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Bacterial metapopulations in nanofabricated landscapes

Title
Bacterial metapopulations in nanofabricated landscapes
Authors
Keymer J.E.Galajda P.Muldoon C.Park S.Austin R.H.
Ewha Authors
박성수
Issue Date
2006
Journal Title
Proceedings of the National Academy of Sciences of the United States of America
ISSN
0027-8424JCR Link
Citation
vol. 103, no. 46, pp. 17290 - 17295
Indexed
SCI; SCIE; SCOPUS scopus
Abstract
We have constructed a linear array of coupled, microscale patches of habitat. When bacteria are inoculated into this habitat landscape, a metapopulation emerges. Local bacterial populations in each patch coexist and weakly couple with neighbor populations in nearby patches. These spatially distributed bacterial populations interact through local extinction and colonization processes. We have further built heterogeneous habitat landscapes to study the adaptive dynamics of the bacterial metapopulations. By patterning habitat differences across the landscape, our device physically implements an adaptive landscape. In landscapes with higher niche diversity, we observe rapid adaptation to large-scale, low-quality (high-stress) areas. Our results illustrate the potential lying at the interface between nanoscale biophysics and landscape evolutionary ecology. © 2006 by The National Academy of Sciences of the USA.
DOI
10.1073/pnas.0607971103
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자연과학대학 > 화학·나노과학전공 > Journal papers
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