Home | Legals | Sitemap | KIT

Molecular Markers for Improved Water and Nitrogen Use Efficiency

Analysis of Root Growth, Aquaporins and Phosphoenolpyruvate Carboxylase
Arabidopsis and poplar

Within our project we aim to identify genetic factors (molecular markers) that determine root architecture in the model plants Arabidopsis and poplar (Botany, University Freiburg) in view of an optimized water uptake from the soil. Moreover we will generate transgenic poplar lines with modified water use (water use efficiency) and nitrogen exploitation (nitrogen use efficiency) by changing gene expression of aquaporines (water-leading pores in biomembranes; IMK-IFU) and components, like phosphoenolpyruvate (PEP) carboxylase (Tree Physiology, University Freiburg), an enzyme that influences carbon allocation and N assimilation in leaves and roots.

Analysis of biomass production in these transgenic poplar mutants will focus on (i) resource use efficiency (RUE) and emission of volatile organic compounds (VOC) and (ii) changes in C- and N-allocation.