RT Journal Article SR Electronic T1 FD, a bZIP Protein Mediating Signals from the Floral Pathway Integrator FT at the Shoot Apex JF Science JO Science FD American Association for the Advancement of Science SP 1052 OP 1056 DO 10.1126/science.1115983 VO 309 IS 5737 A1 Abe, Mitsutomo A1 Kobayashi, Yasushi A1 Yamamoto, Sumiko A1 Daimon, Yasufumi A1 Yamaguchi, Ayako A1 Ikeda, Yoko A1 Ichinoki, Harutaka A1 Notaguchi, Michitaka A1 Goto, Koji A1 Araki, Takashi YR 2005 UL http://science.sciencemag.org/content/309/5737/1052.abstract AB FLOWERING LOCUS T (FT) is a conserved promoter of flowering that acts downstream of various regulatory pathways, including one that mediates photoperiodic induction through CONSTANS (CO), and is expressed in the vasculature of cotyledons and leaves. A bZIP transcription factor, FD, preferentially expressed in the shoot apex is required for FT to promote flowering. FD and FT are interdependent partners through protein interaction and act at the shoot apex to promote floral transition and to initiate floral development through transcriptional activation of a floral meristem identity gene, APETALA1 (AP1). FT may represent a long-distance signal in flowering.