Occurrence of gorgosterol in diatoms of the genus Delphineis

Journal article (2009)

Authors

Sebastiaan W. Rampen NIOZ Royal Netherlands Institute for Sea Research
John K. Volkman CSIRO Marine and Atmospheric Research
Sung Bum Hur Pukyong National University
B.A. Abbas NIOZ Royal Netherlands Institute for Sea Research
Stefan Schouten NIOZ Royal Netherlands Institute for Sea Research
Ian D. Jameson CSIRO Marine and Atmospheric Research
Daniel G. Holdsworth CSIRO Marine and Atmospheric Research
Jean Hee Bae Pukyong National University
Jaap S. Sinninghe Damsté NIOZ Royal Netherlands Institute for Sea Research
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Published Date

2009-1

Language

English

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Abstract

The presence of the C30 sterol gorgosterol (22,23-methylene-23,24-dimethylcholest-5-en-3ß-ol) and its analogues in some marine and freshwater environments is generally associated with invertebrate animals or dinoflagellates since there have been no reports of them in other microalgal classes. Here we show that two unialgal cultures of different species of the marine diatom Delphineis contain gorgosterol in addition to sterols more commonly found in diatoms. Our findings suggest that some reports of gorgosterol in seawater and marine sediments may well have an origin, at least in part, from diatoms.