干旱区生态环境知识资源中心(Arid): Biological Soil Crusts as Modern Analogues for the Archean Continental Biosphere: Insights from Carbon and Nitrogen Isotopes

Arid

DOI	10.1089/ast.2019.2144
	Biological Soil Crusts as Modern Analogues for the Archean Continental Biosphere: Insights from Carbon and Nitrogen Isotopes
	Thomazo, Christophe 1; Couradeau, Estelle 2; Giraldo-Silva, Anna 3,4; Marin-Carbonne, Johanna 5; Brayard, Arnaud 1; Homann, Martin 6,7; Sansjofre, Pierre 6,8; Lalonde, Stefan, V 6; Garcia-Pichel, Ferran 3,4
通讯作者	Thomazo, Christophe
来源期刊	ASTROBIOLOGY
ISSN	1531-1074
EISSN	1557-8070
出版年	2020-04
英文摘要	Stable isotope signatures of elements related to life such as carbon and nitrogen can be powerful biomarkers that provide key information on the biological origin of organic remains and their paleoenvironments. Marked advances have been achieved in the last decade in our understanding of the coupled evolution of biological carbon and nitrogen cycling and the chemical evolution of the early Earth thanks, in part, to isotopic signatures preserved in fossilized microbial mats and organic matter of marine origin. However, the geologic record of the early continental biosphere, as well as its evolution and biosignatures, is still poorly constrained. Following a recent report of direct fossil evidence of life on land at 3.22 Ga, we compare here the carbon and nitrogen isotopic signals of this continental Archean biosphere with biosignatures of cyanobacteria biological soil crusts (cyanoBSCs) colonizing modern arid environments. We report the first extended delta C-13 and delta N-15 data set from modern cyanoBSCs and show that these modern communities harbor specific isotopic biosignatures that compare well with continental Archean organic remains. We therefore suggest that cyanoBSCs are likely relevant analogues for the earliest continental ecosystems. As such, they can provide key information on the timing, extent, and possibly mechanism of colonization of the early Earth's emergent landmasses.
英文关键词	Isotope biosignature Early life Archean Carbon isotope Nitrogen isotope
类型	Article ; Early Access
语种	英语
国家	France ; USA ; Switzerland ; England
开放获取类型	Green Submitted, Green Accepted
收录类别	SCI-E
WOS记录号	WOS:000526097900001
WOS关键词	MICROBIAL MATS ; MOODIES GROUP ; 3.22 GA ; LIFE ; ULTRAVIOLET ; HISTORY ; OXYGEN ; RISE
WOS类目	Astronomy & Astrophysics ; Biology ; Geosciences, Multidisciplinary
WOS研究方向	Astronomy & Astrophysics ; Life Sciences & Biomedicine - Other Topics ; Geology
来源机构	Arizona State University ; French National Research Institute for Sustainable Development ; University of London
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314107
作者单位	1.Univ Bourgogne Franche Comte, CNRS, UMR6282, Biogeosci, 6 Blvd Gabriel, F-21000 Dijon, France; 2.Lawrence Berkeley Natl Lab, Joint Genome Inst, Walnut Creek, CA USA; 3.Arizona State Univ, Ctr Fundamental & Appl Microbi, Biodesign Inst, Tempe, AZ USA; 4.Arizona State Univ, Sch Life Sci, Tempe, AZ USA; 5.Univ Lausanne, Inst Sci Terre, Lausanne, Switzerland; 6.CNRS, Lab Geosci Ocean, European Inst Marine Studies, UMR6538, Technopole Brest Iroise, Plouzane, France; 7.UCL, Dept Earth Sci, London, England; 8.Sorbonne Univ, Inst Mineral Phys Mat & Cosmochim, MNHN, CNRS,UMR 7590,IRD, Paris, France
推荐引用方式 GB/T 7714	Thomazo, Christophe,Couradeau, Estelle,Giraldo-Silva, Anna,et al. Biological Soil Crusts as Modern Analogues for the Archean Continental Biosphere: Insights from Carbon and Nitrogen Isotopes[J]. Arizona State University, French National Research Institute for Sustainable Development, University of London,2020.
APA	Thomazo, Christophe.,Couradeau, Estelle.,Giraldo-Silva, Anna.,Marin-Carbonne, Johanna.,Brayard, Arnaud.,...&Garcia-Pichel, Ferran.(2020).Biological Soil Crusts as Modern Analogues for the Archean Continental Biosphere: Insights from Carbon and Nitrogen Isotopes.ASTROBIOLOGY.
MLA	Thomazo, Christophe,et al."Biological Soil Crusts as Modern Analogues for the Archean Continental Biosphere: Insights from Carbon and Nitrogen Isotopes".ASTROBIOLOGY (2020).