干旱区生态环境知识资源中心(Arid): Mechanism of water extraction from gypsum rock by desert colonizing microorganisms

Arid

DOI	10.1073/pnas.2001613117
	Mechanism of water extraction from gypsum rock by desert colonizing microorganisms
	Huang, Wei 1; Ertekin, Emine 2; Wang, Taifeng 3; Cruz, Luz 3; Dailey, Micah 2; DiRuggiero, Jocelyne 2; Kisailus, David 1,3,4
通讯作者	Kisailus, David
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN	0027-8424
出版年	2020
卷号	117 期号:20 页码:10681-10687
英文摘要	Microorganisms, in the most hyperarid deserts around the world, inhabit the inside of rocks as a survival strategy. Water is essential for life, and the ability of a rock substrate to retain water is essential for its habitability. Here we report the mechanism by which gypsum rocks from the Atacama Desert, Chile, provide water for its colonizing microorganisms. We show that the microorganisms can extract water of crystallization (i.e., structurally ordered) from the rock, inducing a phase transformation from gypsum (CaSO4 center dot 2H(2)O) to anhydrite (CaSO4). To investigate and validate the water extraction and phase transformation mechanisms found in the natural geological environment, we cultivated a cyanobacterium isolate on gypsum rock samples under controlled conditions. We found that the cyanobacteria attached onto high surface energy crystal planes ({011}) of gypsum samples generate a thin biofilm that induced mineral dissolution accompanied by water extraction. This process led to a phase transformation to an anhydrous calcium sulfate, anhydrite, which was formed via reprecipitation and subsequent attachment and alignment of nanocrystals. Results in this work not only shed light on how microorganisms can obtain water under severe xeric conditions but also provide insights into potential life in even more extreme environments, such as Mars, as well as offering strategies for advanced water storage methods.
英文关键词	microorganisms water extraction anhydrite gypsum phase transformation
类型	Article
语种	英语
国家	USA
开放获取类型	Bronze, Green Published
收录类别	SCI-E
WOS记录号	WOS:000535585100017
WOS关键词	CALCIUM-SULFATE SOLUBILITY ; ATACAMA DESERT ; MICROBIAL COLONIZATION ; LIFE ; CRYSTALLIZATION ; SPECTROSCOPY ; MESOCRYSTALS ; MORPHOLOGY ; MINERALS ; SEARCH
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319138
作者单位	1.Univ Calif Riverside, Dept Chem & Environm Engn, Riverside, CA 92521 USA; 2.Johns Hopkins Univ, Dept Biol, Baltimore, MD 21218 USA; 3.Univ Calif Riverside, Mat Sci & Engn Program, Riverside, CA 92521 USA; 4.Univ Calif Irvine, Dept Mat Sci & Engn, Irvine, CA 92697 USA
推荐引用方式 GB/T 7714	Huang, Wei,Ertekin, Emine,Wang, Taifeng,et al. Mechanism of water extraction from gypsum rock by desert colonizing microorganisms[J],2020,117(20):10681-10687.
APA	Huang, Wei.,Ertekin, Emine.,Wang, Taifeng.,Cruz, Luz.,Dailey, Micah.,...&Kisailus, David.(2020).Mechanism of water extraction from gypsum rock by desert colonizing microorganisms.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(20),10681-10687.
MLA	Huang, Wei,et al."Mechanism of water extraction from gypsum rock by desert colonizing microorganisms".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.20(2020):10681-10687.