Anne-Marie Delort is a senior scientist, director of research at the CNRS (DR1, 142 papers, 66 invited talks, 16 book chapters). Her expertise covers microbiology, biotechnology, and NMR spectroscopy, and metabolomics.She is a pioneer in cloud microbiology and recent studies concern the description of cloud microbiota diversity, the role of microorganisms in atmospheric chemistry and physics. In charge of aim 4c.