B075
Microbial Ecology of the Cryosphere

Session ID#: 80655

Session Description:
Microorganisms drive biogeochemical cycles in all ecosystems, but the cryosphere has only relatively recently been recognized as a habitat where microorganisms are active. Sea ice, glaciers, and permafrost are all projected to shrink as climate change continues, and cryosphere thaw is projected to unlock previously unavailable carbon, which will be released into the atmosphere through the action of microbial metabolism. Thus, understanding the role of microorganisms in the cryosphere has become crucial and has broad applications in climate model predictions, human health, and ecosystem services management. Recent methodological advances now allow researchers to differentiate active versus dormant community members and quantify metabolites, significantly improving our understanding of the mechanisms governing cryosphere microbial community assembly and metabolic fluxes. In this session, we explore current research designed to assess the ecological processes governing the structure and function of microbial communities in the changing cryosphere across broad spatial, temporal, and phylogenetic extents.
Index Terms:

0428 Carbon cycling [BIOGEOSCIENCES]
0465 Microbiology: ecology, physiology and genomics [BIOGEOSCIENCES]
0475 Permafrost, cryosphere, and high-latitude processes [BIOGEOSCIENCES]
0716 Cryobiology [CRYOSPHERE]

Primary Convener:  Megan Dillon, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
Conveners:  Neslihan Tas, Lawrence Berkeley National Laboratory, Berkeley, CA, United States and Rachel Mackelprang, California State University Northridge, Northridge, CA, United States
Primary Liaison:  Megan Dillon, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
 
Variations in Snow Albedo Due to Red Algae on the Juneau Icefield (510837)
Elizabeth Hebel1, Emily Wilcox2, Diana Castro3 and Alexia Fabiani3, (1)Juneau Icefield Research Program, Juneau, AK, United States, (2)University of New Hampshire, Earth Systems Research Center, Durham, NH, United States, (3)Juneau Icefield Research Program, Seattle, WA, United States
 
Investigating Drivers of High Latitude Soil Microbial Community Distributions Across an Alaskan Transect (539413)
Keith O'Connor1, Melissa A Berke1, Darci J Rush2, Ellen C Hopmans2, Lori Ziolkowski3 and Floyd Nichols4, (1)University of Notre Dame, Notre Dame, IN, United States, (2)Royal Netherlands Institute for Sea Research, Den Burg, Netherlands, (3)University of South Carolina, Columbia, SC, United States, (4)Northwestern University, Evanston, IL, United States
 
Reconstruction of metagenome-assembled genomes from past and extant microbial populations in ancient Siberian permafrost (545715)
Renxing Liang1, Zhou Li2, Maggie Lau1, Tatiana A Vishnivetskaya3, Karen G Lloyd3, Susan M Pfiffner3, Elizaveta Rivkina4, Wei Wang5, Jessica Wiggins5, Jennifer Miller5, Robert Hettich2 and Tullis C Onstott1, (1)Princeton University, Department of Geosciences, Princeton, NJ, United States, (2)Oak Ridge National Laboratory, Chemical Sciences Division, Oak Ridge, TN, United States, (3)University of Tennessee, Knoxville, TN, United States, (4)Institute of Physicochemical and Biological Problems in Soil Science, Russian Academy of Sciences, Pushchino, Russia, (5)Princeton University, Genomics Core Facility, Princeton, NJ, United States
 
Field in situ Microbial Growth Response to Warming using H218O qSIP in Deglaciated Soils of the Marr Ice Piedmont Glacier, Anvers Island, Antarctica (549460)
Alicia Purcell1, Paul Dijkstra1, Bruce A Hungate1, Kelly McMillen2, Egbert Schwartz1 and Natasja van Gestel2, (1)Northern Arizona University, Department of Biological Sciences and the Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (2)Texas Tech University, Department of Biological Sciences, Lubbock, TX, United States
 
Microbial communities in hydrologically active subglacial lakes of the Siple Coast, West Antarctica (555720)
Christina Davis1, Amanda Achberger2, Brent Christner1, John E Dore3, Trista J Vick-Majors4, Alexander B Michaud5, Wei Li6 and SALSA Science Team, (1)University of Florida, Microbiology and Cell Science, Gainesville, FL, United States, (2)Texas A&M University, Oceanography, College Station, TX, United States, (3)Montana State University, Land Resources and Environmental Sciences, Bozeman, MT, United States, (4)Michigan Technological University, Houghton, MI, United States, (5)Bigelow Laboratory for Ocean Sciences, East Boothbay, ME, United States, (6)Montana State University, Land Resources and Environmental Science, Bozeman, MT, United States
 
