From CEF

Membres: JorgeRamirez

Jorge Andres Ramirez C.

The functional role of carbohydrate reserves in the growth and survival of trees
Chaire Hydro-Québec sur le contrôle de la croissance des arbres
Université du Québec à Montréal

Directeur: Christian Messier
Codirecteur: Juan Posada
Codirecteur: Tanya Handa



Terrestrial plants inhabit environments in which a variety of stress factors occur unpredictably, reducing the rates of photosynthesis, growth, and survival. One important way for plants to deal with these disturbances is to have carbohydrate reserves, mainly non-structural carbohydrates (NSC) that can be mobilized to enhance recovery and survival following periods of negative carbon balance. NSC concentrations in plants co-vary with the position of species along the growth-survival trade-off continuum and with some functional traits such as shade tolerance, specific leaf area, tissue density, fiber content, and biomechanical strength. Nevertheless, there is still considerable uncertainty about how NSC contribute to the success of plants in response to single and multiple stress factors simultaneously. The aim of this research is to provide a comprehensive picture of the role of NSC in the carbon budget of plants and possible trade-offs with other functional traits in tropical and temperate tree species.


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