B53K:
Understanding the Biogeochemistry of Nitrogen Inputs and Outputs from Molecular to Global Scales II Posters


Submit an Abstract to this Session


Session ID#: 52343

Session Description:
Nitrogen (N) is abundant in the atmosphere as N2 gas but must undergo chemical changes that yield “fixed” N forms to be bioavailable. Fixed N can also be converted back to N2.   Global N cycling has undergone drastic alterations over time, with implications for the biosphere’s size, evolution, and the biogeochemical cycling of carbon and other elements.  Natural processes of N input (e.g. biological nitrogen fixation, lightning) and output (e.g. denitrification, anammox) have controlled the amount of bioavailable N until the recent Anthropocene. However, uncertainties remain on the contributions, controls, mechanisms, and evolution of N flows. This session unites researchers employing cross-disciplinary tools to address how N enters, is transformed, and exits the biosphere in modern and ancient systems over multiple size scales. We invite submissions on: controls on N inputs/outputs; N budgets; microbial physiology, biochemistry; ancient geochemical change inferred from protein/metabolism evolution; stable isotopes; geochemistry/OMICs-based measurement and model studies.
Primary Convener:  Xinning Zhang, Princeton University, Dept. of Geosciences and Princeton Environmental Institute, Princeton, NJ, United States
Conveners:  Betul Kacar, University of Arizona, Dept. of Molecular and Cellular Biology, Astronomy and Steward Observatory, Tucson, AZ, United States and Sebastian Kopf, University of Colorado at Boulder, Geological Sciences, Boulder, CO, United States
Primary Liaison:  Xinning Zhang, Princeton University, Dept. of Geosciences and Princeton Environmental Institute, Princeton, NJ, United States
Chairs:  Xinning Zhang, Princeton University, Dept. of Geosciences and Princeton Environmental Institute, Princeton, NJ, United States and Betul Kacar, University of Arizona, Dept. of Molecular and Cell Biology, Dept. of Astronomy, Tucson, AZ, United States
OSPA Liaison:  Sebastian Kopf, University of Colorado, Boulder, Department of Earth Science, Boulder, United States

Cross-Listed:
  • GC - Global Environmental Change
  • OS - Ocean Sciences
  • PP - Paleoceanography and Paleoclimatology
Index Terms:

0444 Evolutionary geobiology [BIOGEOSCIENCES]
0465 Microbiology: ecology, physiology and genomics [BIOGEOSCIENCES]
0469 Nitrogen cycling [BIOGEOSCIENCES]
4870 Stable isotopes [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]

Abstracts Submitted to this Session:

