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Monitoring Cell-autonomous Circadian Clock Rhythms of Gene Expression Using Luciferase Bioluminescence Reporters
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Monitoring Cell-autonomous Circadian Clock Rhythms of Gene Expression Using Luciferase Bioluminescence Reporters

Published on: September 27, 2012

Mind the clock.

Shigeru Hanano1, Seth J Davis

  • 1Max Planck Institute for Plant Breeding Research; Köln, Germany.

Plant Signaling & Behavior
|August 26, 2009
PubMed
Summary
This summary is machine-generated.

Plant genomics research reveals that the circadian clock influences most plant processes. This study investigates how stress and hormones affect clock gene expression in Arabidopsis.

Keywords:
circadian clockgenome expression profilinglight signalsmicroarrays

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Area of Science:

  • Plant genomics
  • Molecular biology
  • Chronobiology

Background:

  • Recent advancements in plant genomics enable genome-wide gene expression analysis.
  • The AtGenExpress database provides large-scale global expression profiling data for Arabidopsis.
  • Circadian and diurnal time courses reveal that up to 20% of transcripts are circadian regulated, impacting numerous plant processes.

Purpose of the Study:

  • To investigate potential alterations in clock gene expression levels within the AtGenExpress datasets.
  • To explore the influence of stress and hormone treatments on the plant circadian system.

Main Methods:

  • Utilizing microarray analyses from the AtGenExpress datasets.
  • Analyzing genome-wide gene expression profiles under various experimental conditions.

Main Results:

  • The study hypothesizes that clock genes' expression levels may be altered in response to stress and hormone treatments.
  • Circadian regulation impacts a wide range of plant physiological and metabolic processes.

Conclusions:

  • The plant circadian system is influenced by external cues, including phytohormones.
  • Further investigation into stress and hormone effects on clock genes is warranted.