Evidence for molecular structural variations in the cytoarchitectures of a Jurassic plant | |
Whitehouse, Martin4; Qu, Yuangao4,5; van Zuilen, Mark A.1; McLoughlin, Nicola2,3; Vajda, Vivi4; Engdahl, Anders6 | |
刊名 | GEOLOGY |
2019-04-01 | |
卷号 | 47期号:4页码:325-329 |
ISSN号 | 0091-7613 |
DOI | 10.1130/G45725.1 |
英文摘要 | In this study, we investigate the molecular structural characteristics of organic remains in various cellular organelles from a 180 Ma Jurassic royal fern belonging to the Osmundaceae family of ferns, and compare their carbon isotopic compositions to a now-living species of royal fern (Osmunda regalis). We discovered molecular structural variations indicated by Raman and infrared spectral parameters obtained from various fossilized cellular organelles. The organic remains preserved in the chromosomes and cell nuclei show marked structural heterogeneities compared to the cell walls during different stages of the cell cycle. The fossil and extant fern have similar delta C-13 values obtained from bulk samples, supporting evolutionary stasis in this plant lineage and an unchanged metabolic pathway of carbon assimilation since the Jurassic. The organic remains in the cellular organelles of the fossil seem to be less heterogeneous than those in the extant fern, likely due to the preferential preservation of certain cellular compounds during fossilization. Taphonomic processes appear to have diminished the subcellular isotopic heterogeneities. Our research sheds light on the functioning of ancient plant cellular organelles during mitosis, provides insights to the taphonomic processes operating at molecular and isotopic levels, and shows the practicability of in situ techniques in studying the evolution and behaviors of ancient cells. |
资助项目 | National Key R&D Program of China[2018YFC0309800] ; Hundred Talent Program C of China[Y810011BRC] ; Swedish Research Council[VR 2015-04264] ; Bergen Research Foundation (Norway) ; European Research Council under the European Union's Horizon 2020 research and innovation program[646894] ; Department of Science and Technology-National Research Foundation Centre for Excellence in Palaeosciences at the University of Witwatersrandthe (South Africa) ; Vetenskapsradet (VR) |
WOS关键词 | Carbonaceous Biosignatures ; Fossilized Nuclei ; Isotopes ; Origin |
WOS研究方向 | Geology |
语种 | 英语 |
出版者 | GEOLOGICAL SOC AMER, INC |
WOS记录号 | WOS:000461609100011 |
资助机构 | National Key R&D Program of China ; Hundred Talent Program C of China ; Swedish Research Council ; Bergen Research Foundation (Norway) ; European Research Council under the European Union's Horizon 2020 research and innovation program ; Department of Science and Technology-National Research Foundation Centre for Excellence in Palaeosciences at the University of Witwatersrandthe (South Africa) ; Vetenskapsradet (VR) |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.idsse.ac.cn/handle/183446/6603] |
专题 | 深海科学研究部_地外海洋系统研究室 |
通讯作者 | Qu, Yuangao; Vajda, Vivi |
作者单位 | 1.Univ Paris Diderot, Inst Phys Globe Paris, CNRS, Sorbonne Paris Cite,Equipe Geomicrobiol,UMR 7154, F-75013 Paris, France 2.Albany Museum, ZA-6139 Grahamstown, South Africa 3.Rhodes Univ, Dept Geol, ZA-6139 Grahamstown, South Africa 4.Swedish Museum Nat Hist, S-11418 Stockholm, Sweden 5.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China 6.Lund Univ, MAX Lab 4, SE-22100 Lund, Sweden |
推荐引用方式 GB/T 7714 | Whitehouse, Martin,Qu, Yuangao,van Zuilen, Mark A.,et al. Evidence for molecular structural variations in the cytoarchitectures of a Jurassic plant[J]. GEOLOGY,2019,47(4):325-329. |
APA | Whitehouse, Martin,Qu, Yuangao,van Zuilen, Mark A.,McLoughlin, Nicola,Vajda, Vivi,&Engdahl, Anders.(2019).Evidence for molecular structural variations in the cytoarchitectures of a Jurassic plant.GEOLOGY,47(4),325-329. |
MLA | Whitehouse, Martin,et al."Evidence for molecular structural variations in the cytoarchitectures of a Jurassic plant".GEOLOGY 47.4(2019):325-329. |
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