Soil Microbial Structure and Function Across Spatiotemporal Scales of Arctic Alaska (558818)
Kaj Lynoe, South Dakota State University, Brookings, SD, United States, A. Joshua Leffler, South Dakota State University, Natural Resource Management, Brookings, SD, United States, Kathy Kelsey, University of Colorado, Boulder, CO, United States and Jeffrey M Welker, University of Alaska Anchorage, Department of Biological Sciences, Anchorage, AK, United States
 
Physiological Ecology of Microbial Communities in Antarctic Subglacial Aquatic Environments (560931)
Trista J Vick-Majors1, Wei Li2, Joel D Barker3, Mark L Skidmore4, John E Dore5, Christina Davis6, Brent Christner6, John C Priscu2 and SALSA Science Team, (1)Michigan Technological University, Houghton, MI, United States, (2)Montana State University, Land Resources and Environmental Science, Bozeman, MT, United States, (3)Ohio State University, Columbus, OH, United States, (4)Montana State Univ, Earth Sciences, Bozeman, MT, United States, (5)Montana State University, Land Resources and Environmental Sciences, Bozeman, MT, United States, (6)University of Florida, Microbiology and Cell Science, Gainesville, FL, United States
 
Nitrogen cycling in perennially ice-covered lakes in Antarctica (561620)
Sydney Olivia Salley1, Dawn Y Sumner2 and Christen Grettenberger1, (1)University of California Davis, Davis, CA, United States, (2)University of California, Davis, Earth and Planetary Sciences, Davis, CA, United States
 
Arctic Permafrost Microbiomes: A Meta-Analysis (581003)
Megan Dillon1, Yaxin Xue2 and Neslihan Tas1, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)Lawrence Berkeley National Laboratory, Climate and Ecosystem Sciences, Berkeley, CA, United States
 
Microbiome Re-assembly After Permafrost Thaw: How Time, Space, History and Disturbance Fundamentally Differentiate Permafrost Microbial Communities (Invited) (583800)
Jessica Gilman Ernakovich1, Rebecca E Hewitt2, Benjamin W Abbott3, Robyn Barbato4, Jiri Barta5, Christina Biasi6, Chris Chabot7, Megan Dillon8, Stacey Jarvis Doherty4,9, Jenni Hultman10, Christian Knoblauch11, Chui Yim Maggie Lau12, Mary-Cathrine Leewis13, Susanne Liebner14, Rachel Mackelprang15, Matt Sullivan16, Tullis C Onstott12, Virginia Isabel Rich17, Andreas Richter18, Christina Schaedel19, Ursel Schuette13, Henri Siljanen20, Neslihan Tas8, Ina Timling21, Tatiana A Vishnivetskaya22, Mark P Waldrop23, Emily Whalen24 and Matthias Winkel25, (1)University of New Hampshire Main Campus, Natural Resources and the Environment, Durham, NH, United States, (2)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (3)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States, (4)U.S. Army Cold Regions Research and Engineering Laboratory, Hanover, NH, United States, (5)University of South Bohemia, Ceske Budejovice, Austria, (6)University of Eastern Finland, Kuopio, Finland, (7)California State University Northridge, Northridge, United States, (8)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (9)University of New Hampshire Main Campus, Molecular, Cellular, and Biomedical Sciences, Durham, NH, United States, (10)University of Helsinki, Helsinki, Finland, (11)University of Hamburg, Hamburg, Germany, (12)Princeton University, Department of Geosciences, Princeton, NJ, United States, (13)University of Alaska Fairbanks, Fairbanks, AK, United States, (14)GFZ German Research Centre for Geosciences, Section Geomicrobiology, Potsdam, Germany, (15)California State University Northridge, Northridge, CA, United States, (16)Department of Natural Resources Ohio, Microbiology, Columbus, OH, United States, (17)Ohio State University, Columbus, OH, United States, (18)University of Vienna, Department of Microbiology and Ecosystem Science, Vienna, Austria, (19)Northern Arizona University, Flagstaff, AZ, United States, (20)University of Eastern Finland, Joensuu, Finland, (21)University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States, (22)University of Tennessee, Knoxville, TN, United States, (23)US Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Menlo Park, CA, United States, (24)University of New Hampshire Main Campus, Durham, United States, (25)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
 
