Plant Circadian Clocks Increase Photosynthesis, Growth, Survival, and Competitive Advantage

@article{Dodd2005PlantCC,
  title={Plant Circadian Clocks Increase Photosynthesis, Growth, Survival, and Competitive Advantage},
  author={Antony N. Dodd and Neeraj S. Salathia and Anthony J W Hall and Eva Kevei and R{\'e}ka T{\'o}th and Ferenc Nagy and Julian M. Hibberd and Andrew J. Millar and Alex A. R. Webb},
  journal={Science},
  year={2005},
  volume={309},
  pages={630 - 633}
}
Circadian clocks are believed to confer an advantage to plants, but the nature of that advantage has been unknown. We show that a substantial photosynthetic advantage is conferred by correct matching of the circadian clock period with that of the external light-dark cycle. In wild type and in long– and short–circadian period mutants of Arabidopsis thaliana, plants with a clock period matched to the environment contain more chlorophyll, fix more carbon, grow faster, and survive better than… 
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973 Citations
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TLDR
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Using mathematical modeling and experimental approaches, workers in the field have developed a model of the clock that incorporates both transcriptional and posttranscriptional regulation of clock genes and generates rhythmic outputs that can be monitored at the cellular and whole-organism level.
Photosynthetic Entrainment of the Circadian Clock Facilitates Plant Growth under Environmental Fluctuations: Perspectives from an Integrated Model of Phase Oscillator and Phloem Transportation
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The integrated model predicted that sugar-sensitive plants grow faster than sugar-insensitive plants under constant as well as changing photoperiod conditions and found that sugar entrainment enables efficient carbon investment for growth by stabilizing sucrose supply to sink tissues.
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  • Environmental Science, Biology
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The combination of high-resolution growth rate analyses with mutant and biochemical analysis is helping to elucidate the time-dependent interactions between these factors and discover the molecular mechanisms involved.
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Evidence suggesting that light, plant hormones and the circadian clock all interact to control diurnal patterns of plant growth is reviewed.
Nutrient homeostasis within the plant circadian network
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This review will highlight recent insights into the role of the circadian clock in regulating plant nutrition as well as discuss the role for nutrients in affecting circadian function.
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TLDR
This work considers the coupling of the circadian oscillator with carbohydrate biochemistry and the connections between the nuclear-encoded circadian clock and processes within chloroplasts and describes how this might provide adaptations to optimize plant performance in an environment that varies both predictably upon a daily and seasonal basis, and unpredictably due to the weather.
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