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| BO05: | Understanding Diatom Interactions with Their Environment: From Single Molecules to Global Ecosystems |
| Sponsor: |
Biological Oceanography
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| Convener: |
Adrian Marchetti University of Washington Box 357940 Seattle, WA, USA 206-685-4196 amarchetti@ocean.washington.edu Micaela S Parker University of Washington Box 357940 Seattle, WA, USA 206-221-7841 micaela@u.washington.edu Francois Ribalet University of Washington Box 357940 Seattle, WA, USA 206-685-4196 ribalet@u.washington.edu John A. Berges University of Wisconsin Milwaukee PO Box 413 Milwaukee, WI, USA 414-229-3258 berges@uwm.edu |
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0410 0414 0439 0465 .
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| Description: | Diatoms are one of the most diverse groups of organisms on Earth and are estimated to account for approximately 20% of global primary production. Their complex evolutionary history allowed unique combinations of metabolic and structural capabilities to function in a single cell. Through their nutrient requirements, diatoms are influenced by the chemistry of their environment and, in turn, influence aquatic biogeochemistry. Diatoms produce a variety of different, often unique, molecules that are released into the environment, some involved in sophisticated signaling systems for the perception of biotic and abiotic stresses. These attributes have enabled diatoms to inhabit virtually every aquatic system and dominate in the most productive ones. Blooms of diatoms can be easily observed by satellites and their cell walls can accumulate and be preserved in the sediments, potentially providing a historical record of their growth conditions. In this session we will highlight new findings in diatoms and diatom-dominated aquatic systems, incorporating molecular, biochemical, physiological, paleo- and contemporary ecological and/or biogeochemical approaches. The aim of this session is to bring together a diverse group of scientists from across different disciplines who are all interested in understanding the important roles diatoms play within our planet’s biosphere and how they will be affected by future climate change. |