Search Results - "Tolar, Bradley B."

Oxidation of urea‐derived nitrogen by thaumarchaeota‐dominated marine nitrifying communities by Tolar, Bradley B., Wallsgrove, Natalie J., Popp, Brian N., Hollibaugh, James T.

“…Summary Urea nitrogen has been proposed to contribute significantly to nitrification by marine thaumarchaeotes. These inferences are based on distributions of…”
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Single-cell genomics shedding light on marine Thaumarchaeota diversification by Luo, Haiwei, Tolar, Bradley B, Swan, Brandon K, Zhang, Chuanlun L, Stepanauskas, Ramunas, Ann Moran, Mary, Hollibaugh, James T

“…Previous studies based on analysis of amoA , 16S ribosomal RNA or accA gene sequences have established that marine Thaumarchaeota fall into two…”
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Depth-Differentiation and Seasonality of Planktonic Microbial Assemblages in the Monterey Bay Upwelling System by Reji, Linta, Tolar, Bradley B., Chavez, Francisco P., Francis, Christopher A.

“…Coastal upwelling regions are hotspots of biological productivity, supporting diverse communities of microbial life and metabolisms. Monterey Bay (MB), a…”
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Structural insights into bifunctional thaumarchaeal crotonyl-CoA hydratase and 3-hydroxypropionyl-CoA dehydratase from Nitrosopumilus maritimus by Destan, Ebru, Yuksel, Busra, Tolar, Bradley B., Ayan, Esra, Deutsch, Sam, Yoshikuni, Yasuo, Wakatsuki, Soichi, Francis, Christopher A., DeMirci, Hasan

“…The ammonia-oxidizing thaumarchaeal 3-hydroxypropionate/4-hydroxybutyrate (3HP/4HB) cycle is one of the most energy-efficient CO 2 fixation cycles discovered…”
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Crystal structure of the 4-hydroxybutyryl-CoA synthetase (ADP-forming) from nitrosopumilus maritimus by Johnson, Jerome, Tolar, Bradley B., Tosun, Bilge, Yoshikuni, Yasuo, Francis, Christopher A., Wakatsuki, Soichi, DeMirci, Hasan

“…The 3-hydroxypropionate/4-hydroxybutyrate (3HP/4HB) cycle from ammonia-oxidizing Thaumarchaeota is currently considered the most energy-efficient aerobic…”
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Diverse and unconventional methanogens, methanotrophs, and methylotrophs in metagenome-assembled genomes from subsurface sediments of the Slate River floodplain, Crested Butte, CO, USA by Rasmussen, Anna N, Tolar, Bradley B, Bargar, John R, Boye, Kristin, Francis, Christopher A

“…We use metagenome-assembled genomes (MAGs) to understand single-carbon (C1) compound-cycling-particularly methane-cycling-microorganisms in montane riparian…”
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An analysis of thaumarchaeota populations from the northern gulf of Mexico by Tolar, Bradley B, King, Gary M, Hollibaugh, James T

“…We sampled Thaumarchaeota populations in the northern Gulf of Mexico, including shelf waters under the Mississippi River outflow plume that are subject to…”
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Ammonia Oxidation in the Ocean Can Be Inhibited by Nanomolar Concentrations of Hydrogen Peroxide by Tolar, Bradley B., Powers, Leanne C., Miller, William L., Wallsgrove, Natalie J., Popp, Brian N., Hollibaugh, James T.

“…Marine Thaumarchaeota were discovered over 20 years ago and although a few isolates from this group are now available for study, we do not yet understand the…”
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Alkane hydroxylase gene (alkB) phylotype composition and diversity in northern Gulf of Mexico bacterioplankton by Smith, Conor B, Tolar, Bradley B, Hollibaugh, James T, King, Gary M

“…Natural and anthropogenic activities introduce alkanes into marine systems where they are degraded by alkane hydroxylases expressed by phylogenetically diverse…”
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Differential co-occurrence relationships shaping ecotype diversification within Thaumarchaeota populations in the coastal ocean water column by Reji, Linta, Tolar, Bradley B., Smith, Jason M., Chavez, Francisco P., Francis, Christopher A.

