florigen

American  

[flawr-i-juhn, flohr-] / ˈflɔr ɪ dʒən, ˈfloʊr- /

noun

1. a hypothetical plant hormone produced in the leaves and transported to the apex to initiate flowering.

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florigen British  

/ ˈflɒrɪdʒən /

noun

1. the hypothetical plant hormone that induces flowering, thought to be synthesized in the leaves as a photoperiodic response and transmitted to the flower buds

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Other Word Forms

• florigenic adjective

Etymology

Origin of florigen

C20: from Latin flōr-, flōs _flower + _-gen

Example Sentences

Heat triggers a hormone called florigen that makes the jacaranda trees flower, North explains.

From Los Angeles Times

That job also is performed by signaling proteins, florigen’s messengers so to speak.

From Los Angeles Times

Florigen travels from the leaves through the tree’s circulatory system to deliver the “go” signal to buds that have been waiting in the wings since last summer.

From Los Angeles Times

How florigen stimulates the process of making a flower is “still an active research field,” says Lawren Sack, professor of ecology and evolutionary biology at UCLA.

From Los Angeles Times

This hybrid, the team found, produced greater yields because there was one normal copy and one mutated copy of a single gene that produces a protein called florigen.

From US News