摘要: Florigen is the hypothetical leaf-produced signal that induces floral initiation at shoot apex. The nature of florigen has remained elusive for more than 70 years. But recent progress toward understanding regulatory network flowering in Arabidopsis led to suggestion FLOWERING LOCUS T (FT) or its product mobile flower-inducing moves from an induced leaf through phloem In past year, physical and chemical evidence shown it FT protein, not mRNA, leaves apical meristem. These results have established main, if only, component universal florigen.