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Accueil du site > Scientific Departments > Plants-environment interactions > Teams > Plants adaptation to the environmental strength (APCE)

Plants adaptation to the environmental strength (APCE)


Research themes

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Salt stress in Arabidopsi
A. Savouré©UMR7618

Drought, salinity and pollution can have serious negative consequences on crop productivity and the distribution of wild species.
With global climate change and an increasing world population, it is even more urgent to understand how these stresses affect plant growth.

The aim of our research is to understand the potential of plants to adapt to abiotic stresses such as drought, salinity, with a particular focus on the role of mitochondria in these processes.

So, how do plants tolerate and adapt to a changing environment ?
Under abiotic stresses, plant mitochondria appear to be a key player in perceiving stress, triggering tolerance mechanisms, and then resuming growth when conditions become favourable again. Mitochondria do this by (i) supplying energy via ATP synthesis, (ii) generating metabolic flux from proline or ornithine catabolism, for example, and (iii) regulating redox homeostasis by modulating the NADH/NAD ratio and reactive oxygen species.

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Proline standard curve
S. Planchais©UMR7618

Our laboratory works on several plant species :

Arabidopsis thaliana is a model plant with many natural accessions which can be used for in-depth molecular, biochemical and genetic studies.
Eutrema salsugineum/Thellungiella salsuginea, a close relative of A. thaliana, is an extremophile adapted to harsh saline environments.
In an international network of collaborations, we are also working on European searocket (Cakile maritima, Tunisia), wheat (Triticum turgidum, Algeria) and cowpea (Vigna unguiculata, Algeria).
In an iEES collaboration on urban trees, we are also working on the characterization of stress markers in silver lime (Tilia tomentosa).

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Arabidopsis, Eutrema, Vigna and Tillia
A. Savouré et S. Planchais©UMR7618

Using these various species and accessions we aim to gain a comprehensive understanding of the role of respiration and associated metabolism in plant adaptation to environmental constraints at both ecophysiological and evolutionary levels.

Most of our team members are Professors or Associate Professors who are involved in teaching biology and plant physiology at UPMC. We also provide training for Bachelor and Master students through internships in the laboratory.

Our main expertise lies in plant stress physiology, mitochondrial respiration, biochemistry, proline and amino acid metabolism, and plant development.

Arnould SAVOURE, PU UPMC et APCE team leader