B079
Multiple Isotope Patterns within Organic Compounds: Determining Biogeochemical and Environmental Drivers

Session ID#: 77871

Session Description:
The emerging use of obtaining isotope information from more than one element in the same molecule (e.g. two or more of C, N, H, or S in amino acids or C, H, S in lipids) provides an additional dimension of information that helps tease out competing controls on the sources, transformations, and fates of organic matter.  These are now being used to study modern environments and ecosystems (e.g., marine versus terrestrial), paleo-environments (e.g., redox, climate, preservation; fossils versus sediments, rocks, and cores), and increasingly, astrobiological samples (e.g., meteorites and planetary analog environments).  This session will explore new ways to measure multiple isotope abundances in specific compounds and how this information can provide insights and solve problems differently relative to single isotope studies.  We encourage the submission of studies employing new methods or applications of two or more compound specific isotopic measurements on organic molecules from broad environmental and analytical perspectives.
Index Terms:

0420 Biomolecular and chemical tracers [BIOGEOSCIENCES]
0428 Carbon cycling [BIOGEOSCIENCES]
0454 Isotopic composition and chemistry [BIOGEOSCIENCES]

Primary Convener:  Elisabeth L Sikes, Rutgers University New Brunswick, New Brunswick, NJ, United States
Conveners:  Marilyn L Fogel, University of California Riverside, EDGE Institute, Riverside, CA, United States, Katherine Freeman, Pennsylvania State University Main Campus, Geosciences, University Park, PA, United States and Hilairy Ellen Hartnett, Arizona State University, School of Earth and Space Exploration and School of Molecular Sciences, Tempe, AZ, United States
Primary Liaison:  Marilyn L Fogel, University of California Riverside, EDGE Institute, Riverside, CA, United States
 
2H/1H Variation in Microbial Lipids is Controlled by NADPH Metabolism (Invited) (502337)
Reto Simon Wijker1, Alex L Sessions1, Tobias Fuhrer2 and Michelle Phan3, (1)California Institute of Technology, Pasadena, CA, United States, (2)ETH Zurich, Institute of Molecular Systems Biology, Zürich, Switzerland, (3)Yale University, Yale Institute for Network Science, New Haven, United States
 
Can Multiple Mass Spectrometry Platforms Make Indistinguishable Organic Micro-Pollutants Distinguishable in the Natural Environment? (502419)
Brian Giebel, Advanced Science Research Center, at the Graduate Center of City University of New York, Environmnetal Science Initiative, New York, NY, United States, Rinat Abzalimov, Advanced Science Research Center, at the Graduate Center of City University of New York, Structural Biology Initative, New York, NY, United States and Marta Concheiro-Guisan, CUNY John Jay College of Criminal Justice, New York, NY, United States
 
Bias in regression methods used for CSIA mechanistic interpretations (503693)
Ann Sullivan Ojeda1, Elizabeth Phillips2 and Barbara Sherwood Lollar2, (1)Auburn University, Department of Geosciences, Auburn, AL, United States, (2)University of Toronto, Department of Earth Sciences, Toronto, ON, Canada
 
A new tool for paleoenvironmental reconstruction: amino acid δ13C and δ2H analysis reveals shifts in a Holocene nearshore ecosystem (Invited) (503911)
Emma A Elliott Smith1, Emily L Whistler2, Todd Braje3, Paul Szpak4, Douglas J Kennett5, René L Vallenoweth6, Chris Harrod7, Bobby James Nakamoto8, Michael Fox9, Torben C Rick10, Marilyn L Fogel11 and Seth D Newsome1, (1)University of New Mexico, Biology Department, Albuquerque, NM, United States, (2)Washington State University, Anthropology, Pullman, WA, United States, (3)San Diego State University, San Diego, CA, United States, (4)Trent University, Anthropology, Peterborough, Canada, (5)UC Santa Barbara, Anthropology, Santa Barbara, United States, (6)California State University Los Angeles, Anthropology, Los Angeles, CA, United States, (7)Universidad de Antofagasta, Antofagasta, Chile, (8)University of California Merced, Merced, CA, United States, (9)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (10)Smithsonian Institution, Anthropology, Washington D.C., United States, (11)University of California Riverside, EDGE Institute, Riverside, CA, United States
 
