Figure 1. Nicotinamide lengthens the period of circadian rhythms
(a) Mean Y pixel positions of leaves of Col-0 in constant light (60 – 80 µmol m-1 s-1) with or without two 50 mM nicotinamide treatments one and two days before imaging. (b) Individual FFT-NLLS period estimates and RAE values for circadian rhythms of leaf movement, data combined from separate experiments, untreated nrhy = 218, nicotinamide treated nrhy = 292 (c) Rhythms of CCA1:LUC luminescence in constant light. Seedling clusters were dosed with 50 µl 5 mM luciferin plus or minus nicotinamide every 12 hours, The points represent mean of nrhy = 4 for each treatment. Error bars represent standard deviation. Nrhy = the number of rhythmic plants as estimated by FFT NLS