Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
Source and implication of fatty acids in surface sediments from the Pearl River Mouth Basin, South China Sea | |
Mao, Shengyi1; Zhu, Xiaowei2; Sun, Yongge3; Guan, Hongxiang1; Wu, Daidai1; Wu, Nengyou1 | |
2015-10-01 | |
发表期刊 | INDIAN JOURNAL OF GEO-MARINE SCIENCES |
卷号 | 44期号:10页码:1528-1539 |
摘要 | Present study consists the fatty acid composition of five samples of Site 4B surface sediment from the Pearl River Mouth Basin in the South China Sea. Total fatty acid (TFA) content of the ranged from 5.14 mu g/g to 8.99 mu g/g (mu g FA/g dry sediment), and the carbon number ranged from C-12 to C-32. The fatty acids detected in the five surface samples include the normal saturated fatty acids, branched-chain fatty acids, monounsaturated fatty acids, polyunsaturated fatty acids, and isoprenoid acids. Short-chain fatty acids in the normal saturated fatty acids were mainly from the marine microorganisms, whereas the long-chain fatty acids were from terrigenous higher plants. The higher concentration of short-chain fatty acids relative to the long-chain fatty acids indicates that the input from marine microorganisms in the surface sediment is far greater than that from terrigenous higher plants. The branched-chain fatty acids i/a15:0, i/a17:0, and 1 Ome16:0 and the monounsaturated fatty acids 18:1(09 and 16:10)9 were mainly synthesized by sulfate-reducing bacteria, whereas 16:1 omega 7 was from the sulfur-oxidizing bacteria. Relative content of the different fatty acids indicate that the surface sediment is dominated by a reductive environment. In addition, eight isoprenoid acids including phytanic acid, 17 beta(H),21 beta(H)-32-bi-homohopanoic acid, and pristane acid were detected in the surface sediment, and they mainly originated from chlorophyll a and bacteria. |
文章类型 | Article |
关键词 | Fatty Acids Carbon Isotopic South China Sea Pearl River Mouth Basin |
WOS标题词 | Science & Technology ; Physical Sciences |
研究领域[WOS] | Oceanography |
关键词[WOS] | SULFATE-REDUCING BACTERIA ; GULF-OF-MEXICO ; ORGANIC-MATTER ; LIPID BIOMARKERS ; MARINE-SEDIMENTS ; NORTH PACIFIC ; MICROBIAL COMMUNITIES ; HYDROTHERMAL VENTS ; CONTINENTAL-SLOPE ; WESTERN PACIFIC |
收录类别 | SCI |
语种 | 英语 |
项目资助者 | Guangzhou Marine Geological Survey ; Major State Basic Research Development Program(2009CB219506) ; NSFC(U0933004 ; State Key Laboratory of Organic Geochemistry Open Fund(OGL-201209) ; 41303067 ; 41103043) |
WOS类目 | Oceanography |
WOS记录号 | WOS:000379451200008 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.giec.ac.cn/handle/344007/11799 |
专题 | 中国科学院广州能源研究所 |
作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Key Lab Marginal Sea Geol, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China 3.Zhejiang Univ, Dept Geosci, Hangzhou 310037, Zhejiang, Peoples R China |
推荐引用方式 GB/T 7714 | Mao, Shengyi,Zhu, Xiaowei,Sun, Yongge,et al. Source and implication of fatty acids in surface sediments from the Pearl River Mouth Basin, South China Sea[J]. INDIAN JOURNAL OF GEO-MARINE SCIENCES,2015,44(10):1528-1539. |
APA | Mao, Shengyi,Zhu, Xiaowei,Sun, Yongge,Guan, Hongxiang,Wu, Daidai,&Wu, Nengyou.(2015).Source and implication of fatty acids in surface sediments from the Pearl River Mouth Basin, South China Sea.INDIAN JOURNAL OF GEO-MARINE SCIENCES,44(10),1528-1539. |
MLA | Mao, Shengyi,et al."Source and implication of fatty acids in surface sediments from the Pearl River Mouth Basin, South China Sea".INDIAN JOURNAL OF GEO-MARINE SCIENCES 44.10(2015):1528-1539. |
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