-Holder of a doctorate in plant biologie and microbiology, obtained in 1986 at the University of Science and Technology of Nice (France) with the mention "Very honorable" having held the following positions: Assistant Prof of microbiology at the University of Rennes (France) from 1986 to 1987 (doc position)- Research professor at the Department of Biotechnology, University of Oran 1 Ahmed Ben Bella since 1987- Director of a Research Laboratory "Biotechnology of Rhizobia and Plant Improvement" since its creation in 2007 until today.-- Founding member of the African Association of Biological Nitrogen Fixation (AABNF) since its creation. - Member of the scientific committee of several national and international congresses. - President of the African Association of Biological Nitrogen Fixation