气候变化领域集成服务门户(CCPortal): Prebiotic synthesis from CO atmospheres: Implications for the origins of life

CCPortal

DOI	10.1073/pnas.192568299
	Prebiotic synthesis from CO atmospheres: Implications for the origins of life
	Miyakawa S.; Yamanashi H.; Kobayashi K.; Cleaves H.J.; Miller S.L.
发表日期	2002
ISSN	0027-8424
起始页码	14628
结束页码	14631
卷号	99 期号:23
英文摘要	Most models of the primitive atmosphere around the time life originated suggest that the atmosphere was dominated by carbon dioxide, largely based on the notion that the atmosphere was derived via volcanic outgassing, and that those gases were similar to those found in modern volcanic effluent. These models tend to downplay the possibility of a strongly reducing atmosphere, which had been thought to be important for prebiotic synthesis and thus the origin of life. However, there is no definitive geologic evidence for the oxidation state of the early atmosphere and bioorganic compounds are not efficiently synthesized from C02 atmospheres. In the present study, it was shown that a CO-CO2-N2-H2O atmosphere can give a variety of bioorganic compounds with yields comparable to those obtained from a strongly reducing atmosphere. Atmospheres containing carbon monoxide might therefore have been conducive to prebiotic synthesis and perhaps the origin of life. CO-dominant atmospheres could have existed if the production rate of CO from impacts of extraterrestrial materials were high or if the upper mantle had been more reduced than today.
语种	英语
scopus关键词	carbon dioxide; carbon monoxide; nitrogen; organic compound; water; article; atmosphere; biogenesis; geology; meteorology; nonhuman; oxidation reduction reaction; paleontology; priority journal; synthesis; volcano; Air; Biogenesis; Carbon Dioxide; Carbon Monoxide; Evolution, Chemical; Gases; Kinetics; Nitrogen; Thermodynamics
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/159013
作者单位	Miyakawa, S., Department of Chemistry and Biotechnology, Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan, Department of Chemistry, Cogswell Laboratory, Rensselaer Polytechnic Institute, Troy, NY 12180, United States; Yamanashi, H., Department of Chemistry and Biotechnology, Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan; Kobayashi, K., Department of Chemistry and Biotechnology, Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan; Cleaves, H.J., Department of Chemistry and Biochemistry, University of California, San Diego, CA 92093-0506, United States; Miller, S.L., Department of Chemistry and Biochemistry, University of California, San Diego, CA 92093-0506, United States
推荐引用方式 GB/T 7714	Miyakawa S.,Yamanashi H.,Kobayashi K.,et al. Prebiotic synthesis from CO atmospheres: Implications for the origins of life[J],2002,99(23).
APA	Miyakawa S.,Yamanashi H.,Kobayashi K.,Cleaves H.J.,&Miller S.L..(2002).Prebiotic synthesis from CO atmospheres: Implications for the origins of life.Proceedings of the National Academy of Sciences of the United States of America,99(23).
MLA	Miyakawa S.,et al."Prebiotic synthesis from CO atmospheres: Implications for the origins of life".Proceedings of the National Academy of Sciences of the United States of America 99.23(2002).