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Cuitun-Coronado, David, Rees, Hannah, Colmer, Joshua, Hall, Anthony 
ORCID: https://orcid.org/0000-0002-1806-020X, de Barros Dantas, Luíza L. and Dodd, Antony N.
(2022)
Circadian and diel regulation of photosynthesis in the bryophyte Marchantia polymorpha.
Plant Cell and Environment, 45 (8).
pp. 2381-2394.
ISSN 0140-7791
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Abstract
Circadian rhythms are 24-h biological cycles that align metabolism, physiology, and development with daily environmental fluctuations. Photosynthetic processes are governed by the circadian clock in both flowering plants and some cyanobacteria, but it is unclear how extensively this is conserved throughout the green lineage. We investigated the contribution of circadian regulation to aspects of photosynthesis in Marchantia polymorpha, a liverwort that diverged from flowering plants early in the evolution of land plants. First, we identified in M. polymorpha the circadian regulation of photosynthetic biochemistry, measured using two approaches (delayed fluorescence, pulse amplitude modulation fluorescence). Second, we identified that light-dark cycles synchronize the phase of 24 h cycles of photosynthesis in M. polymorpha, whereas the phases of different thalli desynchronize under free-running conditions. This might also be due to the masking of the underlying circadian rhythms of photosynthesis by light-dark cycles. Finally, we used a pharmacological approach to identify that chloroplast translation might be necessary for clock control of light-harvesting in M. polymorpha. We infer that the circadian regulation of photosynthesis is well-conserved amongst terrestrial plants.
| Item Type: | Article |
|---|---|
| Additional Information: | Funding Information: This study was supported by the UKRI-BBSRC Institute Strategic Programme (ISP) Genes in the Environment (BB/P013511/1), Core Strategic Programme Grant 901 (Genomes to Food Security BB/CSP1720/1), and its work package 902 BBS/E/T/000PR9819 (regulatory interactions and complex phenotypes), designing future wheat ISP (BB/P016855/1; 904 BBS/E/T/000PR9783 (WP4 data access and analysis), and Conacyt (Mexico) (CVU: 510730, Scholarship: 472284). |
| Uncontrolled Keywords: | circadian rhythms,environmental signalling,evolution,photosynthesis,physiology,plant science ,/dk/atira/pure/subjectarea/asjc/1300/1314 |
| Faculty \ School: | Faculty of Science > School of Biological Sciences |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 29 Oct 2024 15:30 |
| Last Modified: | 04 Nov 2024 12:30 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/97340 |
| DOI: | 10.1111/pce.14364 |
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