The sediments of most aquatic environments and some stratified water columns contain a so-called transition zone characterized by strong physico-chemical gradients (e.g., oxygen, redox). These regions of steep gradients are ecologically highly coveted, particularly due to the overlap of reduced and oxidized chemical species. They represent a hotspot for biological innovation and are thus the origin of numerous adaptations.
My research aims to understand the mechanisms developed by microorganisms to thrive in such habitats. I am particularly interested in motility, chemotaxis, magnetotaxis, the biomineralization of nano-magnets, the biomineralization of carbonate phases, phosphorus hyperaccumulation, symbiosis, and predation. My research is based on an integrative approach thanks to the expertise and equipment available in my institute and within my network of collaborators.
Christopher.LEFEVRE@cea.fr
06 34 55 36 39