Dokument: Growth in fluctuating light buffers plants against photorespiratory perturbations
| Titel: | Growth in fluctuating light buffers plants against photorespiratory perturbations | |||||||
| URL für Lesezeichen: | https://docserv.uni-duesseldorf.de/servlets/DocumentServlet?id=67577 | |||||||
| URN (NBN): | urn:nbn:de:hbz:061-20241118-094403-6 | |||||||
| Kollektion: | Publikationen | |||||||
| Sprache: | Englisch | |||||||
| Dokumententyp: | Wissenschaftliche Texte » Artikel, Aufsatz | |||||||
| Medientyp: | Text | |||||||
| Autoren: | Bismarck, Thekla von [Autor] Wendering_Philipp [Autor] Perez de Souza, Leonardo [Autor] Ruß, Jeremy [Autor] Strandberg, Linnéa [Autor] Heyneke, Elmien [Autor] Walker, Berkley J. [Autor] Schöttler, Mark A. [Autor] Fernie, Alisdair R. [Autor] Nikoloski, Zoran [Autor] | |||||||
| Dateien: |
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| Beschreibung: | Photorespiration (PR) is the pathway that detoxifies the product of the oxygenation reaction of Rubisco. It has been hypothesized that in dynamic light environments, PR provides a photoprotective function. To test this hypothesis, we characterized plants with varying PR enzyme activities under fluctuating and non-fluctuating light conditions. Contrasting our expectations, growth of mutants with decreased PR enzyme levels was least affected in fluctuating light compared with wild type. Results for growth, photosynthesis and metabolites combined with thermodynamics-based flux analysis revealed two main causal factors for this unanticipated finding: reduced rates of photosynthesis in fluctuating light and complex re-routing of metabolic fluxes. Only in non-fluctuating light, mutants lacking the glutamate:glyoxylate aminotransferase 1 re-routed glycolate processing to the chloroplast, resulting in photooxidative damage through H2O2 production. Our results reveal that dynamic light environments buffer plant growth and metabolism against photorespiratory perturbations. | |||||||
| Rechtliche Vermerke: | Originalveröffentlichung:
von Bismarck, T., Wendering, P., Perez de Souza, L., Ruß, J., Strandberg, L., Heyneke, E., Walker, B. J., Schöttler, M. A., Fernie, A. R., Nikoloski, Z., & Armbruster, U. (2023). Growth in fluctuating light buffers plants against photorespiratory perturbations. Nature Communications, 14, Article 7052. https://doi.org/10.1038/s41467-023-42648-x | |||||||
| Lizenz: |  Dieses Werk ist lizenziert unter einer Creative Commons Namensnennung 4.0 International Lizenz | |||||||
| Fachbereich / Einrichtung: | Mathematisch- Naturwissenschaftliche Fakultät | |||||||
| Dokument erstellt am: | 18.11.2024 | |||||||
| Dateien geändert am: | 18.11.2024 |
