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Mass Spectral Imaging to Map Plant-Microbe Interactions.

Gabriel D Parker1, Luke Hanley1, Xiao-Ying Yu2

  • 1Department of Chemistry, University of Illinois Chicago, Chicago, IL 60607, USA.

Microorganisms
|August 26, 2023
PubMed
Summary
This summary is machine-generated.

Mass spectrometry imaging (MSI) advances plant-microbe interaction studies, offering molecular insights into plant biology and sustainability. New methods improve sample preparation and data analysis for better understanding of these crucial relationships.

Keywords:
MALDISIMSmachine learningmass spectrometry imagingmetabolitesmetabolomicsmultivariant analysisplant–microbe interactionssample preparation

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Area of Science:

  • Plant Biology
  • Microbiology
  • Systems Biology
  • Analytical Chemistry

Background:

  • Plant-microbe interactions are vital for plant sustainability, biomass production, and overall plant biology.
  • Detecting these interactions has been challenging, but mass spectrometry imaging (MSI) offers new possibilities.
  • Interactions occur in distinct plant regions: rhizosphere, endosphere, phyllosphere, and spermosphere.

Purpose of the Study:

  • To review challenges and advancements in studying plant-microbe interactions using MSI.
  • To highlight the importance of sample preparation and compare various MSI techniques.
  • To discuss the potential of MSI for molecular-level understanding of these interactions.

Main Methods:

  • Overview of major MSI techniques: time-of-flight secondary ion mass spectroscopy (ToF-SIMS), MALDI, LDI/LDPI, and DESI.
  • Discussion of sample preparation methods, contrasting traditional approaches with newer live-cell analysis.
  • Introduction of microfluidic devices for vacuum-compatible MSI analysis with subcellular resolution.

Main Results:

  • MSI provides molecular-level insights into plant-microbe interactions, including single-cell communication.
  • Advancements in MSI, particularly in the last five years, show promising results.
  • New developments, including machine learning, enhance MSI data output for microorganism studies.

Conclusions:

  • MSI is a powerful tool for investigating plant-microbe interactions at a molecular and subcellular level.
  • Improved sample preparation and advanced MSI techniques are crucial for accurate analysis.
  • Future research utilizing MSI and machine learning will further elucidate complex plant-microbe relationships.