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Needle/electrode insertion device for measuring plant electrical signals.

Miguel Ángel García Servín¹, Amanda Kim Rico Chávez¹, Magdalena Mendoza Sánchez²

¹Center of Applied Research in Biosystems-Centro de Investigación Aplicada en Biosistemas (CARB-CIAB), Facultad de Ingeniería, Universidad Autónoma de Querétaro-Campus Amazcala, Carr. Chichimequillas Km 1.0, El Marqués, Querétaro, C.P 76265, México.

Journal of Plant Research

|March 4, 2025

Summary

Researchers developed a new device for more consistent plant electrical signal measurements. This innovation improves data stability and repeatability, aiding crop research and stress response studies.

Keywords:

Drought Electrophysiology Plant stress

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Area of Science:

Plant electrophysiology
Agricultural technology
Bio-signal measurement

Background:

Plants generate electrical signals in response to environmental stimuli for physiological information transmission and defense.
Understanding these signals could enable mimicking stimuli to elicit beneficial crop responses.
Manual electrode insertion methods yield inconsistent data due to insertion variability.

Purpose of the Study:

To develop and evaluate a novel device for standardized electrode insertion in plant tissues.
To improve the consistency, stability, and repeatability of plant electrical signal measurements.

Main Methods:

Manufactured a prototype electrode/needle insertion device using aluminum and acrylic.
Utilized the device to measure electrical signals in *C. annuum* (pepper) plants.
Compared signal data obtained with the device against traditional manual insertion techniques.

Main Results:

The device demonstrated consistent insertion characteristics, including depth and alignment.
Electrical signals captured using the device showed enhanced stability and repeatability.
Measurements with the device were more uniform compared to manual insertion.

Conclusions:

The developed insertion device significantly improves the reliability of plant electrical signal measurements.
This technology facilitates more accurate data collection for studying plant responses to stimuli.
Enhanced signal measurement consistency supports research aimed at improving crop resilience and yield.