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. 2021 Apr 22;10:e64176. doi: 10.7554/eLife.64176

Appendix 1—figure 1. Comparisons of vortex order parameter (VOP) under confinement and swarm front among several species of bacteria.

Appendix 1—figure 1.

(A) VOP of concentrated planktonic and swarming Enterobacter sp. SM1, Citrobacter koseri (H6), Serratia marcescens (H3), Serratia marcescens (Db10), and Bacillus subtilis 3610 confined in the PDMS microwells of 58 μm in diameter and 22 μm in depth. The bars indicate averages with standard deviation (+ SD) over five microwells. (B) Swarm front of the tested bacteria. B. subtilis 3610 forms a monolayer, loose swarming colony whereas all the other bacterial strains form multilayer, compact swarming colonies.