Search Results - "Priscu, John C"

Modular community structure suggests metabolic plasticity during the transition to polar night in ice-covered Antarctic lakes by Vick-Majors, Trista J, Priscu, John C, A Amaral-Zettler, Linda

“…High-latitude environments, such as the Antarctic McMurdo Dry Valley lakes, are subject to seasonally segregated light–dark cycles, which have important…”
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Early diverging lineages within Cryptomycota and Chytridiomycota dominate the fungal communities in ice-covered lakes of the McMurdo Dry Valleys, Antarctica by Rojas-Jimenez, Keilor, Wurzbacher, Christian, Bourne, Elizabeth Charlotte, Chiuchiolo, Amy, Priscu, John C., Grossart, Hans-Peter

“…Antarctic ice-covered lakes are exceptional sites for studying the ecology of aquatic fungi under conditions of minimal human disturbance. In this study, we…”
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Enhanced trace element mobilization by Earth’s ice sheets by Hawkings, Jon R., Skidmore, Mark L., Wadham, Jemma L., Priscu, John C., Morton, Peter L., Hatton, Jade E., Gardner, Christopher B., Kohler, Tyler J., Stibal, Marek, Bagshaw, Elizabeth A., Steigmeyer, August, Barkerk, Joel, Dore, John E., Lyons, W. Berry, Tranter, Martyn, Spencer, Robert G. M.

“…Trace elements sustain biological productivity, yet the significance of trace element mobilization and export in subglacial runoff from ice sheets is poorly…”
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A microbial ecosystem beneath the West Antarctic ice sheet by Christner, Brent C., Priscu, John C., Achberger, Amanda M., Barbante, Carlo, Carter, Sasha P., Christianson, Knut, Michaud, Alexander B., Mikucki, Jill A., Mitchell, Andrew C., Skidmore, Mark L., Vick-Majors, Trista J.

“…There has been active debate over microbial life in Antarctic subglacial lakes owing to a paucity of direct observations from beneath the ice sheet and…”
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Biogeochemical Connectivity Between Freshwater Ecosystems beneath the West Antarctic Ice Sheet and the Sub‐Ice Marine Environment by Vick‐Majors, Trista J., Michaud, Alexander B., Skidmore, Mark L., Turetta, Clara, Barbante, Carlo, Christner, Brent C., Dore, John E., Christianson, Knut, Mitchell, Andrew C., Achberger, Amanda M., Mikucki, Jill A., Priscu, John C.

“…Although subglacial aquatic environments are widespread beneath the Antarctic ice sheet, subglacial biogeochemistry is not well understood, and the…”
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Bacterial Diversity Associated with Blood Falls, a Subglacial Outflow from the Taylor Glacier, Antarctica by Mikucki, Jill A, Priscu, John C

“…Blood Falls is the surface manifestation of brine released from below the Taylor Glacier, McMurdo Dry Valleys, Antarctica. Geochemical analyses of Blood Falls…”
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The Impact of a Large-Scale Climate Event on Antarctic Ecosystem Processes by FOUNTAIN, ANDREW G., SABA, GRACE, ADAMS, BYRON, DORAN, PETER, FRASER, WILLIAM, GOOSEFF, MICHAEL, OBRYK, MACIEJ, PRISCU, JOHN C., STAMMERJOHN, SHARON, VIRGINIA, ROSS A.

“…Extreme climate and weather events, such as a drought, hurricanes, or ice storms, can strongly imprint ecosystem processing and may alter ecosystem structure…”
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Scientific access into Mercer Subglacial Lake: scientific objectives, drilling operations and initial observations by Priscu, John C., Kalin, Jonas, Winans, John, Campbell, Timothy, Siegfried, Matthew R., Skidmore, Mark, Dore, John E., Leventer, Amy, Harwood, David M., Duling, Dennis, Zook, Robert, Burnett, Justin, Gibson, Dar, Krula, Edward, Mironov, Anatoly, McManis, Jim, Roberts, Graham, Rosenheim, Brad E., Christner, Brent C., Kasic, Kathy, Fricker, Helen A., Lyons, W. Berry, Barker, Joel, Bowling, Mark, Collins, Billy, Davis, Christina, Gagnon, Al, Gardner, Christopher, Gustafson, Chloe, Kim, Ok-Sun, Li, Wei, Michaud, Alex, Patterson, Molly O., Tranter, Martyn, Venturelli, Ryan, Vick-Majors, Trista, Elsworth, Cooper

