A5033562239- Plant responses to elevated CO2
- Plant nutrient uptake and metabolism
- Nitrogen and Sulfur Effects on Brassica
- Soybean genetics and cultivation
- Autophagy in Disease and Therapy
- Plant Molecular Biology Research
- Plant responses to water stress
- Plant Stress Responses and Tolerance
- Agriculture Sustainability and Environmental Impact
- Genomics, phytochemicals, and oxidative stress
- Phytase and its Applications
- Crop Yield and Soil Fertility
- Studies on Chitinases and Chitosanases
- Phytochemicals and Antioxidant Activities
- Metalloenzymes and iron-sulfur proteins
- Aluminum toxicity and tolerance in plants and animals
- Plant Gene Expression Analysis
- Bee Products Chemical Analysis
- Plant Micronutrient Interactions and Effects
- Air Quality and Health Impacts
- Cassava research and cyanide
- Endoplasmic Reticulum Stress and Disease
- Antioxidant Activity and Oxidative Stress
- Lipid metabolism and biosynthesis
- Pineapple and bromelain studies
Molina Center for Energy and the Environment
2024
Centre National de la Recherche Scientifique
2019-2024
Institut de Recherche pour le Développement
2023-2024
Université Paris-Est Créteil
2015-2024
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2016-2024
Institut d'écologie et des sciences de l'environnement de Paris
2015-2024
Institut Jean-Pierre Bourgin
2016-2024
AgroParisTech
2016-2024
Université Paris-Saclay
2019-2024
Sorbonne Université
2023
Autophagy is essential for protein degradation, nutrient recycling, and nitrogen remobilization. induced during leaf ageing in response to starvation, known play a fundamental role recycling remobilization seed filling. Accordingly, leaves of Arabidopsis autophagy mutants (atg) have been shown over-accumulate proteins peptides, possibly because reduced degradation capacity. Surprisingly, atg also displayed higher protease activities. The work reported here aimed at identifying the nature...
Summary Autophagy is a universal mechanism in eukaryotic cells that facilitates the degradation of unwanted cell constituents and essential for homeostasis nutrient recycling. The salicylic acid‐independent effects autophagy defects on leaf metabolism were determined through large‐scale proteomic lipidomic analyses atg5 atg5/sid2 mutants under different nitrogen sulfur growth conditions. Results revealed irrespective conditions, plants carrying mutation presented all characteristics...
Abstract Plants have fundamental dependences on nitrogen and sulfur frequently to cope with chronic limitations when their supply is sub-optimal. This study aimed at characterizing the metabolomic, proteomic, transcriptomic changes occurring in Arabidopsis leaves under nitrate (Low-N) sulfate (Low-S) order compare effects, determine interconnections, examine strategies of adaptation. Metabolite profiling globally revealed opposite effects Low-S Low-N carbohydrate amino acid accumulations,...
SUMMARY STOP1, an Arabidopsis transcription factor favouring root growth tolerance against Al toxicity, acts in the response to iron under low Pi (−Pi). Previous studies have shown that and Fe regulate stability accumulation of STOP1 roots, protein is sumoylated by unknown E3 ligase. Here, using a forward genetics suppressor screen, we identified SUMO (small ubiquitin‐like modifier) ligase SIZ1 as modulator signalling. Mutations increase expression ALMT1 (a direct target STOP1) responses...
Sulphur deficiency in crops became an agricultural concern several decades ago, due to the decrease of S deposition and atmospheric sulphur dioxide emissions released by industrial plants. Autophagy, which is a conserved mechanism for nutrient recycling eukaryotes, involved nitrogen, iron, zinc manganese remobilizations from rosette seeds Arabidopsis thaliana. Here, we have compared role autophagy nitrogen management at whole plant level, performing concurrent labelling with 34S 15N isotopes...
Leaf senescence is characterised by a massive degradation of proteins in order to recycle nitrogen other parts the plant, such as younger leaves or developing grain/seed. Protein during leaf highly regulated process and it suggested that be degraded are marked an oxidative modification (carbonylation) makes them more susceptible proteolysis. However, there yet no evidence increase protein carbonylation level natural senescence. The aim our study was thus monitor flag field-grown winter wheat...
SUMMARY The SID2 (SA INDUCTION‐DEFICIENT2) gene that encodes ICS1 (isochorismate synthase), plays a central role in salicylic acid biosynthesis Arabidopsis. sid2 and NahG (encoding bacterial SA hydroxylase) overexpressing mutants (NahG‐OE) have currently been shown to outperform wild type, presenting delayed leaf senescence, higher plant biomass better seed yield. When grown under sulfate‐limited conditions (low‐S), exhibited early yellowing compared the NahG‐OE, npr1 mutant affected...