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dc.contributor.authorInskeep, William P.
dc.contributor.authorJay, Zackary J.
dc.contributor.authorMacur, Richard E.
dc.contributor.authorClingenpeel, Scott
dc.contributor.authorTenney, A.
dc.contributor.authorLovalvo, D.
dc.contributor.authorBeam, Jacob P.
dc.contributor.authorKozubal, Mark A.
dc.contributor.authorShanks, W. C.
dc.contributor.authorMorgan, L. A.
dc.contributor.authorKan, Jinjun
dc.contributor.authorGorby, Yuri A.
dc.contributor.authorYooseph, Shibu
dc.contributor.authorNealson, Kenneth H.
dc.identifier.citationInskeep WP, Jay ZJ, Macur RE, Clingenpeel S, Tenney A, Lovalvo D, Beam JP, Kozubal MA, Shanks WC, Morgan LA, Kan J, Gorby Y, Yooseph S, Nealson K, ʺGeomicrobiology of sublacustrine thermal vents in Yellowstone Lake: Geochemical controls on microbial community structure and function,ʺ Frontiers in Microbiology 6 (October 26, 2015). doi:10.3389/fmicb.2015.01044.en_US
dc.description.abstractYellowstone Lake (Yellowstone National Park, WY, USA) is a large high-altitude (2200 m), fresh-water lake, which straddles an extensive caldera and is the center of significant geothermal activity. The primary goal of this interdisciplinary study was to evaluate the microbial populations inhabiting thermal vent communities in Yellowstone Lake using 16S rRNA gene and random metagenome sequencing, and to determine how geochemical attributes of vent waters influence the distribution of specific microorganisms and their metabolic potential. Thermal vent waters and associated microbial biomass were sampled during two field seasons (2007-2008) using a remotely operated vehicle (ROV). Sublacustrine thermal vent waters (circa 50-90°C) contained elevated concentrations of numerous constituents associated with geothermal activity including dissolved hydrogen, sulfide, methane and carbon dioxide. Microorganisms associated with sulfur-rich filamentous ʺstreamerʺ communities of Inflated Plain and West Thumb (pH range 5-6) were dominated by bacteria from the Aquificales, but also contained thermophilic archaea from the Crenarchaeota and Euryarchaeota. Novel groups of methanogens and members of the Korarchaeota were observed in vents from West Thumb and Elliot's Crater (pH 5-6). Conversely, metagenome sequence from Mary Bay vent sediments did not yield large assemblies, and contained diverse thermophilic and nonthermophilic bacterial relatives. Analysis of functional genes associated with the major vent populations indicated a direct linkage to high concentrations of carbon dioxide, reduced sulfur (sulfide and/or elemental S), hydrogen and methane in the deep thermal ecosystems. Our observations show that sublacustrine thermal vents in Yellowstone Lake support novel thermophilic communities, which contain microorganisms with functional attributes not found to date in terrestrial geothermal systems of YNP.en_US
dc.description.sponsorshipNational Science Foundation (0654336); Montana Agricultural Experiment Station (911300); Gordon and Betty Moore Foundationen_US
dc.rightsCC BY 4.0en_US
dc.titleGeomicrobiology of sublacustrine thermal vents in Yellowstone Lake: Geochemical controls on microbial community structure and functionen_US
mus.citation.journaltitleFrontiers in Microbiologyen_US
mus.identifier.categoryChemical & Material Sciencesen_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentEnvironmental Engineering.en_US
mus.relation.departmentMicrobiology & Immunology.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US

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