气候变化领域集成服务门户(CCPortal): Production of hydrogen peroxide in the atmosphere of a Snowball Earth and the origin of oxygenic photosynthesis

CCPortal

DOI	10.1073/pnas.0608839103
	Production of hydrogen peroxide in the atmosphere of a Snowball Earth and the origin of oxygenic photosynthesis
	Liang M.-C.; Hartman H.; Kopp R.E.; Kirschvink J.L.; Yung Y.L.
发表日期	2006
ISSN	0027-8424
起始页码	18896
结束页码	18899
卷号	103 期号:50
英文摘要	During Proterozoic time, Earth experienced two intervals with one or more episodes of low-latitude glaciation, which are probable "Snowball Earth" events. Although the severity of the historical glaciations is debated, theoretical "hard Snowball" conditions are associated with the nearly complete shutdown of the hydrological cycle. We show here that, during such long and severe glacial intervals, a weak hydrological cycle coupled with photochemical reactions involving water vapor would give rise to the sustained production of hydrogen peroxide. The photochemical production of hydrogen peroxide has been proposed previously as the primary mechanism for oxidizing the surface of Mars. During a Snowball, hydrogen peroxide could be stored in the ice; it would then be released directly into the ocean and the atmosphere upon melting and could mediate global oxidation events in the aftermath of the Snowball, such as that recorded in the Fe and Mn oxides of the Kalahari Manganese Field, deposited after the Paleoproterozoic low-latitude Makganyene glaciation. Low levels of peroxides and molecular oxygen generated during Archean and earliest Proterozoic non-Snowball glacial intervals could have driven the evolution of oxygen-mediating and -using enzymes and thereby paved the way for the eventual appearance of oxygenic photosynthesis. © 2006 by The National Academy of Sciences of the USA.
英文关键词	Atmospheric processes; Paleoproterozoic; Photochemistry
语种	英语
scopus关键词	hydrogen peroxide; iron oxide; manganese oxide; oxygen; hydrogen; article; atmosphere; chemical model; glacier; hydrology; oxidation; Paleoproterozoic; photochemistry; photosynthesis; priority journal; water vapor; astronomy; biogenesis; chemistry; ice cover; temperature; Biogenesis; Earth (Planet); Hydrogen; Hydrogen Peroxide; Ice Cover; Models, Chemical; Oxygen; Photosynthesis; Temperature
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159185
作者单位	Liang, M.-C., Division of Geological and Planetary Sciences, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, United States, Research Center for Environmental Changes, Academia Sinica, 128 Academia Road, Nankang, Taipei 115, Taiwan; Hartman, H., Center for Biomedical Engineering, Massachusetts Institute of Technology, 31 Ames Street, Cambridge, MA 02139-4307, United States; Kopp, R.E., Division of Geological and Planetary Sciences, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, United States; Kirschvink, J.L., Division of Geological and Planetary Sciences, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, United States; Yung, Y.L., Division of Geological and Planetary Sciences, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, United States
推荐引用方式 GB/T 7714	Liang M.-C.,Hartman H.,Kopp R.E.,et al. Production of hydrogen peroxide in the atmosphere of a Snowball Earth and the origin of oxygenic photosynthesis[J],2006,103(50).
APA	Liang M.-C.,Hartman H.,Kopp R.E.,Kirschvink J.L.,&Yung Y.L..(2006).Production of hydrogen peroxide in the atmosphere of a Snowball Earth and the origin of oxygenic photosynthesis.Proceedings of the National Academy of Sciences of the United States of America,103(50).
MLA	Liang M.-C.,et al."Production of hydrogen peroxide in the atmosphere of a Snowball Earth and the origin of oxygenic photosynthesis".Proceedings of the National Academy of Sciences of the United States of America 103.50(2006).