In my PhD project, I explore how plants respond to volatiles, i.e. odours, emitted by soil-borne fungi, and how this affect plant growth and insect-plant interactions. For this, I combine microbial ecology, entomology and chemical ecology expertises, and perform greenhouse and field experiments. Ultimately, these findings may give us insight of the ecological consequences of fungal volatiles on plant bio-interactions, and thus on plant health.