出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/05/31 22:32 UTC 版)
Florigen (or flowering hormone) is the term used to describe the hypothesized hormone-like molecules responsible for controlling and/or triggering flowering in plants. Florigen is produced in the leaves and acts in the shoot apical meristem of buds and growing tips. It is known to be graft-transmissible and even functions between species. However, despite having been sought since the 1930s, the exact nature of florigen is still a mystery.