MM14B:
The Microbial Phosphorus Cycle Posters

Session ID#: 84059

Session Description:
Phosphorus is a nutrient required by all forms of life, including the ocean’s smallest inhabitants.  A culmination of research over the last several decades has transformed our view of the global phosphorus cycle to one that is highly influenced by the activity of microbes.  Marine microbial communities play an active role in the transformation of P among its organic, inorganic, polymeric, oxidized, and reduced forms.  Some of these processes serve to retain and recycle bioavailable P within the marine microbiota, while the significance of other transformations are still coming to light.  Ultimately, the microbial utilization of marine P has implications for ocean productivity, especially under future ocean scenarios, where anthropogenic disturbances to marine nutrient cycles are expected to drive an increased demand for P in ocean ecosystems. The timing is therefore apt to examine the topic of microbial P cycling in the context of ocean ecosystem functioning and the socioeconomics of impacted marine environments.  In this session, we welcome abstracts that examine how marine microbes shape and are shaped by the phosphorus cycle, and how the microbial P cycle impacts cycles of other bioelements, including present and future carbon dioxide and nitrogen fixation.  Abstracts that leverage novel methodologies, including the application of molecular-level geochemical, biochemical, and bioinformatics approaches are particularly encouraged.
Co-Sponsor(s):
  • ME - Marine Ecology and Biodiversity
  • OB - Ocean Biology and Biogeochemistry
Index Terms:
Primary Chair:  Solange Duhamel, Lamont Doherty Earth Observatory, Palisades, NY, United States
Co-Chair:   , Scripps Institution of Oceanography, La Jolla, CA, United States
Primary Liaison:  Solange Duhamel, Lamont Doherty Earth Observatory, Palisades, NY, United States
Moderators:  Solange Duhamel, The University of Arizona, Tucson, United States and Kahina Djaoudi, The University of Arizona, Tucson, AZ, United States
Student Paper Review Liaison:  Julia M Diaz, Scripps Institution of Oceanography, San Diego

Abstracts Submitted to this Session:

 
Effects of As:P Ratios on Co-cultures of a Green Alga and SAR11 Bacteria (642188)
Chih-Ping Lee1, Kimberly Halsey2 and Stephen J Giovannoni1, (1)Oregon State University, Department of Microbiology, Corvallis, OR, United States, (2)Oregon State University, Corvallis, OR, United States
 
Evidence of Phosphonate Utilization by the Eukaryotic Phytoplankton, Isochrysis galbana (657481)
LeAnn Whitney1,2, Emily J McDermith3, Catherine Mahoney1 and Michael W Lomas2, (1)Maine Maritime Academy, Corning School of Ocean Studies, Castine, ME, United States, (2)Bigelow Lab for Ocean Sciences, East Boothbay, ME, United States, (3)University of Rhode Island, Cell and Molecular Biology, Kingston, RI, United States
 
Phosphate May Be Fully Reduced to Phosphine Gas in Anoxic Seawater (642088)
Lisa Coe, University of Pittsburgh, Pittsburgh, PA, United States and Benjamin AS Van Mooy, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States
 
Piecing together phosphonate cycling in the surface oligotrophic ocean (643102)
Marianne Acker1, Giancarlo Bachi2, Benjamin Nash Granzow1, Oscar Sosa3, Alina M. Ebling1, Samuel T Wilson3, Benjamin AS Van Mooy1, David M Karl4, Chiara Santinelli2, Timothy S Granzow5 and Daniel Repeta1, (1)Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States, (2)CNR Institute of Biophysics, Pisa, Italy, (3)Daniel K. Inouye Center for Microbial Oceanography: Research and Education, University of Hawaii at Manoa, Honolulu, HI, United States, (4)University of Hawaii, Department of Oceanography, Honolulu, HI, United States, (5)University of Chicago, Geophysical Sciences, Chicago, IL, United States
 
Alkaline Phosphatase Activity in an Equatorial Coral Reef Ecosystem (649018)
Robert Nichols, Patrick Martin, Molly A Moynihan and Shuang Chen, Nanyang Technological University, Asian School of the Environment, Singapore, Singapore
 
Trace Metal Availability for Alkaline Phosphatases: A Proteomic Perspective from the Oligotrophic North Atlantic (643281)
Korinna Kunde1, Noelle Held2, Clare Davis3, Neil Wyatt4, Matthew R McIlvin2, Malcolm Woodward5, Mak A Saito2, Alessandro Tagliabue6, Claire Mahaffey7 and Maeve C Lohan8, (1)University of Southampton, Ocean and Earth Science, Southampton, United Kingdom, (2)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (3)University of Hawaii, School of Ocean and Earth Science and Technology, United States, (4)University of Southampton, United Kingdom, (5)Plymouth Marine Laboratory, Plymouth, United Kingdom, (6)University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, L69, United Kingdom, (7)University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom, (8)University of Southampton, Ocean and Earth Sciences, National Oceanography Centre, Southampton, United Kingdom
 
Bioavailability of representative dissolved organic phosphate compounds to microbial communities in the western North Atlantic. (643824)
Kahina Djaoudi1, Sydney Plummer2, Rachel Steffen3, Emily Waggoner1, 2 and Solange Duhamel4, (1)The University of Arizona, Tucson, AZ, United States, (2)Scripps Institution of Oceanography, La Jolla, CA, United States, (3)Skidaway Institute of Oceanography, University of Georgia, Savannah, GA, United States, (4)Lamont Doherty Earth Observatory, Palisades, NY, United States
 
Dissolved Organic Phosphorus Utilization by Synechococcus (651373)
Solange Duhamel, Lamont-Doherty Earth Observatory, Columbia University, Division of Biology and Paleo Environment, Palisades, NY, United States; The University of Arizona, Tucson, NY, United States, Emily Waggoner, The University of Arizona, Tucson, AZ, United States and , Scripps Institution of Oceanography, La Jolla, CA, United States
 
Dissolved organic phosphorus utilization by phytoplankton reveals preferential degradation of polyphosphates (651637)
Julia M Diaz1, Rachel Steffen2, James G Sanders2, Yuanzhi Tang3 and Solange Duhamel4, (1)Scripps Institution of Oceanography, UC San Diego, La Jolla, CA, United States, (2)Skidaway Institute of Oceanography, University of Georgia, Savannah, GA, United States, (3)Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, GA, United States, (4)Lamont Doherty Earth Observatory, Palisades, NY, United States