FKF1 Conveys Timing Information for CONSTANS Stabilization in Photoperiodic Flowering
Copyright policy )FKF1 Conveys Timing Information for CONSTANS Stabilization in Photoperiodic Flowering
Spring Into Flower In spring, plants respond to increasing day length and shifts in the spectrum of solar irradiance by releasing the flowering induction pathway, which includes expression of the FLOWERING LOCUS T (FT) protein. Song et al. (p. 1045 ) have now identified a trio of controls brought to bear on FT gene expression by the FKF1 (FLAVIN-BINDING, KELCH REPEAT, F-BOX 1) protein. FKF1 removes a repressor and also stabilizes the activating CONSTANS (CO) protein in the afternoons through a binding interaction enhanced by blue light—an increasing component of solar irradiation during spring. Then FKF1 itself helps to activate transcription of the CO gene. Thus, by removing the repressor and shoring up the activator, FKF1 sets flowering on its way.
- University of Edinburgh United Kingdom
- University of Washington United States
- University of Mary United States
Light, Transcription, Genetic, Arabidopsis Proteins, Protein Stability, Photoperiod, Arabidopsis, Flowers, Plants, Genetically Modified, Models, Biological, DNA-Binding Proteins, Repressor Proteins, Gene Expression Regulation, Plant, RNA, Plant, /dk/atira/pure/subjectarea/asjc/1000, Mutation, Protein Interaction Domains and Motifs, RNA, Messenger, General, Promoter Regions, Genetic, Protein Binding, Transcription Factors
Light, Transcription, Genetic, Arabidopsis Proteins, Protein Stability, Photoperiod, Arabidopsis, Flowers, Plants, Genetically Modified, Models, Biological, DNA-Binding Proteins, Repressor Proteins, Gene Expression Regulation, Plant, RNA, Plant, /dk/atira/pure/subjectarea/asjc/1000, Mutation, Protein Interaction Domains and Motifs, RNA, Messenger, General, Promoter Regions, Genetic, Protein Binding, Transcription Factors
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