Cryptic enrichment of nitrogen isotopes reveals metabolic differences in amino acids and alters trophic level interpretations (505313)
Noreen Tuross1, Linda Reynard1, Saskia Ryan2, Damia Ramis3 and Peter van Dommelen4, (1)Harvard University, Cambridge, MA, United States, (2)Harvard University, Cambridge, United States, (3)Independent Researcher, Palma de Mallorca, Spain, (4)Brown University, Providence, United States
 
Same Carbon Different Elements: An insight into multiple isotope patterns within bio-molecules (511761)
Huiming Bao, Louisiana State University, Department of Geology & Geophysics, Baton Rouge, LA, United States, Yuyang He, Institute of Mechanisms, Chinese Academy of Sciences, Beijing, China and Xiaobin Cao, Nanjing University, School of Earth Sciences and Engineering, Nanjing, China
 
Reconstructing High-resolution Centennial Ecosystem Changes in the California Current System from Deep-sea Coral Amino Acid δ13C and δ15N Records (519089)
Yuan Shen1, Genevieve Pugsley1, Thomas P Guilderson2 and Matthew McCarthy1, (1)University of California Santa Cruz, Ocean Sciences Department, Santa Cruz, CA, United States, (2)LLNL, Livermore, CA, United States
 
Proline and Isoleucine: Indicators of Metabolic Flux and NADPH Balance (523203)
Marilyn L Fogel1, Bobby James Nakamoto1, Kaycee Eileen Morra2, Jonathan Nye2, Emma A Elliott Smith3, Alexi Besser3, Derek A Smith4, Brian Lee1 and Seth D Newsome3, (1)University of California Riverside, EDGE Institute, Riverside, CA, United States, (2)University of California Riverside, Riverside, CA, United States, (3)University of New Mexico, Biology Department, Albuquerque, NM, United States, (4)Case Western Reserve University, Cleveland, OH, United States
 
Position-specific isotope analysis of serine by GC Orbitrap mass spectrometry (553268)
Elise Wilkes1, Alex L Sessions2, Brooke Dallas1, Hanako Yashiro3 and John M Eiler1, (1)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, (2)California Institute of Technology, Pasadena, CA, United States, (3)California Institute of Technology, Division of Biology and Biological Engineering, Pasadena, United States
 
Coupling 13C, 15N, and 14C information potential of individual AA: prospecting for unique signatures of bacterial and protist sources and cycling in oceanic dissolved organic matter. (556210)
Matthew McCarthy, University of California Santa Cruz, Ocean Sciences Department, Santa Cruz, CA, United States, Hope L Ianiri, University of California Santa Cruz, Ocean Sciences, Santa Cruz, CA, United States, Brett Walker, University of Ottawa, Department of Earth and Environmental Sciences, Ottawa, ON, Canada and Taylor Broek, Lawrence Livermore National Laboratory, Center for Accelerator Mass Spectrometry, Livermore, United States
 
A multi-isotope approach to archaeological food webs at the end of the world: bulk and compound specific amino acids of C, N and H (558282)
Jonathan Nye, Long Beach, California, United States and Marilyn L Fogel, University of California Riverside, EDGE Institute, Riverside, CA, United States
 
Potential Mechanisms for Depth Related Variations in Carbon Isotopes of Marine Particulate Organic Matter: Insights from δ13C and δ15N Values of Amino Acids (563553)
Hilary G Close, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Department of Ocean Sciences, Miami, FL, United States
 
Quantifying the role of the gut microbiome in host essential amino acid metabolism (565210)
Seth D Newsome1, Kelli L Feeser1, Christina J Bradley2, Caitlin Wolf1, Cristina D. Takacs-Vesbach1 and Marilyn L Fogel3, (1)University of New Mexico, Biology Department, Albuquerque, NM, United States, (2)Salisbury University, Biological Sciences Department, Salisbury, MD, United States, (3)University of California Riverside, EDGE Institute, Riverside, CA, United States
 
