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Monitoring Plant Hormones During Stress Responses
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Hormone Profiling in Plant Tissues.

Maren Müller1, Sergi Munné-Bosch2

  • 1Departament de Biologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Avinguda Diagonal 645, E-08028, Barcelona, Spain.

Methods in Molecular Biology (Clifton, N.J.)
|November 20, 2016
PubMed
Summary
This summary is machine-generated.

This study presents a rapid and accurate method for quantifying plant hormones, crucial for understanding plant growth and stress responses. The new protocol enables high-throughput analysis of these vital chemical messengers in various plant tissues.

Keywords:
Abscisic acidAuxinBrassinosteroidsCytokininsEthyleneGibberellinsJasmonatesMelatoninPlant hormonesSalicylic acidUPLC/ESI-MS/MS

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Area of Science:

  • Plant Biology
  • Biochemistry
  • Analytical Chemistry

Background:

  • Plant hormones regulate critical life cycle processes and stress responses.
  • Studying hormonal regulation involves exogenous application, correlative studies, or genetic modifications.
  • Accurate plant hormone profiling is essential for understanding complex hormonal interactions, but challenging due to low endogenous levels.

Purpose of the Study:

  • To describe a sensitive, rapid, and accurate method for quantifying major plant hormones and growth regulators.
  • To facilitate high-throughput plant hormone profiling across diverse plant tissues.
  • To overcome the challenges associated with low abundance of plant hormones in tissues.

Main Methods:

  • A streamlined extraction procedure without purification or derivatization.
  • Ultrahigh-performance liquid chromatography coupled to electrospray ionization-tandem mass spectrometry (UHPLC-MS/MS) analysis.
  • Quantification of five classic plant hormone classes, jasmonates, salicylic acid, melatonin, and brassinosteroids.

Main Results:

  • The described method is sensitive, rapid, and accurate for plant hormone quantification.
  • The protocol simplifies extraction, reducing time-consuming steps.
  • The UHPLC-MS/MS approach enables high-throughput analysis.

Conclusions:

  • This optimized protocol significantly advances plant hormone profiling capabilities.
  • The method supports research into hormonal regulation of plant physiology and stress responses.
  • It is applicable to various plant tissues, aiding broad scientific discovery.