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Main research interests

Redox signaling mechanisms are known to be implicated in plant adaptation to environmental conditions and stress. One of the main actors involved in the regulation of the cellular redox state is a multigenic family of ubiquitous oxidoreductases named thioredoxins (TRXs). The team is expert on plastidial TRXs and has characterized the functional relationships between TRXs and numerous TRX targets. We have studied the expression profiles of A. thaliana TRXs showing that a specific class of plastidial TRXs is expressed in non-photosynthetic organs, including seeds. Our recent findings underscore the physiological importance of some TRXs and their targets in plant responses to environmental stresses.

Selection of 3 major recent publications

Heyno E, Innocenti G, Lemaire SD, Issakidis-Bourguet E, Krieger-Liszkay A (2014) Putative role of the malate valve enzyme NADP-malate dehydrogenase in H₂O₂ signalling in Arabidopsis. Philos Trans R Soc London B Biol Sci., 369, 20130228

Rey P, Sanz-Barrio R, Innocenti G, Ksas B, Courteille A, Rumeau D, Issakidis-Bourguet E, Farran I (2013) Overexpression of plastidial thioredoxins f and m differentially alters photosynthetic activity and response to oxidative stress in tobacco plants. Front. Plant Phys. DOI : 10.3389/fpls.2013.00390

Bohrer AS, Massot V, Innocenti G, Reichheld JP, Issakidis-Bourguet E, Vanacker H (2012) New insights into the reduction systems of plastidial thioredoxins point out the unique properties of thioredoxin z from Arabidopsis. J Exp Bot., 63, 6315-23

Address

Institute of Plant Sciences Paris-Saclay (IPS2)
Oxidative stress, redox signaling and chromatin
Plateau du Moulon
91160 Orsay
France