Assembly of microbial communities in thawed permafrost and implications for carbon processing (588332)
Stacey Jarvis Doherty1,2, Robyn Barbato2, Ellen Dorrepaal3, Margareta Johansson4, Sylvain Monteux5, Kathryn A Bennett6, Andrew Ernakovich7, Jessica Mackay7 and Jessica Gilman Ernakovich7, (1)University of New Hampshire Main Campus, Molecular, Cellular, and Biomedical Sciences, Durham, NH, United States, (2)U.S. Army Cold Regions Research and Engineering Laboratory, Hanover, NH, United States, (3)Umeå University, Climate Impacts Research Centre, Ecology and Environmental Science, Umeå, Sweden, (4)Lund University, Lund, Sweden, (5)SLU Swedish University of Agricultural Sciences Uppsala, Department of Soil and Environment, Uppsala, Sweden, (6)University of New Hampshire Main Campus, Earth Sciences, Durham, NH, United States, (7)University of New Hampshire Main Campus, Natural Resources and the Environment, Durham, NH, United States
 
Benthic microbial communities from the McMurdo Dry Valleys provide insights into microbial ecology, life on early earth, and the evolution of oxygenic photosynthesis. (613778)
Christen Grettenberger1, Dawn Y Sumner2, Jessica Mizzi1, Sydney Olivia Salley1, Kate Wall3, Tyler Mackey4, Anne D Jungblut5 and Ian Hawes6, (1)University of California Davis, Davis, CA, United States, (2)University of California, Davis, Earth and Planetary Sciences, Davis, CA, United States, (3)University of California Davis, Davis, United States, (4)Massachusetts Institute of Technology, Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States, (5)The Natural History Museum, Department of Life Sciences, London, United Kingdom, (6)University of Waikato, Hamilton, New Zealand
 
Antarctic ice-covered lakes as windows into ancient microbial ecosystems (Invited) (619949)
Tyler Mackey1, Dawn Y Sumner2, Ian Hawes3, Anne D Jungblut4, Megan Dillon5, Dale T Andersen6, Justin Lawrence7, Sasha Z Leidman7, Frances Rivera-Hernandez8 and Lucy Coleman9, (1)Massachusetts Institute of Technology, Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States, (2)University of California, Davis, Earth and Planetary Sciences, Davis, CA, United States, (3)University of Waikato, Hamilton, New Zealand, (4)The Natural History Museum, Department of Life Sciences, London, United Kingdom, (5)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (6)SETI Institute Mountain View, Mountain View, CA, United States, (7)University of California Davis, Davis, CA, United States, (8)Dartmouth College, Hanover, NH, United States, (9)Twelve Bridges Middle School, Science, Placerville, CA, United States
 
Between States: The Microbial Ecology of Biogeochemical Processes Near the Freezing Point. (620465)
Mark P Waldrop1, Jack W Mcfarland1, Stephanie R. James2, Kristen Manies1, Rebecca Bergquist Neumann3, Burke J Minsley2, Mary-Cathrine Leewis4 and Steven Blazewicz5, (1)Geology, Minerals, Energy, and Geophysics Science Center, Menlo Park, CA, United States, (2)USGS Geology, Geophysics, and Geochemistry Science Center, Denver, CO, United States, (3)University of Washington, Seattle, WA, United States, (4)US Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Menlo Park, CA, United States, (5)Lawrence Livermore National Laboratory, Livermore, CA, United States
 
Biodiversity of Microbial Eukaryotes in Alpine Pink Snow Across Geographically Diverse Mountain Ranges (620570)
Robin B Kodner, Western Washington University, Bellingham, WA, United States, Rachael Mallon, Western Washington University, Biology, Bellingham, United States, Ryan McLaughlin, University of British Columbia, Bioinformatics, Vancouver, BC, Canada, Willmer Sanchez Rodriguez, Instituto Nacional de Investigación en Glaciares y Ecosistemas de Montaña, Ancash, Peru and Phil Novis, Landcare Research NZ, Lincoln, New Zealand
 
Dynamic interactions between methanogenesis and microbial iron reductions drive carbon release from Arctic tundra (626423)
David E Graham1, Jianqiu Zheng2, Megan Dillon3, Neslihan Tas3, Baohua Gu4 and Stan Wullschleger5, (1)Oak Ridge National Laboratory, Biosciences Division, Oak Ridge, TN, United States, (2)Pacific Northwest National Laboratory, Richland, WA, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (4)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States, (5)Oak Ridge National Laboratory, Climate Change Science Institute, Environmental Science Division, Oak Ridge, TN, United States
 
Antarctic Cyanobacteria Phormidium pseudopriestleyi Produces O2 in Sulfidic and Low Light Conditions (628965)
Jessica Mizzi, University of California Davis, Davis, CA, United States, Dawn Y Sumner, University of California, Davis, Earth and Planetary Sciences, Davis, CA, United States and Anne D Jungblut, The Natural History Museum, Department of Life Sciences, London, United Kingdom
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