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

doi:10.1360/03yg0561

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	Carbon isotopic studies of individual lipids in organisms from the Nansha sea area, China
	Duan, Y ; Song, JM; Zhang, H
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2004-07-01
卷号	47 期号:7 页码:593-598
关键词	Marine Organisms Individual Lipids Carbon Isotopic Compositions Genetic Relationships
ISSN号	1006-9313
DOI	10.1360/03yg0561
文献子类	Article
英文摘要	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.
学科主题	Geosciences, Multidisciplinary
URL标识	查看原文
语种	英语
WOS记录号	WOS:000223570200003
公开日期	2010-12-22
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/2727]
专题	海洋研究所_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.