Search Results - "Spear, John R."

The deep, hot biosphere: Twenty-five years of retrospection by Colman, Daniel R., Poudel, Saroj, Stamps, Blake W., Boyd, Eric S., Spear, John R.

“…Twenty-five years ago this month, Thomas Gold published a seminal manuscript suggesting the presence of a “deep, hot biosphere” in the Earth’s crust. Since…”
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Factors Influencing Bacterial Diversity and Community Composition in Municipal Drinking Waters in the Ohio River Basin, USA by Stanish, Lee F, Hull, Natalie M, Robertson, Charles E, Harris, J Kirk, Stevens, Mark J, Spear, John R, Pace, Norman R

“…The composition and metabolic activities of microbes in drinking water distribution systems can affect water quality and distribution system integrity. In…”
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Influence of sulfate reducing bacterial biofilm on corrosion behavior of low-alloy, high-strength steel (API-5L X80) by AlAbbas, Faisal M., Williamson, Charles, Bhola, Shaily M., Spear, John R., Olson, David L., Mishra, Brajendra, Kakpovbia, Anthony E.

“…The utilization of high strength carbon steels in oil and gas transportation systems has recently increased. This work investigates microbiologically…”
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Phylogenetic stratigraphy in the Guerrero Negro hypersaline microbial mat by Kirk Harris, J, Gregory Caporaso, J, Walker, Jeffrey J, Spear, John R, Gold, Nicholas J, Robertson, Charles E, Hugenholtz, Philip, Goodrich, Julia, McDonald, Daniel, Knights, Dan, Marshall, Paul, Tufo, Henry, Knight, Rob, Pace, Norman R

“…The microbial mats of Guerrero Negro (GN), Baja California Sur, Mexico historically were considered a simple environment, dominated by cyanobacteria and…”
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Physiological adaptations to serpentinization in the Samail Ophiolite, Oman by Fones, Elizabeth M., Colman, Daniel R., Kraus, Emily A., Nothaft, Daniel B., Poudel, Saroj, Rempfert, Kaitlin R., Spear, John R., Templeton, Alexis S., Boyd, Eric S.

“…Hydration of ultramafic rock during the geologic process of serpentinization can generate reduced substrates that microorganisms may use to fuel their carbon…”
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Molecular Evidence for an Active Microbial Methane Cycle in Subsurface Serpentinite-Hosted Groundwaters in the Samail Ophiolite, Oman by Kraus, Emily A, Nothaft, Daniel, Stamps, Blake W, Rempfert, Kaitlin R, Ellison, Eric T, Matter, Juerg M, Templeton, Alexis S, Boyd, Eric S, Spear, John R

“…Serpentinization can generate highly reduced fluids replete with hydrogen (H ) and methane (CH ), potent reductants capable of driving microbial methanogenesis…”
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Disturbance and temporal partitioning of the activated sludge metacommunity by Vuono, David C, Benecke, Jan, Henkel, Jochen, Navidi, William C, Cath, Tzahi Y, Munakata-Marr, Junko, Spear, John R, Drewes, Jörg E

“…The resilience of microbial communities to press disturbances and whether ecosystem function is governed by microbial composition or by the environment have…”
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Metapangenomic investigation provides insight into niche differentiation of methanogenic populations from the subsurface serpentinizing environment, Samail Ophiolite, Oman by Thieringer, Patrick H, Boyd, Eric S, Templeton, Alexis S, Spear, John R

“…Serpentinization reactions produce highly reduced waters that have hyperalkaline pH and that can have high concentrations of H and CH . Putatively autotrophic…”
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Deciphering Biosignatures in Planetary Contexts by Chan, Marjorie A, Hinman, Nancy W, Potter-McIntyre, Sally L, Schubert, Keith E, Gillams, Richard J, Awramik, Stanley M, Boston, Penelope J, Bower, Dina M, Des Marais, David J, Farmer, Jack D, Jia, Tony Z, King, Penelope L, Hazen, Robert M, Léveillé, Richard J, Papineau, Dominic, Rempfert, Kaitlin R, Sánchez-Román, Mónica, Spear, John R, Southam, Gordon, Stern, Jennifer C, Cleaves, Henderson James

“…Microbial life permeates Earth's critical zone and has likely inhabited nearly all our planet's surface and near subsurface since before the beginning of the…”
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Genomic Analysis of the Yet-Uncultured Binatota Reveals Broad Methylotrophic, Alkane-Degradation, and Pigment Production Capacities by Murphy, Chelsea L, Sheremet, Andriy, Dunfield, Peter F, Spear, John R, Stepanauskas, Ramunas, Woyke, Tanja, Elshahed, Mostafa S, Youssef, Noha H

