florigen


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florigen

a hypothetical plant hormone that may be produced in leaves after suitable light treatment (see PHOTOPERIODISM), and moves to the buds to stimulate flowering.
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They found that bushy plants with a mutation in one of the two copies of the florigen gene, producing half as much florigen as plants without the mutation do, postpone the moment when they stop producing flowers.
Since this pioneering work, there has been a considerable amount of research conducted to identify this signal, which has been called Florigen (flowering hormone); however, there has been little success.
Aukerman M, Amasino R (1998) Floral induction and florigen.