Ulrike Buder
- Faculty of Biology; Institute of Zoology; Technische Universität Dresden; Zellescher Weg 20 B Dresden 01217 Germany
| | - Sinja Bleischwitz
- Faculty of Biology; Institute of Zoology; Technische Universität Dresden; Zellescher Weg 20 B Dresden 01217 Germany
| | - Michael Kurth
- Faculty of Biology; Institute of Zoology; Technische Universität Dresden; Zellescher Weg 20 B Dresden 01217 Germany
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