Journal ArticleDOI
Plant Circadian Clocks Increase Photosynthesis, Growth, Survival, and Competitive Advantage
Antony N. Dodd,Neeraj Salathia,Neeraj Salathia,Anthony Hall,Anthony Hall,Éva Kevei,Éva Kevei,Éva Kevei,Réka Tóth,Ferenc Nagy,Julian M. Hibberd,Andrew J. Millar,Andrew J. Millar,Alex A. R. Webb +13 more
TLDR
It is shown that a substantial photosynthetic advantage is conferred by correct matching of the circadian clock period with that of the external light-dark cycle, which explains why plants gain advantage from circadian control.Abstract:
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 plants with circadian periods differing from their environment. This explains why plants gain advantage from circadian control.read more
Citations
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The mammalian circadian timing system: organization and coordination of central and peripheral clocks.
TL;DR: This work discusses knowledge acquired during the past few years on the complex structure and function of the mammalian circadian timing system and some of the SCN output pathways serve as input pathways for peripheral tissues.
Journal ArticleDOI
Sugar Sensing and Signaling in Plants: Conserved and Novel Mechanisms
TL;DR: In this article, the experimental amenability of yeast as a unicellular model system has enabled the discovery of multiple sugar sensors and signaling pathways, and a central role for hexokinase (HXK) as conserved glucose sensor.
Journal ArticleDOI
Circadian Integration of Metabolism and Energetics
Joseph Bass,Joseph S. Takahashi +1 more
TL;DR: Advances in understanding the interrelationship among circadian disruption, sleep deprivation, obesity, and diabetes are reviewed and implications for rational therapeutics for these conditions are reviewed.
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The Meter of Metabolism
TL;DR: The relationship between the circadian and metabolic systems and the implications for cardiovascular disease, obesity, and diabetes are reviewed.
Journal ArticleDOI
Plant Circadian Rhythms
TL;DR: The earth rotates on its axis every 24 h, with the result that any position on the earth's surface alternately faces toward or away from the sun—day and night.
References
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Journal ArticleDOI
Orchestrated Transcription of Key Pathways in Arabidopsis by the Circadian Clock
Stacey L. Harmer,John B. Hogenesch,Marty Straume,Hur-Song Chang,Bin Han,Tong Zhu,Xun Wang,Joel A. Kreps,Steve A. Kay,Steve A. Kay +9 more
TL;DR: This study presents a comprehensive view of the temporal compartmentalization of physiological pathways by the circadian clock in a eukaryote.
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A meta-analysis of elevated CO2 effects on woody plant mass, form, and physiology
Peter S. Curtis,Xianzhong Wang +1 more
TL;DR: Meta-analytic methods used to summarize and interpret more than 500 reports of effects of elevated CO2 on woody plant biomass accumulation and partitioning, gas exchange, and leaf nitrogen and starch content provide robust, statistically defensible estimates of elevatedCO2 effect sizes for use in forest and climate model parameterization.
Journal ArticleDOI
Time zones: a comparative genetics of circadian clocks.
Michael W. Young,Steve A. Kay +1 more
TL;DR: The circadian clock is a widespread cellular mechanism that underlies diverse rhythmic functions in organisms from bacteria and fungi, to plants and animals, and the weight of evidence favours their independent evolutionary origins in different kingdoms.
Journal ArticleDOI
Reciprocal Regulation Between TOC1 and LHY/CCA1 Within the Arabidopsis Circadian Clock
TL;DR: It is shown that both proteins bind to a region in the TOC1 promoter that is critical for its clock regulation, and these interactions form a loop critical for clock function inArabidopsis.
Journal ArticleDOI
Resonating circadian clocks enhance fitness in cyanobacteria
TL;DR: This work tested the adaptive significance of circadian programming by measuring the relative fitness under competition between various strains of cyanobacteria expressing different circadian periods and found strains that had a circadian period similar to that of the light/dark cycle were favored under competition in a manner that indicates the action of soft selection.