Leaf senescence is a programmed developmental process governed by various
endogenous and exogenous factors, such as the plant developmental stage, leaf age …

The plant circadian clock coordinates the responses to multiple and often simultaneous
environmental challenges that the sessile plant cannot avoid. These responses must be …

Background How plants adapt their developmental patterns to regular seasonal changes is
an important question in biology. The annual growth cycle in perennial long-lived trees is yet …

The circadian oscillator in eukaryotes consists of several interlocking feedback loops
through which the expression of clock genes is controlled. It is generally assumed that all …

CONSTANS (CO) is an important floral regulator in the photoperiod pathway, integrating the
circadian clock and light signal into a control for flowering time. It is known that CO promotes …

Environmental control of flowering allows plant reproduction to occur under optimal
conditions and facilitates adaptation to different locations. At high latitude, flowering of many …

Abstract Exposing Arabidopsis (Arabidopsis thaliana) plants to low temperature results in
rapid induction of CBF1, 2, and 3 (CBF1-3; also known as DREB1B, C, and A, respectively) …

Transcriptional feedback loops constitute the molecular circuitry of the plant circadian clock.
In Arabidopsis, a core loop is established between CCA1 and TOC1. Although CCA1 …

In the March 2012 issue of The Plant Cell we describe extensive alternative splicing (AS) of
Arabidopsis circadian clock genes. Notably these distinct post-transcriptional events …

Vernalization establishes a memory of winter that must be maintained for weeks or months
in order to promote flowering the following spring. The stability of the vernalized state varies …