  The evidence that Flowering Locus T (FT) protein and its paralog Twin Sister
of FT, act as the long distance floral stimulus, or at least that they are part
of it in diverse plant species, has attracted much attention in recent years.
Studies to understand the physiological and molecular apparatuses that
integrate spatial and temporal signals to regulate developmental transition in
plants have occupied countless scientists and have resulted in an unmanageably
large amount of research data. Analysis of these data has helped to identify
multiple systemic florigenic and antiflorigenic regulators. This study gives an
overview of the recent research on gene products, phytohormones and other
metabolites that have been demonstrated to have florigenic or antiflorigenic
functions in plants.
