Hornbacher, Johann, Rumlow, Annekathrin, Pallmann, Philip  ORCID: https://orcid.org/0000-0001-8274-9696, Turcios, Ariel E, Riemenschneider, Anja and Papenbrock, Jutta
2019.
The levels of sulfur-containing metabolites in Brassica napus are not influenced by the circadian clock but diurnally.
Journal of Plant Biology
62
(5)
, pp. 359-373.
10.1007/s12374-019-0143-x
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Abstract
Adapting biological processes to an endogenous rhythm enables plants to cope with the daily changes in light and temperature in a more predictable way enhancing growth and fitness. A number of biological processes such as metabolic pathways as well as the immunity in plants are under diurnal or circadian control. In this study a possible circadian regulation of key enzymes in the sulfur assimilation and the corresponding metabolites was investigated in the agriculturally important crop plant oilseed rape (Brassica napus). Leaves of a commercially available cultivar were harvested in the course of a day under diurnal and under free-running conditions with constant light. Analyses in this study were focused on sulfur-containing metabolites and expression analysis of enzymes involved in sulfur assimilation. Expression analysis showed that the transcript levels of the sulfate transporters Sultr3;1 and Sultr4;2 as well as APR2 and APR3 oscillated diurnally. Results revealed a periodic rhythm of sulfur-containing metabolites such as glutathione, sulfate and certain glucosinolates in the course of a day which were only partly maintained under constant light. Therefore, we conclude that a diurnal rhythm and not the circadian clock regulates sulfur metabolism in plants.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Medicine Research Institutes & Centres > Centre for Trials Research (CNTRR) |
| Subjects: | Q Science > QK Botany S Agriculture > SB Plant culture |
| Publisher: | Springer Verlag (Germany) |
| ISSN: | 1226-9239 |
| Date of First Compliant Deposit: | 30 October 2019 |
| Date of Acceptance: | 30 July 2019 |
| Last Modified: | 03 Dec 2024 04:30 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/125926 |
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