Prof. Chedly Abdelly
National Agency for scientific Research
BiographyProf. Chedly Abdelly is Head of the Laboratory of Extremophile Plants (LPE) in the Centre of Biotechnology of Borj-Cedria (CBBC), General Director of CBBC from March 2011 to October 2017 and General Director of National Agency for scientific Research Promotion (ANPR) since November 2017. Prof. Abdelly obtained his Thesis of Doctorate of State in Natural Es-Sciences (specialty: plant ecophysiology) at the Faculty of Sciences of Tunis in 1997. His research activities include the characterization and valorization of halophytes and xerohalophytes (as sources of fodder, feed, and bioactive substances), and the investigation of plant responses to abiotic constraints such as drought nutrient deficiencies (especially iron and phosphorus) and heavy metal contaminations (Phytoremediation). Prof. Abdelly has published more than 400 articles in peer-reviewed journals, written 25 book chapters, edited a book on Biosaline Agriculture and High Salinity Tolerance, and holds 3 patents (H index: 52, citation number: 11092). He has directly supervised 35 Masters Students and 60 PhD students. Prof. Abdelly has also been involved in 11 international collaboration projects, several national projects, and 06 agreements with economic partners. Holder of the National Prize for Research in Biotechnology, July 2016.
Plant responses to the combined effects of abiotic constraints: additive or specific effects?The study of the plant responses to abiotic constraints has progressed considerably in recent years. But the response of a plant to an isolated or unique constraint under controlled condition is generally different to its behavior in its biotope where plant was often subjected simultaneously to several constraints. Thus under conditions where several constraints are operational, the metabolism of the plant can be affected in a new way that would be different from that induced by the different constraints taken separately. These conditions could induce new responses compared to those induced by these constraints considered individually. Thus, interest is currently being given to the combined effect of these constraints. The analysis of several data shows that the response of plants to the combined effects of several constraints is unique (resulting in some cases of positive or negative interactions or lack of interactions) or specific and can not be directly extrapolated from the response of the plants to each of the constraints applied individually. This characteristic is to be considered in the context of climatic changes marked mainly by simultaneous variations of several factors, mainly the warming and the elevation of the concentration of CO2 in the atmosphere as well as in the research program on the improvement of the crop productivity under environmental constraints.