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Seasonal Metabolism Changes Across Redox Gradients in Photosynthetic Mats, Lake Fryxell, A — NSF Award to University of California

In the McMurdo Dry Valleys (MDV), the permanently ice-covered lakes are unusual aquatic environments that are home to unique communities of microbes. Mats of photosynthetic microbes grow on the floors of these lakes and are an important part of the ecosystems in MDV environments. They experience extreme seasonality tha

Award titleSeasonal Metabolism Changes Across Redox Gradients in Photosynthetic Mats, Lake Fryxell, A
Award ID2445119
AwardeeUniversity of California-Davis
CityDAVIS
StateCA
Amount obligated$794,401
Principal investigatorDawn Sumner
ProgramANT Organisms & Ecosystems
Start date07/15/2025
AbstractIn the McMurdo Dry Valleys (MDV), the permanently ice-covered lakes are unusual aquatic environments that are home to unique communities of microbes. Mats of photosynthetic microbes grow on the floors of these lakes and are an important part of the ecosystems in MDV environments. They experience extreme seasonality that includes the challenge of months of winter darkness. Mats cannot photosynthesize during winter, but they do remain active, and this can impact their ability to respond when sprin
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