Alexis Porcher, PhD

Meritförteckning

Professional experiences:

• 01/12/2021 - Present:   Postdoctoral fellow in Saijaliisa Kangasjärvi's group at the University of Helsinki (Finland)

Research topic: Caracterization of redox signaling events occuring during mitochondrial dysfunction responses and their regulation by post-translational modifications.

• 01/01/2021 - 15/11/2021: Postdoctoral fellow at the University of Clermont-Auvergne (France)

Research topic: Exploration of the effects of electromagnetic and electrical waves in plant death to develop new physical method of weed control. Project funded by the French national society of Railway SNCF. 

• 01/10/2017-30/11/2020: Doctoral researcher at the University of Angers (France)

Research topic: Idenfication of the role of the redox metabolism in axillary bud burst control and its photocontrol.

• 01/01/2017 - 31/07/2017  & 01/05/2016 – 31/07/2016: Master’s degree internships at INRAE of Angers

Research topic: Investigation of the role of the nitrate transporter NPF6.8 and nitrogen nutrition in the resistance of Arabidopsis thaliana against the necrotrophic fungus Alternaria brassisicola.

Teaching:

• 2021: Lecturer in cell biology (animal and plant) at the ISTOM engineer school (Angers) 

Course contents: Cytoskeleton, plan cell wall, endomembrane system, organelles, subcellular transport mechanisms, mitosis, meiosis, and photosynthesis.

• 2021: Lecturer in plant physiology at West Catholic university of Angers

Courses contents: Photosynthesis and respiration measurement, characterization of mineral deficiency, gravitropism experiments and introduction to phytohormones

• 2017-2020: High education teacher University of Angers 

Course contents: plant anatomy and histology (2^nd Year of BSc), Angiosperm biology (3^rd year of BSc), plant reproduction (1^st year of BSc), evaluation of 2 master students' thesis and defense.

Representative missions:

• 2017-2020: Representative of Doctoral students and member of the EGAAL doctoral school and the Federative research structure 4207 QUASAV concils. 

Publications:

Alexis Porcher, Nancy Wilmot, Pierre Bonnet, Vincent Procaccio and Alain Vian. (2023) Changes in gene expression after exposing Arabidopsis thaliana plants to nanosecond high amplitude electromagnetic field pulses, Bioelectromagnetics. (In press)

Alexis Porcher, Sébastien Girard, Pierre Bonnet, Raphaël Rouveure, Vincent Guérin, Francoise Paladian and Alain Vian (2023). Non thermal 2.45 GHz electromagnetic exposure causes rapid changes in Arabidopsis thaliana metabolism. Journal of Plant Physiology. 286

Alexis Porcher, Vincent Guérin, David Macherel, Anita Lebrecm Pascale Satour, Jérémy Lothier and Alain Vian (2022). High Expression of ALTERNATIVE OXIDASE 2 in Latent Axillary Buds Suggests Its Key Role in Quiescence Maintenance in Rosebush. Plant and Cell Physiology.  

Thibault Barrit, Alexis Porcher, Caroline Cukier, Pascale Satour, Thomas Guillemette, Anis M. Limami, Béatrice Teulat, Claire Campion and Elisabeth Planchet (2022). Nitrogen nutrition modifies the susceptibility of Arabidopsis thaliana to the necrotrophic fungus, Alternaria brassicicola. Physiologia Plantarum, 174( 1)

Alexis Porcher, Vincent Guérin, Nathalie Leduc, Anita Lebrec , Jérémy Lothier, Alain Vian  (2021). Ascorbate–glutathione pathways mediated by cytokinin regulate H₂O₂ levels in light-controlled rose bud burst, Plant Physiology, Volume 186, Issue 2, June 2021, Pages 910–928.

Alexis Porcher, Vincent Guérin, Françoise Montrichard, Anita Lebrec, Jérémy Lothier and Alain Vian (2020). Ascorbate glutathione-dependent H2O2 scavenging is an important process in axillary bud outgrowth in rosebush, Annals of Botany, Volume 126, Issue 6, 2 November 2020, Pages 1049–1062.

Zang, L., Morère-Le Paven, M.-C., Clochard, T., Porcher, A., Satour, P., Mojović, M., Vidović, M., Limami, A.M., Montrichard, F., 2020. Nitrate inhibits primary root growth by reducing accumulation of reactive oxygen species in the root tip in Medicago truncatula. Plant Physiol. Biochem. 146.

International communications:

Alexis Porcher, Vincent Guérin , Nathalie Leduc, Anita Lebrec , Jérémy Lothier, Alain Vian “Light-dependent H₂O₂ scavenging is a critical process in the photocontrol of axillary bud outgrowth? Plant Biology Europe, Turin, July 2021, oral presentation.

Alexis PORCHER, Jérémy LOTHIER, Vincent GUERIN, Françoise MONTRICHARD, Anita LEBREC and Alain VIAN “Implication of ROS homeostasis in the mechanism of axillary bud outgrowth in rosebush (Rosa ‘Radrazz’)” SFBV 12^th congress, Strasbourg, July 2019, oral presentation.

Prices and awards:

2022: Dufrenoy silver medal of the French academy of Agriculture (AAF) for the excellence of PhD.

2019: 2^nd prize winner of the PROMEGA young researchers’ competition.

2017: Scholarship for the PhD in plant physiology at the University of Angers - INRAE funded by Angers Loire Metropôle and the region Pays de la Loire (RFI Objectif végétal)

Utbildning information

• 11/12/2020: PhD in molecular biology and plant physiology at the Angers University (France)

Dissertation Title: «Involvement of oxidative metabolism in the process of axillary bud outgrowth in the rosebush (Rosa ‘Radrazz’)”.

Research co-advised by the Pr. Alain VIAN and the Dr. Jérémy Lothier and supervised by the Dr. Vincent Guérin.

• 01/08/2017: Master’s degree in the Integrative plant biology: Genes, Plant, Agrosystem (BioVIGPA) program at the University of Nantes/Angers

- Obtained with honors.

Mentored by the Pr. Philippe SIMONEAU (Angers) and Pr. Philippe SIMIER (Nantes)

• 01/08/2015: Bachelor’s degree in plant biology and ecology at the University of Nantes

Obtained with honors.

Forskningsintressen

I am particularly interested in understanding the functioning of plant physiology and its regulation under stress (biotic and abiotic), especially through the study of metabolism and signaling pathways mediated by reactive oxygen species (ROS) and redox changes.