Evolution of Nutrient Colimitation in Microbial Communities

Feb 20 2023
Expired!
1:00 pm - 2:00 pm

Location

Center for Advanced Biotechnology and Medicine, Room 010
679 Hoes Lane West. Piscataway, NJ 08854
Zoom Access

Seminar Format: Hybrid (Zoom Access)

Speaker: Michael Manhart, Rutgers University

origins and evolution of life. enigma.rutgers.edu Spring 2023 Enigma Seminar Series Michael Manhart Assistant Professor, Center for Advanced Biotechnology & Medicine Rutgers University Monday, February 20th, 1:00-2:00pm EST Hybrid: Hosted on Zoom and at Rutgers Center for Advanced Biotechnology and Medicine (CABM), Rm 010, 679 Hoes Lane West, Busch Campus Evolution of Nutrient Colimitation in Microbial Communities Microbial growth relies on the presence of several nutrients, including elemental nutrients such as carbon and nitrogen, as well as complex nutrients like vitamins and amino acids. Evidence from biogeochemistry, especially in aquatic environments, suggests that multiple nutrients may be simultaneously rare in nature and therefore limit growth. However, we poorly understand how this colimitation affects microbial growth, physiology, and evolution. This is especially important in the context of multi-species communities, where pervasive cross-feeding of many nutrients leads to the coevolution of nutrient limitation between species. We introduce a theoretical framework for understanding and quantifying nutrient limitation, which we apply to an evolutionary model to show how limitation for multiple nutrients evolves. We find that evolution can spontaneously drive nutrient uptake to match environmental availability, leading to colimitation of multiple nutrients. We show how this result depends on the interaction between nutrients and supply of adaptive mutations. In particular, we demonstrate how nutrient limitation coevolves across species in cross-feeding communities. This prediction is consistent with observed correspondences between the elemental composition of microbes and their environments. It suggests that colimitation may be a generic property of microbial communities due to evolutionary forces

Feb 20 2023
Expired!
1:00 pm - 2:00 pm

Organizer

Rutgers E·Nig·Ma
Website
https://enigma.rutgers.edu/
Zoom Access

Location

Center for Advanced Biotechnology and Medicine, Room 010
679 Hoes Lane West. Piscataway, NJ 08854
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