B43C:
Cryptic Cross-Linkages Among Biogeochemical Cycles: Novel Insights from the Perspective of Reactive Intermediates II Posters

Thursday, 18 December 2014: 1:40 PM-6:00 PM
Chairs:  Scott D Wankel, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States and Colleen M Hansel, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States
Primary Conveners:  Scott D Wankel, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States
Co-conveners:  Colleen M Hansel, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States
OSPA Liaisons:  Scott D Wankel, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States

Abstracts Submitted to this Session:

0252
 
NOx and ammonium isotopic fingerprints of anammox in natural and engineered systems: Implications for N isotope budgets and the use of NOx isotopes to diagnose process stability in wastewater treatment
Moritz F Lehmann1, Nicolas Stöcklin1, Benjamin Brunner2, Caitlin H Frame1, Adriano Joss3, Marco Kipf3, Thomas Kuhn1 and Pascal Wunderlin3, (1)University of Basel, Department of Environmental Sciences, Basel, Switzerland, (2)University of Texas at El Paso, Geological Sciences, El Paso, TX, United States, (3)EAWAG Swiss Federal Institute of Aquatic Science and Technology, Duebendorf, Switzerland
0253
 
Nitrite isotope dynamics in coastal sediments: An intricate link between nitrogen and oxygen cycling
Chawalit Charoenpong1,2, Carolyn Buchwald2, Wiebke Ziebis3 and Scott D Wankel2, (1)Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Science, Cambridge, MA, United States, (2)Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States, (3)University of Southern California, Biological Sciences, Los Angeles, CA, United States
0254
 
Stable Isotope Systematics of Abiotic Nitrite Reduction Coupled with Anaerobic Iron Oxidation: The Role of Reduced Clays and Fe-bearing Minerals
Kalina Cozette Grabb, Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, Carolyn Buchwald, WHOI, Marine Chemistry and Geochemistry, Woods Hole, MA, United States, Colleen M Hansel, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and Scott D Wankel, WHOI, Woods Hole, MA, United States
0255
 
Sulfur reactions and cryptic cross-linkages to oxygen, iron, and carbon cyclin
Greg Druschel1, Fotios-Christos A. Kafantaris1, David A Fike2, Philippe Schmitt-Kopplin3, Sabine Dvorski3 and Harry Oduro4, (1)Indiana University Purdue University Indianapolis, Indianapolis, IN, United States, (2)Washington University, St. Louis, MO, United States, (3)Helmholtz Zentrum Muenchen, German Research Center for Environmental Health, Research Unit Analytical Biogeochemistry, Neuherberg, Germany, (4)University of St Andrews, St Andrews, United Kingdom
0256
 
Characterizing mechanisms of extracellular electron transport in sulfur and iron-oxidizing electrochemically active bacteria isolated from marine sediments
Annette R Rowe, Lina J Bird, Bonita R Lam and Kenneth H Nealson, University of Southern California, Los Angeles, CA, United States
0257
 
Sulfur Speciation in Peat: a Time-zero Signature for the " Spruce and Peatland Responses Under Climate and Environmental Change" Experiment
Olha Furman1, Brandy M Toner1, Stephen D Sebestyen2, Randy K Kolka2 and Edward A Nater1, (1)Univ of MN /Soil Water&Climate, St. Paul, MN, United States, (2)USDA Forest Service, Grand Rapids, MN, United States
0258
 
Reactivity of elemental sulfur nanoparticles and their role on the formation of sulfur intermediates
Fotios-Christos A. Kafantaris and Greg Druschel, Indiana University Purdue University Indianapolis, Indianapolis, IN, United States
0259
 
Geochemical Evidence of Cryptic Sulfur Cycling in Salt Marsh Sediments
Jennifer V Mills, Gilad Antler and Alexandra v Turchyn, University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom
0260
 
Shifts in Microbial Community Structure with Changes in Cathodic Potential in Marine Sediment Microcosms 
Bonita R Lam, Annette R Rowe and Kenneth H Nealson, University of Southern California, Los Angeles, CA, United States
0261
 
Occurrence, pathways and implications of biological production of reactive oxygen species in natural waters
Tong Zhang1, Colleen M Hansel1, Bettina M Voelker2 and Carl H Lamborg1, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)Colorado School Mines, Golden, CO, United States
0262
 
Temperature and Light Effects on Extracellular Superoxide Production by Algal and Bacterial Symbionts in Corals: Implications for Coral Bleaching
Caterina Brighi1, Julia M Diaz2, Amy Apprill2 and Colleen M Hansel2, (1)Imperial College London, Department of Chemistry, London, United Kingdom, (2)Woods Hole Oceanographic Institution, Department of Marine Chemistry & Geochemistry, Woods Hole, MA, United States
0263
 
Hydrogen Peroxide Cycling in Acidic Geothermal Environments and Potential Implications for Oxidative Stress
Margaux Mesle1, Jacob Beam1, Zackary Jay1, Brynna Bodle1, Eric Bogenschutz1 and William Inskeep1,2, (1)Montana State University, Department of Land Resources and Environmental Sciences, Bozeman, MT, United States, (2)Pacific Northwest National Laboratory, Richland, WA, United States
0264
 
Dynamics of Superoxide Production and Decay in Natural Trichodesmium Colonies from the Sargasso Sea: Implications for Cell Signaling
Colleen M Hansel1, Carolyn Buchwald1, Julia M Diaz1, Sonya Dyhrman2 and Ben A.S. Van Mooy1, (1)Woods Hole Oceanographic Institution, Department of Marine Chemistry & Geochemistry, Woods Hole, MA, United States, (2)Columbia University, Palisades, NY, United States
0265
 
Role of Reactive Intermediates in Manganese Oxide Formation By Filamentous Ascomycete Fungi
Carolyn Alexandra Zeiner1, Christopher Anderton2, Si Wu2, Samuel Purvine2, Erika Zink3, Ljiljana Paša-Tolić2, Cara M Santelli4 and Colleen M Hansel5, (1)Harvard University, School of Engineering and Applied Sciences, Cambridge, MA, United States, (2)Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA, United States, (3)Pacific Northwest National Laboratory, Biological Sciences Division, Richland, WA, United States, (4)Smithsonian Institution - NMNH, Washington, DC, United States, (5)Woods Hole Oceanographic Institution, Department of Marine Chemistry and Geochemistry, Woods Hole, MA, United States
0266
 
Understanding the Development and Stabilization of Mn(III) Intermediates during Microbial Manganese Reduction
Jena E Johnson1, Pratixa Savalia2, Benjamin David Kocar3, Samuel M Webb4, Kenneth H Nealson2 and Woodward W Fischer1, (1)California Institute of Technology, Pasadena, CA, United States, (2)University of Southern California, Los Angeles, CA, United States, (3)Massachusetts Institute of Technology, Cambridge, MA, United States, (4)SLAC National Accelerator Laboratory, Menlo Park, CA, United States
 
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