Three-dimensional ultrastructure of Plasmodium falciparum throughout cytokinesis. 2020

Rachel M Rudlaff, and Stephan Kraemer, and Jeffrey Marshman, and Jeffrey D Dvorin
Biological and Biomedical Sciences, Harvard Medical School, Boston, Massachusetts, United States of America.

New techniques for obtaining electron microscopy data through the cell volume are being increasingly utilized to answer cell biologic questions. Here, we present a three-dimensional atlas of Plasmodium falciparum ultrastructure throughout parasite cell division. Multiple wild type schizonts at different stages of segmentation, or budding, were imaged and rendered, and the 3D structure of their organelles and daughter cells are shown. Our high-resolution volume electron microscopy both confirms previously described features in 3D and adds new layers to our understanding of Plasmodium nuclear division. Interestingly, we demonstrate asynchrony of the final nuclear division, a process that had previously been reported as synchronous. Use of volume electron microscopy techniques for biological imaging is gaining prominence, and there is much we can learn from applying them to answer questions about Plasmodium cell biology. We provide this resource to encourage readers to consider adding these techniques to their cell biology toolbox.

UI MeSH Term Description Entries
D010963 Plasmodium falciparum A species of protozoa that is the causal agent of falciparum malaria (MALARIA, FALCIPARUM). It is most prevalent in the tropics and subtropics. Plasmodium falciparums,falciparums, Plasmodium
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D048749 Cytokinesis The process by which the CYTOPLASM of a cell is divided. Cytoplasmic Division,Cytokineses,Cytoplasmic Divisions,Division, Cytoplasmic,Divisions, Cytoplasmic

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