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Using Aphids to Measure Turgor Pressure Inside Sieve Elements.

Nick Gould1, Peter E H Minchin2, Michael R Thorpe3

  • 1The New Zealand Institute for Plant and Food Research Limited, Te Puke, New Zealand. nick.gould@plantandfood.co.nz.

Methods in Molecular Biology (Clifton, N.J.)
|June 15, 2019
PubMed
Summary
This summary is machine-generated.

Researchers developed a new method to measure phloem hydrostatic pressure in vivo. This technique uses aphid stylets to directly access the phloem, aiding the study of plant transport systems.

Keywords:
Aphid stylectomyHydrostatic pressurePhloemPhloem pressure probe

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Area of Science:

  • Plant Biology
  • Plant Physiology
  • Biophysics

Background:

  • The phloem is crucial for long-distance transport of photoassimilates in plants.
  • Phloem tissue is vulnerable to damage, hindering its study and understanding.
  • Understanding phloem hydrostatic pressure is key to comprehending phloem flow mechanics.

Purpose of the Study:

  • To develop a novel method for direct, in vivo measurement of phloem hydrostatic pressure.
  • To overcome technical challenges associated with studying the phloem.
  • To advance the comprehension of phloem flow mechanics.

Main Methods:

  • Development of a technique for direct transient measurements.
  • Utilizing excised aphid stylets for phloem access.
  • In vivo measurement of phloem hydrostatic pressure.

Main Results:

  • Successful direct, in vivo measurement of phloem hydrostatic pressure was achieved.
  • The method provides a new tool for studying phloem function.
  • The technique overcomes previous limitations in phloem research.

Conclusions:

  • Direct measurement of phloem hydrostatic pressure is feasible using aphid stylets.
  • This method offers new insights into phloem transport and mechanics.
  • Further research into phloem physiology can be facilitated by this technique.