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. 2015 Aug 27;6:648. doi: 10.3389/fpls.2015.00648

FIGURE 1.

FIGURE 1

Circadian regulation of (A-D) cold, (E-H) heat, (I-L) drought and (M-P) osmoticum-responsive genes in Arabidopsis. Histograms show the timing of peak mRNA levels in 12L12D or following transfer to constant light, for the 50 most significantly stress-induced (up) or repressed (down) genes that also exhibit circadian regulation. Lists of stress-responsive genes were based on the following datasets: 24 h at 0°C (Lee et al., 2005), 3 h of at 38°C (Barah et al., 2013), water limitation for 4 days (Wilkins et al., 2010), and growth on 300 mM mannitol (Kilian et al., 2007). Phase data for Arabidopsis genes were obtained from experiments LDHH-Stitt and LL12 in the Diurnal database (Blasing et al., 2005; Mockler et al., 2007; Covington et al., 2008). Solid white and black bars indicate intervals of light and darkness, respectively, whereas hatched bars indicate subjective nights.