Heat the Clock: Entrainment and Compensation in Arabidopsis Circadian Rhythms

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Heat the Clock : Entrainment and Compensation in Arabidopsis Circadian Rhythms. / Avello Fernández, Paula Andrea; Davis, Seth Jon; Ronald, James Andrew; Pitchford, Jonathan William.

In: Journal of circadian rhythms, 14.05.2019.

Research output: Contribution to journalArticle

Harvard

Avello Fernández, PA, Davis, SJ, Ronald, JA & Pitchford, JW 2019, 'Heat the Clock: Entrainment and Compensation in Arabidopsis Circadian Rhythms', Journal of circadian rhythms. https://doi.org/10.5334/jcr.179

APA

Avello Fernández, P. A., Davis, S. J., Ronald, J. A., & Pitchford, J. W. (2019). Heat the Clock: Entrainment and Compensation in Arabidopsis Circadian Rhythms. Journal of circadian rhythms. https://doi.org/10.5334/jcr.179

Vancouver

Avello Fernández PA, Davis SJ, Ronald JA, Pitchford JW. Heat the Clock: Entrainment and Compensation in Arabidopsis Circadian Rhythms. Journal of circadian rhythms. 2019 May 14. https://doi.org/10.5334/jcr.179

Author

Avello Fernández, Paula Andrea ; Davis, Seth Jon ; Ronald, James Andrew ; Pitchford, Jonathan William. / Heat the Clock : Entrainment and Compensation in Arabidopsis Circadian Rhythms. In: Journal of circadian rhythms. 2019.

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@article{4639f49d98594b26b070038d1fa73b23,
title = "Heat the Clock: Entrainment and Compensation in Arabidopsis Circadian Rhythms",
abstract = "The circadian clock is a biological mechanism that permits some organisms to anticipate daily environmental variations. This clock generates biological rhythms, which can be reset by environmental cues suchas cycles of light or temperature, a process known as entrainment. Afterentrainment, circadian rhythms typically persist with approximately 24hours periodicity in free-running conditions i.e. in the absence of environmental cues. Experimental evidence also shows that a free-running periodclose to 24 hours is maintained across a range of temperatures, a processknown as temperature compensation. In the plant Arabidopsis, the effectof light on the circadian system has been widely studied and successfullymodelled mathematically. However, the role of temperature in periodicity, and the relationships between entrainment and compensation, are notfully understood. Here we adapt recent models to incorporate temperature dependence by applying Arrhenius equations to the parameters ofthe models that characterize transcription, translation, and degradationrates. We show that the resulting models can exhibit thermal entrainmentand temperature compensation, but that these phenomena emerge fromphysiologically different sets of processes. Further simulations combiningthermal and photic forcing in more realistic scenarios clearly distinguishbetween the processes of entrainment and compensation, and reveal temperature compensation as an emergent property which can arise as a resultof multiple temperature-dependent interactions. Our results consistentlypoint to the thermal sensitivity of degradation rates as driving compensation and entrainment across a range of conditions.",
author = "{Avello Fern{\'a}ndez}, {Paula Andrea} and Davis, {Seth Jon} and Ronald, {James Andrew} and Pitchford, {Jonathan William}",
note = "{\circledC} 2019 The Author(s).",
year = "2019",
month = "5",
day = "14",
doi = "10.5334/jcr.179",
language = "English",
journal = "Journal of circadian rhythms",
issn = "1740-3391",
publisher = "BioMed Central",

}

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TY - JOUR

T1 - Heat the Clock

T2 - Journal of circadian rhythms

AU - Avello Fernández, Paula Andrea

AU - Davis, Seth Jon

AU - Ronald, James Andrew

AU - Pitchford, Jonathan William

N1 - © 2019 The Author(s).

PY - 2019/5/14

Y1 - 2019/5/14

N2 - The circadian clock is a biological mechanism that permits some organisms to anticipate daily environmental variations. This clock generates biological rhythms, which can be reset by environmental cues suchas cycles of light or temperature, a process known as entrainment. Afterentrainment, circadian rhythms typically persist with approximately 24hours periodicity in free-running conditions i.e. in the absence of environmental cues. Experimental evidence also shows that a free-running periodclose to 24 hours is maintained across a range of temperatures, a processknown as temperature compensation. In the plant Arabidopsis, the effectof light on the circadian system has been widely studied and successfullymodelled mathematically. However, the role of temperature in periodicity, and the relationships between entrainment and compensation, are notfully understood. Here we adapt recent models to incorporate temperature dependence by applying Arrhenius equations to the parameters ofthe models that characterize transcription, translation, and degradationrates. We show that the resulting models can exhibit thermal entrainmentand temperature compensation, but that these phenomena emerge fromphysiologically different sets of processes. Further simulations combiningthermal and photic forcing in more realistic scenarios clearly distinguishbetween the processes of entrainment and compensation, and reveal temperature compensation as an emergent property which can arise as a resultof multiple temperature-dependent interactions. Our results consistentlypoint to the thermal sensitivity of degradation rates as driving compensation and entrainment across a range of conditions.

AB - The circadian clock is a biological mechanism that permits some organisms to anticipate daily environmental variations. This clock generates biological rhythms, which can be reset by environmental cues suchas cycles of light or temperature, a process known as entrainment. Afterentrainment, circadian rhythms typically persist with approximately 24hours periodicity in free-running conditions i.e. in the absence of environmental cues. Experimental evidence also shows that a free-running periodclose to 24 hours is maintained across a range of temperatures, a processknown as temperature compensation. In the plant Arabidopsis, the effectof light on the circadian system has been widely studied and successfullymodelled mathematically. However, the role of temperature in periodicity, and the relationships between entrainment and compensation, are notfully understood. Here we adapt recent models to incorporate temperature dependence by applying Arrhenius equations to the parameters ofthe models that characterize transcription, translation, and degradationrates. We show that the resulting models can exhibit thermal entrainmentand temperature compensation, but that these phenomena emerge fromphysiologically different sets of processes. Further simulations combiningthermal and photic forcing in more realistic scenarios clearly distinguishbetween the processes of entrainment and compensation, and reveal temperature compensation as an emergent property which can arise as a resultof multiple temperature-dependent interactions. Our results consistentlypoint to the thermal sensitivity of degradation rates as driving compensation and entrainment across a range of conditions.

U2 - 10.5334/jcr.179

DO - 10.5334/jcr.179

M3 - Article

JO - Journal of circadian rhythms

JF - Journal of circadian rhythms

SN - 1740-3391

ER -