Chrompodellid
Order of alveolates
Chrompodellids are a phylum of single-celled protists belonging to the Alveolata supergroup. It comprises two different polyphyletic groups of flagellates: the colpodellids, phagotrophic predators, and the chromerids, photosynthetic algae that live as symbionts of corals. These groups were independently discovered and described, but molecular phylogenetic analyses demonstrated that they are intermingled in a clade that is the closest relative to Apicomplexa, and they became collectively known as chrompodellids. Due to the history of their research, they are variously known as Chromerida or Colpodellida (ICZN)/Colpodellales (ICN).
Description and life cycle
Chrompodellids are a phylum of unicellular protists containing two functionally different groups: the photosynthetic "chromerids" and the predatory phagotrophic "colpodellids". Like other Alveolata, they present tubular mitochondrial cristae and highly flattened cortical alveoli with microtubules underneath. They exhibit a conoid-like structure similar to that of apicomplexans, with an apical complex, a micropore and a rostrum. They live as flagellates with two anisokont (i.e. differently sized) flagella that are heterodynamic (i.e. move in different patterns).
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This entry incorporates text from “Chrompodellid” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.