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Trends Plant Sci. 2006 Nov;11(11):550-8. Epub 2006 Oct 10.

Photoperiodic control of flowering: not only by coincidence.

Author information

1
Department of Biochemistry, The Scripps Research Institute, La Jolla, CA 92037, USA.

Erratum in

  • Trends Plant Sci. 2006 Dec;11(12):567.

Abstract

The timing of floral transition has a direct impact on reproductive success. One of the most important environmental factors that affect the transition is the change in day length (photoperiod). Classical experiments imply that plants monitor photoperiods in the leaf, and transmit that information coded within an elusive signal dubbed florigen to the apex to reprogram development. Recent advances in Arabidopsis research indicate that the core of the day-length measurement mechanism lies in the circadian regulation of CONSTANS (CO) expression and the subsequent photoperiodic induction of the expression of FLOWERING LOCUS T (FT) gene, which might encode a major component of florigen. In this review, we introduce current perspectives on how, when and where the floral signal is generated.

PMID:
17035069
DOI:
10.1016/j.tplants.2006.09.004
[Indexed for MEDLINE]

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