Carbon isotopic studies of individual lipids in organisms from the Nansha sea area, China

doi:10.1360/03yg0561

	Carbon isotopic studies of individual lipids in organisms from the Nansha sea area, China
	Duan, Y ; Song, JM; Zhang, H
	2004-07-01
发表期刊	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
ISSN	1006-9313
卷号	47 期号:7 页码:593-598
文章类型	Article
摘要	Carbon isotopes of individual lipids in typical organisms from the Nansha sea area were measured by the GC-IRMS analytical technique. delta(13)C values of saturated fatty acids in different organisms examined are from -25.6parts per thousand to -29.7parts per thousand with the average values ranging from -26.4parts per thousand to -28.2parts per thousand and the variance range of 11.8parts per thousand, between different organisms is also observed. Unsaturated fatty acids have heavy carbon isotopic compositions and the mean differences of 2.9%.9-6.8parts per thousand compared to the same carbon number saturated fatty acids. delta(13)C values of n-alkanes range from -27.5%o to -29.7parts per thousand and their mean values, ranging from -28.6parts per thousand, to -28.9parts per thousand, are very close in different organisms. The mean difference in delta(13)C between the saturated fatty acids and n-alkanes is only 1.5parts per thousand, indicating that they have similar biosynthetic pathways. The carbon isotopic variations between the different carbon-number lipids are mostly within +/-2.0parts per thousand, reflecting that they experienced a biosynthetic process of the carbon chain elongation. At the same time, the carbon isotopic genetic relationships between the biological and sedimentary lipids are established by comparative studies of carbon isotopic compositions of individual lipids in organisms and sediments from the Nansha sea area, which provides scientific basis for carbon isotopic applied research of individual lipids.; Carbon isotopes of individual lipids in typical organisms from the Nansha sea area were measured by the GC-IRMS analytical technique. delta(13)C values of saturated fatty acids in different organisms examined are from -25.6parts per thousand to -29.7parts per thousand with the average values ranging from -26.4parts per thousand to -28.2parts per thousand and the variance range of 11.8parts per thousand, between different organisms is also observed. Unsaturated fatty acids have heavy carbon isotopic compositions and the mean differences of 2.9%.9-6.8parts per thousand compared to the same carbon number saturated fatty acids. delta(13)C values of n-alkanes range from -27.5%o to -29.7parts per thousand and their mean values, ranging from -28.6parts per thousand, to -28.9parts per thousand, are very close in different organisms. The mean difference in delta(13)C between the saturated fatty acids and n-alkanes is only 1.5parts per thousand, indicating that they have similar biosynthetic pathways. The carbon isotopic variations between the different carbon-number lipids are mostly within +/-2.0parts per thousand, reflecting that they experienced a biosynthetic process of the carbon chain elongation. At the same time, the carbon isotopic genetic relationships between the biological and sedimentary lipids are established by comparative studies of carbon isotopic compositions of individual lipids in organisms and sediments from the Nansha sea area, which provides scientific basis for carbon isotopic applied research of individual lipids.
关键词	Marine Organisms Individual Lipids Carbon Isotopic Compositions Genetic Relationships
学科领域	Geosciences, Multidisciplinary
DOI	10.1360/03yg0561
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000223570200003
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/2726
专题	海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, Lanzhou Inst Geol, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Sch Geol, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Duan, Y,Song, JM,Zhang, H. Carbon isotopic studies of individual lipids in organisms from the Nansha sea area, China[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2004,47(7):593-598.
APA	Duan, Y,Song, JM,&Zhang, H.(2004).Carbon isotopic studies of individual lipids in organisms from the Nansha sea area, China.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,47(7),593-598.
MLA	Duan, Y,et al."Carbon isotopic studies of individual lipids in organisms from the Nansha sea area, China".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 47.7(2004):593-598.

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