气候变化领域集成服务门户(CCPortal): The Great Oxygenation Event as a consequence of ecological dynamics modulated by planetary change

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DOI	10.1038/s41467-021-23286-7
	The Great Oxygenation Event as a consequence of ecological dynamics modulated by planetary change
	Olejarz J.; Iwasa Y.; Knoll A.H.; Nowak M.A.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The Great Oxygenation Event (GOE), ca. 2.4 billion years ago, transformed life and environments on Earth. Its causes, however, are debated. We mathematically analyze the GOE in terms of ecological dynamics coupled with a changing Earth. Anoxygenic photosynthetic bacteria initially dominate over cyanobacteria, but their success depends on the availability of suitable electron donors that are vulnerable to oxidation. The GOE is triggered when the difference between the influxes of relevant reductants and phosphate falls below a critical value that is an increasing function of the reproductive rate of cyanobacteria. The transition can be either gradual and reversible or sudden and irreversible, depending on sources and sinks of oxygen. Increasing sources and decreasing sinks of oxygen can also trigger the GOE, but this possibility depends strongly on migration of cyanobacteria from privileged sites. Our model links ecological dynamics to planetary change, with geophysical evolution determining the relevant time scales. © 2021, The Author(s).
语种	英语
scopus关键词	ferrous ion; organic carbon; oxygen; phosphate; cyanobacterium; ecological approach; electron; oxidation; oxygenation; phosphate; planetary evolution; Article; astronomy; bioavailability; climate change; critical value; cyanobacterium; ecology; electron; geochemistry; great oxygenation event; mathematical analysis; migration; molecular dynamics; nonhuman; oxidation kinetics; oxygen consumption; oxygenation; photoautotroph; photosynthesis; phototrophic bacterium; atmosphere; metabolism; oxidation reduction reaction; Cyanobacteria; Photobacteria; Atmosphere; Cyanobacteria; Earth, Planet; Evolution, Planetary; Oxidation-Reduction
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251393
作者单位	Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, United States; Department of Bioscience, School of Science and Technology, Kwansei Gakuin University, Sanda-shi, Hyogo, Japan; Department of Mathematics, Harvard University, Cambridge, MA, United States
推荐引用方式 GB/T 7714	Olejarz J.,Iwasa Y.,Knoll A.H.,et al. The Great Oxygenation Event as a consequence of ecological dynamics modulated by planetary change[J],2021,12(1).
APA	Olejarz J.,Iwasa Y.,Knoll A.H.,&Nowak M.A..(2021).The Great Oxygenation Event as a consequence of ecological dynamics modulated by planetary change.Nature Communications,12(1).
MLA	Olejarz J.,et al."The Great Oxygenation Event as a consequence of ecological dynamics modulated by planetary change".Nature Communications 12.1(2021).