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