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Interactions mediated by a public good transiently increase cooperativity in growing Pseudomonas putida metapopulations
Bacterial communities have rich social lives. A well-established interaction involves the exchange of a public good in Pseudomonas populations, where the iron-scavenging compound pyoverdine, synthesized by some cells, is shared with the rest. Pyoverdine thus mediates interactions between producers a...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5840296/ https://www.ncbi.nlm.nih.gov/pubmed/29511247 http://dx.doi.org/10.1038/s41598-018-22306-9 |
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author | Becker, Felix Wienand, Karl Lechner, Matthias Frey, Erwin Jung, Heinrich |
author_facet | Becker, Felix Wienand, Karl Lechner, Matthias Frey, Erwin Jung, Heinrich |
author_sort | Becker, Felix |
collection | PubMed |
description | Bacterial communities have rich social lives. A well-established interaction involves the exchange of a public good in Pseudomonas populations, where the iron-scavenging compound pyoverdine, synthesized by some cells, is shared with the rest. Pyoverdine thus mediates interactions between producers and non-producers and can constitute a public good. This interaction is often used to test game theoretical predictions on the “social dilemma” of producers. Such an approach, however, underestimates the impact of specific properties of the public good, for example consequences of its accumulation in the environment. Here, we experimentally quantify costs and benefits of pyoverdine production in a specific environment, and build a model of population dynamics that explicitly accounts for the changing significance of accumulating pyoverdine as chemical mediator of social interactions. The model predicts that, in an ensemble of growing populations (metapopulation) with different initial producer fractions (and consequently pyoverdine contents), the global producer fraction initially increases. Because the benefit of pyoverdine declines at saturating concentrations, the increase need only be transient. Confirmed by experiments on metapopulations, our results show how a changing benefit of a public good can shape social interactions in a bacterial population. |
format | Online Article Text |
id | pubmed-5840296 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-58402962018-03-13 Interactions mediated by a public good transiently increase cooperativity in growing Pseudomonas putida metapopulations Becker, Felix Wienand, Karl Lechner, Matthias Frey, Erwin Jung, Heinrich Sci Rep Article Bacterial communities have rich social lives. A well-established interaction involves the exchange of a public good in Pseudomonas populations, where the iron-scavenging compound pyoverdine, synthesized by some cells, is shared with the rest. Pyoverdine thus mediates interactions between producers and non-producers and can constitute a public good. This interaction is often used to test game theoretical predictions on the “social dilemma” of producers. Such an approach, however, underestimates the impact of specific properties of the public good, for example consequences of its accumulation in the environment. Here, we experimentally quantify costs and benefits of pyoverdine production in a specific environment, and build a model of population dynamics that explicitly accounts for the changing significance of accumulating pyoverdine as chemical mediator of social interactions. The model predicts that, in an ensemble of growing populations (metapopulation) with different initial producer fractions (and consequently pyoverdine contents), the global producer fraction initially increases. Because the benefit of pyoverdine declines at saturating concentrations, the increase need only be transient. Confirmed by experiments on metapopulations, our results show how a changing benefit of a public good can shape social interactions in a bacterial population. Nature Publishing Group UK 2018-03-06 /pmc/articles/PMC5840296/ /pubmed/29511247 http://dx.doi.org/10.1038/s41598-018-22306-9 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Becker, Felix Wienand, Karl Lechner, Matthias Frey, Erwin Jung, Heinrich Interactions mediated by a public good transiently increase cooperativity in growing Pseudomonas putida metapopulations |
title | Interactions mediated by a public good transiently increase cooperativity in growing Pseudomonas putida metapopulations |
title_full | Interactions mediated by a public good transiently increase cooperativity in growing Pseudomonas putida metapopulations |
title_fullStr | Interactions mediated by a public good transiently increase cooperativity in growing Pseudomonas putida metapopulations |
title_full_unstemmed | Interactions mediated by a public good transiently increase cooperativity in growing Pseudomonas putida metapopulations |
title_short | Interactions mediated by a public good transiently increase cooperativity in growing Pseudomonas putida metapopulations |
title_sort | interactions mediated by a public good transiently increase cooperativity in growing pseudomonas putida metapopulations |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5840296/ https://www.ncbi.nlm.nih.gov/pubmed/29511247 http://dx.doi.org/10.1038/s41598-018-22306-9 |
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