Philippou, Koumis, Ronald, James Andrew orcid.org/0000-0002-8847-0378, Sanchez-Villarreal, Alfredo et al. (2 more authors) (2019) Physiological and genetic dissection of sucrose inputs to the Arabidopsis thaliana circadian system. Genes. ISSN 2073-4425
Abstract
Circadian rhythms allow an organism to synchronize internal physiological responses to the external environment. Perception of external signals such as light and temperature are critical in the entrainment of the oscillator. However, sugar can also act as an entraining signal. In this work we have confirmed that sucrose accelerates circadian period, but this observed effect is dependent on the reporter gene used. This observed response was dependent on sucrose being available during free-running conditions. If sucrose was applied during entrainment, circadian period was only temporally accelerated, if any effect was observed at all. We also found that sucrose acts to stabilize the robustness of circadian period under red light or blue light, in addition to its previously described role in stabilizing the robustness of rhythms in the dark. Finally, we have also found that CCA1 is required for both a short and long-term response of the circadian oscillator to sucrose, while LHY acts to attenuate the effects of sucrose on circadian period. Together, this work highlights new pathways for how sucrose could be signaling to the oscillator and reveals further functional separation of CCA1 and LHY
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 by the authors. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) The University of York > Faculty of Sciences (York) > Biology (York) |
Depositing User: | Pure (York) |
Date Deposited: | 24 Apr 2019 08:20 |
Last Modified: | 05 Jan 2025 00:22 |
Published Version: | https://doi.org/10.3390/genes10050334 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.3390/genes10050334 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:145295 |