MM24C:
Phytoplankton-Bacteria Interactions: From Microscales to Ocean Scales I Posters


Session ID#: 27973

Session Description:
Interactions between phytoplankton and bacteria arguably represent the most important inter-organism association in aquatic environments. These relationships influence fundamental processes that include nutrient provision and regeneration, primary production, harmful blooms and biogeochemical cycling. Although typically studied over large spatiotemporal scales, emerging evidence indicates that this relationship is often governed by microscale interactions played out within the region immediately surrounding individual phytoplankton cells known as ‘the phycosphere.’ The exchange of metabolites and infochemicals at this interface governs phytoplankton-bacteria relationships, which span mutualism, commensalism antagonism, parasitism and competition. The importance of the phycosphere has been postulated for four decades, yet only recently have new technological and conceptual frameworks made it possible to start teasing apart the complex nature of this unique microbial habitat. In this session, we aim to provide a platform for researchers from diverse backgrounds to explore phytoplankton-bacteria interactions in the phycosphere and beyond, using model experimental systems, environmental data, modelling and new technologies.
Primary Chair:  Shady A Amin, New York University Abu Dhabi, Biology, Abu Dhabi, United Arab Emirates
Co-Chair:  Justin Seymour, University of Technology Sydney, Sydney, NSW, Australia
Moderators:  Jean-Baptiste Raina, University of Technology Sydney, Sydney, NSW, Australia and Ahmed A Shibl, New York University Abu Dhabi, Biology, Abu Dhabi, United Arab Emirates
Student Paper Review Liaison:  Rachelle Lim, University of Washington, School of Oceanography, Seattle, WA, United States
Index Terms:

4815 Ecosystems, structure, dynamics, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4840 Microbiology and microbial ecology [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4855 Phytoplankton [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4872 Symbiosis [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
  • BN - Biogeochemistry and Nutrients

Abstracts Submitted to this Session:

Deducing the Mechanism of Algicidal Activity of the Bacterial Metabolite, Tetrabromopyrrole (307402)
Russell Nicholson, Haverford College, Haverford, PA, United States, Elizabeth Harvey, Skidaway Institute of Oceanography at the University of Georgia, Marine Sciences, Savannah, GA, United States, Christopher Kirby, Northeastern University, Boston, MA, United States, Bradley S Moore, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States and Kristen Whalen, Haverford College, Biology, Haverford, United States
Trophic exchange between eukaryotic phytoplankton and bacterial taxa revealed through metabolomics and transcriptomics (Invited) (314585)
Bryndan Paige Durham1, Ryan D Groussman2, Angela Boysen2, Katherine Heal3, Laura T Carlson2, Rhonda Morales1, Sacha Coesel2, Anitra E. Ingalls4 and Virginia Armbrust1, (1)University of Washington, School of Oceanography, Seattle, WA, United States, (2)University of Washington, School of Oceanography, Seattle, United States, (3)Pacific Northwest National Laboratories, United States, (4)University of Washington, Seattle, WA, United States
Investigation of the environmental control on the phytoplankton and bacterioplnakton in two contrasting UK estuaries (318353)
Amani ebraheem Alshatti, National Oceanography Centre, Southampton, United Kingdom
Siderophore-producing Bacteria Associated with Diatoms in the Iron-limited Southern Ocean (319748)
Alexa R Sterling1, Laura Z. Holland2, Emily J McDermith1, Kristen N Buck3, Phoebe Dreux Chappell4, Randie M Bundy5 and Bethany D. Jenkins6, (1)University of Rhode Island, Cell and Molecular Biology, Kingston, RI, United States, (2)University of Rhode Island, Cell and Molecular Biology and Graduate School of Oceanography, Kingston, RI, United States, (3)University of South Florida, College of Marine Science, St Petersburg, United States, (4)University of South Florida, College of Marine Science, St. Petersberg, United States, (5)University of Washington, School of Oceanography, Seattle, United States, (6)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States
Quantifying the effects of cell motility and chemotaxis on the consumption of phytoplankton-derived Nitrogen by heterotrophic bacteria using a single-cell approach (323432)
Marco Giardina1, Jean-Baptiste Raina2, Douglas R. Brumley3, Mathieu Pernice4, Steven Smriga5, Matt R Kilburn6, Eva C. Sonnenschein7, Matthias Ullrich8, Roman Stocker5, Peta L Clode9 and Justin Seymour2, (1)University of Technology Sydney, Sydney, Australia, (2)University of Technology Sydney, Sydney, NSW, Australia, (3)The University of Melbourne, School of Mathematics and Statistics, Melbourne, Australia, (4)University of Technology Sydney, Climate Change Cluster C3, Ultimo, Australia, (5)Swiss Federal Institute of Technology (ETH Zurich), Institute of Environmental Engineering, Zurich, Switzerland, (6)University of Western Australia, Centre for Microscopy, Characterisation and Analysis & ARC Centre of Excellence for Core to Crust Fluid Systems, Crawley, WA, Australia, (7)Technical University of Denmark, Department of Biotechnology and Biomedicine, Kgs Lyngby, Denmark, (8)Jacobs University Bremen, Molecular Life Science Research Center, Bremen, Germany, (9)University of Western Australia, CMCA, Perth, Australia

See more of: Microbiology and Molecular Ecology