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Biomarker Compositions of Dinoflagellates and Their Applications for Paleoenvironmental Proxies

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/38469

Title: Biomarker Compositions of Dinoflagellates and Their Applications for Paleoenvironmental Proxies
Authors: Amo, Miki Browse this author
Suzuki, Noriyuki Browse this author
Kawamura, Hiroshi Browse this author
Yamaguchi, Aika Browse this author
Takano, Yoshihito Browse this author
Horiguchi, Takeo Browse this author
Keywords: Autotrophic dinoflagellate
Heterotrophic dinoflagellate
Resting cyst
4α-Methyl sterol
Issue Date: 2008
Publisher: 21st Century COE for Neo-Science of Natural History, Hokkaido University
Citation: Edited by Hisatake Okada, Shunsuke F. Mawatari, Noriyuki Suzuki, Pitambar Gautam. ISBN: 978-4-9903990-0-9
Journal Title: Origin and Evolution of Natural Diversity : Proceedings of the International Symposium, The Origin and Evolution of Natural Diversity, held from 1-5 October 2007 in Sapporo, Japan
Start Page: 223
End Page: 226
Abstract: Four motile cells of autotrophic dinoflagellates, Peridinium umbonatum var. inaequale, Akashiwo sanguinea, Scrippsiella tinctoria, and Prorocentrum micans, commonly contain five major sterols: cholesterol, 4-methylcholestan-3-ol, 4, 24-dimethylcholestan-3-ol, dinosterol and dinostanol. A motile cell of heterotrophic dinoflagellate, Protoperidinium crassipes, contains cholesterol, 4, 24- dimethylcholestan-3-ol, dinosterol, dinostanol and 4-tetramethylcholestan-3-ol as major free sterols. Dinosterol concentration of heterotrophic dinoflagellate is about 4-12 times higher than those of autotrophic species, suggesting that the heterotrophic dinoflagellate is important source of dinosterol in some sediments. 4-Methylcholestan-3-ol and 4-tetramethylcholestan-3-ol occur respectively in autotrophic and heterotrophic dinoflagellates are believed to serve as potential biomarkers in respective types. Resting cyst of P. inaequale contains 4-methylcholestan-3β-ol, 4, 24-dimethyl-5α-cholestan-3β-ol, dinosterol, dinostanol, and unknown C31 sterol as major free sterols. The unknown C31 sterol detected only in resting cyst could have been produced during resting stage. This compound may serve as a potential biomarker for resting cysts of dinoflagellate.
Description: International Symposium, "The Origin and Evolution of Natural Diversity". 1–5 October 2007. Sapporo, Japan.
Conference Name: International Symposium, "The Origin and Evolution of Natural Diversity"
Conference Place: Sapporo
Type: proceedings
URI: http://hdl.handle.net/2115/38469
Appears in Collections:Origin and Evolution of Natural Diversity > Proceedings

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