Distribution of selenium and arsenic in differentiated multicellular eukaryotic fossils and their significance
文献类型：期刊论文
| 作者 | Jie Long2; Shixi Zhang2; Kunli Luo2 |
| 刊名 | Geoscience Frontiers
 |
| 出版日期 | 2020 |
| 卷号 | 11期号:3页码:821 |
| 关键词 | Geology QE1-996.5 |
| ISSN号 | 1674-9871 |
| 英文摘要 | We present variation patterns of trace elements within different sequences of the Ediacaran Doushantuo Formation (DST, 635–551 million years ago), and inside the cells of the earliest differentiated multicellular eukaryotic fossils of the Weng’an biota in the Weng’an County of Guizhou Province. The results showed that selenium is the most enriched and significantly varied trace element among the 22 trace elements throughout the DST, followed by arsenic. The highest selenium and arsenic content sequences are consistent with the first appeared sequence of the earliest differentiated multicellular eukaryotic fossils Megasphaera at the middle to upper parts of the DST. Nanoman secondary ion mass spectrometry analyses show that selenium and arsenic have an inhomogeneous and punctate distribution in the nucleus and cytoplasm. The nucleus has anomalously enriched levels of selenium and arsenic among the organelles. The selenium and arsenic concentrations exhibit a positive correlation with the diversity of fossilized Megasphaera. These new findings give us a clue that the anomalous enrichment of selenium and arsenic might contributes to the cell differentiation in Ediacaran Doushantuo period. Keywords: Trace elements enrichment, Weng’an biota, Ediacaran, Megasphaera, Cell differentiation |
| 资助项目 | [National Natural Science Foundation of China] |
| 语种 | 英语 |
| WOS记录号 | WOS:000530750200008 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/155345]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 作者单位 | 1. 2.中国科学院地理科学与资源研究所 3.中国科学院大学 |
| 推荐引用方式 GB/T 7714 | Jie Long,Shixi Zhang,Kunli Luo. Distribution of selenium and arsenic in differentiated multicellular eukaryotic fossils and their significance[J]. Geoscience Frontiers,2020,11(3):821. |
| APA | Jie Long,Shixi Zhang,&Kunli Luo.(2020).Distribution of selenium and arsenic in differentiated multicellular eukaryotic fossils and their significance.Geoscience Frontiers,11(3),821. |
| MLA | Jie Long,et al."Distribution of selenium and arsenic in differentiated multicellular eukaryotic fossils and their significance".Geoscience Frontiers 11.3(2020):821. |
入库方式： OAI收割
来源：地理科学与资源研究所
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