Plant sulphur metabolism is stimulated by photorespiration
| Autor: | Cyril Abadie, Guillaume Tcherkez |
|---|---|
| Přispěvatelé: | Institut de Recherche en Horticulture et Semences (IRHS), Université d'Angers (UA)-Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine [SDV]Life Sciences [q-bio] Sulfur metabolism Medicine (miscellaneous) sulfate carbone atmosphérique 01 natural sciences C3 photosynthesis Methionine assimilation de la feuille Lack of knowledge glutathione Photosynthesis Milieux et Changements globaux lcsh:QH301-705.5 2. Zero hunger azote Carbon Isotopes Vegetal Biology Chemistry Sulfates Plant physiology Plants Agricultural sciences Photorespiration Bio-informatique Helianthus élevation du gaz carbonique General Agricultural and Biological Sciences Metabolic Networks and Pathways inorganic chemicals Bioinformatics enrichissement en co2 General Biochemistry Genetics and Molecular Biology Article 03 medical and health sciences assimilation de nitrate Botany Sulfur Isotopes photosynthèse Cysteine Carbon-13 Magnetic Resonance Spectroscopy biochimie végétale Assimilation (biology) Metabolism 15. Life on land Plant Leaves Metabolic pathway 030104 developmental biology lcsh:Biology (General) Biologie végétale Sciences agricoles Sulfur 010606 plant biology & botany |
| Zdroj: | Communications Biology, Vol 2, Iss 1, Pp 1-7 (2019) Communications Biology Communications Biology, Nature Publishing Group, 2019, 2 (1), pp.379. ⟨10.1038/s42003-019-0616-y⟩ Communications Biology 1 (2), . (2019) |
| ISSN: | 2399-3642 |
| DOI: | 10.1038/s42003-019-0616-y |
| Popis: | Intense efforts have been devoted to describe the biochemical pathway of plant sulphur (S) assimilation from sulphate. However, essential information on metabolic regulation of S assimilation is still lacking, such as possible interactions between S assimilation, photosynthesis and photorespiration. In particular, does S assimilation scale with photosynthesis thus ensuring sufficient S provision for amino acids synthesis? This lack of knowledge is problematic because optimization of photosynthesis is a common target of crop breeding and furthermore, photosynthesis is stimulated by the inexorable increase in atmospheric CO2. Here, we used high-resolution 33S and 13C tracing technology with NMR and LC-MS to access direct measurement of metabolic fluxes in S assimilation, when photosynthesis and photorespiration are varied via the gaseous composition of the atmosphere (CO2, O2). We show that S assimilation is stimulated by photorespiratory metabolism and therefore, large photosynthetic fluxes appear to be detrimental to plant cell sulphur nutrition. Cyril Abadie and Guillaume Tcherkez tested whether the metabolic flux associated with sulfur assimilation effectively scales with photosynthesis by measuring metabolic fluxes in sulfur assimilation. This study suggests that photorespiratory metabolism stimulates sulfur assimilation. |
| Databáze: | OpenAIRE |
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