CT53A:
Biogeochemistry of DOM and DOM-Microbe Interactions II

Session ID#: 92976

Session Description:
Dissolved organic matter (DOM) plays a major role for biogeochemical cycles in the ocean and on land.  On the one hand, DOM accumulates in the ocean over several millennia, contradicting established paradigms in geochemistry for organic matter stabilization.  On the other hand, DOM is the main mediator for the flux of energy in marine and freshwater ecosystems, as bacteria can only assimilate molecules in the dissolved phase.  The thousands-to-millions of molecules which comprise DOM carry the signatures of their source and subsequent journey through the environment.  This session will be split into two parts, where we invite contributions 1) from all areas of DOM biogeochemistry across various aquatic environments, including field, experimental, and modeling approaches which enhance our understanding of DOM quantification and its cycling in the environment and 2) which emphasize connections among organic biogeochemists, microbial ecologists, physicists, computational data analysts and all other scientists who are interested in advancing the progress at the intersection of microbiology and DOM biogeochemistry. Molecular-level and interdisciplinary studies are particularly welcome.  Also contributions that apply innovative analytical approaches, or identify novel concepts, fundamental challenges and the future directions of this fast growing field of research are encouraged.
Co-Sponsor(s):
  • MM - Microbiology and Molecular Ecology
  • MM - Microbiology and Molecular Ecology
  • OB - Ocean Biology and Biogeochemistry
Index Terms:

4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: CHEMICAL]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: CHEMICAL]
4806 Carbon cycling [OCEANOGRAPHY: BIOLOGICAL]
4808 Chemical tracers [OCEANOGRAPHY: CHEMICAL]
4825 Geochemistry [OCEANOGRAPHY: CHEMICAL]
4825 Geochemistry [OCEANOGRAPHY: CHEMICAL]
4840 Microbiology and microbial ecology [OCEANOGRAPHY: BIOLOGICAL]
4850 Marine organic chemistry [OCEANOGRAPHY: CHEMICAL]
Primary Chair:  Sasha Wagner, Rensselaer Polytechnic Institute, Earth and Environmental Sciences, Troy, NY, United States
Co-chairs:  Sinikka T. Lennartz, University of Oldenburg, Institute for Chemistry and Biology of the Marine Environment (ICBM), Oldenburg, Germany, Bryndan Paige Durham, University of Washington, School of Oceanography, Seattle, WA, United States and Helena Osterholz, University of Oldenburg, Oldenburg, Germany
Primary Liaison:  Sasha Wagner, Rensselaer Polytechnic Institute, Earth and Environmental Sciences, Troy, NY, United States
Moderators:  Bryndan Paige Durham, University of Washington, School of Oceanography, Seattle, WA, United States and Helena Osterholz, University of Oldenburg, Oldenburg, Germany
Student Paper Review Liaisons:  Bryndan Paige Durham, University of Washington, School of Oceanography, Seattle, WA, United States and Helena Osterholz, University of Oldenburg, Oldenburg, Germany

Abstracts Submitted to this Session:

CT53A-01
Nucleotide cross-feeding links the marine microbial carbon and nitrogen cycles (652463)
Rogier Braakman1, Brandon Meyer Satinsky2, Krista Longnecker3, Jamie Becker4, Aldo Arellano5, Keven Dooley5, Shane Lahman Hogle6, Melissa C. Kido Soule7, Tyler J O'Keefe5, Elizabeth B Kujawinski3 and Sallie W Chisholm5, (1)Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States, (2)Massachusetts Institute of Technology, Cambridge, MA, United States, (3)Woods Hole Oceanographic Inst, Marine Chemistry & Geochemistry, Woods Hole, United States, (4)Haverford College, Biology, Haverford, PA, United States, (5)Massachusetts Institute of Technology, Civil and Environmental Engineering, Cambridge, MA, United States, (6)University of California, San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (7)Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, United States
CT53A-02
Determining bacterially mediated fate of carbon: A stable isotope approach with a selection of cultivated marine bacteria (649622)
Ty James Samo1, Xavier Mayali2, Jeff Kimbrel1, Benjamin Stewart1 and Peter K Weber2, (1)Lawrence Livermore National Laboratory, Livermore, United States, (2)Lawrence Livermore National Laboratory, Livermore, CA, United States
CT53A-03
The Marine Cyanobacterium Prochlorococcus Releases Diverse ‘Dissolved’ Organic Molecules Within Extracellular Vesicles (647440)
Steven Biller1, Rachel A Lundeen2, Laura Hmelo2, Kevin Becker3, Aldo Arellano4, Keven Dooley4, Laura Carlson2, Katherine Heal5, Benjamin AS Van Mooy3, Anitra E Ingalls6 and Sallie W Chisholm4, (1)Wellesley College, Department of Biological Sciences, Wellesley, United States, (2)University of Washington, School of Oceanography, Seattle, WA, United States, (3)Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States, (4)Massachusetts Institute of Technology, Civil and Environmental Engineering, Cambridge, MA, United States, (5)Pacific Northwest National Laboratories, United States, (6)University of Washington Seattle Campus, School of Oceanography, Seattle, United States
CT53A-04
Seasonal Dynamics of Microbial Activity and Organic Matter in the Arctic Gateway (492159)
Anabel von Jackowski1, Julia Grosse1 and Anja Engel2, (1)GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany, (2)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
CT53A-05
A Ubiquitous Diatom Modulates its Microbial Consortium Through a Carrot-and-Stick Strategy (642766)
Ahmed Shibl, New York University AD, Biology, Abu Dhabi, United Arab Emirates and Shady A Amin, New York University Abu Dhabi, Biology, Abu Dhabi, United Arab Emirates
CT53A-06
Changing diets – microbial remineralization of primary producer exudates from reefs during phase shifts (652755)
Milou Arts1, Benjamin Mueller2, Linda Wegley Kelly3, Craig E Nelson4, Irina Koester5, Daniel Petras5, Ellen C Hopmans6, Mark JA Vermeij7, Pieter Dorrestein8 and Andreas Haas1, (1)Royal Netherlands Institute for Sea Research, Marine Microbiology & Biogeochemistry, Den Burg, Netherlands, (2)University of Amsterdam, Institute for Biodiversity and Ecosystem Dynamics, Amsterdam, Netherlands, (3)San Diego State University, Department of Biology, San Diego, United States, (4)University of Hawaii at Manoa, HI, United States, (5)University of California San Diego, Scripps Institution of Oceanography, La Jolla, United States, (6)Royal Netherlands Institute for Sea Research, Department of Marine Microbiology and Biogeochemistry, Den Burg, Netherlands, (7)Carmabi Foundation, Netherlands Antilles, (8)University of California San Diego, Collaborative Mass Spectrometry Innovation Center, La Jolla, CA, United States
CT53A-07
Systematic variation in marine dissolved organic matter stoichiometry and remineralization ratios as a function of lability (640269)
Emily Zakem, University of Southern California, Los Angeles, CA, United States and Naomi Marcil Levine, University of Southern California, Los Angeles, United States
CT53A-08
Mechanistic microbial ecosystem model inference: A new method to analyze time series data (642232)
Ferdi Hellweger, Technical University of Berlin, Water Quality Engineering, Berlin, Germany and Jutta Hoffmann, Technical University of Berlin, Berlin, Germany
See more of: Chemical Tracers, Organic Matter and Trace Elements