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. Author manuscript; available in PMC: 2021 May 30.
Published in final edited form as: Science. 2016 Apr 29;352(6285):604–607. doi: 10.1126/science.aac8167

Fig. 1. Detailed balance and actively beating Chlamydomonas flagella.

Fig. 1.

(A) In thermodynamic equilibrium, transitions between microscopic states are pairwise-balanced, precluding net flux among states. (B) Nonequilibrium steady states can break detailed balance and exhibit flux loops. (C) Snapshots separated by 24 (orange-yellow), 7, and 10 ms in an isolated Chlamydomonas flagellum’s beat cycle (movie S1). Arrows on the central circle indicate the direction of time. Color corresponds to position in (E). (D) The first three bending modes for a freely suspended flexible rod. (E) A three-dimensional (3D) probability flux map of flagellar dynamics in the CGPS spanned by the first three modes. (F and G) Probability distribution (color) and flux map (white arrows) of flagellar dynamics in CGPS spanned by first and second modes (F), and first and third modes (G). The white legend indicates the flux scale.