N Isotopes Suggest Agriculture is not a Significant Source of NOx Emissions in the Central Valley of California (428941)
Ambar Rebecca Maldonado Santos1, Greg Michalski2, Benjamin Paul Wilkins3, Wenqi Zhang2,4, Yanlin Zhang4 and Daniela Antunez2, (1)InterAmerican University of Puerto Rico, Bayamon, United States, (2)Purdue University, Earth, Atmospheric & Planetary Sciences, West Lafayette, IN, United States, (3)Purdue University, Chemistry, West Lafayette, IN, United States, (4)NUIST Nanjing University of Information Science and Technology, Nanjing, China
Alternatives to Neanderthal Hypercarnivory - Experimental Study of the δ15N Values of Meat During Putrefaction (459969)
Kimberly Foecke, George Washington University, Washington, DC, United States, Alison Brooks, George Washington University, Washington, United States and Christine France, Smithsonian Museum Conservation Institute, Suitland, United States
Linking Hydrology and Nitrogen Biogeochemistry in an Urban Stream with Continuous Sensing and Stable Isotopes (393245)
Rebecca Forgrave1, Emily M. Elliott2, Daniel Bain2 and Brian F Thomas3, (1)Oak Ridge Institute for Science and Education, Oak Ridge, United States, (2)University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, United States, (3)University of Pittsburgh, Pittsburgh, PA, United States
Spatial and temporal dynamics of nitrogen in a mountainous watershed (432697)
Nicholas Bouskill1, Taylor Maavara2, Markus Bill3, Eoin Brodie4, Mark E Conrad3, Patrick Sorensen4, Carl I Steefel5, Tetsu K Tokunaga6, Jiamin Wan7 and Kenneth Hurst Williams8, (1)Lawrence Berkeley National Laboratory, Ecology, Berkeley, CA, United States, (2)Yale University, School of the Environment, New Haven, CT, United States, (3)Lawrence Berkeley National Laboratory, Energy Geosciences Division, Berkeley, CA, United States, (4)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States, (5)Lawrence Berkeley National Laboratory, Berkeley, United States, (6)Earth and Environment Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (7)Univ of California, Berkeley, CA, United States, (8)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States
Assessing the Linkages Between Tree Species Composition and Stream Water Nitrate in a Reference Watershed in Central Appalachia (360638)
William Peterjohn, West Virginia University, Morgantown, WV, United States, Mark Burnham, University of Illinois Urbana- Champaign, Center for Advanced Bioenergy and Bioproducts Innovation, Urbana, IL, United States, Martin J. Christ, West Virginia Department of Environmental Protection, Fairmont, United States and Mary B Adams, US Forest Service, Northern Research Station, Morgantown, WV, United States
Molybdenum, phosphorus, and pH do not constrain free-living nitrogen fixation in a tropical forest in the southeastern Amazon (395307)
Michelle Wong1, Robert Howarth2, Roxanne M. Marino2, Paulo M Brando3 and Christopher Neill4, (1)Cornell University, Ecology and Evolutionary Biology, Ithaca, NY, United States, (2)Cornell University, Ecology & Evolutionary Biology, Ithaca, NY, United States, (3)Yale University, School of the Environment, New Haven, CT, United States, (4)Woodwell Climate Research Center, Falmouth, MA, United States
Physiological Implications of Alternative Nitrogen Fixation (444003)
Katja E. Luxem, Princeton University, Department of Geosciences, Princeton, NJ, United States, Anne M.L. Kraepiel, Princeton University, Princeton, NJ, United States and Xinning Zhang, Princeton University, Dept. of Geosciences and Princeton Environmental Institute, Princeton, NJ, United States
Ancient biochemical evolution of nitrogenase through the history of Earth oxygenation (378468)
Amanda Kathryn Garcia, University of Wisconsin Madison, Bacteriology, Madison, WI, United States, Hanon McShea, Harvard University, Department of Organismic and Evolutionary Biology, Cambridge, United States, Bryan Kolaczkowski, University of Florida, Department of Microbiology and Cell Science, Ft Walton Beach, United States and Betul Kacar, University of Arizona, Department of Molecular and Cellular Biology, Tucson, United States
Alteration of the a-70 “gatekeeping” residue of the Mo-nitrogenase active site increases cellular scale nitrogen isotope fractionation during biological nitrogen fixation (466285)
Eunah Han, Princeton University, Princeton, NJ, United States, Ashley E Maloney, University of Washington Seattle Campus, Oceanography, Seattle, WA, United States, Sebastian Kopf, University of Colorado, Boulder, Department of Earth Science, Boulder, United States and Xinning Zhang, Princeton University, Dept. of Geosciences and Princeton Environmental Institute, Princeton, NJ, United States
