干旱区生态环境知识资源中心(Arid): Rapid Microbial Dynamics in Response to an Induced Wetting Event in Antarctic Dry Valley Soils

Arid

DOI	10.3389/fmicb.2019.00621
	Rapid Microbial Dynamics in Response to an Induced Wetting Event in Antarctic Dry Valley Soils
	Niederberger, Thomas D.1; Bottos, Eric M.2,3; Sohm, Jill A.4,6; Gunderson, Troy 4; Parker, Alex 5,7; Coyne, Kathryn J.1; Capone, Douglas G.4; Carpenter, Edward J.5; Cary, Stephen Craig 1,2
通讯作者	Cary, Stephen Craig
来源期刊	FRONTIERS IN MICROBIOLOGY
EISSN	1664-302X
出版年	2019
卷号	10
英文摘要	The cold deserts of the McMurdo Dry Valleys (MDV), Antarctica, host a high level of microbial diversity. Microbial composition and biomass in arid vs. ephemerally wetted regions are distinctly different, with wetted communities representing hot spots of microbial activity that are important zones for biogeochemical cycling. While climatic change is likely to cause wetting in areas not historically subject to wetting events, the responses of microorganisms inhabiting arid soils to water addition is unknown. The purpose of this study was to observe how an associated, yet non-wetted microbial community responds to an extended addition of water. Water from a stream was diverted to an adjacent area of arid soil with changes in microbial composition and activities monitored via molecular and biochemical methods over 7 weeks. The frequency of genetic signatures related to both prokaryotic and eukaryotic organisms adapted to MDV aquatic conditions increased during the limited 7 week period, indicating that the soil community was transitioning into a typical high-productivity MDV community. This work is consistent with current predictions that MDV microbial communities in arid regions are highly sensitive to climate change, and further supports the notion that changes in community structure and associated biogeochemical cycling may occur much more rapidly than predicted.
英文关键词	Dry Valleys climate change cyanobacteria DNA fingerprinting wetting
类型	Article
语种	英语
国家	USA ; New Zealand ; Canada
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000463397200001
WOS关键词	GLACIAL MELTWATER STREAM ; TAYLOR VALLEY ; VICTORIA LAND ; COMMUNITY COMPOSITION ; TRANSIENT STORAGE ; ORGANIC RESOURCES ; SALINITY GRADIENT ; HYPORHEIC ZONE ; DIVERSITY ; BACTERIAL
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/2XILL650/215786
作者单位	1.Univ Delaware, Coll Earth Ocean & Environm, Lewes, DE 19958 USA; 2.Univ Waikato, Int Ctr Terr Antarctic Res, Sch Sci, Hamilton, New Zealand; 3.Thompson Rivers Univ, Dept Biol Sci, Kamloops, BC, Canada; 4.Univ Southern Calif, Wrigley Inst Environm Studies, Dept Biol Sci, Los Angeles, CA USA; 5.San Francisco State Univ, Romberg Tiburon Ctr, Tiburon, CA USA; 6.Univ Southern Calif, Environm Studies Program, Los Angeles, CA USA; 7.Calif Maritime Acad, Vallejo, CA USA
推荐引用方式 GB/T 7714	Niederberger, Thomas D.,Bottos, Eric M.,Sohm, Jill A.,et al. Rapid Microbial Dynamics in Response to an Induced Wetting Event in Antarctic Dry Valley Soils[J],2019,10.
APA	Niederberger, Thomas D..,Bottos, Eric M..,Sohm, Jill A..,Gunderson, Troy.,Parker, Alex.,...&Cary, Stephen Craig.(2019).Rapid Microbial Dynamics in Response to an Induced Wetting Event in Antarctic Dry Valley Soils.FRONTIERS IN MICROBIOLOGY,10.
MLA	Niederberger, Thomas D.,et al."Rapid Microbial Dynamics in Response to an Induced Wetting Event in Antarctic Dry Valley Soils".FRONTIERS IN MICROBIOLOGY 10(2019).