Proline oxidation fuels mitochondrial respiration during dark-induced leaf senescence in Arabidopsis thaliana

Author:

Launay Alban1,Cabassa-Hourton Cécile1,Eubel Holger2,Maldiney Régis1,Guivarc’h Anne1,Crilat Emilie1,Planchais Séverine1,Lacoste Jérôme1,Bordenave-Jacquemin Marianne1,Clément Gilles3,Richard Luc1,Carol Pierre1,Braun Hans-Peter2ORCID,Lebreton Sandrine1,Savouré Arnould1ORCID

Affiliation:

1. Sorbonne Université, CNRS, IRD 242, INRA, PARIS 7, UPEC, Institut d’Ecologie et des Sciences de l’Environnement de Paris, iEES, Paris, France

2. Institute of Plant Genetics, Plant Proteomics, Leibniz University Hannover, Hannover, Germany

3. Institut Jean-Pierre Bourgin, UMR 1318, INRA-AgroParisTech, Centre INRA Versailles, Versailles Cedex, France

Abstract

Oxidation of proline in response to dark-induced senescence in Arabidopsis leaves allows this amino acid to be used as an alternative respiratory substrate and contributes to the production of glutamate and energy that can be used for nutrient remobilization.

Funder

Sorbonne University

Publisher

Oxford University Press (OUP)

Subject

Plant Science,Physiology

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