UPR 5301

A receptor required for chitin perception facilitates arbuscular mycorrhizal associations and distinguishes root symbiosis from immunity

Leguminous plants are capable, by detecting chitin oligosaccharides emitted by microorganisms present in the soil, of triggering defensive (immune) responses or, conversely, beneficial (symbiotic) responses that allow them to better absorb nutrients (water, nitrogen, phosphorus, potassium). In this study, the authors demonstrated in the model legume Medicago truncatula that the receptor LYK8, by forming a complex with other proteins, enables the plant to distinguish between the two signaling pathways to promote the activation of symbiotic response.

This new publication by Sébastien Fort (CNRS Research Director) results from a collaboration with Oklahoma State University , University of Cambridge, and LIPME – Laboratoire des Interactions Plantes Microbes Environnement.

It is available in open access, in the HAL collection : https://hal.science/hal-04601841