1. Laboratory of Genetic Resources and Biotechnology, École Nationale Supérieure d’Agronomie (ENSA), Algiers, Algeria
2. Laboratory of Molecular Ecology of the Rhizosphere, Institute of Biology I – RWTH Aachen University, Worringerweg, Aachen, Germany
3. Max-Planck-Institut für Molekulare Pflanzenphysiologie, Potsdam, Germany