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Florigen: One Found, More to Follow?
Article first published online: 7 JUN 2006
DOI: 10.1111/j.1744-7909.2006.00309.x
Additional Information
How to Cite
Yu, X., Klejnot, J. and Lin, C. (2006), Florigen: One Found, More to Follow?. Journal of Integrative Plant Biology, 48: 617–621. doi: 10.1111/j.1744-7909.2006.00309.x
Publication History
- Issue published online: 7 JUN 2006
- Article first published online: 7 JUN 2006
- Received 22 Mar. 2006 Accepted 22 Mar. 2006
- Abstract
- References
- Cited By
Keywords:
- florigen;
- photoperiod;
- flowering;
- Arabidopsis;
- light
Abstract
Florigen(s) are molecules that are synthesized in response to appropriate photoperiods and transmitted from leaves to shoot apices to promote floral initiation. It has been recently discovered in Arabidopsis that mRNA of the FT gene acts as a florigen. In Arabidopsis, cryptochromes and phytochromes mediate long-day promotion of CO protein expression, which activates FT mRNA expression in leaves. FT mRNA is transmitted to the shoot apex, where it acts together with FD to activate transcription of floral meristem identity genes, resulting in floral initiation. The discovery of the molecular nature of a florigen was a major scientific breakthrough in 2005.
(Managing editor: Li-Hui Zhao)