Project Grant 2149071
- This $262,492 National Science Foundation project grant supports collaborative research on adaptations of Southern Ocean diatoms to manganese scarcity. The awardee, University of Hawaii at Manoa, will work with early career investigators to explore manganese limitation in Antarctic diatoms through culture experiments with three Antarctic and one temperate diatom species. Using physiological, transcriptomic, and biochemical approaches, the investigators will address their central hypothesis...
- This $379,674 National Science Foundation Division of Polar Programs project grant will fund research into mixotrophic grazing strategies of Antarctic plankton as a means to meet nutritional needs in iron- and manganese-deficient conditions of the Southern Ocean. The University of Georgia Research Foundation, Inc. will conduct culture studies of microalgal isolates from the Southern Ocean to measure growth responses, consumption behavior, and cellular changes in iron and manganese limitation....
- This Project Grant from the National Science Foundation Division of Polar Programs, under the Polar Programs federal grant program (CFDA 47.078), provides $175,853 to support research examining mixotrophic grazing as a strategy for Antarctic plankton to meet nutritional requirements under iron and manganese deficiency conditions. The award to the Virginia Institute of Marine Science will fund one graduate student, two undergraduate summer interns, and two early career scientists to conduct...
- This National Science Foundation (NSF) Geosciences program award, CFDA 47.050, provides $437,806 to the Regents of the University of Minnesota, Office of Sponsored Projects Administration, to conduct collaborative research on the molecular speciation of trace elements like iron, copper, zinc, and manganese in the Southern Ocean and Antarctic continental shelf. The research aims to identify the organic ligands that bind to these biologically essential metals, and determine their sources and...
- This Project Grant award, funded by the National Science Foundation's (NSF) Polar Programs (CFDA 47.078), aims to study how gene expression, diatom silicification, and diatom-bound nitrogen isotopes are linked in different diatom species from the Southern Ocean. The $109,669 award, which runs from June 1, 2025 to May 31, 2026, will utilize recently collected diatom samples to evaluate how varying nutrient conditions impact these factors across environmentally relevant diatom species. The...
- The National Science Foundation (NSF) Division of Ocean Sciences awarded a $298,228 Project Grant to the University of North Carolina at Chapel Hill (UNC) under the Geosciences (CFDA 47.050) federal grant program. This two-year grant funds research to investigate how marine diatoms use proton-pumping rhodopsins as an alternative energy source under conditions of high light and low iron that hinder photosynthesis. The research aims to provide insight on how diatoms, which are responsible for a...
- This Project Grant award, worth $905,118, was provided by the National Science Foundation Division of Polar Programs under CFDA Program 47.078 to the University of Rhode Island Research Office. The funding will support a collaborative research project examining how the chemistry of fossil diatoms (a type of plankton) can be used as proxies to reconstruct past changes in ocean nutrients and biological productivity, which are linked to global climate change. The research will involve field...
- This Project Grant from the National Science Foundation Division of Polar Programs, under the Polar Programs federal grant program (CFDA 47.078), provides $210,495 to support research examining how microbial extremophiles in Antarctica respond to environmental changes in salinity. Led by researchers at the University of Tennessee, the grant will fund comparative analyses of gene expression patterns and secondary metabolite production in lab microcosm studies using microbial isolates previously...
- The University of Washington was awarded a two-year, $295,699 Project Grant from the National Science Foundation Division of Polar Programs to conduct research titled "THE ROLE OF SOUTHERN OCEAN IRON LIMITED DIATOMS IN MODULATING COPPER SPECIATION." The grant is part of NSF's Polar Programs, which provides funding under Assistance Listing Number 47.078 to strengthen understanding of polar regions through basic research best conducted in or related to the Arctic and Antarctic....
- This $300,785 federal Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) supports a research project to characterize the chemical composition and bioavailability of dissolved organic matter released by marine nitrifying microorganisms. The project aims to determine how this material contributes to carbon cycling in the deep ocean, which may help improve biogeochemical models and inform potential marine carbon dioxide removal activities. The research will...
This $224,928 three-year Project Grant from the National Science Foundation Division of Polar Programs, under the Polar Programs federal grant program (CFDA 47.078), will fund collaborative research on adaptations of Southern Ocean diatoms to manganese scarcity. The University of Georgia Research Foundation will support two early career scientists and one female Earth scientist to conduct culture experiments on three Antarctic and one temperate diatom species. Using physiological, transcriptomic, and biochemical approaches, the researchers will quantify uptake rates and transporter binding constants under varying micronutrient treatments and irradiances. The results will help parameterize models of micronutrient limitation in the Southern Ocean and identify potential biomarker(s) for assessing manganese stress or zinc toxicity. The research aims to further understanding of what controls productivity in the carbon-absorbing Southern Ocean and cold-environment life more broadly, in line with NSF program goals. Two graduate students will also receive support through the award.
Mod # | Description | ReasonForModification | Federal Obligation | Date |
|---|---|---|---|---|
| Not listed | $224.9k | 1/31/23 |