Nimmo, H. G. (2018) Entrainment of Arabidopsis roots to the light:dark cycle by light piping. Plant, Cell and Environment, 41(8), pp. 1742-1748. (doi: 10.1111/pce.13137) (PMID:29314066)
|
Text
155110.pdf - Accepted Version 965kB | |
|
Text
155110Suppl.pdf - Supplemental Material 6MB |
Abstract
Correct operation of the plant circadian clock is crucial for optimal growth and development. Recent evidence has shown that the plant clock is tissue-specific and potentially hierarchical, implying that there are signalling mechanisms that can synchronise the clock in different tissues. Here I have addressed the mechanism that allows the shoot and root clocks to be synchronised in light:dark cycles but not in continuous light. Luciferase imaging data from two different Arabidopsis accessions with two different markers show that the period of the root clock is much less sensitive to blue light than to red light. Decapitated roots were imaged either in darkness or with the top section of root tissue exposed to light. Exposure to red light reduced the period of the root tissue maintained in darkness whereas exposure to blue light did not. The data indicate that light can be piped through root tissue to affect the circadian period of tissue in darkness. I propose that the synchronisation of shoots and roots in light:dark cycles is achieved by light piping from shoots to roots.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Nimmo, Professor Hugh |
| Authors: | Nimmo, H. G. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Molecular Biosciences |
| Journal Name: | Plant, Cell and Environment |
| Publisher: | Wiley |
| ISSN: | 0140-7791 |
| ISSN (Online): | 1365-3040 |
| Published Online: | 05 January 2018 |
| Copyright Holders: | Copyright © 2018 Wiley |
| First Published: | First published in Plant, Cell and Environment 41(8):1742-1748 |
| Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
University Staff: Request a correction | Enlighten Editors: Update this record
Altmetric
Altmetric