Detail FT Protein Movement Contributes to Long-Distance Signaling in Floral Induction of Arabidopsis   Oleh:  Corbesier, Laurent ; Vincent, Carol ; Jang, Seonghoe ; Fornara, Fabio ; Fan, Qingzhi ; Searle, lain ; Giakountis, Antonis ; Farrona, Sara ; Gissot, Lionel ; Turnbull, Colin ; Coupland, George Jenis: Article from Bulletin/Magazine Dalam koleksi: SCIENCE (keterangan: ada di Proquest) vol. 316 no. 5827 (May 2007), page 1030. Topik: Plant Science Ketersediaan Perpustakaan FK Nomor Panggil: S01.K.2007.05 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel In plants, seasonal changes in day length are perceived in leaves, which initiate long-distance signaling that induces flowering at the shoot apex. The identity of the long-distance signal has yet to be determined. In Arabidopsis, activation of FLOWERING LOCUS T (FT) transcription in leaf vascular tissue (phloem) induces flowering. We found that FT messenger RNA is required only transiently in the leaf. In addition, FT fusion proteins expressed specifically in phloem cells move to the apex and move long distances between grafted plants. Finally, we provide evidence that FT does not activate an intermediate messenger in leaves. We conclude that FT protein acts as a long-distance signal that induces Arabidopsis flowering. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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