Mycorrhiza-induced resistance against the root-knot nematode Meloidogyne incognita involves priming of defense gene responses in tomato

► Lower root-knot nematode penetration of mycorrhizal tomato roots: molecular basis? ► SSH-library of genes up-regulated in AMF Meloidogyne incognita-tomato biocontrol interaction. ► Defense-related genes only up-regulated in the biocontrol interaction: priming. ► Role for phenylpropanoid pathway and ROS metabolism in nematode-biocontrol.