Systemic Root-Shoot Signaling Drives Jasmonate-Based Root Defense against Nematodes (Current Biology)

Wang et al. show that a systemic root-shoot signaling loop, which integrates electrical, ROS, and JA signals, enhances resistance against root-knot nematodes in tomato. Nematode attack induces the systemic transmission of electrical and ROS signals that activates MPK1/2 and induces JA synthesis in leaves, resulting in defense against nematodes.