A nitrate isotope view of the seasonal nitrogen cycle of the southern Benguela upwelling system (439717)
Dr. Raquel Flynn1, Julie Granger2, Jessica Burger3, Keshnee Pillay4 and Sarah Fawcett3, (1)University of North Carolina at Chapel Hill, Earth, Marine, and Environmental Sciences, Chapel Hill, North Carolina, United States, (2)University of Connecticut, Marine Sciences, Groton, United States, (3)University of Cape Town, Oceanography, Cape Town, South Africa, (4)Department of Environmental Affairs Oceans and Coasts, Cape Town 8012, South Africa
Untangling the Roles of Membrane Transport and Enzymatic Variation in Denitrification Isotope Effects (465053)
Ciara Asamoto, Boulder, CO, United States and Sebastian Kopf, University of Colorado, Boulder, Department of Earth Science, Boulder, United States
Pycnocline recipe revisited using the nitrate isotopes: New estimates for the overturning ratio and low-latitude nutrient supply (430503)
François Fripiat1, Dario Marconi2, Alfredo Martinez-Garcia1, Sarah Fawcett3, Daniel Mikhail Sigman2 and Gerald Hermann Haug1, (1)Max Planck Institute for Chemistry, Mainz, Germany, (2)Princeton University, Geosciences, Princeton, United States, (3)University of Cape Town, Oceanography Department, Cape Town, South Africa
Nitrogen cycle dynamics during the Cretaceous Oceanic Anoxic Event 2 in the Western Interior Seaway. (423209)
Jonn Morgan van Oosten-Edl1, Garrett Boudinot1, Brett Davidheiser2, Kathryn E Snell2 and Julio Sepulveda1, (1)Organic Geochemistry Laboratory, Department of Geological Sciences and Institute of Arctic and Alpine Research (INSTAAR), University of Colorado, Boulder, CO, United States, (2)Earth Systems Stable Isotope Laboratory, Department of Geological Sciences, Boulder, CO, United States
Foraminifera-bound Nitrogen Isotopes in the South Atlantic Subtropical Gyre over the last 500,000 Years (432065)
Alexandra Auderset1, Alfredo Martinez-Garcia2, Daniel Mikhail Sigman3, François Fripiat2, Hubert Vonhof2 and Gerald Hermann Haug2, (1)University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom, (2)Max Planck Institute for Chemistry, Mainz, Germany, (3)Princeton University, Geosciences, Princeton, United States
Convergent Estimates of Marine Nitrogen Fixation (413735)
Dr. Wei-Lei Wang1, Francois Primeau2, J. Keith Moore2 and Adam Martiny2, (1)Xiamen University, Xiamen, China, (2)University of California Irvine, Earth System Science, Irvine, CA, United States
In situ measurements of coral-associated nitrogen fixation from turbid reefs (428137)
Molly Anne Moynihan, Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore, Patrick Martin, Nanyang Technological University, Asian School of the Environment, Singapore, Singapore, Kyle Morgan, Nanyang Technological University, Asian School for the Environment, Singapore, Singapore, David Baker, University of Hong Kong, School of Biological Sciences, Hong Kong, Hong Kong and Nathalie Goodkin, American Museum of Natural History, Earth and Planetary Sciences, New York, NY, United States
The Fixed Nitrogen Sensitivity of Biological Nitrogen Fixation in the Sulfate-Reducing Diazotroph, Desulfovibrio vulgaris. (459539)
Romain Darnajoux, Princeton University, Dept. of Geosciences, Princeton, NJ, United States and Xinning Zhang, Princeton University, Dept. of Geosciences and Princeton Environmental Institute, Princeton, NJ, United States
Diel controls on nitrogen loss pathways in a photosynthetic wetland biomat (453876)
Michael Vega, Colorado School of Mines, Hydrologic Science and Engineering, Golden, CO, United States, Adam Brady, Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO, United States and Jonathan Sharp, Colorado School of Mines, Civil and Environmental Engineering, Golden, CO, United States
The characteristics of environmental microbial ecological network in sediments of shallow freshwater lake with different eutrophic status (411996)
Ziwei Wang, Xiaohong Ruan, Wenli Shi, Ying Bai, Yaping Zhang and Rongfu Li, Nanjing University, Nanjing, China
Discovery of Seven New Encapsulin Nanocompartments Including Two from Anammox Bacteria (369306)
John Tracey1, Maricela Coronado2, Tobias Giessen3, Maggie Lau2, Pamela Silver3 and Bess B Ward4, (1)Lamont -Doherty Earth Observatory, Palisades, United States, (2)Princeton University, Department of Geosciences, Princeton, NJ, United States, (3)Harvard Medical School, Boston, United States, (4)Princeton University, Department of Geosciences, Princeton, United States

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