“…The recent leveraging of genome-resolved metagenomics has generated an enormous number of genomes from novel uncultured microbial lineages yet left many clades…”
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Characterization of the Microbiome at the World's Largest Potable Water Reuse Facility by Stamps, Blake W, Leddy, Menu B, Plumlee, Megan H, Hasan, Nur A, Colwell, Rita R, Spear, John R

“…Conventional water resources are not sufficient in many regions to meet the needs of growing populations. Due to cyclical weather cycles, drought, and climate…”
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Ancestral Absence of Electron Transport Chains in Patescibacteria and DPANN by Beam, Jacob P, Becraft, Eric D, Brown, Julia M, Schulz, Frederik, Jarett, Jessica K, Bezuidt, Oliver, Poulton, Nicole J, Clark, Kayla, Dunfield, Peter F, Ravin, Nikolai V, Spear, John R, Hedlund, Brian P, Kormas, Konstantinos A, Sievert, Stefan M, Elshahed, Mostafa S, Barton, Hazel A, Stott, Matthew B, Eisen, Jonathan A, Moser, Duane P, Onstott, Tullis C, Woyke, Tanja, Stepanauskas, Ramunas

“…Recent discoveries suggest that the candidate superphyla Patescibacteria and DPANN constitute a large fraction of the phylogenetic diversity of Bacteria and…”
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Spatial and temporal dynamics at an actively silicifying hydrothermal system by Rasmussen, Kalen L, Stamps, Blake W, Vanzin, Gary F, Ulrich, Shannon M, Spear, John R

“…Steep Cone Geyser is a unique geothermal feature in Yellowstone National Park (YNP), Wyoming, actively gushing silicon-rich fluids along outflow channels…”
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Intact polar lipidome and membrane adaptations of microbial communities inhabiting serpentinite-hosted fluids by Rempfert, Kaitlin R., Kraus, Emily A., Nothaft, Daniel B., Dildar, Nadia, Spear, John R., Sepúlveda, Julio, Templeton, Alexis S.

“…The generation of hydrogen and reduced carbon compounds during serpentinization provides sustained energy for microorganisms on Earth, and possibly on other…”
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Subsurface biogeochemical cycling of nitrogen in the actively serpentinizing Samail Ophiolite, Oman by Rempfert, Kaitlin R, Nothaft, Daniel B, Kraus, Emily A, Asamoto, Ciara K, Evans, R Dave, Spear, John R, Matter, Juerg M, Kopf, Sebastian H, Templeton, Alexis S

“…Nitrogen (N) is an essential element for life. N compounds such as ammonium ( ) may act as electron donors, while nitrate ( ) and nitrite ( ) may serve as…”
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Cyanobacterial construction of hot spring siliceous stromatolites in Yellowstone National Park by Pepe-Ranney, Charles, Berelson, William M., Corsetti, Frank A., Treants, Merika, Spear, John R.

“…Summary Living stromatolites growing in a hot spring in Yellowstone National Park are composed of silica‐encrusted cyanobacterial mats. Two cyanobacterial mat…”
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Unexpected Diversity and Complexity of the Guerrero Negro Hypersaline Microbial Mat by LEY, Ruth E, KIRK HARRIS, J, WILCOX, Joshua, SPEAR, John R, MILLER, Scott R, BEBOUT, Brad M, MARESCA, Julia A, BRYANT, Donald A, SOGIN, Mitchell L, PACE, Norman R

“…Classifications Services AEM Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious Digg Facebook Google+ Mendeley Reddit…”
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An untargeted exometabolomics approach to characterize dissolved organic matter in groundwater of the Samail Ophiolite by Seyler, Lauren M, Kraus, Emily A, McLean, Craig, Spear, John R, Templeton, Alexis S, Schrenk, Matthew O

“…The process of serpentinization supports life on Earth and gives rise to the habitability of other worlds in our Solar System. While numerous studies have…”
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Hydrogen and Bioenergetics in the Yellowstone Geothermal Ecosystem by Spear, John R., Walker, Jeffrey J., McCollom, Thomas M., Pace, Norman R.

“…The geochemical energy budgets for high-temperature microbial ecosystems such as occur at Yellowstone National Park have been unclear. To address the relative…”
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Abundant Atribacteria in deep marine sediment from the Adélie Basin, Antarctica by Carr, Stephanie A, Orcutt, Beth N, Mandernack, Kevin W, Spear, John R

“…Bacteria belonging to the newly classified candidate phylum "Atribacteria" (formerly referred to as "OP9" and "JS1") are common in anoxic methane-rich…”
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