globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gbi.12201
Scopus记录号: 2-s2.0-84978869459
论文题名:
Microbialite response to an anthropogenic salinity gradient in Great Salt Lake, Utah
作者: Lindsay M.R.; Anderson C.; Fox N.; Scofield G.; Allen J.; Anderson E.; Bueter L.; Poudel S.; Sutherland K.; Munson-McGee J.H.; Van Nostrand J.D.; Zhou J.; Spear J.R.; Baxter B.K.; Lageson D.R.; Boyd E.S.
刊名: Geobiology
ISSN: 1472-4677
EISSN: 1472-4669
出版年: 2017
卷: 15, 期:1
起始页码: 131
结束页码: 145
语种: 英语
Scopus关键词: abundance ; aragonite ; community composition ; cyanobacterium ; genetic analysis ; human activity ; micrite ; microbialite ; photoautotrophy ; railway construction ; salinity ; water flow ; Great Salt Lake ; United States ; Utah ; Bacillariophyta ; Cyanobacteria ; algal DNA ; carbonic acid derivative ; ribosome DNA ; ribosome RNA ; archaeon ; bacterium ; biota ; chemistry ; classification ; cluster analysis ; DNA sequence ; eukaryote ; genetics ; lake ; microarray analysis ; microbiology ; salinity ; Utah ; Archaea ; Bacteria ; Biota ; Carbonates ; Cluster Analysis ; DNA, Algal ; DNA, Ribosomal ; Eukaryota ; Lakes ; Microarray Analysis ; RNA, Ribosomal ; Salinity ; Sequence Analysis, DNA ; Utah
Scopus学科分类: Earth and Planetary Sciences: General Earth and Planetary Sciences ; Environmental Science: General Environmental Science ; Agricultural and Biological Sciences: Ecology, Evolution, Behavior and Systematic
英文摘要: A railroad causeway across Great Salt Lake, Utah (GSL), has restricted water flow since its construction in 1959, resulting in a more saline North Arm (NA; 24%–31% salinity) and a less saline South Arm (SA; 11%–14% salinity). Here, we characterized microbial carbonates collected from the SA and the NA to evaluate the effect of increased salinity on community composition and abundance and to determine whether the communities present in the NA are still actively precipitating carbonate or if they are remnant features from prior to causeway construction. SSU rRNA gene abundances associated with the NA microbialite were three orders of magnitude lower than those associated with the SA microbialite, indicating that the latter community is more productive. SSU rRNA gene sequencing and functional gene microarray analyses indicated that SA and NA microbialite communities are distinct. In particular, abundant sequences affiliated with photoautotrophic taxa including cyanobacteria and diatoms that may drive carbonate precipitation and thus still actively form microbialites were identified in the SA microbialite; sequences affiliated with photoautotrophic taxa were in low abundance in the NA microbialite. SA and NA microbialites comprise smooth prismatic aragonite crystals. However, the SA microbialite also contained micritic aragonite, which can be formed as a result of biological activity. Collectively, these observations suggest that NA microbialites are likely to be remnant features from prior to causeway construction and indicate a strong decrease in the ability of NA microbialite communities to actively precipitate carbonate minerals. Moreover, the results suggest a role for cyanobacteria and diatoms in carbonate precipitation and microbialite formation in the SA of GSL. © 2016 John Wiley & Sons Ltd
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85076
Appears in Collections:影响、适应和脆弱性

Files in This Item:

There are no files associated with this item.


作者单位: Department of Microbiology and Immunology, Montana State University, Bozeman, MT, United States; Department of Earth Sciences, Montana State University, Bozeman, MT, United States; Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, United States; State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China; Earth Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO, United States; Department of Biology, Westminster College, Salt Lake City, UT, United States; NASA Astrobiology Institute, Mountain View, CA, United States

Recommended Citation:
Lindsay M.R.,Anderson C.,Fox N.,et al. Microbialite response to an anthropogenic salinity gradient in Great Salt Lake, Utah[J]. Geobiology,2017-01-01,15(1)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Lindsay M.R.]'s Articles
[Anderson C.]'s Articles
[Fox N.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Lindsay M.R.]'s Articles
[Anderson C.]'s Articles
[Fox N.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Lindsay M.R.]‘s Articles
[Anderson C.]‘s Articles
[Fox N.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.