About the Authors

Brit Winnen

Affiliation Institute of Microbiology, ETH Zürich, Zürich, Switzerland

Markus C. Schlumberger

Affiliation Institute of Microbiology, ETH Zürich, Zürich, Switzerland

Alexander Sturm

Affiliation Institute of Microbiology, ETH Zürich, Zürich, Switzerland

Kaspar Schüpbach

Affiliation Institute of Fluid Dynamics, ETH Zürich, Zürich, Switzerland

Stefan Siebenmann

Affiliation Institute of Fluid Dynamics, ETH Zürich, Zürich, Switzerland

Patrick Jenny

Affiliation Institute of Fluid Dynamics, ETH Zürich, Zürich, Switzerland

Wolf-Dietrich Hardt

hardt@micro.biol.ethz.ch

Affiliation Institute of Microbiology, ETH Zürich, Zürich, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: WH BW SS MS PJ AS KS. Performed the experiments: BW AS. Analyzed the data: WH BW MS. Contributed reagents/materials/analysis tools: SS MS PJ AS KS. Wrote the paper: WH BW MS. Other: Designed the simulation program: SS PJ KS.