Abiotic stress and the plant circadian clock

Plant Metabolomics: A Characterisation of Plant Responses to Abiotic Stresses

“…In addition, a feedback mechanism is brought about by metabolic and stress cues on the central oscillator itself (A. Sanchez et al, 2011). It is noteworthy that a functional link between the circadian clock and plant immunity has also been reported very recently (W. Wang et al, 2011), with a remarkable and intriguing example of a plant tuning its immune response against a pathogen.…”

TIME FOR COFFEE Represses Accumulation of the MYC2 Transcription Factor to Provide Time-of-Day Regulation of Jasmonate Signaling in Arabidopsis

“…The circadian clock controls the expression of ;30% of the Arabidopsis thaliana transcriptome, which leads to regulation of diverse metabolic processes and developmental programs in response to daily environmental signals (Davis and Millar, 2001;Covington et al, 2008;Harmer, 2009;Sanchez et al, 2011). The plant circadian clock consists of an input pathway, a core oscillator, and output responses.…”

Dynamic "Symbionts" Linked over Two Centuries: A Tribute to Lynn Margulis (1938–2011)

“…The metallothionein of Pharbitis nil did not reveal any regulation by the endogenous rhythm (Dąbrowska et al, 2010), but MT expression in the fungus Neurospora crassa was shown to be subject to rhythmic changes (Bell-Pedersen et al, 1996). Transcriptome analysis revealed that nearly 70% of Arabidopsis genes controlled by the circadian clock are also regulated by abiotic stresses (Kreps et al, 2002) and that the plant circadian clock is interconnected in both ABA and non-ABA stress responses (Sanchez et al, 2011). This suggests a role for the putative CIRCADIAN elements in MT gene regulation.…”