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CIRCADIAN CLOCK ASSOCIATED1 Transcript Stability and the Entrainment of the Circadian Clock in Arabidopsis
How CIRCADIAN CLOCK ASSOCIATED1 RNA stability affects the timing of the internal clock in Arabidopsis plants
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Abstract
CCA1 messenger RNA has a short half-life in red and blue light.
- Circadian clocks in plants help predict and adapt to environmental changes over a 24-hour cycle.
- Light and temperature can entrain the molecular oscillators that regulate circadian rhythms in Arabidopsis.
- Previous findings indicated that light influences the expression of the oscillator gene CCA1.
- In transgenic plants with constant CCA1 expression, CCA1 transcript stability is affected by light conditions.
- CCA1 messenger RNA remains stable in the dark and far-red light but degrades quickly in red and blue light.
- The instability determinants of CCA1 transcripts are likely found in the gene's coding region.
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