Rhizoplast

Root-like fiber below the flagella of some eukaryotes

The rhizoplast is an organelle present in a variety of flagellates, including ochrophyte and chlorophyte algae and some fungi. This term is used for a variety of striated, fibrous root-like structures that attach to the basal bodies (kinetosome) of the flagella and end in some other organelle. In the strictest sense, the term refers specifically to a type of root that is composed of contractile microfibrils of centrin and connects directly to the surface of the cell nucleus.

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