Unusual tetraene sterols in some phytoplankton |
| |
| Authors: | G. W. Patterson P. K. Gladu G. H. Wikfors W. R. Lusby |
| |
| Affiliation: | (1) Department of Botany, University of Maryland, 20742 College Park, Maryland;(2) Department of Biology, Lindsey Wilson College, 42728 Columbia, Kentucky;(3) NOAA, National Marine Fisheries Service, Northeast Fisheries Center, 06460 Milford, Connecticut;(4) Insect Neurobiology and Hormone Laboratory, Agricultural Research Service, U.S. Department of Agriculture, 20705 Beltsville, Maryland |
| |
| Abstract: | Sterols were analyzed from four phytoplankton strains which are under investigation as possible sources of food for oysters in culture. One strain ofPyramimonas contained only 24-methylenecholesterol as a major sterol component.Pyramimonas grossii, Chlorella autotrophica andDunaliella tertiolecta each contained a complex mixture of C28 and C29 sterols with Δ7, Δ5,7 and Δ5,7,9(11) nuclear double bond systems. Sterols were found both with and without the C-22 side chain double bond. Ergosterol and 7-dehydroporiferasterol were the principal sterols in each of the latter three species, which also contained the rare tetraene sterols, 24-methylcholesta-5,7,9(11),22-tetraen-3β-ol and 24-ethylcholesta-5,7,9(11),22-tetraen-3β-ol. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