“…The Subglacial Antarctic Lakes Scientific Access (SALSA) Project accessed Mercer Subglacial Lake using environmentally clean hot-water drilling to examine…”
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Microbial life at −13 °C in the brine of an ice-sealed Antarctic lake by Murray, Alison E, Kenig, Fabien, Fritsen, Christian H, McKay, Christopher P, Cawley, Kaelin M, Edwards, Ross, Kuhn, Emanuele, McKnight, Diane M, Ostrom, Nathaniel E, Peng, Vivian, Ponce, Adrian, Priscu, John C, Samarkin, Vladimir, Townsend, Ashley T, Wagh, Protima, Young, Seth A, Yung, Pung To, Doran, Peter T

“…The permanent ice cover of Lake Vida (Antarctica) encapsulates an extreme cryogenic brine ecosystem (−13 °C; salinity, 200). This aphotic ecosystem is anoxic…”
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A Contemporary Microbially Maintained Subglacial Ferrous "Ocean" by Mikucki, Jill A., Pearson, Ann, Johnston, David T., Turchyn, Alexandra V., Farquhar, James, Schrag, Daniel P., Anbar, Ariel D., Priscu, John C., Lee, Peter A.

“…An active microbial assemblage cycles sulfur in a sulfate-rich, ancient marine brine beneath Taylor Glacier, an outlet glacier of the East Antarctic Ice Sheet,…”
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Adaptation and Acclimation of Photosynthetic Microorganisms to Permanently Cold Environments by MORGAN-KISS, Rachael M, PRISCU, John C, POCOCK, Tessa, GUDYNAITE-SAVITCH, Loreta, HUNER, Norman P. A

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Biogeography of cryoconite bacterial communities on glaciers of the Tibetan Plateau by Liu, Yongqin, Vick-Majors, Trista J., Priscu, John C., Yao, Tandong, Kang, Shichang, Liu, Keshao, Cong, Ziyuang, Xiong, Jingbo, Li, Yang

“…Abstract Cryoconite holes, water-filled pockets containing biological and mineralogical deposits that form on glacier surfaces, play important roles in glacier…”
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Prokaryotes in the WAIS Divide ice core reflect source and transport changes between Last Glacial Maximum and the early Holocene by Santibáñez, Pamela A., Maselli, Olivia J., Greenwood, Mark C., Grieman, Mackenzie M., Saltzman, Eric S., McConnell, Joseph R., Priscu, John C.

“…We present the first long‐term, highly resolved prokaryotic cell concentration record obtained from a polar ice core. This record, obtained from the West…”
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Niche specialization of bacteria in permanently ice‐covered lakes of the McMurdo Dry Valleys, Antarctica by Kwon, Miye, Kim, Mincheol, Takacs‐Vesbach, Cristina, Lee, Jaejin, Hong, Soon Gyu, Kim, Sang Jong, Priscu, John C, Kim, Ok‐Sun

“…Summary Perennially ice‐covered lakes in the McMurdo Dry Valleys, Antarctica, are chemically stratified with depth and have distinct biological gradients…”
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Diversity and Expression of RubisCO Genes in a Perennially Ice-Covered Antarctic Lake during the Polar Night Transition by Kong, Weidong, Ream, David C, Priscu, John C, Morgan-Kiss, Rachael M

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Abiotic nitrous oxide emission from the hypersaline Don Juan Pond in Antarctica by Joye, Samantha B, Samarkin, Vladimir A, Madigan, Michael T, Bowles, Marshall W, Casciotti, Karen L, Priscu, John C, McKay, Christopher P

“…Nitrous oxide is a potent atmospheric greenhouse gas that contributes to ozone destruction. Biological processes such as nitrification and denitrification are…”
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Cyanobacterial diversity across landscape units in a polar desert: Taylor Valley, Antarctica by Michaud, Alexander B., Šabacká, Marie, Priscu, John C.

“…Abstract Life in the Taylor Valley, Antarctica, is dominated by microorganisms, with cyanobacteria being key primary producers in the region. Despite their…”
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Metabolic activity and diversity of cryoconites in the Taylor Valley, Antarctica by Foreman, Christine M., Sattler, Birgit, Mikucki, Jill A., Porazinska, Dorota L., Priscu, John C.

“…Metabolic activity and biogeochemical diversity within cryoconites from the Canada, Commonwealth, Howard, and Hughes glaciers in the McMurdo Dry Valleys…”
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Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau by LIU, YONGQIN, PRISCU, JOHN C., YAO, TANDONG, VICK-MAJORS, TRISTA J., MICHAUD, ALEXANDER B., SHENG, LIANG

“…Microorganisms are the most abundant organisms on Earth, and microbial abundance records preserved in ice cores have been connected to records of environmental…”
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Distinct Microbial Assemblage Structure and Archaeal Diversity in Sediments of Arctic Thermokarst Lakes Differing in Methane Sources by Matheus Carnevali, Paula B, Herbold, Craig W, Hand, Kevin P, Priscu, John C, Murray, Alison E

“…Developing a microbial ecological understanding of Arctic thermokarst lake sediments in a geochemical context is an essential first step toward comprehending…”
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