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. 2010 Nov 11;6(11):e1000990. doi: 10.1371/journal.pcbi.1000990

Figure 8. Response of clock models to fluctuating daylight intensity.

Figure 8

(A) Light intensity varying randomly from day to day. The time evolution of TOC1 concentration is shown for: (B), (C) the permanently coupled clock model of Fig. 2(A) at two different fluctuation levels, which are quantified by parameter Inline graphic (see Methods); (D) the clock model used in Fig. 3(A)–(C); (E) the clock model used in Fig. 3(D)–(F). When the clock operates nominally, numerical solutions (in black) and experimental time profiles (in gray) superimpose.