Biology Faculty Articles
Document Type
Article
Publication Date
3-27-2017
Publication Title
Scientific Reports
ISSN
2045-2322
Volume
7
Issue/No.
440
First Page
1
Last Page
13
Abstract
Cooperation is fundamental to the survival of many bacterial species. Previous studies have shown that spatial structure can both promote and suppress cooperation. Most environments where bacteria are found are periodically disturbed, which can affect the spatial structure of the population. Despite the important role that spatial disturbances play in maintaining ecological relationships, it remains unclear as to how periodic spatial disturbances affect bacteria dependent on cooperation for survival. Here, we use bacteria engineered with a strong Allee effect to investigate how the frequency of periodic spatial disturbances affects cooperation. We show that at intermediate frequencies of spatial disturbance, the ability of the bacterial population to cooperate is perturbed. A mathematical model demonstrates that periodic spatial disturbance leads to a tradeoff between accessing an autoinducer and accessing nutrients, which determines the ability of the bacteria to cooperate. Based on this relationship, we alter the ability of the bacteria to access an autoinducer. We show that increased access to an autoinducer can enhance cooperation, but can also reduce ecological resistance, defined as the ability of a population to resist changes due to disturbance. Our results may have implications in maintaining stability of microbial communities and in the treatment of infectious diseases.
NSUWorks Citation
Wilson, Cortney E.; Allison J. Lopatkin; Travis J. A. Craddock; William W. Driscoll; Omar T. Eldakar; Jose V. Lopez; and Robert P. Smith. 2017. "Cooperation and Competition Shape Ecological Resistance During Periodic Spatial Disturbance of Engineered Bacteria." Scientific Reports 7, (440): 1-13. doi:10.1038/s41598-017-00588-9.
ORCID ID
0000-0002-4807-4979
DOI
10.1038/s41598-017-00588-9
Comments
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