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  2. en.wikipedia.org › wiki › ApicomplexaApicomplexa - Wikipedia

    The Apicomplexa (also called Apicomplexia; single: apicomplexan) are organisms of a large phylum of mainly parasitic alveolates. Most possess a unique form of organelle structure that comprises a type of (non-photosynthetic) plastid called an apicoplast —with an apical complex membrane .

  3. Apicomplexan, any protozoan of the (typically) spore-producing phylum Apicomplexa, which is called by some authorities Sporozoa. All apicomplexans are parasitic and lack contractile vacuoles and locomotor processes. Apicomplexans live within the body cavities or the cells of almost every kind of.

    • The Editors of Encyclopaedia Britannica
  4. Mar 11, 2021 · Apicomplexan parasites are eukaryotic protozoan organisms and close relatives to ciliates and dinoflagellates. Four decades ago, Apicomplexa were classified into Conoidasida and Aconoidasida indicating presence or absence of a specific apical cell structure called the conoid that contains several rings.

    • Julien Guizetti, Friedrich Frischknecht
    • 2021
  5. Introduction to the Apicomplexa. Parasitic, pathogenic protists. In traditional protist taxonomy, most parasitic protists were placed in the class Sporozoa. This group has since been found to include protists from a number of unrelated lineages, and has been dropped from current usage.

  6. The Apicomplexa phylum is represented by the well-studied T. gondii tachyzoite model. Our analysis revealed that novel apicomplexan central kinase/cyclin complexes also lack expected immediate regulators of opisthokont eukaryotes such as G1 Cdk inhibitors (INK, Kip, Cip), Cdc25 phosphatases, and Wee1 kinase [ 62 ], consistent with cell cycle ...

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