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Metabolic co-dependence gives rise to collective oscillations within biofilms
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Liu, Jintao, Prindle, Arthur, Humphries, Jacqueline, Gabalda-Sagarra, Marçal, Asally, Munehiro, Lee, Dong-yeon D., Ly, San, Garcia-Ojalvo, Jordi and Süel, Gürol M. (2015) Metabolic co-dependence gives rise to collective oscillations within biofilms. Nature, 523 (7562). pp. 550-554. doi:10.1038/nature14660 ISSN 0028-0836.
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Official URL: http://dx.doi.org/10.1038/nature14660
Abstract
Cells that reside within a community can cooperate and also compete with each other for resources. It remains unclear how these opposing interactions are resolved at the population level. Here we investigate such an internal conflict within a microbial (Bacillus subtilis) biofilm community: cells in the biofilm periphery not only protect interior cells from external attack but also starve them through nutrient consumption. We discover that this conflict between protection and starvation is resolved through emergence of long-range metabolic co-dependence between peripheral and interior cells. As a result, biofilm growth halts periodically, increasing nutrient availability for the sheltered interior cells. We show that this collective oscillation in biofilm growth benefits the community in the event of a chemical attack. These findings indicate that oscillations support population-level conflict resolution by coordinating competing metabolic demands in space and time, suggesting new strategies to control biofilm growth.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Subjects: | Q Science > QR Microbiology > QR355 Virology | ||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||||||
| Library of Congress Subject Headings (LCSH): | Biofilms, Cells, Bacillus subtilis | ||||||||
| Journal or Publication Title: | Nature | ||||||||
| Publisher: | Nature Publishing | ||||||||
| ISSN: | 0028-0836 | ||||||||
| Official Date: | 22 July 2015 | ||||||||
| Dates: |
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| Volume: | 523 | ||||||||
| Number: | 7562 | ||||||||
| Page Range: | pp. 550-554 | ||||||||
| DOI: | 10.1038/nature14660 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Date of first compliant deposit: | 30 December 2015 | ||||||||
| Date of first compliant Open Access: | 30 January 2016 | ||||||||
| Funder: | National Institutes of Health (U.S.) (NIH), National Institute of General Medical Sciences (U.S.) (NIGMS), National Science Foundation (U.S.) (NSF) | ||||||||
| Grant number: | R01 GM088428, MCB-1450867 |
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