Flowering Time Regulation: Photoperiod- and Temperature-sensing in Leaves

Overview

Journal Trends Plant Sci

Specialty Biology

Date 2013 Jun 25

PMID 23790253

Citations 229

Authors

Young Hun Song

Shogo Ito

Takato Imaizumi

Affiliations

Soon will be listed here.

Abstract

Plants monitor changes in photoperiod and temperature to synchronize their flowering with seasonal changes to maximize fitness. In the Arabidopsis photoperiodic flowering pathway, the circadian clock-regulated components, such as FLAVIN-BINDING, KELCH REPEAT, F-BOX 1 and CONSTANS, both of which have light-controlled functions, are crucial to induce the day-length specific expression of the FLOWERING LOCUS T (FT) gene in leaves. Recent advances indicate that FT transcriptional regulation is central for integrating the information derived from other important internal and external factors, such as developmental age, amount of gibberellic acid, and the ambient temperature. In this review, we describe how these factors interactively regulate the expression of FT, the main component of florigen, in leaves.

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