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A needle-type micro-sampling device for collecting nanoliter sap sample from plants.

Panpan Gao1, Toshihiro Kasama1, Maia Godonoga1

  • 1Microfluidic Integrated Circuits Research Laboratory, Department of Bioengineering, School of Engineering, The University of Tokyo, 113-8656, Tokyo, Japan.

Analytical and Bioanalytical Chemistry
|March 18, 2021
PubMed
Summary

Researchers developed a novel micro-sampling device for plant sap analysis. This minimally invasive tool enables precise measurement of physiological parameters, advancing plant research capabilities.

Keywords:
Dynamic measurementsMicro-needle deviceMinimum invasive collectionOnsite sampling deviceQuantitative sample manipulationSample injector

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Area of Science:

  • Plant physiology
  • Biotechnology
  • Analytical chemistry

Background:

  • Accurate measurement of plant physiological parameters is crucial for understanding plant responses to environmental changes.
  • Plant sap analysis offers insights into plant health, but requires effective sampling methods.

Purpose of the Study:

  • To develop and evaluate a minimally invasive micro-sampling device for plant sap collection.
  • To demonstrate the device's capability in analyzing dynamic changes in plant sap composition.

Main Methods:

  • A needle-type micro-sampling device was designed to collect nanoliter quantities of plant sap.
  • Sampling performance was assessed for reproducibility.
  • The device was used for continuous sap collection to analyze potassium ions, plant hormones, and sugars.

Main Results:

  • The micro-sampling system demonstrated high reproducibility (3%) in performance assessments.
  • Continuous sap collection and analysis of key physiological components were successfully achieved.
  • The study confirmed the feasibility of the developed micro-sampling device.

Conclusions:

  • The developed micro-sampling device is effective for collecting plant sap with high precision.
  • This technology holds significant potential for real-time monitoring of plant physiological status.
  • It paves the way for advanced plant research and precision agriculture applications.