干旱区生态环境知识资源中心(Arid): Microbial diversity of an Antarctic subglacial community and high-resolution replicate sampling inform hydrological connectivity in a polar desert

Arid

DOI	10.1111/1462-2920.14607
	Microbial diversity of an Antarctic subglacial community and high-resolution replicate sampling inform hydrological connectivity in a polar desert
	Campen, Richard 1; Kowalski, Julia 2; Lyons, W. Berry 3; Tulaczyk, Slawek 4; Dachwald, Bernd 5; Pettit, Erin 6; Welch, Kathleen A.3; Mikucki, Jill A.1
通讯作者	Mikucki, Jill A.
来源期刊	ENVIRONMENTAL MICROBIOLOGY
ISSN	1462-2912
EISSN	1462-2920
出版年	2019
卷号	21 期号:7 页码:2290-2306
英文摘要	Antarctic subglacial environments host microbial ecosystems and are proving to be geochemically and biologically diverse. The Taylor Glacier, Antarctica, periodically expels iron-rich brine through a conduit sourced from a deep subglacial aquifer, creating a dramatic red surface feature known as Blood Falls. We used Illumina MiSeq sequencing to describe the core microbiome of this subglacial brine and identified previously undetected but abundant groups including the candidate bacterial phylum Atribacteria and archaeal phylum Pacearchaeota. Our work represents the first microbial characterization of samples collected from within a glacier using a melt probe, and the only Antarctic subglacial aquatic environment that, to date, has been sampled twice. A comparative analysis showed the brine community to be stable at the operational taxonomic unit level of 99% identity over a decade. Higher resolution sequencing enabled deconvolution of the microbiome of subglacial brine from mixtures of materials collected at the glacier surface. Diversity patterns between this brine and samples from the surrounding landscape provide insight into the hydrological connectivity of subglacial fluids to the surface polar desert environment. Understanding subice brines collected on the surfaces of thick ice covers has implications for analyses of expelled materials that may be sampled on icy extraterrestrial worlds.
类型	Article
语种	英语
国家	USA ; Germany
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000474294900007
WOS关键词	MCMURDO DRY VALLEYS ; SP-NOV. ; TAYLOR GLACIER ; GEN.-NOV. ; BLOOD FALLS ; FAMILY FLAVOBACTERIACEAE ; LAKE VOSTOK ; ICE ; BACTERIA ; MEMBER
WOS类目	Microbiology
WOS研究方向	Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215454
作者单位	1.Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA; 2.Rhein Westfal TH Aachen, Aachen, Germany; 3.Ohio State Univ, Columbus, OH 43210 USA; 4.Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA; 5.FH Aachen Univ Appl Sci, Fac Aerosp Engn, Aachen, Germany; 6.Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA
推荐引用方式 GB/T 7714	Campen, Richard,Kowalski, Julia,Lyons, W. Berry,et al. Microbial diversity of an Antarctic subglacial community and high-resolution replicate sampling inform hydrological connectivity in a polar desert[J],2019,21(7):2290-2306.
APA	Campen, Richard.,Kowalski, Julia.,Lyons, W. Berry.,Tulaczyk, Slawek.,Dachwald, Bernd.,...&Mikucki, Jill A..(2019).Microbial diversity of an Antarctic subglacial community and high-resolution replicate sampling inform hydrological connectivity in a polar desert.ENVIRONMENTAL MICROBIOLOGY,21(7),2290-2306.
MLA	Campen, Richard,et al."Microbial diversity of an Antarctic subglacial community and high-resolution replicate sampling inform hydrological connectivity in a polar desert".ENVIRONMENTAL MICROBIOLOGY 21.7(2019):2290-2306.