Pectin methylation changes upon metal ion exposure
The pectin component, homogalacturonan (HG), is synthesized and incorporated in the cell wall in a highly methylesterified form. Upon demethylation HG establishes intramolecular calcium/metal ion bridges, the so-called egg-box structures important for cell wall stiffening. This project tackles the role of HGs in heavy metal ion capturing and sensing using the model plant Arabidopsis thaliana and molecular genetics, cell biological and biochemical approaches.
Keywords: cell wall, pectin, signal transduction, heavy metals, trace elements, cadmium, nickel, zinc, lead, copper
Contact: Marie-Theres Hauser e-mail