Cross-kingdom communication between plants and parasitic nematodes.
Bell CA, Derevnina L, Eves-van den Akker S
Plant Signaling
Root-knot nematodes silently devastate vegetable gardens worldwide — understanding how they eavesdrop on your tomato's chemical signals is the first step toward growing crops that can talk back.
Tiny worm-like creatures called nematodes live in soil and invade plant roots, causing serious damage to crops. It turns out plants and these worms are constantly sending each other chemical messages — the worms sniff out plants and manipulate them, while plants try to fight back or adapt. Soil bacteria and fungi help carry some of these messages, meaning the whole underground world is part of this ongoing negotiation.
Key Findings
Parasitic nematodes detect host-derived metabolites, proteins, and RNA molecules to locate plants and assess their condition before attacking.
Plants actively respond to nematode-produced pheromones and proteins, triggering defenses or, in some cases, accommodating the parasite.
Soil microbes mediate communication between plant and nematode, influencing developmental decisions in both organisms — making parasitism success a three-way conversation, not a two-way one.
chevron_right Technical Summary
Plants and parasitic nematodes are locked in a sophisticated back-and-forth chemical conversation that determines whether the parasite succeeds or fails. Soil microbes act as go-betweens, and the outcome hinges on how each party interprets the other's signals at critical moments in the nematode's life cycle.
Abstract Preview
Plant-parasitic nematodes and their hosts engage in a continuous exchange of signals cross-kingdom. On the one hand, parasites exploit host-derived metabolites, proteins, and RNAs to sense host ide...
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