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Electrical Responses Associated with Wound-Induced Priming in Lima Bean Plants

CSEF · 2026 Plant Biology (Senior Division)

Tyler Sterry

Overview

Plants can communicate stress signals to neighboring plants, which may prime them for faster defense responses. Electrical signals are among the earliest physiological responses to wounding and help trigger systemic defense pathways. This study investigated whether exposure to a wounded lima bean plant alters the wound-induced electrical signaling response of a neighboring plant grown in the same pot. Electrical signals were recorded using Ag/AgCl electrodes connected to a custom recording system. Primed plants reached peak electrical response significantly faster than unprimed plants (102s vs 157s, p = 0.036), representing an approximately 35% faster response. Signal magnitude did not differ significantly (p = 0.357). These results indicate that plant-to-plant communication influences the timing of early electrical defense signaling rather than signal strength.

Competition history

  • CSEF 2026 Plant Biology (Senior Division) · Entry S-18-06

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