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florigen

[ flawr-i-juhn, flohr- ]

noun

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


florigen

/ 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
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Other Words From

  • flori·genic adjective
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Word History and Origins

Origin of florigen1

C20: from Latin flōr-, flōs flower + -gen
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Example Sentences

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

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.

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

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.

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

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floriferousflorilegium