The microtubular cytoskeleton of three dinoflagellates: an immunofluorescence study.

The sub-thecal microtubular cytoskeleton of the dinoflagellates Amphidinium rhynchocephalum, Gymnodinium sanguineum, and Gymnodinium. sp has been investigated by indirect immunofluorescence microscopy. In these cells, the majority of cytoskeletal microtubules lie in the anterior-posterior plane. These longitudinal microtubules clearly originate from one of two radially arranged microtubular bands that correspond in location with the anterior and posterior edge of the cingolar depression. Despite the morphological variability of these gymnodinioid dinoflagellates, our data indicate that the microtubular cytoskeleton perfectly reflects the spatial patterning of the epicone and hypocone in each cell. [ABSTRACT FROM AUTHOR]