Department Seminar - Naomi Levine

Apr 30, 2024, 12:30 pm1:20 pm
Guyot Hall 10
All Welcome



Event Description

Marine microbes are the engines that drive biogeochemical cycling in the oceans thus playing a critical role in the climate. Specifically, both the production and the consumption rates of organic carbon are set by the interaction between diverse microbial communities and the chemical and physical environments in which they reside. Modeling these dynamics requires reducing the complexity of microbial communities and linking directly with biogeochemical functions. Microbial metabolic functional guilds provide one approach for reducing microbial complexity and incorporating microbial biogeochemical functions into models. However, defining these guilds can be challenging especially for heterotrophic microbes. We have been using a range of cellular-scale models to both assist in defining metabolic functional guilds from annotated genomes and to help understand the mechanistic basis behind trait trade-offs. These models can relate directly to 'omic measurements for validation and hypothesis generation. They also provide a means for coarse-graining microbial dynamics for incorporation into larger-scale biogeochemical models. The use of pipelines that leverage multiple modeling approaches provides a path forward for bridging from the cellular to ecosystem scale and thus provide new insight into the role that microbial communities play in setting rates of carbon cycling.

Host: Prof. Bess Ward

Lunch served at 11:45 a.m. for those attending the seminar.

Geosciences, AOS

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