Investigating Interplant Communication Through Mycorrhizal Networks

Overview

Modern agriculture faces increasing environmental stress, including drought, pests, and soil degradation. Crops are often treated as independent organisms, yet recent research suggests underground fungal networks (mycorrhizae) may allow plants to share stress signals. To help prove this idea, we conducted an experiment to explore how mycorrhizal networks affect the height of mung beans (Vigna radiata) when manipulated negatively. This experiment consisted of 5 trials comparing the growth of 8 plants in one pot: one pot contained 4 mung bean plants grown together with no restrictions, and the other pot contained 4 mung bean plants separated by a paper towel, with 2 plants on each side. After germinating all the seeds together, we placed a seed on one side of each pot, resulting in 40 seeds across all 5 trials. On the 7th day, we cut two leaves from each plant on one side of each pot. The data showed that the non-affected plant’s leaves were, on average, 0.5 cm shorter and drooping rather than facing upwards compared to the plants with the barrier. The results suggest that underground connectivity may influence plant stress responses. Although fungal structures were not directly measured, the results provide indirect evidence supporting the potential role of shared soil in mediating interplant interactions.

Competition history

• CSEF 2026 Plant Biology (Senior Division) · Entry S-18-02

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