High Tibetan Plateau Perturbing C4-grassland Expansion (588119)
Guangsheng Zhuang, Louisiana State University, Geology and Geophysics, Baton Rouge, LA, United States
 
Position-Specific Isotope Fractionations Predicted by Molecular Modeling: Amino Acids (589498)
Jason Daniel Boettger and James Kubicki, University of Texas at El Paso, El Paso, TX, United States
 
Carbon, nitrogen, and hydrogen isotope analysis of individual amino acids reveals variation in the gut microbiome’s role in the protein metabolism of wild small mammals (590079)
Alexi Besser1, Christina M Blevins1, Emma A Elliott Smith1, Marilyn L Fogel2 and Seth D Newsome1, (1)University of New Mexico, Biology Department, Albuquerque, NM, United States, (2)University of California Riverside, EDGE Institute, Riverside, CA, United States
 
A new approach coupling ion-exchange chromatography purification and off-line conversion of individual amino acids to N2O for robust δ15N analysis (595116)
Lin Zhang, Texas A&M University Corpus Christi, Corpus Christi, TX, United States, Wingman Lee, Texas A&M University-Corpus Christi, Corpus Christi, United States, Chongxiao Ji, Texas A&M University Corpus Christi, Corpus Christi, United States, Rupsa Roy, University of Massachusetts Dartmouth, New Bedford, MA, United States and Mark A Altabet, Univ Massachusetts Darmouth, New Bedford, MA, United States
 
A window into California’s past coastal environments: Compound-specific amino acid isotope ratios from bivalve shells to reconstruct nearshore primary productivity (599195)
Natasha L Vokhshoori, University of California Santa Cruz, Ocean Sciences, Santa Cruz, CA, United States, Todd Braje, San Diego State University, San Diego, CA, United States, Torben C Rick, Smithsonian Institution, Anthropology, Washington D.C., United States and Matthew McCarthy, University of California Santa Cruz, Ocean Sciences Department, Santa Cruz, CA, United States
 
A multi-element stable isotope approach to investigate sources and cycling of dissolved organic nitrogen (599906)
Hope L Ianiri, University of California Santa Cruz, Ocean Sciences, Santa Cruz, CA, United States, Taylor Broek, Lawrence Livermore National Laboratory, Center for Accelerator Mass Spectrometry, Livermore, United States and Matthew McCarthy, University of California Santa Cruz, Ocean Sciences Department, Santa Cruz, CA, United States
 
Simultaneous analysis of stable carbon and hydrogen isotopic compositions (δ13C and δ2H) using Cavity Ring-Down Spectroscopy (CRDS): Method comparison and standard reference material selection (600331)
Hai Pan and Randy Culp, University of Georgia, Center for Applied Isotope Studies, Athens, GA, United States
 
δ13C and δ2H of Amino Acids in Escherichia coli (E. coli) Altered by Catabolic Enzyme Knockouts (619031)
Bobby James Nakamoto1, Derek A. Smith2,3, Brian Lee1, Melanie Suess3, Alexander S Bradley3 and Marilyn L Fogel1, (1)University of California Riverside, EDGE Institute, Riverside, CA, United States, (2)Case Western Reserve University, Dept. of Biology, Cleveland, OH, United States, (3)Washington University in St Louis, Dept. of Earth & Planetary Sciences, St. Louis, MO, United States
 
Chasing butterflies: a three-dimensional isotopic approach with amino acids (620762)
Kaycee Eileen Morra, University of California Riverside, Riverside, CA, United States, Seth D Newsome, University of New Mexico, Biology Department, Albuquerque, NM, United States, Marilyn L Fogel, University of California Riverside, EDGE Institute, Riverside, CA, United States and Gary Graves, National Museum of Natural History, Washington DC, United States
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