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Choanoflagellates are capable of both asexual and sexual reproduction. [9] They have a distinctive cell morphology characterized by an ovoid or spherical cell body 3–10 μm in diameter with a single apical flagellum surrounded by a collar of 30–40 microvilli (see figure).
1 Ogo 2017 · Choanoflagellates are a group of unicellular and colonial heterotrophic flagellates within the Opisthokonta. The characteristic choanoflagellate cell morphology, present in all species, is an ovoid to round protoplast with one apical flagellum surrounded by a collar...
choanoflagellate, any protozoan of the flagellate order Choanoflagellida (sometimes classified in the order Kinetoplastida) having a transparent food-gathering collar of cytoplasm around the base of the flagellum. Many choanoflagellates are solitary and sessile (attached to a surface), with or without a stalk.
A few living choanoflagellates, such as Proterospongia, are colonial for part of their life cycle, and show a limited degree of cell differentiation and integration into a unit; these colonial choanoflagellates are the best living examples of what the ancestor of all metazoans may have looked like.
30 Sep 2015 · Choanoflagellates are important consumers of bacteria. Being unicellular filter feeders, choanoflagellates are important bacterivores in aquatic environments, both in marine and freshwater. Beyond their ecological importance they are important in evolutionary biology as the closest unicellular relatives of Metazoa.
19 Jun 2020 · There are many species of choanoflagellates. In their communities, they are more abundant compared to other nanoplankton species but the factors that lead to their distribution and dispersion are...
22 Feb 2005 · This relationship means that choanoflagellates are to metazoans – all animals, from sponges to flatworms to chordates – what chimpanzees are to humans. They offer the opportunity for unprecedented new insights into the origins, early evolution and basic cell biology of Metazoa.
