RRC ID 33945
著者 Nakamura H, Sawada K, Araie H, Suzuki I, Shiraiwa Y.
タイトル n-Nonacosadienes from the marine haptophytes Emiliania huxleyi and Gephyrocapsa oceanica.
ジャーナル Phytochemistry
Abstract The hydrocarbons in cultures of marine haptophytes Emiliania huxleyi NIES837 and Gephyrocapsa oceanica NIES1315 were analyzed, and nonacosadienes and hentriacontadienes were detected as the major compounds in both strains. C29 and C31 monoenes and di-, tri- and tetra-unsaturated C33 alkenes were also detected as minor compounds but not C37 and C38 alkenes. The positions of the double bonds in the C29 and C31 alkenes were determined by mass spectrometry of their dimethyl disulfide (DMDS) adducts. Among the four C29 alkenes identified, the most abundant isomer was 2,20-nonacosadiene, and the other three compounds were 1,20-nonacosadiene, 3,20-nonacosadiene and 9-nonacosene, respectively. Hitherto, 2,20-nonacosadiene and 3,20-nonacosadiene were unknown to be natural products. The double bond at the n-9 (ω9) position in these C29 alkenes is hypothesized to be derived from precursors of unsaturated fatty acids possessing an n-9 double bond, such as (9Z)-9-octadecenoic acid. Nonacosadienes have the potential for being used as distinct haptophyte biomarkers.
巻・号 111
ページ 107-13
公開日 2015-3-1
DOI 10.1016/j.phytochem.2014.12.023
PII S0031-9422(14)00555-X
PMID 25595675
MeSH Alkadienes / chemistry Alkadienes / isolation & purification* Gas Chromatography-Mass Spectrometry Haptophyta / chemistry* Marine Biology Molecular Structure Oleic Acid / chemistry Oleic Acids Stereoisomerism
IF 3.044
引用数 1
WOS 分野 PLANT SCIENCES BIOCHEMISTRY & MOLECULAR BIOLOGY
リソース情報
藻類 NIES-837 NIES-1315