Genetic manipulation of structural color in bacterial colonies

Villads Egede Johansen, Laura Catón, Raditijo Hamidjaja, Els Oosterink, Bodo D. Wilts, Torben Sølbeck Rasmussen, Michael Mario Sherlock, Colin J. Ingham, Silvia Vignolini*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Naturally occurring photonic structures are responsible for the bright and vivid coloration in a large variety of living organisms. Despite efforts to understand their biological functions, development, and complex optical response, little is known of the underlying genes involved in the development of these nanostructures in any domain of life. Here, we used Flavobacterium colonies as a model system to demonstrate that genes responsible for gliding motility, cell shape, the stringent response, and tRNA modification contribute to the optical appearance of the colony. By structural and optical analysis, we obtained a detailed correlation of how genetic modifications alter structural color in bacterial colonies. Understanding of genotype and phenotype relations in this system opens the way to genetic engineering of on-demand living optical materials, for use as paints and living sensors.
Original languageEnglish
JournalProceedings of the National Academy of Sciences of the United States of America
Volume115
Issue number11
Pages (from-to)2652-2657
ISSN0027-8424
DOIs
Publication statusPublished - 2018

Keywords

  • Flavobacteria
  • Disorder
  • genetics
  • Self-organization
  • Structural color

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