Classic experiments suggested that a floral stimulus Florigen could move across a graft from an induced plant to a noninduced plant and trigger flowering. Recent evidence using Arabidopsis has recently shown that florigen is probably

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Recent evidence using Arabidopsis has shown that florigen is a protein that is synthesized in leaves and travels to the shoot apical meristem where it initiates flowering. This mechanism involves the activation of a gene called FT (Flowering Locus T) in leaves by a transcription factor called FD, which allows the production of the florigen protein. The florigen protein then moves through the phloem to the shoot apical meristem where it interacts with a receptor called FLOWERING LOCUS T1 (FT1) to promote flowering.

Classic Experiments Suggested That a Floral Stimulus Florigen Could Move