Photoelectrons from minerals and microbial world: A perspective on life   evolution in the early Earth

doi:10.1016/j.precamres.2013.04.004

CORC > 北京大学 > 地球与空间科学学院

	Photoelectrons from minerals and microbial world: A perspective on life evolution in the early Earth
	Lu, Anhuai ; Li, Yan ; Wang, Xin ; Ding, Hongrui ; Zeng, Cuiping ; Yang, Xiaoxue ; Hao, Ruixia ; Wang, Changqiu ; Santosh, M.
刊名	precambrian research
	2013
关键词	Photoelectron Photocatalysis Semiconducting mineral Solar light Life evolution Early Earth EXTRACELLULAR ELECTRON-TRANSFER VISIBLE-LIGHT METHYL-ORANGE ASCORBIC-ACID HUMIC ACIDS REDUCTION OXIDATION MICROORGANISMS SEMICONDUCTOR NANOWIRES
DOI	10.1016/j.precamres.2013.04.004
英文摘要	Fundamental to the origin and evolution of life are the sources of energy and mechanisms of various energy yielding pathways. Recent investigations revealed that the ternary system of microorganisms, minerals and solar light has played a critical role in the history of life on our planet. Solar energy utilization pathway by nonphototrophic microorganisms mediated by semiconducting mineral photocatalysis provides a new concept to evaluate the origin and evolution of life. Semiconducting minerals are ubiquitous on Earth's surface and widely participate in redox reactions following photoelectron photohole pairs excited by solar light. As photoholes can be easily scavenged by environmental reductive substances and microorganisms possess multiple strategies to utilize extracellular electrons, the highly reductive photoelectrons serve as potential energy source for microbial life. The discovery of this pathway extends our knowledge on the use of solar energy by nonphototrophic microorganisms, and provides important clues to evaluate life on the early Earth. (C) 2013 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000321595200025&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Geosciences, Multidisciplinary; SCI(E); 2; ARTICLE; 401-408; 231
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/155616]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Lu, Anhuai,Li, Yan,Wang, Xin,et al. Photoelectrons from minerals and microbial world: A perspective on life evolution in the early Earth[J]. precambrian research,2013.
APA	Lu, Anhuai.,Li, Yan.,Wang, Xin.,Ding, Hongrui.,Zeng, Cuiping.,...&Santosh, M..(2013).Photoelectrons from minerals and microbial world: A perspective on life evolution in the early Earth.precambrian research.
MLA	Lu, Anhuai,et al."Photoelectrons from minerals and microbial world: A perspective on life evolution in the early Earth".precambrian research (2013).