PP24A:
All Microorganisms Must Die: Mechanisms of Mortality in the Planktonic Environment Posters


Session ID#: 9383

Session Description:
Processes that either promote growth or cause mortality drive the abundance of all organisms. As planktonic organisms are the central currency in the flow of material and nutrients throughout the marine environment, even small shifts in growth and mortality rates can have large-scale implications for ecosystem structure and biogeochemical cycling. While much is known about processes that influence growth in the planktonic environment, little is known regarding the regulation of mortality. This interdisciplinary session invites studies that investigate mechanisms of mortality in marine microorganisms (e.g. consumption, viral lysis, programmed cell death, allelopathy). Integrative approaches that connect scales of mortality, from single-cells to the ecosystem level are encouraged. This session will cover a broad range of topics including: mechanisms and rates of mortality, targeted studies of mortality in model culture systems, direct and indirect consequences of stress on mortality, comparing competing modes of mortality, quantifying the consequences of mortality, and modeling efforts.
Primary Chair:  Elizabeth Harvey, Skidaway Institute of Oceanography at the University of Georgia, Marine Sciences, Savannah, GA, United States
Chair:  Matthew D Johnson, Woods Hole Oceanographic Institution, Biology Department, Woods Hole, MA, United States
Moderators:  Elizabeth Harvey, Skidaway Institute of Oceanography at the University of Georgia, Marine Sciences, Savannah, GA, United States and Matthew D Johnson, Woods Hole Oceanographic Institution, Biology, Woods Hole, MA, United States
Student Paper Review Liaison:  Matthew D Johnson, Woods Hole Oceanographic Institution, Biology, Woods Hole, MA, United States
Index Terms:

4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4840 Microbiology and microbial ecology [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4855 Phytoplankton [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Co-Sponsor(s):
  • ME - Marine Ecosystems
  • MM - Microbiology and Molecular Biology

Abstracts Submitted to this Session:

 
PP24A-0542
Mingled Mortality: the Interplay Between Protist Grazing and Viral Lysis on Emiliania huxleyi Cell Fate (87496)
Elizabeth Harvey, Skidaway Institute of Oceanography at the University of Georgia, Marine Sciences, Savannah, GA, United States, Kay D Bidle, Rutgers University, Marine and Coastal Sciences, New Brunswick, NJ, United States and Matthew D Johnson, Woods Hole Oceanographic Institution, Biology Department, Woods Hole, MA, United States
 
PP24A-0543
Bacterial Infochemicals are Drivers of Algal Lysis (87643)
Kristen Whalen1, Robert Deering2, David C Rowley2, Abrahim El Gamal3, Michelle Schorn3, Bradley S Moore3, Matthew D Johnson4, Tracy J Mincer1 and Elizabeth Harvey5, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)University of Rhode Island, Department of Biomedical and Pharmaceutical Sciences, Kingston, RI, United States, (3)Scripps Institution of Oceanography, La Jolla, CA, United States, (4)Woods Hole Oceanographic Institution, Biology Department, Woods Hole, MA, United States, (5)Skidaway Institute of Oceanography at the University of Georgia, Marine Sciences, Savannah, GA, United States
 
PP24A-0544
Physiological Responses of Oxyrrhis marina to the Altered Fatty Acid Composition of Virally Infected Emiliania huxleyi (87926)
Andrew Goode1,2, David Fields3 and Joaquin Martinez-Martinez3, (1)Student, Bigelow Laboratory for Ocean Sciences, East Boothbay, ME, United States, (2)Student, University of Maine School of Marine Sciences, Orono, ME, United States, (3)Bigelow Laboratory for Ocean Sciences, East Boothbay, ME, United States
 
PP24A-0545
Where Do All the Phytoplankton Go? Challenges in Keeping Track of Viable Cells in Phytoplankton Communities Using Flow Cytometry and Cell Staining (88304)
Lauren J Simmons1, Debra Jo Fobbe1 and John Alexander Berges2, (1)University of Wisconsin Milwaukee, Biological Sciences, Milwaukee, WI, United States, (2)University of Wisconsin-Milwaukee, Department of Biological Sciences and School of Freshwater Sciences, Milwaukee, WI, United States
 
