Emergent cooperation in microbial metabolism

Mixed microbial communities exhibit emergent biochemical properties not found in clonal monocultures. We report a new type of synthetic genetic interaction, synthetic mutualism in trans (SMIT), in which certain pairs of auxotrophic Escherichia coli mutants complement one another's growth by cro...

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Main Authors: Edwin H Wintermute, Pamela A Silver
Format: Article
Language:English
Published: Springer Nature 2010-01-01
Series:Molecular Systems Biology
Subjects:
Online Access:https://doi.org/10.1038/msb.2010.66
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author Edwin H Wintermute
Pamela A Silver
author_facet Edwin H Wintermute
Pamela A Silver
author_sort Edwin H Wintermute
collection DOAJ
description Mixed microbial communities exhibit emergent biochemical properties not found in clonal monocultures. We report a new type of synthetic genetic interaction, synthetic mutualism in trans (SMIT), in which certain pairs of auxotrophic Escherichia coli mutants complement one another's growth by cross‐feeding essential metabolites. We find significant metabolic synergy in 17% of 1035 such pairs tested, with SMIT partners identified throughout the metabolic network. Cooperative phenotypes show more growth on average by aiding the proliferation of their conjugate partner, thereby expanding the source of their own essential metabolites. We construct a quantitative, predictive, framework for describing SMIT interactions as governed by stoichiometric models of the metabolic networks of the interacting strains.
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spelling doaj.art-2af4890edb3c401799b1fb70ee21be612024-03-03T03:11:51ZengSpringer NatureMolecular Systems Biology1744-42922010-01-0161n/an/a10.1038/msb.2010.66Emergent cooperation in microbial metabolismEdwin H Wintermute0Pamela A Silver1Department of Systems Biology, Harvard Medical School Boston MA USADepartment of Systems Biology, Harvard Medical School Boston MA USAMixed microbial communities exhibit emergent biochemical properties not found in clonal monocultures. We report a new type of synthetic genetic interaction, synthetic mutualism in trans (SMIT), in which certain pairs of auxotrophic Escherichia coli mutants complement one another's growth by cross‐feeding essential metabolites. We find significant metabolic synergy in 17% of 1035 such pairs tested, with SMIT partners identified throughout the metabolic network. Cooperative phenotypes show more growth on average by aiding the proliferation of their conjugate partner, thereby expanding the source of their own essential metabolites. We construct a quantitative, predictive, framework for describing SMIT interactions as governed by stoichiometric models of the metabolic networks of the interacting strains.https://doi.org/10.1038/msb.2010.66cooperationco‐cultureflux balance analysismetabolismmutualism
spellingShingle Edwin H Wintermute
Pamela A Silver
Emergent cooperation in microbial metabolism
Molecular Systems Biology
cooperation
co‐culture
flux balance analysis
metabolism
mutualism
title Emergent cooperation in microbial metabolism
title_full Emergent cooperation in microbial metabolism
title_fullStr Emergent cooperation in microbial metabolism
title_full_unstemmed Emergent cooperation in microbial metabolism
title_short Emergent cooperation in microbial metabolism
title_sort emergent cooperation in microbial metabolism
topic cooperation
co‐culture
flux balance analysis
metabolism
mutualism
url https://doi.org/10.1038/msb.2010.66
work_keys_str_mv AT edwinhwintermute emergentcooperationinmicrobialmetabolism
AT pamelaasilver emergentcooperationinmicrobialmetabolism