Search

Your search keyword '"Feyhl-Buska, Jayme"' showing total 12 results
Start Over Author "Feyhl-Buska, Jayme"
12 results on '"Feyhl-Buska, Jayme"'

3. Potential role for microbial ureolysis in the rapid formation of carbonate tufa mounds

Author

Medina Ferrer, Fernando, primary, Rosen, Michael R., additional, Feyhl‐Buska, Jayme, additional, Russell, Virginia V., additional, Sønderholm, Fredrik, additional, Loyd, Sean, additional, Shapiro, Russell, additional, Stamps, Blake W., additional, Petryshyn, Victoria, additional, Demirel‐Floyd, Cansu, additional, Bailey, Jake V., additional, Johnson, Hope A., additional, Spear, John R., additional, and Corsetti, Frank A., additional

Published
2021
Full Text
View/download PDF

4. Potential role for microbial ureolysis in the rapid formation of carbonate tufa mounds

Author

Medina Ferrer, Fernando, Rosen, Michael R., Feyhl‐buska, Jayme, Russell, Virginia V., Sønderholm, Fredrik, Loyd, Sean, Shapiro, Russell, Stamps, Blake W., Petryshyn, Victoria, Demirel‐floyd, Cansu, Bailey, Jake V., Johnson, Hope A., Spear, John R., Corsetti, Frank A., Medina Ferrer, Fernando, Rosen, Michael R., Feyhl‐buska, Jayme, Russell, Virginia V., Sønderholm, Fredrik, Loyd, Sean, Shapiro, Russell, Stamps, Blake W., Petryshyn, Victoria, Demirel‐floyd, Cansu, Bailey, Jake V., Johnson, Hope A., Spear, John R., and Corsetti, Frank A.

Published
2021

5. On the Past, Present, and Future Role of Biology in NASA’s Exploration of our Solar System

Author

Hand, Kevin, primary, Phillips, Cynthia B., additional, Chyba, Christopher F., additional, Toner, Brandy, additional, Katija, Kakani, additional, Orphan, Victoria, additional, Huber, Julie, additional, Cavanaugh, Colleen M., additional, Carlson, Marian, additional, Christner, Brent, additional, Templeton, Alexis, additional, Seewald, Jeffrey, additional, Hofgartner, Jason D., additional, Amend, Jan P., additional, Orcutt, Beth N., additional, Bartlett, Douglas H., additional, Falkowski, Paul, additional, Anderson, Rika, additional, Spear, John R., additional, Shank, Tim, additional, Fischer, Woodward W., additional, Hazen, Robert M., additional, Hoehler, Tori, additional, D'Hondt, Steven, additional, Pitesky, Jo, additional, Lynch, Kennda, additional, Shock, Everett L., additional, Craft, Kate, additional, Boyd, Eric, additional, House, Christopher H., additional, Reysenbach, Anna-Louise, additional, Glass, Jennifer, additional, Fike, David, additional, Baross, John A., additional, Gogarten, Johann Peter, additional, Kaçar, Betül, additional, El-Naggar, Moh, additional, Murray, Alison E., additional, Dupont, Christopher, additional, Scully, Jennifer, additional, Rothschild, Lynn, additional, Trembath-Reichert, Elizabeth, additional, Klein, Frieder, additional, Cohen, Phoebe A., additional, Gile, Gillian H., additional, Lloyd, Karen, additional, Dekas, Anne, additional, Delaney, John R., additional, Skidmore, Mark, additional, Buongiorno, Joy, additional, Rogers, Karyn, additional, Hofmann, Amy, additional, Brazelton, William J., additional, Anbar, Ariel, additional, Manalang, Dana Ann, additional, Stevenson, Bradley, additional, Neuer, Susanne, additional, Hara, Ellie, additional, Nordheim, Thomas, additional, Shapiro, Russell, additional, Bradley, Alexander S., additional, Mikucki, Jill, additional, Brown, Michael E., additional, Glamoclija, Mihaela, additional, Reyes, Carolina, additional, Sánchez-Román, Mónica, additional, Farmer, Jack D., additional, Giovannelli, Donato, additional, Suel, Gurol, additional, Trumbo, Samantha, additional, Cameron, Marissa, additional, Osburn, Magdalena, additional, Bradley, James Andrew, additional, Garcia-Pichel, Ferran, additional, Steen, Andrew D., additional, Marlow, Jeffrey, additional, Trubl, Gareth, additional, Robinson, Kirtland, additional, Caro, Tristan, additional, Fulfer, Victoria, additional, Parker, Ceth W., additional, Feyhl-Buska, Jayme, additional, and Roussel, Anaïs, additional