PP24A-0546
Microbial Mortality Rates in Support of Model Development in Three Distinct Ocean Regimes (88877)
Paige Elizabeth Connell1, Alyssa G Gellene1, Victoria Campbell2, Sarah K Hu1, Kevin R Arrigo3 and David A Caron1, (1)University of Southern California, Biological Sciences, Los Angeles, CA, United States, (2)University of Washington, Seattle, WA, United States, (3)Stanford University, Earth System Science, Stanford, CA, United States
 
PP24A-0547
Contribution of Cell Mortality to the Decline of a Toxic Dinoflagellate Bloom (90183)
Deana Erdner1, Chang Jae Choi2, Michael Brosnahan3, Taylor Sehein4 and Donald M Anderson3, (1)University of Texas, Marine Science Institute, Port Aransas, TX, United States, (2)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (3)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (4)Woods Hole Oceanographic Institution, Biology, Woods Hole, MA, United States
 
PP24A-0548
Growth and Mortality of Coccolithophores during spring in the Celtic Sea (91431)
Kyle Mayers1, Alex J Poulton2, Sari Lou Carolin Giering2, Chris James Daniels3, Seona R Wells4 and Glen Tarran5, (1)University of Southampton, Ocean & Earth Sciences, Southampton, United Kingdom, (2)National Oceanography Centre Southampton, Ocean Biogeochemistry and Ecosytems, Southampton, United Kingdom, (3)National Oceanography Centre, OBE, Southampton, United Kingdom, (4)University of Aberdeen, United Kingdom, (5)Plymouth Marine Laboratory, Plymouth, United Kingdom
 
PP24A-0549
Shared Roles of Halobacteriovorax and Viruses in Bacterial Mortality: The Environment Dictates the Winner (91564)
Huan Chen, National High Magnetic Field Laboratory, Tallahassee, FL, United States, Edward A. Laws, Louisiana State University, School of the Coast & Environment, Baton Rouge, LA, United States, Paul A Gulig, University of Florida, Department of Molecular Genetics and Microbiology, Gainesville, FL, United States, Timkhite-Kulu Berhane, University of Tennessee, Graduate School of Genome Science and Technology, Knoxville, TN, United States, Julio L Martin, College of Central Florida, FL, United States and Henry Williams, Florida A&M University, School of the Environment, Tallahassee, FL, United States
 
PP24A-0550
All Microorganisms Must Die, But How Many Get Lysed By Viruses? - Approaches to Assessing the Significance of Nano-Sized Agents of Mortality Among Communities of Phytoplankton (91968)
Debra Jo Fobbe1, Lauren J Simmons1 and John Alexander Berges2, (1)University of Wisconsin Milwaukee, Biological Sciences, Milwaukee, WI, United States, (2)University of Wisconsin-Milwaukee, Department of Biological Sciences and School of Freshwater Sciences, Milwaukee, WI, United States
 
PP24A-0552
The Role of Cell Morphotype in Protist Grazing on the Model Diatom Phaeodactylum tricornutum (93298)
David Beaudoin1, Matthew D Johnson1, Leila Tirichine2, Achal Rastogi2 and Chris Bowler3, (1)Woods Hole Oceanographic Institution, Biology, Woods Hole, MA, United States, (2)Institut de Biologie de l’Ecole Normale Supérieure (IBENS), Environmental and Evolutionary Genomics Section, Paris, France, (3)Institut de Biologie de l’Ecole Normale Supérieure (IBENS), Ecology and Evolutionary Biology, Paris, France
 
PP24A-0553
Response of the Predatory Bacterium, Halobacteriovorax, and Virus to an Influx of a Prey Bacterium in a Natural Water Microcosm and a Three Membered Artificial Sea Water Microcosm. (93766)
Henry Williams, Florida A&M University, School of the Environment, Tallahassee, FL, United States, Huan Chen, National High Magnetic Field Laboratory, Tallahassee, FL, United States, Edward A. Laws, Louisiana State University, School of the Coast & Environment, Baton Rouge, LA, United States and Paul A Gulig, University of Florida, Department of Molecular Genetics and Microbiology, Gainesville, FL, United States
 
PP24A-0554
Phytoplankton and microzooplankton growth and grazing dynamics in Kaneohe Bay, Hawaii, a subtropical estuarine coastal embayment (93856)
Karen E Selph1, Mchelle Jungbluth1, Erica Goetze1, Stephanie Chang1, Michelle Uchida2 and Galiel Kolker1, (1)University of Hawaii at Manoa, Oceanography, Honolulu, HI, United States, (2)University of Hawaii at Hilo, Hilo, HI, United States
See more of: Phytoplankton and Primary Production