2017
DOI: 10.1038/s41467-017-01683-1
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Shaping bacterial population behavior through computer-interfaced control of individual cells

Abstract: Bacteria in groups vary individually, and interact with other bacteria and the environment to produce population-level patterns of gene expression. Investigating such behavior in detail requires measuring and controlling populations at the single-cell level alongside precisely specified interactions and environmental characteristics. Here we present an automated, programmable platform that combines image-based gene expression and growth measurements with on-line optogenetic expression control for hundreds of i… Show more

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Cited by 103 publications
(152 citation statements)
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“…CcaSR v 2.0 exhibits 17 times less leakiness than v 1.0, and 117‐fold activation . We recently combined CcaSR v 2.0 with an engineered red light sensor to program two gene expression signals simultaneously and independently, whereas Guet and co‐workers used it to extend in silico control of gene expression to the single‐cell level …”
Section: Figurementioning
confidence: 99%
“…CcaSR v 2.0 exhibits 17 times less leakiness than v 1.0, and 117‐fold activation . We recently combined CcaSR v 2.0 with an engineered red light sensor to program two gene expression signals simultaneously and independently, whereas Guet and co‐workers used it to extend in silico control of gene expression to the single‐cell level …”
Section: Figurementioning
confidence: 99%
“…1A). This experimental set up has been widely adopted as a popular standard for long-term, single-cell time-lapse imaging of bacteria such as E. coli [5][6][7][8], Bacillus subtilis [6,9], and Corynebacterium glutamicum [10]. Unfortunately, analysis of raw single-cell microscopy images remains a major bottleneck despite major efforts in this area.…”
Section: Introductionmentioning
confidence: 99%
“…As an example, a small number of recent studies have highlighted the potential of computerbased feedback control of gene expression in single cells as a new experimental paradigm [8,20,21]. This approach automatically adjusts chemical or optogenetic inputs based on real-time quantification of gene expression levels in cells to precisely and dynamically perturb regulatory networks.…”
Section: Introductionmentioning
confidence: 99%
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“…We implemented cell-in-the-loop using optogenetics, which have been shown to afford excellent spatiotemporal precision in applications including feedback control [33] [34] [35] [36] and oscillatory synchronization [37]. We engineered Saccharomyces cerevisiae to respond to blue light [38] by increasing gene expression as measured by a fast-acting fluorescent reporter [39].…”
Section: Introductionmentioning
confidence: 99%