Cécile BERNARD
12 rue Buffon
75005 Paris
Involvement in local research management :
Involvement in research management at national level :
Leadership and/or participation in research programs :
Involvement with the Museum’s collections:
Involvement in the Museum’s educational programs:
Director of continuing education courses at the MNHN (average of 30 teaching hours equivalent to tutorial sessions per year). (1997–2003)
Research activities
My research activities, through the supervision of thesis students and the promotion of research in several national and international programs, are centered around several items:
By combining several approaches: morphological characteristics observable by light or electron microscopy, molecular characteristics that provide information on the phylogeny of the taxa studied, and diversity of functions (e.g. metabolites and molecules). The description and conservation of this diversity is a key activity of UMR7245 and the MNHN.
The databases obtained support scientific questions concerning the taxonomic and functional diversity of phytoplankton on several scales: local (water body), regional (Ile de France) and global (several regions of the world).
On a regional (e.g. Ile de France) or local (e.g. Lac Dziani, Mayotte) scale, the environmental contexts for the development of cyanobacteria and cyanotoxins are studied and analyzed using statistical modeling approaches that bring into play variables combining the morphological characteristics of water bodies and the nature of their catchment areas, geochemical, meteorological and biological characteristics (e.g. diversity of microbial communities and interactions).
These are studied in several models (from enzymatic tests and cell lines to medaka). The complementary nature of these models makes it possible not only to identify toxicity linked to the presence of clearly identified cyanotoxins, but also to characterize their mode of action through the characterization of targets using synergistic or competitive molecules.
Real-time monitoring and warning systems have been developed to manage the risks associated with cyanobacteria blooms and toxin production. Based on well-defined decision trees, decision support is provided to water body managers regarding the use of contaminated water bodies (drinking water, recreational activities or fish farming).