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Sexual differentiation and sex determination in the Apicomplexa
Trends in Parasitology, 2002Protozoan parasites of the phylum Apicomplexa have complex life cycles involving various types of asexual division that allow rapid proliferation of parasites within one or more hosts. Such replication is punctuated by obligate sexual differentiation that produces male and female gametocytes.
Todd G. Smith+2 more
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Rhomboid proteases in invasion and replication of Apicomplexa
Molecular Microbiology, 2015SummaryIn this issue of Molecular Microbiology, Rugarabamu and colleagues investigate the role of rhomboid proteases responsible for adhesin shedding during invasion of the apicomplexan parasite Toxoplasma gondii. This study, together with several other recent publications, raises new questions about the function of these rhomboids in Toxoplasma, while
Christopher J. Tonkin+3 more
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Neospora caninum (Apicomplexa) in a Stillborn Goat
The Journal of Parasitology, 1992Tissue cysts of Neospora caninum were found in sections of brain from a stillborn pygmy goat. The tissue cysts had 1-2-microns-thick cyst walls and stained with anti-N. caninum serum in an immunohistochemical test. Glial nodules, mononuclear perivascular cuffing, and foci of inflammation were associated with N. caninum tissue cysts throughout the brain.
Acland Hm, Hamir An, Jitender P. Dubey
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The plastid in Apicomplexa: what use is it?
International Journal for Parasitology, 2000An extrachromosomal genome of between 27 and 35 kb has been described in several apicomplexan parasites including Plasmodium falciparum and Toxoplasma gondii. Examination of sequence data proved the genomes to be a remnant plastid genome, from which all genes encoding photosynthetic functions had been lost.
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Subpellicular Microtubules in Apicomplexa and Trypanosomatids [PDF]
The cytoskeleton plays a fundamental role in various processes such as the establishment of cell shape, cell locomotion, and the intracellular motility of various structures found in eukaryotic cells. Microtubules are among the most conspicuous structures in the cytoskeleton.
Márcia Attias, Wanderley de Souza
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Centrosomes and Cell Division in Apicomplexa
2012Apicomplexans are curious single-celled organisms. Belonging to the group of chromalveolates, life for an apicomplexan can be parasitic and some species can cause diseases such as malaria or toxoplasmosis. No apicomplexan is alike, although they share some common features such as being highly polar cells with unique apical organelles. They often change
Leandro Lemgruber+2 more
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Secretory Organelles in Apicomplexa
2010Apicomplexa interactions with their host are exquisitely dependent on unique secretory organelles that exocytose their contents during gliding motility, attachment, and host cell invasion. Recent developments boosted by molecular genetics and high throughput methods have unraveled a number of biological processes and allowed a better understanding of ...
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The Taxonomy of Sarcocystis (Protozoa, Apicomplexa) Species
The Journal of Parasitology, 1986The taxonomy of the heteroxenous apicomplexan protozoan genus Sarcocystis was reviewed, and a list of 122 species with their synonyms and hosts given. Both definitive and intermediate hosts are known for only 56 species. The fine structure of the sarcocyst wall may change with age and is not considered necessarily satisfactory for separating species ...
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