Forty‐five species of dinoflagellates were surveyed for the presence of a pellicular layer in the amphiesma or cell covering. Such a layer was found in 15 of the 20 genera studied. Half the pellicles tested were resistant to acetolysis and may contain a sporopollenin‐like material similar to that of some dinoflagellate cyst walk. Most organisms which formed pellicles were capable of reinforcing this layer with cellulose. Pellicles ofHeterocapsa niei(Loeblich) Morrill & Loeblich andScrippsiella trochoidea(Stein) Loeblich were studied with the electron microscope. Evidence is presented indicating that dividing cells ofS. trochoideafrom new walls while still enclosed in the parental pellicular layer.
No takes yet. Share an insight, caveat, or question.
Morrill et al. (1981) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: