B047
Exploring the Biotic Fringe

Session ID#: 80739

Session Description:
The transition from sterile environments to those populated by microbes is known as the biotic fringe and is expected to occur at widely varying environmental extremes relating to power, temperature, pH, ionic concentrations, etc., and combinations thereof. The roots of biogeochemical cycles are unknown but are often believed to have started as spontaneous geochemical reactions that life evolved to harvest energy from by means of simple biochemistry. As a consequence of evolution, the biotic fringe has shifted and life has expanded its realized niche into the previously uninhabitable. Exploring biotic fringe environments that host life’s present-day pioneers and survivors has the potential to enhance our understanding of the emergence of life on Earth, how life evolves and overcomes physiological barriers, and what the habitability limits in the Universe might be. This session welcomes all contributions from field studies, lab experiments, and theoretical models that bear on the biotic fringe.
Index Terms:

0448 Geomicrobiology [BIOGEOSCIENCES]
0456 Life in extreme environments [BIOGEOSCIENCES]
0463 Microbe/mineral interactions [BIOGEOSCIENCES]
0465 Microbiology: ecology, physiology and genomics [BIOGEOSCIENCES]

Primary Convener:  Everett Shock, Arizona State University, Tempe, AZ, United States
Conveners:  Marshall Wayne Bowles, MARUM - University of Bremen, Bremen, Germany; Louisiana Universities Marine Consortium, Chauvin, LA, United States, Elizabeth Trembath-Reichert, Arizona State University, Tempe, AZ, United States and Mark Alexander Lever, ETH Zurich, Department of Environmental Systems Science, Institute of Biogeochemistry & Pollutant Dynamics, Zürich, Switzerland
Primary Liaison:  Everett Shock, Arizona State University, Tempe, AZ, United States
 
The power of microbial life in marine sediments (489486)
James Andrew Bradley1, Sandra Arndt2, Jan Amend3, Ewa Burwicz4, Andrew Dale4, Matthias Egger5 and Douglas LaRowe1, (1)University of Southern California, Los Angeles, CA, United States, (2)Université Libre de Bruxelles, Brussel, Belgium, (3)University of Southern California, Earth Sciences, Los Angeles, CA, United States, (4)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (5)Utrecht University, Department of Earth Sciences - Geochemistry, Utrecht, Netherlands
 
Discovery of a Novel Archaeal Lineage in Near-Boiling Geothermal Spring of Central Kyushu, Japan (514626)
Katsuhiro Asamatsu1, Makoto Saito1, Kei Yamashita2, Jun-Ichiro Ishibashi2 and Katsunori Yanagawa1, (1)The University of Kitakyushu, Kitakyushu, Japan, (2)Kyushu University, Fukuoka, Japan
 
What Types of Abiotic Reduced Compounds Fuel Rock-Hosted Ecosystems? (534408)
Benedicte Menez, Rachael Moore, Helene Bouquerel, Aurélien Lecoeuvre, Celine Pisapia and Emmanuelle Gérard, Université de Paris, Institut de physique du globe de Paris, Paris, France
 
Abiotic (Prebiotic?) Organic Chemistry in a Potentially Ancient Hypersaline Brine: New Insights on the Limits of Microbial Life Inhabiting 3.1 km Deep Fracture Fluid in South Africa (559378)
Devan Nisson1, Thomas L Kieft2, Oliver Warr3, Clifford C Walters4, Esta van Heerden5, Errol Duncan Cason6, Julio Castillo Hernandez7, Jan-G Vermeulen7, Barry M Freifeld8, Hiroshi Ogasawara9, Raymond J Durrheim10, Barbara Sherwood Lollar11, Bennie Liebenberg12 and Tullis C Onstott13, (1)Princeton University, Princeton, NJ, United States, (2)New Mexico Institute of Technology, Department of Biology, Socorro, NM, United States, (3)University of Toronto, Department of Earth Sciences, Toronto, ON, Canada, (4)ExxonMobil Research and Engineering Company, Annandale, NJ, United States, (5)North-West University, Mahikeng, South Africa, (6)University of the Free State, Department of Microbial, Biochemical and Food Technology, Bloemfontein, South Africa, (7)University of the Freestate, Department of Microbial, Biochemical and Food Technology, Bloemfontein, Free State, South Africa, (8)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (9)Ritsumeikan University, Kusathu, Japan, (10)University of the Witwatersrand, School of Geosciences, Johannesburg, South Africa, (11)University of Toronto, Earth Sciences, Toronto, ON, Canada, (12)Independent Consultant, Orkney, South Africa, (13)Princeton University, Department of Geosciences, Princeton, NJ, United States
 
Synthesizing Metal Hydroxides to Examine a Pathway of Prebiotic Phosphorus Cycling on Mars (560059)
Jonathan Major1, Laurie M Barge2, Bethany Purdin Theiling1, Winton C Cornell3 and Abigail Fraeman4, (1)University of Tulsa, Geosciences, Tulsa, OK, United States, (2)NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (3)University of Tulsa, Geosciences, Tulsa, OK, United States, (4)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
 
High Temperature and Pressure (HTP) Reactor System for Understanding Physiology of Extremophiles at in situ Condition (562234)
Yuki Morono, JAMSTEC, Kochi Institute for Core Sample Research, Kochi, Japan, Akira Ijiri, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kochi Institute for Core Sample Research, Kanagawa, Japan and Nozomi Katsuki, Kochi University, Faculty of Agriculture, Nankoku, Japan
 
Microenvironments of Habitability in the Hyperarid Atacama Desert (569006)
Donald Glaser1, Damien Finn2, Hinsby Cadillo-Quiroz2, Saul Perez-Montano3, Steven J Desch4 and Hilairy Ellen Hartnett5, (1)Arizona State University, Tempe, AZ, United States, (2)Arizona State University, School of Life Science, Tempe, AZ, United States, (3)San Jose State University, San Jose, CA, United States, (4)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, (5)Arizona State University, School of Earth and Space Exploration and School of Molecular Sciences, Tempe, AZ, United States
 
Biological production and utilization of volatile fatty acids and alcohols in hydrothermally altered sediments of the Guaymas Basin (594736)
Guangchao Zhuang1, Andy Montgomery1, Vladimir Samarkin1, Min Song2, Jiarui Liu3, Florence Schubotz2, Andreas Teske4, Kai-Uwe Hinrichs2 and Samantha Benton Joye1, (1)University of Georgia, Department of Marine Sciences, Athens, GA, United States, (2)MARUM - University of Bremen, Bremen, Germany, (3)State Key Laboratory of Biogeology and Environment Geology, College of Marine Science and Technology, China University of Geosciences, Wuhan, China, (4)The University of North Carolina at Chapel Hill, Department of Marine Sciences, Chapel Hill, NC, United States
 
Metagenomic Exploration of the Mono Lake Water Column: How Microbes Thrive despite High Salt and Arsenic Concentrations (603776)
John Tracey1, Kathryn Hobart2, Calvin Rusley1, Herdís Steinsdóttir3, Rachel Weisend4, Alexandra Atlee Phillips5, Daan R Speth5, Rafael Laso Perez6, Benjamin J Tully7, Larry Miller8, Woodward W Fischer5, Alex L Sessions5 and Victoria J Orphan5, (1)Princeton University, Department of Geosciences, Princeton, NJ, United States, (2)Department of Earth Sciences, University of Minnesota, Minneapolis, MN, United States, (3)University of Southern Denmark, Odense, Denmark, (4)Texas A&M University-Corpus Christi, Corpus Christi, TX, United States, (5)California Institute of Technology, Pasadena, CA, United States, (6)Max Planck Institute for Marine Microbiology, Bremen, Germany, (7)University of Southern California, Center for Dark Energy Biosphere Investigations, Los Angeles, CA, United States, (8)USGS MS/480, Menlo Park, CA, United States
See more of: Biogeosciences
<< Previous Session Proposal | Next Session Proposal >>