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Evidence for molecular structural variations in the cytoarchitectures of a Jurassic plant
Qu, Yuangao1,2; McLoughlin, Nicola3,4; van Zuilen, Mark A.5; Whitehouse, Martin2; Engdahl, Anders6; Vajda, Vivi2
2019-04-01
Source PublicationGEOLOGY
ISSN0091-7613
Volume47Issue:4Pages:325-329
Abstract

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.

DOI10.1130/G45725.1
Indexed BySCI
Funding OrganizationNational 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)
Language英语
Funding ProjectNational 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 KeywordCarbonaceous Biosignatures ; Fossilized Nuclei ; Isotopes ; Origin
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000461609100011
PublisherGEOLOGICAL SOC AMER, INC
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/6603
Collection深海科学研究部_地外海洋系统研究室
Corresponding AuthorQu, Yuangao; Vajda, Vivi
Affiliation1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
2.Swedish Museum Nat Hist, S-11418 Stockholm, Sweden
3.Rhodes Univ, Dept Geol, ZA-6139 Grahamstown, South Africa
4.Albany Museum, ZA-6139 Grahamstown, South Africa
5.Univ Paris Diderot, Inst Phys Globe Paris, CNRS, Sorbonne Paris Cite,Equipe Geomicrobiol,UMR 7154, F-75013 Paris, France
6.Lund Univ, MAX Lab 4, SE-22100 Lund, Sweden
First Author AffilicationInstitute of Deep-sea Science and Engineering,CAS
Corresponding Author AffilicationInstitute of Deep-sea Science and Engineering,CAS
Recommended Citation
GB/T 7714
Qu, Yuangao,McLoughlin, Nicola,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 Qu, Yuangao,McLoughlin, Nicola,van Zuilen, Mark A.,Whitehouse, Martin,Engdahl, Anders,&Vajda, Vivi.(2019).Evidence for molecular structural variations in the cytoarchitectures of a Jurassic plant.GEOLOGY,47(4),325-329.
MLA Qu, Yuangao,et al."Evidence for molecular structural variations in the cytoarchitectures of a Jurassic plant".GEOLOGY 47.4(2019):325-329.
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