User talk:ElizabethKaye85/sandbox

These are my suggestions for the Nyctanisty page

Plants utilize the photoreceptor phytochrome to direct physiological responses in the plant. In the process known as dark reversion, light absorption in the plant switches from Pfr (Phytochrome Far-red) to Pr (Phytochrome Red) during the nocturnal portion of a diurnal circadian cycle. This change in phenotype by the plant via photoperiodism are regulated by an internal clock and overseen by the phytochrome system which influence the opening and closing of leaves associated with nyctastic movements. Anatomically, the nyctastic movements are mediated by pulvini.