Water Relations in Plants | Aquaporins


FotoAmodeoGabi Dra. Gabriela Amodeo
Investigador Responsable, Dra. en Biología Universidad Nacional del Sur, Profesora Adjunta BBE FCEN UBA, Investigadora principal CONICET, IBBEA

Our research group works in the area of plant physiology and biophysics, exploring water relations in vascular plants from the cell to the organismic level, studying not just model plants but also species with agroindustrial potential.

Our projects

Water relations: Aquaporins (Gabriela Amodeo)

Our lab is focused on the study of plant water relations. Our goal is to understand how the cell to cell pathway contributes to the water dynamics, analyzing in particular aquaporins as main water gateways not merely at the level of the plasma membrane but also for intracellular membranes (TIPs, NIPs and others). To achieve our goals we employ different species (Beta vulgaris, Sorghum, Arabidopsis) and work with different but complementary approaches: i) the biophysics of aquaporins, studying their intrinsic properties, regulatory mechanisms and signaling; ii) the physiology of water relations, dissecting in the whole plant or in specific organs the transcellular water pathways, so as to understand how aquaporins might improve water adjustments under environmental challenges.

Biophysics in Aquaporins (Marcelo Ozu)

Our research project is focused on the biophysical properties of transport phenomena through aquaporins and its relationship with cell mechanics. Our goal is to elucidate the mechanism of mechanical regulation in aquaporins. The working group combines molecular biology and biophysical methods for the study of water and solute transport with mathematical modeling and computer simulation techniques.

Water relations: Acclimation of photosynthesis and transpiration to the environment (Irene Baroli)

Our goal is to study the morphogenetic response of plants to their environment, with emphasis on the physiology of photosynthesis and transpiration processes, using Arabidopsis thaliana as a model plant. In particular we want to characterize the mechanism of acclimation to light intensity at the level of the leaf mesophyll, and the mechanism of signal transduction of the shading signal, which is perceived by the mature leaves leading to the acclimation of newly formed leaves acting on the shoot apical meristem.

Water relations: Stomata and mechanisms of biotic interactions (Gustavo Gudesblat)

The goal of our research is to understand how different microorganisms, pathogenic or beneficial, succeed in evading the stomatal response of their hosts in order to colonize them through these pores. We also want to understand the role of aquaporins in the regulation of stomatal aperture.

Developmental and technological projects (Gabriela Amodeo)

Water and nutrient management in Eucaliptus seedlings employed in forestry.