“…Ecological factors contributing to depth-related diversification of marine Thaumarchaeota populations remain largely unresolved. To investigate the role of…”
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Export of Organic Carbon from Reduced Fine-Grained Zones Governs Biogeochemical Reactivity in a Simulated Aquifer by Aeppli, Meret, Babey, Tristan, Engel, Maya, Lacroix, Emily M, Tolar, Bradley B, Fendorf, Scott, Bargar, John R, Boye, Kristin

“…Sediment interfaces in alluvial aquifers have a disproportionately large influence on biogeochemical activity and, therefore, on groundwater quality. Previous…”
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Contribution of ammonia oxidation to chemoautotrophy in Antarctic coastal waters by Tolar, Bradley B, Ross, Meredith J, Wallsgrove, Natalie J, Liu, Qian, Aluwihare, Lihini I, Popp, Brian N, Hollibaugh, James T

“…There are few measurements of nitrification in polar regions, yet geochemical evidence suggests that it is significant, and chemoautotrophy supported by…”
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Depth distributions of nitrite reductase (nirK) gene variants reveal spatial dynamics of thaumarchaeal ecotype populations in coastal Monterey Bay by Reji, Linta, Tolar, Bradley B., Smith, Jason M., Chavez, Francisco P., Francis, Christopher A.

“…Summary Ammonia‐oxidizing archaea (AOA) of the phylum Thaumarchaeota are key players in nutrient cycling, yet large gaps remain in our understanding of their…”
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Nutrient transport suggests an evolutionary basis for charged archaeal surface layer proteins by Li, Po-Nan, Herrmann, Jonathan, Tolar, Bradley B., Poitevin, Frédéric, Ramdasi, Rasika, Bargar, John R., Stahl, David A., Jensen, Grant J., Francis, Christopher A., Wakatsuki, Soichi, van den Bedem, Henry

“…Surface layers (S-layers) are two-dimensional, proteinaceous, porous lattices that form the outermost cell envelope component of virtually all archaea and many…”
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Realizing the potential of trait-based aquatic ecology: New tools and collaborative approaches by Kremer, Colin T., Williams, Alicia K., Finiguerra, Michael, Fong, Allison A., Kellerman, Anne, Paver, Sara F., Tolar, Bradley B., Toscano, Benjamin J.

“…Trait-based ecology, which focuses on using the traits of species and individuals to understand ecology (from populations to ecosystems), is becoming an…”
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Transmission Electron Microscopy of Coral Tissue by Papke, Erin, Kennedy, Grace E, Elliott, Elizabeth, Taylor, Alison, Tolar, Bradley B, Ushijima, Blake

“…Coral reefs are invaluable ecosystems that are under threat from various anthropogenic stressors. There has been a recent increase in the diagnostic tools…”
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Light and temperature control the seasonal distribution of thaumarchaeota in the South Atlantic bight by Liu, Qian, Tolar, Bradley B., Ross, Meredith J., Cheek, Jelani B., Sweeney, Corinne M., Wallsgrove, Natalie J., Popp, Brian N., Hollibaugh, James T.

“…Mid-summer peaks in the abundance of Thaumarchaeota and nitrite concentration observed on the Georgia, USA, coast could result from in situ activity or…”
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Seasonal variation in the metratranscriptomes of a Thaumarchaeota population from SE USA coastal waters by Hollibaugh, James T, Gifford, Scott M, Moran, Mary Ann, Ross, Meredith J, Sharma, Shalabh, Tolar, Bradley B

“…We used a combination of metatranscriptomic analyses and quantitative PCR (qPCR) to study seasonal changes in Thaumarchaeota populations from a salt…”
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Concentrations, turnover rates and fluxes of polyamines in coastal waters of the South Atlantic Bight by Liu, Qian, Lu, Xinxin, Tolar, Bradley B, Mou, Xiaozhen, Hollibaugh, James T

“…Polyamines are short-chain aliphatic compounds containing multiple amine groups. They are important components of the cytosol of eukaryotes and are present at…”
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Integrated structural biology and molecular ecology of N‐cycling enzymes from ammonia‐oxidizing archaea by Tolar, Bradley B., Herrmann, Jonathan, Bargar, John R., van den Bedem, Henry, Wakatsuki, Soichi, Francis, Christopher A.

“…Summary Knowledge of the molecular ecology and environmental determinants of ammonia‐oxidizing organisms is critical to understanding and predicting the global…”
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