Isolation of Nuclei from a Marine Dinoflagellate

See allHide authors and affiliations

Science  30 Sep 1966:
Vol. 153, Issue 3744, pp. 1661-1663
DOI: 10.1126/science.153.3744.1661


By means of a medium containing dextran, nuclei were isolated in high yield from cells of Gymnodinium nelsoni, a marine dinoflagellate. Most of the DNA, but less than onetenth of the RNA, of the original cells was recovered in the purified nuclei. The nuclei appeared substantially intact as observed by light or electron microscopy. The isolated nuclei were capable of incorporating tritiated uridine triphosphate into material insoluble in cold acid. The general procedure was found to be applicable also to two species of diatoms.