Published
2021
Full Text
View/download PDF

6. Potential role for microbial ureolysis in the rapid formation of carbonate tufa mounds.

Author

Medina Ferrer, Fernando, Rosen, Michael R., Feyhl‐Buska, Jayme, Russell, Virginia V., Sønderholm, Fredrik, Loyd, Sean, Shapiro, Russell, Stamps, Blake W., Petryshyn, Victoria, Demirel‐Floyd, Cansu, Bailey, Jake V., Johnson, Hope A., Spear, John R., and Corsetti, Frank A.

Subjects
CALCIUM carbonate, TUFAS, MICROBIAL enzymes, CARBONIC anhydrase, DNA sequencing, CARBONATES
Abstract

Modern carbonate tufa towers in the alkaline (~pH 9.5) Big Soda Lake (BSL), Nevada, exhibit rapid precipitation rates (exceeding 3 cm/year) and host diverse microbial communities. Geochemical indicators reveal that carbonate precipitation is, in part, promoted by the mixing of calcium‐rich groundwater and carbonate‐rich lake water, such that a microbial role for carbonate precipitation is unknown. Here, we characterize the BSL microbial communities and evaluate their potential effects on carbonate precipitation that may influence fast carbonate precipitation rates of the active tufa mounds of BSL. Small subunit rRNA gene surveys indicate a diverse microbial community living endolithically, in interior voids, and on tufa surfaces. Metagenomic DNA sequencing shows that genes associated with metabolisms that are capable of increasing carbonate saturation (e.g., photosynthesis, ureolysis, and bicarbonate transport) are abundant. Enzyme activity assays revealed that urease and carbonic anhydrase, two microbial enzymes that promote carbonate precipitation, are active in situ in BSL tufa biofilms, and urease also increased calcium carbonate precipitation rates in laboratory incubation analyses. We propose that, although BSL tufas form partially as a result of water mixing, tufa‐inhabiting microbiota promote rapid carbonate authigenesis via ureolysis, and potentially via bicarbonate dehydration and CO2 outgassing by carbonic anhydrase. Microbially induced calcium carbonate precipitation in BSL tufas may generate signatures preserved in the carbonate microfabric, such as stromatolitic layers, which could serve as models for developing potential biosignatures on Earth and elsewhere. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

7. Calorimetric determination of microbial activity in low-​energy environments

Author

Amend, Jan, Feyhl-Buska, Jayme, Wu, Fabai, Robador, Alberto, Orphan, Victoria, Finkelstein, Steven, Amend, Jan, Feyhl-Buska, Jayme, Wu, Fabai, Robador, Alberto, Orphan, Victoria, and Finkelstein, Steven

Abstract

Calorimetric measurements of heat flow and total heat prodn. can inform on the energetics of microbial activity. Nanocalorimetry permits such investigations in environments (natural or lab.) where energy supplies are extremely limited and/or very few cells are metabolically active. We will present nanocalorimetry data obtained during incubations of unamended formation fluids from the oceanic crust (∼300 m deep at the Juan de Fuca Ridge flank) and the continental subsurface (∼1500 m deep at the Sanford Underground Research Facility in South Dakota). Enthalpic responses by the resident microbial communities to addn. of org. carbon, inorg. electron donors, and nutrients will also be discussed. We further used nanocalorimetry on lab. expts. with model organisms to det. the energetics assocd. with carbon, electron donor, and nutrient limitations. For example, with a sulfate reducing bacterium, we quantified the significant cost during the metabolic transition from ammonium assimilation to N_2 fixation. In another set of expts., with an evolving population of E. coli mutants that express the GASP (growth advantage in stationary phase) phenotype, we recorded distinct heat events assocd. with the emergence of nascent mutant populations.

Published
2019

Catalog

Books, media, physical & digital resources
See catalog results