Abundance and distribution of fatty acids in sediments of the South Mid-Atlantic Ridge
文献类型：期刊论文
| 作者 | Huang Xin1,2; Zeng Zhigang1; Chen Shuai1; Yin Xuebo1; Wang Xiaoyuan1; Ma Yao1,2 ; Yang Baoju1,2; Rong Kunbo1,2; Shu Yunchao1,2; Jiang Tao1,2
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| 刊名 | JOURNAL OF OCEAN UNIVERSITY OF CHINA
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| 出版日期 | 2015-04-01 |
| 卷号 | 14期号:2页码:277-283 |
| 关键词 | South Mid-Atlantic Ridge sediment fatty acids hydrothermal activity microorganism |
| 英文摘要 | Sediment samples obtained from the South Mid-Atlantic Ridge were studies by gas chromatography-mass spectrometer (GC-MS) for the abundance and distributions of total fatty acids (TFAs). Approximately 34 fatty acids were identified, with the chain-lengths ranging from C-12 to C-30. The total concentrations of TFAs (I TFA) pound ranged from 7.15 to 30.09 mu g g(-1) dry sediment, and I TFA pound was weakly correlated with bitumen content (R (2) = 0.69). The I TFA pound of samples around hydrothermal areas were significantly higher than that of samples away from hydrothermal areas, indicating intense primary production and large biomass in the hydrothermal areas, and suggesting a close relationship between hydrothermal activity and I TFA pound of samples. The characteristics of the TFA composition in the present study are rich in monounsaturated fatty acids and lacking in polyunsaturated fatty acids, and the ratios between the concentrations of monounsaturated fatty acids and I TFAs pound in samples close to the hydrothermal areas, are about 0.8, but for samples far from the hydrothermal areas, they are only about 0.5. Several fatty acids (e.g., a/iC15:0 and C16:1 omega 7), which are signature biomarkers for sulfur-metabolizing bacteria, show the same distribution trend as I TFA pound of samples, further highlighting the close relationship between fatty acid content and hydrothermal activity and/or hydrothermal communities. The metabolic activities of hydrothermal communities, especially those of microorganisms, are likely the main source of fatty acids in samples. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000350058900011 |
| 公开日期 | 2015-06-16 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/25393]  |
| 专题 | 海洋研究所_海洋地质与环境重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang Xin,Zeng Zhigang,Chen Shuai,et al. Abundance and distribution of fatty acids in sediments of the South Mid-Atlantic Ridge[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2015,14(2):277-283. |
| APA | Huang Xin.,Zeng Zhigang.,Chen Shuai.,Yin Xuebo.,Wang Xiaoyuan.,...&Jiang Tao.(2015).Abundance and distribution of fatty acids in sediments of the South Mid-Atlantic Ridge.JOURNAL OF OCEAN UNIVERSITY OF CHINA,14(2),277-283. |
| MLA | Huang Xin,et al."Abundance and distribution of fatty acids in sediments of the South Mid-Atlantic Ridge".JOURNAL OF OCEAN UNIVERSITY OF CHINA 14.2(2015):277-283. |
入库方式： OAI收割
来源：海洋研究所
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