title: Photoperiodism: the coincidental perception of the season.
abstract: Many plants use the seasonal change in daylength as a signal for flowering. Daylength sensing in Arabidopsis has now been shown to occur by an external coincidence mechanism, which operates by the circadian and light regulation of CONSTANS.
authors.affiliation: Department of Plant Development Biology, Max Planck Institute for Plant Breeding Research, Carl-von-Linne-Weg 10, Cologne 50829, Germany. davis@mpiz-koeln.mpg.de
authors.forename: Seth J
authors.initials: SJ
authors.lastname: Davis
mesh_terms: D017360:Arabidopsis / Q000235:genetics / Q000502:physiology*; D029681:Arabidopsis Proteins / Q000502:physiology*; D002940:Circadian Rhythm; D004268:DNA-Binding Proteins / Q000502:physiology*; D018506:Gene Expression Regulation, Plant; D017440:Photoperiod; D012621:Seasons; D014157:Transcription Factors / Q000502:physiology*
chemical_list: D029681:Arabidopsis Proteins; C092776:CONSTANS protein, Arabidopsis; D004268:DNA-Binding Proteins; D014157:Transcription Factors